Senior Software Engineer / Full Stack Developer (TypeScript Node React AWS) London / WFH to £95k

Are you a full stack technologist?

You could be progressing your career in a hands-on Senior Software Engineer role at a well established consumer facing financial services company that help people to manage debt, as they go through a technical transformation and scale-up following recent investment.

What’s in it for you:

• Salary to £95k
• Bonus
• 25 days holiday
• Pension
• Employee Assistance Programme
• Onsite gym and well-being champions
• X2 volunteering days per year
• Opportunity to make an impact as part of new team in a role you can shape

Your role:

As a Senior Software Engineer you will design and develop customer facing applications, working across the full stack with a leaning towards TypeScript, Node and AWS on the backend but also with exposure to React on the front end, ensuring high standards of quality, security, reliability and operability across the stack. You’ll also have exposure to mobile app development using React Native.

Location / WFH:

You’ll be based in fantastic new offices in London that offer a wide range of facilities including wellness rooms and onsite gym for three days a week with flexibility to work from home twice a week.

About you:

• You have advanced full stack development skills including TypeScript backends, microservices, APIs, React and also ideally React Native or Kotlin for mobile development
• You have a good understanding of distributed systems, RDBMS (Oracle) and data modelling trade-offs
• You have a good understanding of cloud native architecture and modern engineering practices such as CI/CD, Test Automation, monitoring and observability
• You have an interest in AI and agentic systems, ideally having used in a commercial setting
• You’re collaborative and pragmatic, comfortable working closely with Product Managers to explain technical aspects and trade-offs to shape delivery plans that balance speed, quality and risk

Apply now to find out more about this Senior Software Engineer / Full Stack Developer (TypeScript Node React AWS) opportunity.

About Us

SharkNinja is a global product design and technology company, with a diversified portfolio of 5-star rated lifestyle solutions that positively impact people’s lives in homes around the world. Powered by two trusted, global brands, Shark and Ninja, the company has a proven track record of bringing disruptive innovation to market and developing one consumer product after another has allowed SharkNinja to enter multiple product categories, driving significant growth and market share gains. Headquartered in Needham, Massachusetts with more than 4,100 associates, the company’s products are sold at key retailers, online and offline, and through distributors around the world.

About the Role

At SharkNinja, we create intelligent, connected products that delight consumers and disrupt categories. We’re growing our engineering teams across Firmware, Cloud, and Mobile App development. We are building systems that integrate hardware, software, and digital experiences using AI-driven processes to help accelerate design, coding, and testing.

Come help design and deliver the next generation of SharkNinja products from mobile applications that connect consumers to their devices, full-stack architectures that enable seamless experiences, and cross-platform solutions that bring intelligence directly to users’ fingertips. You’ll contribute to our existing SharkClean app platform while helping shape the future of a unified app ecosystem spanning all connected devices for SharkNinja. Together, we’re making our products feel smarter every day they’re in the home.

What You’ll Do

• Build cross-platform solutions using React Native to accelerate feature delivery across iOS and Android.

  • Collaborate with embedded, cloud, and hardware teams to deliver end-to-end connected product experiences.

  • Design and implement full-stack system architectures that integrate mobile apps with cloud services and connected devices.

  • Write, execute, and automate tests to ensure reliability, performance, and consumer-ready quality.

  • Debug and optimize mobile app performance for consumer-scale deployment across diverse device ecosystems.

  • Work closely with cross-functional development teams spanning the entire software stack from embedded to cloud.

What You’ll Bring

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• Strong experience in React Native development for iOS and Android development with deep understanding of Typescript.
• Proficiency with modern mobile development tools: VSCode, Xcode, Android Studio, Git, Gradle, CocoaPods, Swift Package Manager, etc.
• Experience working with cross-functional development teams across the software stack.
• Understanding of full-stack system architecture and mobile-to-cloud integration patterns.
• A passion for creating consumer-friendly, connected product experiences.
• Curiosity, adaptability, and a drive to be part of an A-Player engineering team.

Preferred Qualifications

• Rust for cross-platform modules, React Navigation, React Query state management, Protobuf APIs, Xcode/Android Studio build systems
• Prior work with connected devices, IoT ecosystems, or device-to-app connectivity.
• Knowledge of BLE (Bluetooth Low Energy) and WiFi connectivity protocols.
• Experience with Rust, C/C++, or other systems programming languages. Learn
• Background in robotics, consumer electronics, or smart home products.

