Excellent opportunity for a Senior Software Developer to play a key role in architecting, developing, and enhancing our clients in-house trading and research systems.

This is an opportunity to work on greenfield projects, influence architectural decisions, and directly impact systems that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability.

You will primarily work within a C# / .NET / SQL Server / ASP.NET ecosystem, developing high-performance, reliable, and maintainable applications.

Key Responsibilities

Design, develop, and maintain high-performance applications in C# and .NET

Lead architectural discussions and contribute to technical direction

Build scalable, reliable systems to support automated trading and research

Develop and optimise database solutions (SQL Server or equivalent)

Improve performance, reliability, and automation across systems

Mentor junior developers and promote best engineering practices

Participate in code reviews and enforce high standards of quality

Collaborate closely with researchers and traders to translate requirements into robust software solutions

Contribute to continuous improvement of development processes and tooling

Required Skills & Experience

BSc (or higher) in Computer Science or a related scientific discipline

Strong recent experience with C# and the latest .NET platform

5+ years of professional software development experience

Solid experience with SQL Server, Oracle, or equivalent relational databases

Strong understanding of object-oriented design principles and software architecture

Experience building production-grade, scalable systems

Fluency in English with excellent written and verbal communication skills

High attention to detail and a thorough, analytical mindset

Desirable

Experience in multi-threaded and concurrent application development

Network programming experience (TCP/UDP)

Experience with distributed version control systems (Git)

Strong understanding of Windows technologies

Exposure to financial markets or trading systems

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

TPBN1_UKTJ

Applications Developer - London

Are you passionate about building innovative applications and delivering cutting-edge solutions? We are working with a leading global law firm to recruit an Applications Developer to join their dynamic technology team in London.

This is an exciting opportunity to work on high-performance web, mobile, and client-server applications, as well as maintain and enhance existing systems. The role also involves managing and developing SharePoint environments (on-premise and cloud), ensuring optimal performance, security, and scalability.

Key Responsibilities

• Design, develop, and maintain custom ASP.NET MVC web applications and SharePoint solutions.
• Implement responsive, user-friendly interfaces using frameworks such as React, Angular, Bootstrap, and jQuery.
• Develop and optimize SQL databases to support application needs.
• Utilize low-code platforms like PowerApps and Power Automate to streamline workflows.
• Create and manage reports using SSRS and Power BI.
• Provide technical support, troubleshoot issues, and ensure system reliability.
• Collaborate with cross-functional teams to deliver solutions aligned with business goals.

What They Are Looking For

• Degree in Computer Science, Information Systems, or related field.
• Minimum 3 years’ experience in software development, with strong skills in SharePoint, SQL Server, and the .NET environment.
• Proficiency in C#, ASP.NET MVC/Core, and web API development.
• Experience with front-end frameworks and modern development practices.
• Strong problem-solving skills and ability to manage multiple projects.
• Excellent communication and collaboration skills.

Why Apply?

This is a fantastic opportunity to join a prestigious global organization that values innovation and offers a collaborative, forward-thinking environment. You’ll work on impactful projects and have the chance to shape technology solutions for a world-class firm.

Due to the high volume of applications, we are not able to respond to all enquiries. If you have not received a response within 72 hours, please assume you have not been shortlisted at this stage, however thank you for taking the time to apply.

Ryder Reid Legal is a recruitment specialist. For over thirty years we’ve been connecting legal talent with many of the leading law firms in London and internationally. Follow our LinkedIn page for the latest vacancies.

https://company/ryder-reid-legal

Role details

Title: C# .net software developer
Employer: Investment banking
Permanent role Salary range: £75k-95k
Role focus: translation from one language to another
Role requirements: C#.NET Development, Fixed income/ derivatives or any banking is beneficial

This is a new and exclusive Software Engineer - C# / .Net developer to join this investment bank as they expand their software development team. This role is focused on translating one file or language into something the current system can use. You will need to use your software development skills, to understand what a file needs, testing your solution in C#.Net and ensuring it has been translated correctly

As the C# .net software developer, you will be leading on fixed income/ derivative projects within this Investment banking.

