Senior Software Engineer

.Net, C#, JavaScript/TypeScript, Razor, GraphQL

Fully Remote working

Competitive salary plus great employee benefits package

A fast growing and dynamic global software company with offices in the USA, Australia and the UK are looking to recruit a Senior Software Engineer to work for their European team on a fully remote basis. This company make a leading online web system for the global housing industry – this company are the world leader in their sector and to grow this team extensively over the next 12 months. So, this is a chance to be part of a new team building a very successful set of web applications.

This is a fantastic job opportunity for a Senior Software Engineer with a background in C# .Net and JavaScript/TypeScript technologies who enjoys working in an innovative team environment and who enjoys building high performance software that is at the absolute forefront of its industry.

This Web Development team operate a flat structure and allow their developers to interact with different departments and teams to show their creative side. You will be working on new projects on the core web platform with other great developers in the UK.

This role would suit a Developer who:

* Has a can-do attitude and enjoys working in a team environment.

* Enjoys taking ownership on technical projects

* Is keen to mentor (but not manage) junior developers

* Enjoys knowledge sharing and using the latest web technologies

Skills in the following would be useful:

* .Net Framework and .Net Core

* Visual Studio or VSCode

* C#,

* JavaScript (or TypeScript)

* Razor

* T-SQL

* Git

Bonus points if you have used any of the following:

* Azure or AWS

* Kubernetes & Docker

* TDD / Agile

This global software company are committed to keeping their employees engaged, challenged and rewarded. You will have the opportunity to attend regular Development team events, professional development opportunities and potentially travel overseas to their international offices if this is of interest.

This company prides itself on taking care of its employees and customers. Their culture and values are the foundation of their success and at the core of the business. They focus on customer service, teamwork, positive attitudes, taking responsibility, building relationships, managing expectations and ultimately on passion, innovation, care and enthusiasm.

This Senior Software Engineer will be joining a fantastic team, working fully remotely on SaaS applications used by millions of people every single day

Please apply with your CV to find out more?

Job Title: Embedded Software Engineer Location: Cambridge Salary: £45,000 to £57,000 basic + benefits Embedded Software Engineer A long‑established leader in real‑time communication technologies is seeking a Senior Software Engineer to join its engineering team. This organisation develops advanced wired and wireless communication systems used across a range of industries. Its engineering teams are known for delivering reliable, scalable and high‑performance solutions that support mission‑critical communication. This role is based in a modern engineering office within the Cambridge Research Park. Hybrid role offered 2-3 days WFH on a typical week. About this Embedded Software Engineer role You will work as part of an Agile development team, contributing to the design, development, analysis and testing of their products. The position suits someone who is comfortable taking a project from initial requirements through to final delivery, and who enjoys working across a range of platforms. Key Responsibilities - Embedded Software Engineer Design and develop embedded software using C & C++. Participate in code reviews and contribute to functional specifications. Work within Agile and LEAN methodologies as part of a scrum team. Develop on Linux platforms, from drivers to applications, networking and debugging tools. Maintain and enhance existing features across multiple product lines. Skills and experience - Embedded Software Engineer Strong understanding of the software development lifecycle. Experience with object‑oriented analysis and design. Proficiency in embedded C & C++ development. A collaborative mindset and strong communication skills. High attention to detail and motivation to work in a fast‑paced environment. Nice to have skills: Experience with networking technologies. Experience with multi-threading. Experience using AI in your day-to-day role to either help increase your output/productivity or to aid proficiency in languages you are less familiar with. Javascript, Typescript - They have web interfaces built into some of their products. Good understanding of hardware and/or things like Raspberry Pi. What You Can Expect Opportunities to design, implement and test software and custom hardware A chance to build on existing features and contribute to new product development Collaboration with skilled engineers across multiple time zones A supportive environment that values knowledge‑sharing and continuous improvement

Senior Full-Stack Engineer / Software Developer / JavaScript Engineer (Node.js / React / Next.js – AWS Serverless) London (Hybrid – Farringdon Tues/Weds/Thurs) £85k–£90k + Bonus + Excellent Benefits Discretionary bonus (10%), Private Healthcare, 25 Days holiday, 5% pension, Life Insurance, 2 Volunteering days a year, Season Ticket Loan Do you love solving complex problems and building products real people rely on every day? This well-established company has spent 25 years helping some of the world’s most iconic music and media brands tell their stories. With a team of 140 and a deep commitment to craftsmanship, they create stable, high-quality products that professionals actually depend on. We’re particularly interested in engineers who enjoy owning both the frontend experience and the Node.js APIs behind it. You’re a thoughtful, solutions-driven engineer who cares about architecture, performance, scalability, and long-term product impact. You don’t just close tickets, you take ownership, think systemically, and write clean, maintainable code across the entire stack. Collaboration is second nature. You enjoy pairing, knowledge sharing, and healthy technical debate, plus you’re curious about tooling, infrastructure, and how AI can enhance your workflow. The Role: You’ll join a small, cross-functional team spanning product, design, research, engineering, and operations. It’s a flat structure built on shared ownership and trust, with real influence over what gets built and how. You’ll work across the full stack, building polished frontend experiences while also designing and developing Node.js APIs and backend services that power them. Key areas of work include: \* Building modern frontend applications with React and Next.js \* Designing and developing Node.js APIs \* Creating scalable backend services within AWS serverless architecture \* Solving complex workflow and discovery challenges \* Improving performance, reliability, and system scalability \* Collaborating closely with product, design, and research teams What Success Looks Like: Within your first 6–12 months, you will have: \* Delivered production-ready Node.js APIs supporting key product workflows \* Shipped high-quality React / Next.js features used by customers every day \* Contributed to architecture decisions across frontend and backend services \* Improved performance and reliability of key product areas \* Helped shape engineering practices around code quality, testing, and maintainability Tech Stack: \* TypeScript / JavaScript \* Node.js (API development) \* React, Next.js \* AWS Serverless (Lambda, API Gateway) \* Vercel \* SQL Server \* Algolia \* CI/CD (TeamCity) You Might Be a Good Fit If: \* You’re a JavaScript / TypeScript engineer who enjoys working across the full stack \* You have experience building Node.js APIs or backend services \* You enjoy building clean, performant React / Next.js applications \* You care about architecture, maintainability, and product quality \* You enjoy collaborating closely with design, product, and engineering teams What You’ll Find: \* A thoughtful, craft-led engineering culture \* Time to make sound architectural decisions \* Close collaboration with product and design \* Genuine ownership and accountability \* A stable, commercially established business delivering real impact in music and media This isn’t “move fast and break things.” It’s about building well, sustainably, and responsibly while solving complex, meaningful technical problems. If you’re a Senior JavaScript engineer who enjoys building both great user experiences and the APIs behind them, apply now or contact Simon Morris at Ithika Recruitment for a detailed discussion. Ithika Recruitment — partnering world-class talent with world-class companies