Our Culture

At SharkNinja, we don’t just raise the bar—we push past it every single day.  Our Outrageously Extraordinary mindset drives us to tackle the impossible, push boundaries, and deliver results that others only dream of. If you thrive on breaking out of your swim lane, you’ll be right at home.

What We Offer

We offer competitive health insurance, retirement plans, paid time off, employee stock purchase options, wellness programs, SharkNinja product discounts, and more. We empower your personal and professional growth with high impact Learning Programs featuring bold voices redefining what’s possible. When you join, you’re not just part of a company—you’re part of an outrageously extraordinary community. Together, we won’t just launch products—we’ll disrupt entire markets.

At SharkNinja, Diversity, Equity, and Inclusion are vital to our global success. Valuing each unique voice and blending all of our diverse skills strengthens SharkNinja’s innovation every day. We support ALL associates in bringing their authentic selves to work, making an impact, and having the opportunity for career acceleration. With help from our leadership, associates, and our community, we aim to have equity be a key component of the SharkNinja DNA.

Learn more about us:  
Life At SharkNinja  
Outrageously Extraordinary

SharkNinja Candidate Privacy Notice

• For candidates based in all regions, please refer to this Candidate Privacy Notice.
• For candidates based in China, please refer to this Candidate Privacy Notice.
• For candidates based in Vietnam, please refer to this Candidate Privacy Notice.

We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, disability, or any other class protected by legislation, and local law. SharkNinja will consider reasonable accommodations consistent with legislation, and local law. If you require a reasonable accommodation to participate in the job application or interview process, please contact SharkNinja People & Culture at accommodations@sharkninja.com

Full Stack Developer (Next.js/React) - Build Greenfield Platforms
UK-Based | Hybrid | £70,000-£90,000

Overview:
I’m working with a global brand that’s going through a major digital transformation and investing heavily in modern, cloud-native technology. They’re looking for a Full Stack Developer (Next.js/React) to help build greenfield, high-performance platforms used by globally recognised clients. This is a chance to work on scalable, modern systems and genuinely influence both the technical direction and engineering culture.

Responsibilities:

• Building production-grade applications using Next.js, React & TypeScript
• Designing and developing APIs (REST/GraphQL)
• Working across the full stack - Front End, Back End, and cloud
• Owning features end-to-end (design build deploy)
• Contributing to architecture and best practices
• Collaborating closely with product and engineering teams

What they’re looking for:

• 5+ years’ software development experience
• Strong Next.js/React/TypeScript background
• Experience building scalable web applications
• Solid understanding of SSR, SSG & Front End performance
• API development experience (REST or GraphQL)
• Cloud exposure (AWS preferred) + Docker
• Strong fundamentals (HTTP, DNS, etc.)

Bonus points for:

• Go or C# Back End experience
• Microservices/DevOps/CI/CD exposure
• Terraform/infrastructure as code
• Auth systems (OAuth, JWT, SSO)

If you’re interested (or know someone who might be), drop me a message.

Senior Software Engineer / Front End Developer (TypeScript React) London / WFH to £120k

Are you a technologist with start-up experience looking for your next opportunity?

You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform.

What’s in it for you:

Salary to £120k

Equity

Impactful role with excellent career progression as the company scales

Hybrid working

Pension

Your role:

As a Senior Software Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on building a new front end with TypeScript and React but also with exposure to the Python backend.

You’ll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you’ll be able to contribute to the product vision and strategy playing a pivotal role in the company’s success.

Location / WFH:

You’ll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.

About you:

You have strong TypeScript and React skills

You have a good understanding of system design and scalability

You have some backend Python coding skills, ideally including FastAPI

You’re familiar with other technology in the stack including: AWS, Terraform, Docker, PostgreSQL, DynamoDB, CI/CD, GitHub actions, Blacksmith runners

You’re collaborative and pragmatic with great communication skills, keen to input into technical discussion and decision making

Apply now to find out more about this Senior Software Engineer / Front End Developer (TypeScript React) opportunity.

TPBN1_UKTJ

Digital Twin / 3D Visualization Developer | £800 p/d inside IR35

We’re looking for a Digital Twin Developer to help develop immersive, interactive 3D digital twin experiences used across web and mobile applications. You’ll work with modern technologies including Python, JavaScript, and TypeScript.