Qualifications and Skills

Be well-versed in C#/.Net and/or C++ and have an active interest in other computing technology and tools.
Familiarity with Fixed Income/ Derivatives is a big plus.

For more information and the chance to be considered, please do send through a CV good luck

To find out more about Huxley, please visit

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

Senior Backend Engineer

London - 4 days on site

Up to £110k + benefits

We’re hiring for one of the UK’s fastest growing fintech scale-ups. As a Senior Software Engineer, you will be deeply hands-on designing, building, deploying and operating scalable infrastructure services as part of a platform team. This is a role for someone who enjoys solving hard distributed systems problems and building robust foundations that others depend on.

Responsibilities:

Design, build, deploy, and operate secure, scalable infrastructure and automation

Improve and develop tools that make infrastructure easier for engineers to use

Research and adopt modern cloud-native technologies and best practices

Promote high engineering standards across code quality, testing, and automation

Skills:

Strong backend engineering capability (Golang, Java, or .NET)

Strong hands-on experience building and operating distributed systems in cloud environments (AWS or GCP)

Kubernetes and container orchestration experience

Infrastructure as Code experience (Terraform, Pulumi, Crossplane or similar)

Proven track record leading platform or reliability transformations

Ability to influence across teams without formal authority

If you want to work on a product used by over 100,000 customers this is the role for you.

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age.

TPBN1_UKTJ

Our client is the leader in their field and with pipeline opportunities that would enable them to double their revenue by the end of 2028. To support this, they are in the early stages of a bold digital transformation to improve operational processes and procedures and to modernise systems and practices so that they can deliver quality at pace.

Currently the team are transitioning from traditional software application development using C#, Blazer and SQL Server integrating with Dynamics Business Central, and the Data team provide analytics and insights using SAS, MicroStrategy and Power BI.

The new model is to continue with a .NET tech stack, but the team will build and run so developing applications and deploying with DevSecOps. The Data team will also deploy solutions and will move to Fabric, Databricks or Snowflake.

With a Data Architect now in place, the focus is to recruit a Technical Lead to lead the software engineering function.

This role will formerly move towards a Head of Engineering & Platform position but will remain hands on. This is leading by doing and mentoring so you will still be building full stack C# applications and deploying with DevOps but leading others too. There are 7 Software Engineers, an Automation Tester, Scrum Master, DevOps, Infra Engineers and Service Desk Team.

You need to have experience of leading end to end software development including design, build, testing, deployment and support. The Service Desk team need to work closely with the build and deployment resources so that they can support products more effectively.

Key areas of responsibility:

Define and execute the engineering strategy across Azure cloud, integration, and legacy modernisation, aligned to the clients long-term digital roadmap.

Design and deliver cloud-native solutions that scale efficiently, perform reliably, and integrate seamlessly across business functions.

Lead by example in Azure DevSecOps: create and manage pipelines (YAML), infrastructure-as-code (Bicep, Terraform), and container orchestration (AKS, Docker).

Embed engineering best practice: implement CI/CD, code quality gates, automated testing, and observability from build to production.

Guide platform evolution: re-engineer legacy .NET and SQL systems into modular, API-driven architectures.

Build and empower teams: mentor full-stack, DevOps, and Automation Test engineers fostering autonomy, innovation, and accountability.

Champion security and reliability by design: integrate compliance, performance, and monitoring into every stage of delivery.

Collaborate widely: partner with Product, Data, and Infrastructure teams to ensure alignment between technology capability and commercial goals.

Drive innovation: pilot emerging technologies (AI, automation, data services) that improve efficiency and insight.

Tech Stack seeking:

Full Stack Developer; Design and Build with C#, JavaScript Library (React.js bonus), API Development, SQL Server/Backend Development including ETL/Integration

Azure DevOps (Repos, Pipelines, Boards, Artifacts, Test Plans),

CI/CD automation, gated releases, and environment governance

Infrastructure-as-Code (Bicep, ARM, Terraform)

Containerisation (Docker, AKS) and serverless (Azure Functions)

Monitoring and observability (Application Insights, Log Analytics)

Secrets management and vulnerability scanning (Key Vault, SonarQube, OWASP)

Microservices and event-driven design (Service Bus, Event Grid, Kafka)

Domain-Driven Design (DDD) principles

Overall experience:

8+ years in software engineering, with deep full-stack and cloud experience.