Cardiff (Hybrid / Flexible Working)
Up to £55,000 + bonus + benefits

CPS Group are working with a financial technology company who are looking for a Senior Software Engineer with strong React experience to join their engineering team. This is an opportunity to work on modern digital lending platforms, building scalable software used by financial organisations across Europe.

You’ll be joining a collaborative engineering environment where developers are encouraged to challenge ideas, improve products and build new solutions from the ground up.

As a Senior Software Engineer, you will play a key role in designing and developing modern applications within an Agile engineering team. You’ll contribute to both new product development and enhancement of existing platforms, helping deliver high-quality software solutions.

This role would particularly suit someone with strong React / TypeScript experience who enjoys working across the stack and contributing to engineering standards and best practices.

Key Responsibilities

Develop high-quality software aligned with product and user requirements

Build and maintain modern front-end applications using React and TypeScript

Work closely with Product Owners and engineers to define and deliver new features

Develop and integrate APIs and backend services where required

Participate in Agile ceremonies and collaborative planning

Contribute to automated testing and CI/CD pipelines

Support feature deployment and end-to-end delivery

Mentor junior engineers and promote strong engineering practices

Required Skills & Experience

Strong experience with React and TypeScript

Experience building or integrating with REST APIs

Solid understanding of Git-based version control workflows

Experience with automated testing (unit/integration)

Knowledge of SQL databases such as PostgreSQL or Oracle

Experience with CI/CD tools (e.g. Jenkins or similar)

Strong problem-solving skills and ability to work collaboratively in Agile teams

Excellent communication skills

Desirable Experience

Java and Spring Boot backend development

Cloud platforms such as AWS, Azure or GCP

Containerisation tools such as Docker

Frontend testing tools (WDIO, Selenium, etc.)

Financial services or fintech experience

Experience using AI tools within development workflows

Contact: Zach Bennett - CPS Group

By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed)

Senior Java Developer / Backend Software Engineer (Java Spring Boot) London / WFH to £85k

Are you a Software Engineer looking for an opportunity where you can make an impact?

You could be progressing your career in a senior, hands-on role at a growing US based tech company that provide a platform for gaming and gambling businesses to retain their customer base, as they expand their UK presence.

As a Senior Java Developer you will be instrumental in helping the company to bring all tech inhouse; you’ll design and develop new features and enhancements to the core platform as well as maintaining and supporting the current systems. You’ll be collaborating with the project team and wider organisation, contributing to technical discussions and taking direction from the CTO.

Location / WFH:

You’ll join the team in London three days a week with flexibility to work from home twice a week.

About you:

• You’re an experienced, backend focused, Software Engineer / Developer with a broad knowledge of building software products and associated architectures
• You have strong Java development skills including a good knowledge of Spring Boot and microservices
• You have experience with public cloud technologies, AWS preferred
• You have a good appreciation of front end technologies e.g. JavaScript / TypeScript, Angular, HTML, CSS
• You’re collaborative and pragmatic with excellent communication skills

What’s in it for you:

• Competitive salary, to £85k
• Continuous career growth and self-development opportunities
• Impactful role at a growing company

Apply now to find out more about this Senior Java Developer / Backend Software Engineer (Java Spring Boot) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Software Engineer / Developer (JavaScript / TypeScript Node) Remote UK to £50k

Would you like to work on complex and interesting AI based systems with a team of tech entrepreneurs?

You could be joining a growing start-up that is utilising Machine Learning and AI technology to revolutionise fish farming, improving fish health and growth; their carbon neutral technology is already making a difference in Scotland, Chile, Canada, Australia, Spain and Norway and the company has ambitious growth plans.

As a Software Engineer you will work on a range of projects across the technology stack, primarily using JavaScript / TypeScript and Node.js (with React on the front end). You’ll be developing software solutions that will be used by farms globally, building complex backend systems as well as developing data visualisations and dashboards that transform real time data from the IoT platform into actionable insights.

There are excellent career progression opportunities as the company continues to scale; you’ll be an integral part of a small, distributed team.

Location / WFH:

You can work from home remotely from anywhere in the UK, there is also flexibility to work abroad for periods throughout the year and flexible start and finish times. There are two company ‘kick-off’ meetings per year at great destinations for a week at a time.