What you’ll do:

Build immersive 3D digital twin models that power engaging experiences across web and mobile applications
Build interactive virtual tour features using Python, JavaScript, and TypeScript
Optimise models for fast rendering and smooth performance across devices
Ensure accuracy, scalability, and consistency across the digital twin pipelines

Nice to have:

Building agents / multi-agent systems
Developing Retrieval‑Augmented Generation (RAG) systems
Agentic frameworks: LangGraph / LangChain
Deployed LLMs at enterprise scale

Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law.

Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers.

By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website

About Carebit

Carebit is a young, design-led healthcare technology company helping over 2,000 private doctors across the UK run their practices more effectively and efficiently, with our web and mobile platform, and hundreds of thousands of their patients. For too long, medical software has been clunky, user-hostile and complicated, and we are changing that. Several customers have independently described us as the Apple of practice management software .

We are a bootstrapped, profitable and remote-first company of 25 people with 6 Full Stack Engineers including the company s founder, Dominic. Having been remote from day one, we fully believe in its benefits. We do have a lovely office in London by the river for in-person collaboration when required, but this is not mandatory as we know some like in-person working and some prefer fully remote.

About You

We re looking for a Senior Support Engineer who thrives on solving real customer problems through hands-on technical work. You ll sit at the intersection of our support, engineering, and data migration teams a true technical generalist who enjoys variety.

This is a great fit for a strong Developer who wants to take full ownership of debugging, fixing, and enhancing real-world product issues that impact doctors and patients.

You ll work on:

• Investigating and resolving bugs or issues raised by our team of Customer Support Specialists.
• Making small-to-medium feature tweaks (e.g. modifying exports, adjusting logic).
• Writing Ruby scripts and jobs for post-migration data cleanup or updates.
• Collaborating with Developers and support staff to triage, prioritise, and resolve issues.
• Delivering small fixes to production regularly and reliably.

What we are looking for:

• Strong experience with Ruby on Rails (Rails 7, Ruby 3.4).
• Proficiency with React, TypeScript / JavaScript, and PostgreSQL.
• Comfort working in a Linux-based environment (AWS ECS, command line).
• Great debugging and troubleshooting skills you enjoy getting to the root of problems.
• Fluent, friendly communication especially with non-technical users.
• A proactive, independent mindset you get things done without handholding.
• You must be located within GMT / BST 3 time zones and available during UK working hours (typically 9am 5:30pm).

Nice to have:

• Sysadmin experience.
• Experience supporting SaaS products or working closely with support teams.

Why join Carebit

• Fully remote with flexible working, based around UK hours.
• Meaningful product used by thousands of doctors and patients every day.
• Calm, supportive, and highly autonomous culture.
• Direct involvement in product decisions and fixes that impact real people.
• Competitive salary.

Location: London
Type: Permanent
Working Pattern: 4xFlex, 37.5 hours per week

We are currently working with a client in the Aerospace & Defence sector who are expanding their London-based team and are looking to hire Software Engineers (Java/AWS) at mid to lead level.

This opportunity sits across a range of Defence, Cyber and Intelligence programmes, focused on developing secure, cloud-based solutions within mission-critical environments.

A key requirement for this position is the ability to obtain and maintain high-level security clearance. If you do not currently hold this, support will be provided throughout the application process.

The Role:

You will work under the guidance of a Software Engineering Lead or, at senior level, take on additional responsibility for technical delivery and supporting wider engineering activities. You may specialise in a particular area or work across multiple disciplines, with a strong focus on the Cyber domain.

Typical responsibilities include:

Conducting software development activities and contributing to technical delivery
Designing and developing tests to debug and validate software
Working with customer requirements to develop mission/business applications
Supporting the full software development lifecycle using appropriate tools, standards and processes
Analysing system capabilities and resolving technical queries
Correcting program errors and maintaining documentation
Preparing operating instructions and technical documentation
Championing automation through Infrastructure as Code (IaC), CI/CD and test automation
Skills & Experience:

Strong proficiency in Java
Knowledge of additional languages such as Python, C++, JavaScript, TypeScript or React (desirable)
Experience developing software for cloud environments, particularly AWS
Understanding of microservices and/or serverless architectures
Familiarity with CI/CD pipelines for cloud deployments
Awareness of challenges when migrating on-premise workloads to the cloud
Knowledge of AWS services such as EC2, EKS, Fargate, IAM, S3 and Lambda
Experience working in Linux environments
Understanding of unit testing and mocking frameworks (e.g. JUnit 5)
Experience with Git version control
Knowledge of Agile development methodologies (SCRUM)
Understanding of relational databases (e.g. Oracle) and/or MongoDB
Familiarity with GitLab CI/CD pipelines
Experience using Atlassian tools (Bitbucket, Jira, Confluence)
Understanding of Elasticsearch, Kibana and Hibernate
Desirable Certifications:

Oracle Java Certification / AWS Certification / ISTQB Certification / OSCP Certification / CCNA Certification

PLEASE NOTE: eDV clearance is required to start. The process can take up to 18 months

Omega is an employment agency specialising in opportunities at all levels within the Engineering, Manufacturing, Aerospace, Automotive, Electronics, Defence, Scientific, Energy & Renewables and Tech sectors

We're looking for a Full Stack Engineer who's excited to build secure, high-performance products used at scale. You'll work across Kotlin Back End services and React/TypeScript frontends, while helping shape modern CI/CD pipelines and internal AI tooling. What you'll be doing Build and scale Back End services using Kotlin & JVM frameworks Develop sleek, responsive UIs with React + TypeScript Own code from idea - production with CI/CD pipelines Contribute to cutting-edge agentic AI tooling for engineering teams Collaborate closely with engineers, product, and stakeholders Debug, optimise, and continuously improve live systems Essential experience Experience with Kotlin + TypeScript Solid hands-on experience with React Understanding of CI/CD (GitHub Actions, Jenkins, GitLab CI) Strong communication skills - you can explain tech clearly Curiosity, ownership, and a Cloud experience (AWS, GCP, Azure) Docker/Kubernetes knowledge Interest in secure coding & data privacy Exposure to fintech/regulated environments \*Rates depend on experience and client requirements

Senior Full Stack JavaScript Developer

Salary: £80,000 - £88,000 pa (depending on experience) plus benefits, perks and healthcare options

Location: Hybrid/2 x days per week - Travel to London

Job Type: Permanent

Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC).

We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact!

Your Role:

* Provide technical leadership and mentorship to a team of developers, guiding them through collaboration, innovation and facilitation to ensure best practices and high-quality code.

* Design, develop, and maintain both Front End components of web and mobile applications using React, Angular, TypeScript, Bootstrap 5, HTML, CSS

* Apply Test Driven Development (TDD) practices using tools such as Karma to ensure robust and reliable code.

* Leverage AI-augmented development tools like GitHub Copilot to accelerate coding, improve consistency, and reduce boilerplate.

* Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems.

* Continuously improve our teams’ development processes, tools, and techniques to enhance productivity and product quality.

* Work closely with clients and internal teams to understand requirements, provide technical guidance, and deliver solutions that exceed expectations.

Your skills and experience

* Design, develop, and maintain both Front End and Back End components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js.

* Proven experience in full stack JavaScript development, with a strong focus on Node.js and Server Side development.

* Experience using AI-assisted development tools (eg GitHub Copilot) to enhance productivity and code quality.

* Experience of at least one leading Node framework (Express.js, Nest.js, Hapi.js)

* Expertise in at least one modern Front End framework (Nest.js, Remix.js).

* A track record in a lead or senior developer role, with experience of mentoring and guiding development teams.

* Proficiency in HTML5, CSS3, and JavaScript (ES6+).

Security Clearance Requirements:

• You must be eligible for Security Check (SC) clearance.
• Applicants must have resided continuously in the UK for the past 5 years.

If you’re ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you!

Technical Lead - Active SC, AWS, NodeJS, Java / Scala

Market rate

London / Remote (Must be UK Based)

My client is an International Consultancy who require a Technical Lead with Active Security Clearance (SC) and expertise across Typescript, NodeJS, AWS (Cloudwatch, Lambda, SQS, S3 etc), Terraform, PostgreSQL and Java / Scala to work closely with an end customer.
Key Requirements:

• Active Security Clearance (SC)
• Demonstrable experience as a Technical Lead, providing Technical Leadership, Coaching and Mentoring
• Technical skills - Typescript, NodeJS, AWS (Cloudwatch, Lambda, SQS, S3 etc), Terraform, PostgreSQL and Java / Scala
• Working knowledge of collaboration tooling (Jira / Slack /Teams / Figma)
• Involvement in Release preparation
• Excellent communication skills