Proven record of leading end to end engineering teams through modernisation or platform rebuilds (Design, build, test, deploy, support)

Azure DevOps and enterprise-scale CI/CD. (DevSecOps a bonus)

Excellent architectural judgement; balancing delivery speed, stability, and cost efficiency. Good understanding of SOLID principles

Strong communication and leadership presence able to influence peers and executives alike. This role needs high energy and to take the team on a journey

A continuous learner, passionate about automation, clean code, and scalable design.

This is an exciting time to join a digital transformation in the early stages to lead and influence their transition to modern practices and systems to help them scale and grow at pace.

The role will ideally be Peterborough 2 days a week and 3 days remote. However this can also be based out of London (City) but with Peterborough for 2 days per month for 4 months then London 1 day a week and Peterborough 1 day some weeks. Travel from London + overnight stays in Peterborough will be paid.

TPBN1_UKTJ

Senior Software Engineer
Fully Remote – UK
Golang / GCP / Terraform
£75,000-£85,000

We have partnered with a fast-growing, cloud-native technology company delivering child safety & well-being solutions to clients across the UK and Europe. The platform is built on modern microservices architecture, leveraging Go (Golang) and Google Cloud Platform (GCP) to power high-performance systems that are used by thousands of customers daily.

Founded over 10 years ago, the company have grown into a global leader within their respective field who are now part of a wider group and now looking to expand their development team with new projects launching this year. The role is fully remote within the UK, and any successful candidate would need to be based in the UK. Sponsorship cannot be offered for this role.

Key Responsibilities

Design, develop and maintain backend services using Golang
Build and deploy scalable Cloud platforms on GCP – AWS or Azure is fine
Good experience with SQL and working with large datasets.
Confident on the Frontend, working with Typescript & React.
Contribute to system architecture and technical decision-making
Develop RESTful APIs and event-driven microservices
Work with cloud-native technologies including containers and serverless
Implement CI/CD pipelines, Terraform and infrastructure-as-code
Other non-essential skills include: Machine Learning, .Net, Testing.
Open to mentoring junior developers and leading on projects.
Salary: £75,000-£85,000
Benefits: Bonus, Share Scheme, 25 Days Holiday, 8% Pension, Private Medical.

If this role sounds of interest, please apply and I can give you a call.

Tim Stock
(phone number removed) | (phone number removed)
(url removed)
(url removed)

Job: Senior Full Stack Web Developer - ONSITE

• Mon-Fri onsite in Debden IG10
• Salary to £100k (multiple roles & levels)+ pension scheme + health
• Free onsite gym & parking
• Offices are a 5 mins walk from Debden tube station (Central line) withclose road links to M11/M25/A406/A12

NB: Please only apply if you are able to work from their Debden (IG10) offices Monday-Friday. Hybrid or remote working is not available. Candidates must be able to demonstrate a sub-60 mins each-way commute time.

Company

Established in 2009 and regulated by the FCA, this multi-award-winning finance & credit company has a proven track record for customer and employee satisfaction. With a Trustpilot rating of 4.8/5 and over 33,500 combined online reviews, they pride themselves on their customer service and their duty as a responsible lender.

What they are looking for

They are seeking an extremely driven, passionate and motivated individual to join their in-house development family. Their ideal candidate will enjoy learning, seeing projects through to completion and thrive on new challenges. As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment. They are always exploring the latest technologies and have recently migrated to Azure where they will be modernising from VMs to App Services, SQL MI and utilising many other services on offer. Other future projects include incorporating .NET Core, SignalR and AI technology such as ChatGPT. Your role will involve enhancing their websites using the technologies listed below and integrating new technologies as needed.

NB: Please only apply if you are able to work from their Debden offices Monday-Friday. Hybrid or remote working is not available.