About you:

You have strong JavaScript / TypeScript skills

You also have experience of using Node

You’re proactive, keen to contribute ideas and continually develop your skills

You’re able to work independently whilst collaborating with a remote, international team in an Agile environment

You’re likely to be degree educated in a STEM discipline

What’s in it for you:

Salary to £50k

Remote working (including abroad)

Paid for training and certifications

Home office budget

Bi-annual company kick-offs

Pension

Apply now to find out more about this Software Engineer / Developer (JavaScript / TypeScript Node.js) remote opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

TPBN1_UKTJ

I'm working with a small boutique Consultancy who are looking to hire a highly technical experienced Senior/Lead Automation Engineer. You'll be joining a small passionate team that build software that sits at the heart of major organisations and helps them meet complex regulatory demands. The team are remote first so you can be based anywhere in the UK for this role. They have one more Junior Tester and are now looking for a experienced Senior/ Lead QA experienced with automation to be the senior figure within the team. They want someone who can build a proper QA strategy and help them get better processes in place, collaborate with DevOps on CI/CD and QA practices, and drive staged, holistic improvements and also support and mentor their more Junior QA. You'll be shaping quality from the very start, challenging requirements, spotting risks early, and ensuring what gets released is robust, secure, and built to last. This role also has a consultative edge. You'll work closely with some of their larger enterprise clients, helping define sensible test strategies that fit their systems and business goals. You'll review code, guide teams on quality best practice, and communicate clearly with both technical and non technical stakeholders. Ideally you'll have experience testing complex platforms, particularly in regulated or high risk environments such as finance, compliance, or similar enterprise domains etc where its critical to get things right. along with strong automation skills in tools like Playwright/ Cypress Typescript and ideally C#. You'll work closely with their end clients and design and maintain automated test frameworks across modern web applications, covering Angular front ends and .NET back ends and will actively review both internal team code and external client-side code to ensure adherence to best practices, security protocols, and performance benchmarks. There's a strong focus on automation and API testing, so you should be comfortable building frameworks , along with experience of testing REST Api's and familiarity with cloud environments such as Azure and CI/CD pipelines. You'll be joining a small, high calibre team that values thoughtful engineering, respectful collaboration, and building things that genuinely matter. If you enjoy solving hard problems, influencing how software is built, and working remotely with talented people, then I would love to hear from you. Salary is up to £80,000. If you'd like to hear more please reply below to Sam Miller at SR2. Socially Responsible Recruitment

Senior Software Engineer - AI SaaS Platform London (Hybrid - 2 days onsite) £90,000 - £110,000 + bonus + benefits A high-growth B2B generative AI scale-up based in central London is looking for a Senior Software Engineer to help build the next generation of its AI-powered SaaS platform. Working within a fast-moving product engineering team, you will play a key role in designing and delivering new features that enhance how customers interact with AI-driven software. This is a product-led environment where engineers collaborate closely with product managers and designers to ship high-impact features and continuously improve the platform. This role would suit an experienced engineer who enjoys building scalable systems, working across the full stack, and contributing to a product used by real customers. Key Responsibilities Design and deliver scalable features within a modern SaaS platform Build reliable backend services and customer-facing functionality Work closely with Product Managers and Designers to refine requirements and deliver solutions Contribute to system design, architecture discussions and engineering best practices Support the reliability and scalability of live production systems Required Experience Strong TypeScript / Node.js development experience Experience building full-stack applications (React / Next.js) Experience delivering cloud-based products in AWS, GCP or Azure Infrastructure knowledge such as Terraform, Docker, Kubernetes or CI/CD pipelines Experience working in startup or scale-up environments A product mindset with strong collaboration across engineering, product and design teams Nice to Have Experience using Python within product development Exposure to AI / LLM-driven products Experience with microservices architectures What’s on Offer £90,000 – £110,000 base salary Bonus scheme Hybrid working (2 days per week in London) Flexible working hours Private healthcare & pension Strong progression opportunities within a high-growth AI scale-up The opportunity to work on cutting-edge AI products used by global customers If you are a Senior Software Engineer looking to work on impactful AI-driven products in a fast-growing scale-up, apply now for more information

Salary: competitive depending upon experience + benefits

Where the job is based: hybrid, home based and working with Kerv Digital office/customer site visits as required) UK HQ, Seven House, 18 High Street, Longbridge, B3Q 1 2U

Who we are:

Dive into a world where technology meets innovation. At Kerv Digital, we’re not just another tech company. We’re the problem solvers, the magicians who transform complex challenges into seamless digital experiences. Utilising a powerful blend of Power Platform, DevSecOps, Data experiences, and Software Engineering, we create business solutions that truly resonate with our clients driving extreme value!

With our roots planted in Birmingham and branches spreading across the globe from London to Bangalore, we’re a proud member of the Kerv Group - a dynamic £112m revenue technology consultancy leader with a dedicated team of over 700 professionals, partnering with 800+ sector leaders.

People come first always we are incredibly proud of our unparalleled work culture. Not just words on paper, we wear our “Great Place to Work” certifications from the UK and India like badges of honour. Dive into an ocean of opportunities in an atmosphere that celebrates collaboration. Sharpen your prowess with a global multi-discipline team and be guided by the industry’s most forward-thinking architects.

Job Description:

We are seeking a highly skilled Test Engineer who is not only a skilled and competent automation tester, but also a skilled and competent manual tester to join our growing team to ensure the quality and reliability of the projects we deliver to our clients.

You will bring years of experience, understanding and practical application in all levels and types of testing.