Nice to have:

• Immediate availability
• Flexible approach towards hybrid working
• Open to convert to being a permanent employee after initial contract period

If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)

Senior Software Engineer (Backend) Series A eCommerce x Fintech Meaningful equity Buying clothes online still isn t a great experience. Sizing is inconsistent, returns are costly, and customers are often left guessing. Yet despite all the innovation in eCommerce, this problem remains largely unsolved. We re working with a high-growth, well-funded Series A startup that s changing that enabling *Try Before You Buy* experiences for leading fashion retailers. The product is live, gaining traction, and now entering a critical phase of growth, including expansion into the US. To support that, they re rebuilding and scaling key parts of their platform. This is where you come in. You ll join a small, experienced engineering team and work directly with the CTO on the systems that sit at the heart of the product. This isn t about maintaining legacy code or picking up tickets. It s about building, improving, and scaling a platform that directly impacts customer experience and revenue. The environment is backend-leaning, built around Node.js, TypeScript and MongoDB, with an API-first, event-driven approach. But more important than the stack is the mindset engineers here are trusted to take ownership, think in systems, and deliver end-to-end. You ll be given the space to focus, the autonomy to make decisions, and the responsibility to get things into production quickly and properly. What they re looking for is someone who has seen scale or at least understands what it takes to get there. Someone who has worked in a startup or high-growth environment, where ambiguity is normal and ownership isn t optional. You ll likely be strongest on the backend, comfortable designing and building production systems, and thoughtful about performance, trade-offs, and long-term maintainability. You don t need to know everything, but you do need to be curious, pragmatic, and capable of figuring things out. If you ve had exposure to eCommerce, payments, or marketplace platforms, that s helpful but not essential. What makes this opportunity stand out is timing. The team is still small, but not at zero. The product is live, but not finished. The business has funding, traction, and a clear direction but plenty left to build. There s a genuine opportunity here to shape both the platform and your own role as the team grows over the next months. And importantly, you ll be part of that journey in a meaningful way, with equity that reflects early-stage impact and upside. The package includes a salary up to £85,000, flexible holiday, hybrid working (one day in the office per week), and a range of additional benefits but the real value here is the chance to build something that matters, in a team where your contribution is visible from day one. If you re an engineer who enjoys building real products, solving meaningful problems, and working in an environment where ownership and impact matter more than process, this is worth a conversation. Apply or get in touch for a confidential discussion. EHS Partners Limited, Edison Hill Search & Edison Hill Scale are operating and advertising as an Employment Agency for permanent positions and as an Employment Business for interim / contract / temporary positions. EHS Partners Limited are an Equal Opportunities employer and we encourage applicants from all backgrounds. Please apply below at your earliest convenience.

Job Title:Solution Architect
Location: London
Salary/Rate: £495 - £525
Start Date: 04/05/2026
Job Type: Contract

Company Introduction A global property and casualty insurance provider headquartered in Boston, Massachusetts. Founded in 1912, it operates through a network of subsidiaries and affiliates, offering a wide range of personal and commercial insurance products, including auto, home, workers compensation, and specialty lines.

Job Responsibilities/Objectives
1.Lead and manage software development projects using Java, Python, Typescript, AWS, React JS, Angular, and other technologies.
2.Collaborate with cross-functional teams to define project scope, objectives, and deliverables
3.Create the high-level design (or solution architecture documents) for the business requirements
4.Proficient using architectural principles and patterns, variety of solution types, detailed design patterns, best practices, integration choices etc

Required Skills/Experience
1.Strong experience within the Insurance domain (London Market experience is highly desirable).
2.Proven expertise in software architecture, design, and hands-on development.
3.Strong technical background in .NET, Java, Python, TypeScript, AWS, React, and Angular.
4.Demonstrated experience managing full project life cycles from concept to delivery.