Main duties and responsibilities

Developing website features and fixing bugs using C#, Entity Framework, Azure Service Bus and SQL Server

Writing unit and integration tests using NUnit

Styling website changes in CSS

Developing JavaScript code using frameworks such as Vue

Attending scrum meetings and briefings with project owners and peers

Writing SQL scripts to modify database schema in SQL Server 2014

Required

Recent legacy .Net projects (essential)

ASP.NET 4.6+

MVC 5

C# 6 including advanced language features e.g., generics, lambdas, delegates

Design Patterns and SOLID Principles

Entity Framework 6+

SQL Server 2014+

TDD/NUnit

Javascript/JQuery/AJAX

HTML5/CSS3

Desirable

ASP.NET Core

Azure Service Bus

Entity Framework Core

Vue

Agile methodologies/Scrum

Automated browser testing/SpecFlow/Selenium

SignalR

ECMAScript6

AngularJS

Other Stuff

NB: Please only apply if you are able to work from their Debden (IG10) offices Monday-Friday. Hybrid or remote working is not available. Candidates must be able to demonstrate a sub-60 mins each-way commute time.

For non-UK Citizens: we cannot accept applications from anyone requiring sponsorship (now or in the future) for UK permanent employment status. If you are using a work visa this must allow you to work in the UK unrestricted for at least the next 5 years.

In accordance with GDPR by applying you give Profile 29 consent to use your data for recruitment purposes only (details of Profile 29s privacy policy can be found at: profile-29 .com/privacy)

Profile 29 recruitment keywords: senior web developer lead web developer London Essex ASP.NET MVC MVC5 C# 6 Design Patterns SOLID Entity Framework SQL Server TDD NUnit Javascript Jquery AJAX HTML5 CSS finance fintech

WebApps Technical Lead - .NET & Azure, London 3 days a week, circa. £90k

We’re looking for an experienced WebApps Technical Lead to drive the design, development and delivery of enterprise-grade .NET applications on Microsoft Azure.

This is a fantastic opportunity for a hands-on technical leader who enjoys mentoring engineers, shaping cloud architecture, and delivering scalable, high-performance solutions in a collaborative environment.

The Role

As Technical Lead, you’ll guide a team of software engineers while working closely with architects, product managers and business stakeholders to translate requirements into robust, secure and scalable cloud solutions.

You’ll play a key role in technical direction, solution design, DevOps implementation, and continuous improvement across our application landscape.

Responsibilities

• Leading the design and development of enterprise-level .NET applications on Azure
• Architecting solutions using services such as Azure App Services, Functions, SQL, Blob Storage, Service Bus & Key Vault
• Mentoring and supporting developers to drive high-quality engineering standards
• Conducting code reviews and championing best practices
• Optimising performance, scalability and reliability of cloud applications
• Setting up and managing Azure DevOps CI/CD pipelines
• Collaborating with stakeholders to turn business needs into technical solutions
• Supporting Agile delivery, including sprint ceremonies and backlog management

Skills required

• Strong hands-on experience with .NET Framework, .NET Core, ASP.NET MVC/Web API
• Deep knowledge of Azure cloud services
• Experience with Azure DevOps, CI/CD pipelines, and Git
• Strong database experience (Azure SQL, Cosmos DB, Entity Framework)
• Experience leading Agile teams and ceremonies
• Proven ability to troubleshoot complex cloud-based applications
• Excellent communication and stakeholder management skills

Please get in touch if you are proactive, solutions-focused, and passionate about building scalable cloud solutions. You enjoy mentoring others, thrive in collaborative environments, and take ownership of delivering high-quality outcomes.

If you’re ready to lead impactful cloud-based development projects in a forward-thinking environment, we’d love to hear from you.

WebApps Technical Lead - .NET & Azure, London 3 days a week, circa. £90k

We’re looking for an experienced WebApps Technical Lead to drive the design, development and delivery of enterprise-grade .NET applications on Microsoft Azure.

This is a fantastic opportunity for a hands-on technical leader who enjoys mentoring engineers, shaping cloud architecture, and delivering scalable, high-performance solutions in a collaborative environment.