You will be responsible for automated testing of Microsoft Dynamics & Power Platform solutions within our projects, as well as writing and executing manual test cases where required too. You will be involved in the maintenance and evolution of our frameworks and automation test suites, applying best practice standards to all you do. Automation could be at any application and integration layer and your skills need to be adaptable to select the most appropriate and efficient way to test.

We have seen an increase in the number of solutions and projects with an AI capability, so knowledge and exposure to the capabilities of how it can be used to benefit testing and automated testing as well as how to carry out testing of AI solutions and the ability to integrate that into an automation capability, is highly desirable

Key Responsibilities:

* Maintenance and continuous improvement of our test automation frameworks

* Develop and execute automated testing of Microsoft Dynamics & Power Platform solutions to identify and document defects

* Willing and able to carry out manual test case creation and execution as required

* Conduct API testing to ensure seamless integration and functionality

* Manual and automated accessibility testing

* Collaborate with developers and business analysts to understand requirements and design test cases

* Report and track defects, and work with the development team to resolve issues

* Participate in test planning, estimation, and risk analysis activities

* Contribute to the continuous improvement of automated testing processes and methodologies

Required Experience:

* Minimum of 3 years’ experience in both manual and automated testing at all levels

* ISTQB Certification (Foundation or Advanced)

* Manual and automated testing of Microsoft Dynamics and Power Platform solutions

* More than the ability to create an automation script, you must have understanding and practical experience of designing and creating automation frameworks to ensure they are secure, structured, highly performant and follow best practice industry standards

* Familiar with test and bug management tools and processes, ideally Azure Dev Ops (ADO)

* Hands-on experience with API testing

* Experience with test automation frameworks design, implementation and maintenance

* Familiarity with Scrum methodology and how testing and test automation activities fit in

* Ability to develop automated functional tests, which exercise the UI, API and DB layers and the ability to identify when and why to use each of them singularly or combined

* Creation of clear, meaningful Test Result Reports

* Highly delivery focused and engaging effectively with all types of team members to drive projects forwards

Technological Capabilities:

Candidates are expected to have practical experience of using all of the following;

• Playwright

• JavaScript / TypeScript

• Postman / REST Client / Axios

• Cucumber

• Accessibility Automation using Axe or similar

• Azure DevOps pipeline – CI / CD

• GitHub Actions / GitHub commands

• YAML Scripting - Defining Pipelines

• PowerShell Script - Deployment Tasks

• Azure Key Vault

• Strong understanding of software testing principles and methodologies

• Strong understanding and practical application of principles of test automation and automation strategies and approaches

• Proficiency in writing and executing manual test cases and test scripts

• Ability to perform API testing and validate data integrity

• Knowledge of test automation tools and frameworks

• Strong communication and collaboration abilities

• Attention to detail and a commitment to quality

• Analytical and proactive in their approach to testing and problem solving

• Experienced at carrying out testing activities in Scrum methodology and contributing in all ceremonies (Planning, Stand Ups, demo and retros)

• Ability to drive testing processes starting from planning phase to test execution, bug fixing and support

• Knowledge of test management and bug-tracking tools

• Capable of engaging at all levels with customers

• Test planning and estimation

We’re also looking for people that fit how we work, which is something like;

• happiest working under their own direction and initiative, but fully supported when needed

• willing and happy to do manual and automated testing – our projects require the ability to be adaptable and work as a team to achieve the goals

• attention to detail, we want you to obsess about the little things!

• ability to work effectively with remote teams with geographical and time zone differences

• ability to work flexibly to deliver on time to tight timescales

What we can do for you:

We’re a transparent, honest and fiercely equal employer that believes completely in providing the best possible work experience for our employees:

Real Flexibility– we’re a family first organisation, and if the work gets done, you can work when and wherever you want. A healthy approach for most of our teams seems to be splitting three ways between home, customer sites and the office.

Awesome Environment– all of our employees will tell you that we foster an easy going environment, are experts at what we do and care deeply about what we work on, and the company was started specifically to find a way for people to take more enjoyment from their work.

Interesting Work– these days most of our customers are household names and many of our projects have an important impact on the world around us. The kind of things we do regularly include working with not-for-profits to transform how they leverage technology, working with public bodies to shape digital services and working with top tier private entities to bring genuinely new and meaningful products and services to market.

Great Benefits– all the usual suspects and then some. Some highlights include our choose-your-own tech approach to end-user devices, well stocked cupboards with tasty goodies (we’re a food first company too), excellent professional development support including frequent in-house training for tech. you can’t get trained on anywhere else and private healthcare. Full disclosure; some benefits can only be provided after probation.

Recognition & Growth– Recognized as a ‘Great Place to Work’ in both the UK and India, our commitment to excellence goes beyond our products and services. Our culture is a testament to the dedicated technologists who work tirelessly to drive our vision forward. Being a part of Kerv Digital means embracing a culture of innovation, collaboration, and mutual respect. Our teams in the UK and India thrive in an atmosphere that promotes continuous learning and growth

Don’t take our word for it though, check out our impartial Glass Door reviews

More on equality:

At Kerv, we’re building something special and we’re building it to last. We want everybody to feel valued, included and love working together. With an uncompromising pursuit of amazing employee experience, we always strive to do the right thing. We believe and will relentlessly promote and support the power of diversity, equality and belonging, through collaboration and creating exceptional solutions together