Desirable Skills/Experience
Although not essential, the following skills are desired by the client:
1.Experience with microservices architecture and event-driven design (eg, Kafka, messaging systems)
2.Knowledge of DevOps practices and CI/CD pipelines (eg, Jenkins, GitHub Actions, Azure DevOps)
3.Familiarity with containerization and orchestration tools (Docker, Kubernetes)
4.Exposure to cloud architecture best practices, particularly AWS Well-Architected Framework

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Location: London - 2/3 days on site
Duration: 04/05/2027
Rate- 506
MUST BE PAYE THROUGH UMBRELLA

Key Responsibilities:

• Lead and manage software development projects using Java, Python, Typescript, AWS, React JS, Angular, and other technologies.
• Collaborate with cross-functional teams to define project scope, objectives, and deliverables.
• Create the high-level design (or solution architecture documents) for the business requirements
• Produce several option papers and work with architecture community and forums to get the designs approved
• Proficient using architectural principles and patterns, variety of solution types, detailed design patterns, best practices, integration choices etc
• Design solutions reducing technical debt with futuristic solutions aligning to enterprise architecture and vision
• Aim to reuse the existing applications, services, and data, wherever possible
• Work with cross-functional teams to deliver the defined scope, objectives, and deliverables on technical grounds
• Facilitate communication between stakeholders, development teams, and other departments.
• Ensure adherence to software development lifecycle (SDLC) processes and best practices.
• Develop detailed project plans, including timelines, resource allocation, and risk management strategies.
• Monitor project progress, identify potential issues, and implement corrective actions as needed.
• Provide technical guidance and support to development teams.
• Prepare and present project status reports to stakeholders.
• Utilize tools such as ServiceNow, Confluence, and JIRA for project tracking and documentation.

Qualifications:

• Strong Insurance domain working experience, london market experience will be added advantage
• Strong technical experience in Architecture, Design and Development
• Strong technical background with expertise in .Net, Java, Python, Typescript, AWS, React JS, and Angular.
• Proven experience managing end-to-end project lifecycles.
• Exceptional leadership and team management skills.
• Excellent problem-solving and analytical abilities.
• Strong communication and interpersonal skills.

Skills:

• Software Architecture
• REST API Development
• Java, Python, Typescript, AWS, React JS, and Angular
• SDLC with Agile Methodologies, Scrum
• Issue Resolution
• ServiceNow, Confluence, JIRA
• Risk Management
• Project Management
• Team Leadership
• Stakeholder Communication
• Insurance Domain Experience

Mode of working: London- 3 days onsite
Type of Employment:Permanent

Interview Format: 1. Live coding+ 2 interview rounds.

The Senior Full Stack Developer Role

As a Senior Full Stack Developer, you will design and deliver end-to-end application solutions using cloud platforms such as Azure, AWS or GCP, alongside modern technologies including NoSQL databases, Python, React, TypeScript and DevOps tooling. You will work on cutting-edge projects, develop scalable applications and collaborate with cross-functional teams to deliver high-quality solutions.

Senior Full Stack Developer Key Responsibilities:

• Own the end-to-end architecture across front-end, back-end, APIs, data and system integrations.
• Define reference architectures, technology standards and design principles for development teams.
• Make strategic technical decisions balancing scalability, security, cost efficiency and delivery speed.
• Design and develop accessible, secure and scalable front-end applications using React and TypeScript.
• Establish standards for state management, authentication flows and UI/UX consistency.
• Architect back-end services using Node.js or Python, including REST APIs and event-driven patterns.
• Apply microservices principles, resiliency patterns and fault-tolerant design.
• Model and manage relational and NoSQL databases such as MongoDB and Postgres, including caching and data access strategies.
• Architect cloud-native solutions on AWS, Azure or GCP, incorporating CI/CD pipelines and Infrastructure as Code.
• Build for high availability, disaster recovery, cost optimisation and embedded observability.
• Apply secure coding practices and design robust authentication, authorisation and data-protection models.
• Ensure compliance with enterprise security policies and regulatory standards.

Senior Full Stack Developer Essential skills / knowledge / experience:

• Hands-on experience in software development and solution architecture.
• Deep expertise in Azure, AWS or GCP cloud services.
• Strong background in backend development (TypeScript, React, Node.js, Python), REST APIs and microservices.
• Experience working with NoSQL databases such as MongoDB or Postgres.
• Proficiency with CI/CD pipelines, Infrastructure as Code and DevOps practices.
• Excellent communication and presentation skills, with the ability to articulate complex concepts clearly.
• Familiarity with AI/ML integration and secure cloud architecture is an advantage.