The Role

As Technical Lead, you’ll guide a team of software engineers while working closely with architects, product managers and business stakeholders to translate requirements into robust, secure and scalable cloud solutions.

You’ll play a key role in technical direction, solution design, DevOps implementation, and continuous improvement across our application landscape.

Responsibilities

• Leading the design and development of enterprise-level .NET applications on Azure
• Architecting solutions using services such as Azure App Services, Functions, SQL, Blob Storage, Service Bus & Key Vault
• Mentoring and supporting developers to drive high-quality engineering standards
• Conducting code reviews and championing best practices
• Optimising performance, scalability and reliability of cloud applications
• Setting up and managing Azure DevOps CI/CD pipelines
• Collaborating with stakeholders to turn business needs into technical solutions
• Supporting Agile delivery, including sprint ceremonies and backlog management

Skills required

• Strong hands-on experience with .NET Framework, .NET Core, ASP.NET MVC/Web API
• Deep knowledge of Azure cloud services
• Experience with Azure DevOps, CI/CD pipelines, and Git
• Strong database experience (Azure SQL, Cosmos DB, Entity Framework)
• Experience leading Agile teams and ceremonies
• Proven ability to troubleshoot complex cloud-based applications
• Excellent communication and stakeholder management skills

Please get in touch if you are proactive, solutions-focused, and passionate about building scalable cloud solutions. You enjoy mentoring others, thrive in collaborative environments, and take ownership of delivering high-quality outcomes.

If you’re ready to lead impactful cloud-based development projects in a forward-thinking environment, we’d love to hear from you.

RSG Plc is acting as an Employment Agency in relation to this vacancy.

Full Stack Developer - Asset Management Firm - London / Manchester (Hybrid) - Basic salary of up to 65,000 + Bonus and Additional Benefits package

Hays are currently working exclusively with a leading asset management firm assisting them in the recruitment of a Full Stack Developer on a permanent, full-time basis. This role will require candidates to work in a hybrid capacity, 3 days per week in office, in either Central London or Manchester. This is a great opportunity for an enthusiastic and skilled developer to join an established development team within a high-end financial services firm.

The role

We’re looking for an experienced and enthusiastic full-stack developer to join the team on a permanent basis. This person will join a 5-person development team and will be responsible for collaborating with various cross-functional teams to translate business requirements into scalable and efficient software solutions that help drive the business to new heights. You will also be responsible for improving performance in the business’ cloud hosted environment, while also acting as an SME on all architectural and tech stack improvements.

The CEO and CFO of this business are passionate advocates of Artificial Intelligence, with a significant budget recently allocated to this area, in the hope of using AI to drive commercial performance. This would an excellent opportunity for a skilled developer with a curiosity and passion for AI technologies to develop these skills in a professional technology environment

Skill set requirements:

• Professional experience in a software development role, specifically .NET Core, SQL Server, and Cloud Native Technologies and Services (Azure)
• Strong Front End Development and UI Expertise (Angular)
• Experience in translating complex requirements into simple, effective technology solutions for senior stakeholders.
• A curiosity and passion for AI technologies and their use within a professional technology environment
• Experience within Financial Services, specifically asset management / AML / Financial Crime (Beneficial)
• Detail focussed with a First Class University Degree in STEM subject (Beneficial)

What you’ll get in return:

• Starting salary of up to 65,000
• Up to 12% pension (6% cont. / 6% match)
• 25 days annual leave + Bank holidays
• Hybrid working option (3 days / 2 days)
• Annual bonus of between 10% and 25%, depending on personal and company performance.

Desired Skills and Experience Software, Developer, Asset Management, AML, C#, .NET, .NET Core, angular, UI, Front End, Azure, SQL Server, Financial Services, Lead Developer, Senior Developer, AI, Artificial Intelligence,

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 Microsoft 365 Developeris required by fast growing and highly successful global organisation.

This is a new opportunity within their experienced, dynamic IT team.

Purpose:The Senior Microsoft 365 Developer will lead and innovate in the creation, customisation, and optimisation of Microsoft 365 and SharePoint solutions that drive business productivity and enhance user experience. This role involves architecting and developing applications and integrations within the Microsoft 365 ecosystem, including Power Platform and Azure integrations, while providing technical leadership and strategic guidance to projects and teams.