Cardiff (Hybrid / Flexible Working) Up to £55,000 + bonus + benefits CPS Group are working with a financial technology company who are looking for a Senior Software Engineer with strong React experience to join their engineering team. This is an opportunity to work on modern digital lending platforms, building scalable software used by financial organisations across Europe. You'll be joining a collaborative engineering environment where developers are encouraged to challenge ideas, improve products and build new solutions from the ground up. As a Senior Software Engineer, you will play a key role in designing and developing modern applications within an Agile engineering team. You'll contribute to both new product development and enhancement of existing platforms, helping deliver high-quality software solutions. This role would particularly suit someone with strong React / TypeScript experience who enjoys working across the stack and contributing to engineering standards and best practices. Key Responsibilities Develop high-quality software aligned with product and user requirements Build and maintain modern front-end applications using React and TypeScript Work closely with Product Owners and engineers to define and deliver new features Develop and integrate APIs and backend services where required Participate in Agile ceremonies and collaborative planning Contribute to automated testing and CI/CD pipelines Support feature deployment and end-to-end delivery Mentor junior engineers and promote strong engineering practices Required Skills & Experience Strong experience with React and TypeScript Experience building or integrating with REST APIs Solid understanding of Git-based version control workflows Experience with automated testing (unit/integration) Knowledge of SQL databases such as PostgreSQL or Oracle Experience with CI/CD tools (e.g. Jenkins or similar) Strong problem-solving skills and ability to work collaboratively in Agile teams Excellent communication skills Desirable Experience Java and Spring Boot backend development Cloud platforms such as AWS, Azure or GCP Containerisation tools such as Docker Frontend testing tools (WDIO, Selenium, etc.) Financial services or fintech experience Experience using AI tools within development workflows Contact: Zach Bennett - CPS Group By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed)

C++ Engineer Certain Advantage are hiring for a C++ Engineer based in London. This role is on an initial contract till the end of the year and is hybrid. The company We’re working with an organisation that operates globally, helping power homes, transport, and industries with the energy they depend on every day. The role: Implement solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange Implement trading algorithms based on requirements provided by traders and quants Acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation Continuously improve the stability, reliability, and performance of the trading engine Enhance monitoring and observability in collaboration with the Trading Operations team The individual: C++ software development experience within the financial industry Solid understanding of parallel, asynchronous, and multithreaded programming to build distributed systems Good knowledge of algorithms and data structures Understanding of trading lifecycle, including order capture & execution, allocation workflow, settlement, and compliance requirements Must have strong technical skills in scripting, Python, C#, SQL or other programming languages Proactive system monitoring and troubleshooting, owning reliability improvements and ensuring their successful delivery Does this sound like your next career move? Apply today. Working with Certain Advantage We go the extra mile to find the best people for the job. If you’re hunting for a role where you can make an impact and grow your career, we’ll work with you to find it. We work with businesses across the UK to find the best people in Finance, Marketing, IT and Engineering. If this job isn’t for you, head to (url removed) and register for job alerts and career guidance tips

Data Engineer

Salary: £40 - 72K + Benefits
Location: London or Manchester (aligned to office for client on-site requirements)
Working Pattern: Hybrid / On-site depending on client needs
Security Clearance: SC Clearance required

You will join a people-focused digital consultancy supporting data-driven services across the UK public sector. The organisation values collaboration, inclusion, and work-life balance, and actively supports continuous learning and professional development through access to training, modern engineering tools, and supportive multidisciplinary teams.

The consultancy works closely with government departments and public sector organisations to design, build, and operate secure, scalable data platforms that enable advanced analytics, data science, and machine learning. Diversity and inclusion are core values, and hiring decisions are based on skills, experience, and potential. Empowering individuals and building strong teams are central to delivering meaningful outcomes for clients and citizens.

This role is suited to Data Software Engineers with a strong technical foundation and an interest in data engineering, data science, and machine learning. You will work within agile, multidisciplinary teams alongside data scientists, platform engineers, and stakeholders to build robust data processing systems in secure environments.

Role Responsibilities

Design, build, and maintain scalable data processing and integration systems to support data science and analytics workloads.

Develop high-quality, well-tested software using a Test-Driven Development (TDD) approach.

Collaborate closely with data scientists to enable effective use of data for analytics and machine learning.

Build and operate cloud-based solutions, with a strong focus on AWS services.

Work with messaging, streaming, or data flow technologies to support real-time and batch data processing.

Contribute to infrastructure and platform automation using Infrastructure as Code.

Participate in agile ceremonies, technical design discussions, and code reviews.

Ensure solutions meet security, performance, and reliability requirements within public sector environments.

What You Will Bring to the Team

A strong interest in data, particularly data engineering, data science, or machine learning.

A solid technical background, with experience in Java, Python, TypeScript, or similar languages.

Experience developing software using TDD or a strong willingness to adopt TDD practices.

Strong problem-solving skills and the ability to work collaboratively within multidisciplinary teams.

Good communication skills, with the ability to explain technical concepts to both technical and non-technical stakeholders.

A proactive mindset with attention to detail and a commitment to quality.

Desirable Skills and Experience

Experience working with cloud platforms, ideally AWS.

A strong Linux background.

Experience with data integration and messaging technologies such as Apache NiFi, Apache Kafka, RabbitMQ, or similar tools.

Experience using Infrastructure as Code tools such as Terraform or CloudFormation.

Previous experience working in a consultancy or public sector delivery environment.