Job Title: Software Developer Hours: 36 hours (full time) Job Status: Fixed Term contract until 31 March 2027 Location: Home based with the expectation of travel within area and nationally where required Salary: £52,575.15?per annum Closing Date: 23.59pm on Wednesday 25 March 2026 Interview Date(s): 14 April 2026 Skills for Care the strategic workforce development and planning body for adult social care in England. We work with employers, Government and partners to ensure social care has the right people, skills and support required to deliver the highest quality care and support now and in the future. Find out more by looking at . Internally we call this role Digital Specialist (Developer).  The above job title is being used for external advertising purposes. Skills for Care has an exciting opportunity for a Software Developer to join our Workforce Intelligence team. The successful candidate will join our multi-disciplinary team working on our Adult Social Care Workforce Data Set (ASC-WDS) service. The service is a GDS assessed service, now in live running. The team follows Agile user-centered methods, working in 2-week sprints to develop and deploy as often as possible. You will be part of a team that provides a valued service to the care sector and to the Department of Health and Social Care. You should have experience with the most used technologies in our tech stack: Angular and Typescript for the front end SASS and the GDS design system for styling NodeJS with an Express API for the backend Postgres database Terraform for Infrastructure as Code Working in an Agile environment Our code is open source and we use Git and GitHub for source control. Shortlisted candidates will be asked to complete an online technical test as the first stage in the recruitment process, followed by a virtual (Teams) interview if successful at the first stage. If you are interested in this role, please access the full job description for further information and we look forward to receiving your application. At Skills for Care, we are committed to creating a culture of Belonging, where all of our People are able to contribute to their full potential. All our People are expected to contribute towards the achievement of our aspirations for equality, equity, diversity and inclusion. To find out more please check our (https://(url removed)/About-us/Equality-diversity-and-inclusion/Equality-diversity-and-inclusion.aspx). At Skills for Care, we want our People to be representative of the society we support, this includes all equality characteristics such as age, ethnicity, disability, sexual orientation, gender reassignment, religion or belief. This lived experience from a diverse group of people helps us with all the work that we do and ultimately supports the social care sector to provide the best quality care. We encourage applications from, but not limited to, people from minoritised ethnic backgrounds, people who identify as LGBTQ+ and people with disabilities. Candidates will always be selected based on experience and potential. --------------------------------------------------------------------------------------------------------------------------- Information about reasonable adjustments We want all applicants to be able to fully participate in our selection processes. We welcome requests for adjustments to our recruitment and selection processes from applicants with disabilities, impairments, or health conditions, and will always consider support available in the recruitment process. Please contact our People Team via email ((url removed)) to discuss any adjustments that you may need

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

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

We are seeking a talented and motivated Frontend Developer with strong expertise in TypeScript to join our growing development team. In this role, you will work on building high-quality, scalable, and responsive web applications using React and TypeScript. You will collaborate closely with cross-functional teams to deliver exceptional user experiences, optimize performance, and contribute to the overall architecture of our platform.

Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London office. It is a full-time role, 40 hours per week.

Accountabilities:

• Develop and maintain scalable and responsive web applications using React.js and TypeScript.
• Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces.
• Write clean, maintainable, and efficient code while adhering to best practices.
• Optimize applications for maximum performance across a wide range of devices and browsers.
• Participate in code reviews and maintain a high level of code quality.
• Troubleshoot and debug issues in both development and production environments.
• Contribute to architectural decisions and collaborate with other engineers on overall application design.
• Ensure the scalability and security of applications by following best development practices.
• Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the project as appropriate.
• Work with version control systems like Git and ensure continuous integration and deployment processes are followed.
• Collaborate with back-end developers to integrate RESTful APIs and handle data flow effectively.

Knowledge and Skills:

• Proven experience in React.js and TypeScript development.
• Strong understanding of JavaScript and modern front-end technologies.
• Experience with state management libraries like Redux, Recoil, or similar.
• Familiarity with RESTful APIs
• Experience with version control systems, such as Git.
• Solid understanding of web development fundamentals: HTML, CSS, and responsive design.
• Strong debugging skills and the ability to troubleshoot performance issues.
• Ability to write clean, modular, and well-documented code.
• Strong communication skills and the ability to collaborate effectively in a team-oriented environment.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

We have a current opportunity for a React Developer on a permanent basis. The position will be based in London. For further information about this position please apply.

The Opportunity

The ETrading Terminal is the interface through which professional traders and institutions access the world’s most important commodity market - live, with depth and precision no competitor can match. You will own the architecture of that experience. This is not a UI layer on top of a data API. It is a real-time, high-throughput trading interface used by some of the most demanding users in financial markets. You will define how it is built, set the patterns the team follows, and push the boundaries of what a browser-based trading platform can do.