Familiarity with secure or regulated environments.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

£Up To 45K GBP Sign On Bonus Hybrid WORKING Location: Newcastle Upon Tyne, North East - United Kingdom Type: Permanent DevOps Engineer - Newcastle Upon Tyne (Hybrid) Location: Newcastle Upon Tyne Security Clearance: Must meet eligibility for SC (minimum 5 years UK address history) Working Pattern: Hybrid, with onsite presence required About the Role We are looking for an experienced DevOps Engineer to join our dynamic Advanced Technology Centre, where you will help deliver high-quality technology solutions to both public and private sector clients. You’ll work in an environment that values innovation, collaboration, continuous learning, and technical excellence. This is a fantastic opportunity for someone who wants to solve real-world problems, work with modern cloud and automation technologies, and grow within a global organisation known for its diversity, culture, and cutting-edge projects. What You’ll Be Doing Work within a dedicated DevOps team to provide environments and tooling to support development and testing. Automate serverless integrations using APIs to streamline communication between systems. Configure and manage key DevOps tools such as GitLab, Jenkins, SmartBear, SonarCube, and performance/security testing tools. Build automated pipelines that support Continuous Integration and Continuous Testing. Implement Infrastructure as Code using tools such as CloudFormation, AWS CDK, Terraform, and Ansible. Set up monitoring and alerting solutions using platforms like CloudWatch, AppDynamics, Kibana, Splunk, or Prometheus. Work with RESTful APIs to integrate automation within pipelines and scripts. Support Linux environment configuration and administration. Write scripts using languages such as Python, Node.js, TypeScript, PowerShell, or Bash. Skills & Experience Required Strong, hands-on experience in CI/CD tools and practices. Knowledge of Infrastructure as Code tools such as CloudFormation, AWS CDK, and Terraform. Experience with automated testing and Quality Assurance tooling. Familiarity with cloud technologies (public or private) and virtualisation. Understanding of RESTful API usage within DevOps processes. Experience working in Agile or Lean development environments. Strong Linux administration skills. Proficiency in at least one scripting language (e.g., Python, Bash, PowerShell, Node.js, TypeScript). Desirable Experience Experience introducing DevOps practices to new teams or projects. Background in defining DevOps roadmaps for enterprise environments. Experience contributing to technical architecture for large-scale systems. Understanding of virtual network configuration or performance testing. What’s in It for You Competitive salary 25 days’ annual leave Private medical insurance 3 additional paid days each year for charitable work Opportunities to work with the latest technologies and global experts A supportive environment that encourages growth, creativity, and innovation Flexibility and mobility to work onsite with clients when needed About the Company You’ll join a global, industry-leading professional services organisation known for its innovation, diverse workforce, and commitment to delivering value across more than 40 industries. With a vast international network and a strong culture of inclusion, the company offers endless opportunities to advance your career while making a meaningful impact. Reference: AMC/JWA/DOENEW Postcode: NE1 #jawa TPBN1_UKTJ

Full Stack Developer – Blackburn - Hybrid working
Full Stack, Developer, JavaScript, TypeScript, React, Blackburn, Lancashire, North West

This advanced solutions provider requires a driven and self-motivated Full Stack Developer to join their busy technical team and motivate those around them. They are based in Blackburn and are operating a hybrid working model. The key to this role is leading the design and development of scalable web applications and platforms.

The Full Stack Developer will be responsible for:

Defining architecture and development standards by building high-performing, and maintainable code bases
Improving deployment pipelines, engineering practices and CI/CD workflows
Collaborating with product, leadership and marketing teams
Mentoring junior developers and providing code reviews
Overseeing integrations with APIs and driving performance optimisation
The following skills and experience are required:

Strong full stack web development experience
Strong experience with JavaScript, TypeScript and modern frameworks (React)
Experience providing scalable front-end architectures
Experience with Git workflows and CI/CD pipelines
The company have an excellent reputation within their sector. They really look after their employees by offering structured training, the opportunity to develop your technical knowledge and a clearly defined career path. On top of this, they offer excellent remuneration including an incentive scheme to truly recognise and reward their staff.

If you have not heard back from us within 5 working days, please assume that your application has been unsuccessful on this occasion. Your profile may be considered for other suitable vacancies that arise within the next 12 weeks.

Erin Associates welcomes applications from people of all ethnicities, genders, sexual orientations, and disabilities. Please inform us if you require any reasonable adjustments at any stage of the application process. Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy

Senior .Net Developer | Full Stack Engineer - Build the Future of Data Lineage & AI

London (Hybrid) | High -I mpact SaaS Engineering Role

C#, ASP.Net Core, TypeScript, React, Computer Science

Company Size: Approx. 60

Salary Range : £75k-£95k + equity

Spectrum Recruitment is partnered with a fast-growing, venture-backed SaaS company helping organisations understand and control complex data flows. Their platform enables enterprises to model, visualise, and manage data lineage, bringing clarity to some of the most challenging problems in modern data environments.

Why are they hiring?

Product Demand | Scale | Increasing team capabilities

As demand for the product increases and market interest builds the team needs greater experience and capabilities for scale. The current team is primarily made up of very clever graduates from ICL led by an experienced Head of Tech. They are looking for Developers to help the team evolve, add rigor and depth of knowledge to take the team and company to the next level.

Why This Role Stands Out

Work on genuinely complex engineering problems involving data modelling, visualisation, and emerging AI capabilities.

Own meaningful product features in a small, highly skilled engineering team.

Use a modern technology stack with freedom to innovate and influence technical direction.

Join a collaborative culture with R&D time, knowledge sharing, and hackathons.

Technology

C#, .NET Core, ASP.NET Core, TypeScript, React, cloud-hosted SaaS architecture, and exposure to AI-assisted development and data visualisation.

Who This Would Suit

Established, Senior Engineers who enjoy solving complex problems, care about clean architecture and UX, and want a role where their work has visible impact on both product and customers.

A degree in Computer Science or Software Engineering is a must.

Environment & Culture

Hybrid working (usually two days per week in a central London office) alongside a collaborative and ambitious engineering team. A friendly, sociable culture where people genuinely enjoy working together to solve complex challenges and have fun while doing it. You’ll also have clear opportunities to learn, develop, and influence the future direction of the technology and team.

Interested?

If you’re an experienced developer looking for a technically interesting role where your work genuinely matters, this is worth a conversation.

Hit apply or contact for more info.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

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Senior .Net Developer | Full Stack Engineer - Build the Future of Data Lineage & AI London (Hybrid) | High‑Impact SaaS Engineering Role C#, ASP.Net Core, TypeScript, React, Computer Science Company Size: Approx. 60 Salary Range: £75k-£95k + equitySpectrum Recruitment is partnered with a fast-growing, venture-backed SaaS company helping organisations understand and control complex data flows. Their platform enables enterprises to model, visualise, and manage data lineage, bringing clarity to some of the most challenging problems in modern data environments. Why are they hiring? Product Demand | Scale | Increasing team capabilities As demand for the product increases and market interest builds the team needs greater experience and capabilities for scale. The current team is primarily made up of very clever graduates from ICL led by an experienced Head of Tech. They are looking for Developers to help the team evolve, add rigor and depth of knowledge to take the team and company to the next level. Why This Role Stands Out Work on genuinely complex engineering problems involving data modelling, visualisation, and emerging AI capabilities. Own meaningful product features in a small, highly skilled engineering team. Use a modern technology stack with freedom to innovate and influence technical direction. Join a collaborative culture with R&D time, knowledge sharing, and hackathons.Technology C#, .NET Core, ASP.NET Core, TypeScript, React, cloud-hosted SaaS architecture, and exposure to AI-assisted development and data visualisation. Who This Would Suit Established, Senior Engineers who enjoy solving complex problems, care about clean architecture and UX, and want a role where their work has visible impact on both product and customers. A degree in Computer Science or Software Engineering is a must. Environment & Culture Hybrid working (usually two days per week in a central London office) alongside a collaborative and ambitious engineering team. A friendly, sociable culture where people genuinely enjoy working together to solve complex challenges and have fun while doing it. You'll also have clear opportunities to learn, develop, and influence the future direction of the technology and team. Interested? If you're an experienced developer looking for a technically interesting role where your work genuinely matters, this is worth a conversation. Hit apply or contact for more info. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy

Machine Learning Engineer (PyTorch LLM) London onsite to £110k

Do you have expertise with Machine Learning in production?

You could be progressing your career at a London based tech start-up with £5 million in recent pre-seed funding, in an impactful role that you’ll shape. The product is an AI agentic based platform that writes production grade code.

What’s in it for you:

Salary to £110k

Equity / stack options

30 days holiday (+ Bank Holidays)

Daily lunch, monthly breakfasts

Dog friendly office

Pension

Monthly socials

Impactful role that you can shape and influence

Your role:

As a Machine Learning Engineer you’ll take open-source LLMs (code and general models) and turn them into high-performance software engineer agents using supervised fine tuning and large scale reinforcement learning. This isn’t prompt engineering. You’ll design and run serious training experiments across multi-node GPU clusters, build RL loops where models write code and get rewarded (or penalised) by real test outcomes and push long-context and MoE style architectures to their limits.

You’ll work hands-on across the full stack: custom PyTorch dataloaders, distributed training (DDP/FSDP), experiment tracking, debugging NCCL issues at 2am, and squeezing performance out of multi-GPU jobs. You’ll help design opinionated reward functions that reflect what great engineering actually looks like, not just benchmark scores.

You’ll extend benchmark suites, test models on real world repositories, analyse failure modes and feed insights back into data and training strategy. Collaborating with infrastructure, product and research teams you’ll contribute to decisions about what to train next and how to measure results.

Location / WFH:

You’ll be based in the London, dog friendly office on a fulltime basis, with daily catered lunch, working hours 0900-1700 (with no expectation to do more).

About you:

You have strong experience with training deep learning models in production

You have an indepth knowledge of PyTorch including hands-on experience with torch.distributed (DDP/FSDP-style training, distributed data loading, gradient scaling, etc.)

You have experience of training large sequence models or LLMs at scale

You have a software engineering background with Python, also familiar with TypeScript and / or Golang

You have distributed systems / training ops experience including practical experience running multi-node jobs on GPU clusters (Slurm, Kubernetes, or managed cloud equivalents) and are familiar with GPU performance tuning: memory usage, mixed precision, throughput vs. latency tradeoffs

You have experience within a reinforcement learning environment

You’re collaborative with great communication skills

You are degree educated to BSc / MSc in a relevant discipline

Apply now or call to find out more about this Machine Learning Engineer opportunity.

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Join an AI-Focused Software Team Building Real Solutions

Ready to move beyond basic commercial coding into cutting-edge AI application development? This is your chance to work with Python and modern technologies whilst building software that makes a real impact.

You’ll join an established software engineering team of 14 plus a hands-on CTO at a successful AI-focused product company in Leeds. With established clients and stable revenue streams, you’ll help develop new AI solutions and take the platform forward.

What You’ll Be Doing

You’ll be developing AI software applications primarily using Python, working alongside experienced engineers who will support your growth into this exciting field.

Our tech stack includes:

• Python
• TypeScript (React.js)
• Azure cloud services

What We’re Looking For

We need someone with roughly 1-2 years (or more) post-graduation commercial experience in software development using modern programming languages.

You might have experience with:

• Python
• Java
• .NET / C#
• JavaScript / TypeScript
• Similar modern languages

Important: Specific Python experience isn’t required. We believe good software engineers can adapt to any language with proper support and time. Our last two hires came from primarily C# (.NET) backgrounds.