Requirements

• 10+ years engineering; 5+ years building production React at scale - component lifecycle, rendering behaviour, and bundle architecture are instincts
• TypeScript mastery in strict mode - complex generics, discriminated unions, conditional types, and type-safe API boundary design
• Vite and modern build tooling; tree-shaking, chunk strategy, module federation, and build performance optimisation in CI
• State management at scale: Zustand, TanStack Query, or equivalent; separation of server, client, and ephemeral UI state
• High-frequency WebSocket data at tick-by-tick rates - back-pressure handling, dropped-frame detection, and reconnection strategy
• Browser internals: rendering pipeline, layout/paint/composite lifecycle, memory profiling, GC pressure, and long-task detection
• WebGL, Canvas, or custom rendering engine for high-density, real-time financial data visualisation
• Design system ownership - token architecture, component API design, versioning strategy, and cross-team adoption at scale
• Testing discipline: unit, integration, E2E (Playwright/Cypress), visual regression, and performance budget enforcement in CI
• GraphQL or REST API co-design with backend teams; schema-first development and automated type generation
• Track record of measurably improving engineering standards - patterns or tooling adopted org-wide
• Cloud infrastructure - Azure preferred, AWS considered; IAM, managed services, automated and auditable deployment pipelines, secrets management

Nice to Have

• Trading UI experience (any asset class) - order books, depth ladders, RFQ workflows, option chains, or execution blotters
• Micro-frontend architecture at scale; WASM integration for performance-critical in-browser computation
• High-frequency streaming data; managing back-pressure and dropped-frame rendering under sustained load
• Financial services or capital markets front-end background; familiarity with market data normalisation

What We’re Looking For

You are the engineer others come to when they do not know what is possible - and you show them. The ETrading Terminal is seen by the world’s most sophisticated market participants. You take that personally, ship things that are fast and resilient, set a standard others aspire to, and treat innovation not as a project but as how you approach every ticket.

To find out more about Huxley, please visit (url removed)

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Founding Engineer (EnergyTech / AI)

London Hybrid (3 days onsite) 70k- 120k + Equity

A venture-backed EnergyTech start-up is building a new type of power company designed for the electrified future.

As renewable energy adoption accelerates, the challenge is no longer just generating power, but storing, managing, and intelligently dispatching it. This team is developing software that sits at the centre of that transition, enabling a new generation of energy suppliers built around flexibility, storage, and intelligent automation.

Backed by leading investors and founded by operators with experience from some of the most respected names in the European energy ecosystem, the business has already launched its first product and is growing rapidly month-on-month. The next phase is building the core technology platform that will power a fully integrated energy supplier launching later this year.

This is an opportunity to join a small, highly capable engineering team building core infrastructure for a next-generation energy platform.

The Role

You will work across the full product stack, helping design and build the systems that power both the customer experience and the operational backbone of the platform.

Engineers here take ownership of problems end-to-end, from shaping early ideas through to delivering production features used by customers.

Responsibilities include:

• Building full-stack product features across web, backend services and data systems
• Designing APIs and integrating with hardware and energy data platforms
• Developing AI-enabled capabilities, including LLM-powered workflows and operational tooling
• Contributing to core supplier infrastructure such as billing systems, operational tooling, and internal platforms
• Working closely with founders and customers to shape the product direction

Tech Stack

• Frontend: React, React Native, TypeScript
• Backend: Python, FastAPI, PostgreSQL
• Infrastructure: GCP, Terraform, Airflow
• AI: LLM integrations and AI-driven automation

What They’re Looking For

• Experience as a Full-Stack Engineer building production systems
• Strong engineering fundamentals and the ability to work across backend and frontend systems
• Comfort operating in a fast-moving start-up environment where priorities evolve quickly
• A proactive mindset with a bias towards ownership and solutions
• Interest in the energy transition or climate technology is a strong plus

Engineers who thrive here tend to enjoy working close to the problem, communicating clearly across technical and non-technical teams, and taking initiative rather than waiting for direction.

Package

• 70k- 120k salary depending on experience
• Meaningful equity
• Private health insurance
• Meal allowance and team dinners
• Hybrid working (London office 3 days per week)

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