The Details

Location: Leeds, Yorkshire. We operate a 2-3 days per week in the office policy. Central Leeds city office in a lovely, open plan shared tech hub space.

Salary: Up to £45K basic (£35K - £45K, depending on experience level) + training & development budget + bonus scheme.

Ready to Take the Next Step?

If you’re excited about moving into AI development with a supportive team and proven company, we’d love to hear from you. Hit apply or get in touch for a conversation about your future in AI software development.

Join a thriving AI tech start-up where you’ll build cutting-edge software solutions alongside industry veterans with over 20 years’ experience. Skip the corporate red tape and work on real AI applications that customers actually use.

What makes this opportunity special

You’ll join an established team of 14 engineers working in agile squads with a hands-on CTO. We have stable revenue streams, established clients, and several in-demand AI apps in production.

While other companies are cutting back, we’re bucking the trend with plenty of new feature development work ahead.

What you’ll be doing

• Develop existing and new AI application software using Python
• Work in agile squads on real-world AI solutions
• Build features that directly impact established clients
• Collaborate with experienced software engineers and learn from industry veterans

Our tech stack

• Python (primary language)
• TypeScript and React.js
• Azure cloud services
• Modern CI/CD and development tooling

What we’re looking for

We need roughly 2 years or more post-graduation commercial experience in software development with a modern programming language. Python preferred.

Location and working arrangements

Central Leeds, Yorkshire. 2-3 days per week in the office policy. Nice, open plan shared office space in a tech hub.

Package

£45K basic (£40K - £50K basic range; £50K basic would require more experience and be a “senior” role) + Training & development budget + Bonus scheme + Benefits.

Ready to take your Python skills to the next level?

If you’re ready to work on real AI applications with exceptional flexibility around technology and working practices, we’d love to hear from you. Hit apply or get in touch for a conversation.

Role Overview

We are seeking a Senior Full Stack TypeScript Engineer to design, build, and operate mission-critical insurance applications.

Key ResponsibilitiesFull Stack Development

• Design, develop, and maintain full-stack applications using TypeScript.
• Build frontend applications using Next.js and backend services using Nest.js.
• Develop scalable RESTful APIs and microservices.

Cloud & Infrastructure

• Deploy and manage applications on AWS cloud infrastructure.
• Work with AWS ECS for containerized application deployment.
• Manage infrastructure using Terraform (Infrastructure as Code).

Data & Storage

• Design and manage SQL and NoSQL database solutions.
• Work with PostgreSQL (AWS Aurora) and DynamoDB.
• Implement efficient data models and database performance optimizations.
• Experience with TypeORM is a plus.

Event Driven Architecture

• Build event-driven services using AWS EventBridge.
• Implement notification systems using AWS SNS.

CI/CD & DevOps

• Implement CI/CD pipelines using GitHub Actions.
• Ensure automated build, testing, and deployment workflows.
• Support DevOps practices for reliable application delivery.

Required Skills & ExperienceCore Technologies

• Strong experience with TypeScript and JavaScript.
• Hands-on experience with:
• Next.js (Frontend)
• Nest.js (Backend)
• Experience building full-stack applications and APIs.

Cloud & Infrastructure

• Strong experience with AWS cloud services.
• Hands-on experience with:
• AWS ECS
• Terraform
• AWS EventBridge
• AWS SNS

Applied AI / Automation Engineer

Location: London (Hybrid)

Salary : £70k + (DOE)

The Role

A London-based financial services firm operating within the hedge fund and asset management space is seeking an Applied AI / Automation Engineer to join its Data Science function.

This role will focus on designing and building an intelligent reporting and automation platform to support fund operations and administration teams. The successful candidate will work closely with both technical and operational stakeholders to deliver measurable efficiency gains and scalable automation solutions.

The overall objective is to modernise reporting production and reconciliation processes through the application of modern data engineering practices, AI-enabled automation, and agent-based workflows.

This is a hands-on engineering role focused on building reliable, production-grade systems within a complex financial environment.

Key Responsibilities

Lead the design and development of an end-to-end automated reporting platform .

Build intelligent workflows to automate data ingestion, validation, reconciliation, and reporting processes , replacing manual operational workflows with scalable, controlled systems.

Design exception-handling and human-in-the-loop mechanisms where full automation is not appropriate.

Ensure the platform delivers high levels of accuracy, auditability, and operational resilience .

Work closely with product and operations stakeholders to translate operational complexity into structured technical solutions.

Develop the system as a maintainable internal product , rather than a collection of standalone scripts or tools.

Contribute to the broader evolution of AI-driven operational capabilities across the business.

Experience & Skills

Strong automation engineering capability with the ability to apply AI in real operational environments.

Strong hands-on experience with Python and SQL (3+ years)

Experience designing and implementing data pipelines and automation systems.

Experience integrating systems via APIs and structured data feeds.

Experience building reliable, monitored, and maintainable production systems.

Familiarity with version control (Git) and CI/CD pipelines.

Experience implementing testing frameworks to ensure system reliability and accuracy.

Strong systems thinking with the ability to design end-to-end technical solutions.

Strong communication skills and ability to work cross-functionally with operations teams.

Desirable

Exposure to financial services workflows such as reconciliation, accounting, or operational controls .

Experience building systems in regulated or audit-sensitive environments .

Familiarity with workflow orchestration tools .

Experience turning internal automation into scalable internal products, including dashboards or tools (e.g. TypeScript, React, Next.js or similar ).

Opportunity

This is an opportunity to design and build an AI-driven operational platform from the ground up within a sophisticated financial environment.

Through the application of automation, AI agents, and modern data engineering, the role will help shape how AI augments and transforms operational workflows across the organisation.

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

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