Role Responsibilities:

• Manage, configure, and develop within Office 365 environments, utilising a range of Office 365 applications for document management and collaboration.
• Design and develop applications using Power Apps (Canvas Apps), Power Automate, and Power BI to create integrated solutions that support business needs.
• Knowledge of development using the Microsoft Graph API enhancing interconnectivity across applications.
• Develop, customise, and manage Modern SharePoint sites, including site pages, web parts, and site templates to enhance user experience and productivity.
• Implement Front End solutions utilising SPFx, PnP, and frameworks like JavaScript, TypeScript, and .NET Core for dynamic user experiences and functionality.
• Integrate Office 365 applications with third-party and cloud services using APIs, JSON, and CSOM, ensuring seamless data flow and application interoperability.
• Build Azure-based solutions integrated with Office 365, leveraging Azure Logic Apps, Function Apps, and other Azure services, with programming in JavaScript, C#, and PowerShell.
• Practical Office 365 product experience - configuring, administration, development and deploying solutions using the full range of Office 365 apps for document management and collaboration.
• Knowledge of SharePoint Online, OneDrive, Microsoft Teams.
• Apply practical knowledge of SharePoint Online and associated Services (Search Service, User Profile Service, Compliance Centre, Security Centre, Content and Document Management Principles).
• Apply practical knowledge in the use of PowerShell to automate deployments and perform maintenance tasks
• Experience of undertaking Office 365 BAU Admin activities.
• Implement robust security practices when working with Office365, Power Platform and Azure.
• Demonstrate strong interpersonal skills with an ability to communicate complex technical concepts effectively to clients and stakeholders.
• Capable of working autonomously, remotely, or collaboratively within diverse team environments.
• Prioritise, plan, and multitask effectively within deadlines and budget constraints, applying project management principles where required and ability to work within a project team.
• Experience working on projects, taking requirements, generating designs, and implementing a final solution.
• Strong understanding of Application Lifecycle Management when working with Power Platform and Office365 Solutions.
• Maintain up-to-date skills, learn new technologies as needed, and proactively identify and implement effective solutions for business requirements.

Qualifications/Skills/Experience:

• Knowledge of Azure Servers, Web Applications, Storage Solutions, Data Solutions, Machine Learning Solutions and Networking
• Knowledge of Web Design/Development using HTML, CSS and Adobe Creative Cloud suite of product
• Knowledge of Azure SQL Database implementation and development with Azure Data Factory

Excellent training and career development opportunities exist for the right candidate.

Location: Essex/Hybrid

Basic salary £80-100,000 + excellent benefits.

Senior Software Engineer Salary: £75k-£110k (plus attractive bonus on top) Location: London or Leeds (relaxed about hybrid or remote working, if preferred) My client is a specialist provider of sports pricing and trading technology, developing advanced simulation-based models and risk tools that underpin the performance of major sports brands.

Role Overview Were looking for a Senior Software Engineer to join the Modelling & Data Engineering group at a rapidly expanding sports-technology business. This is a hands-on role in a fast-moving environment where youll help shape new modelling tools, improve existing systems, and contribute to the technical foundations that support the companys growth.

What youll be working on Developing high-quality, maintainable software using .NET technologies.

Taking ownership of greenfield initiatives, designing and building internal tools that support the companys modelling capabilities.

Helping to gather, process and structure the data that powers the modelling pipeline.

Introducing new technologies, improving architectural patterns and reducing technical debt to enhance performance and maintainability.

Collaborating closely with colleagues across the Modelling & Data Engineering function to manage the full lifecycle of internal tooling.

Qualifications Essential A degree in a STEM discipline (Computer Science preferred), or equivalent demonstrable programming ability.

Certifications or training aligned with the companys core tech stack (e.g., .NET, AWS).

Strong programming fundamentals, including data structures, performance-focused development, design patterns and SOLID principles.

Commercial experience working with .NET (ideally .NET 5+).

Good SQL knowledge and at least one year working with relational databases.

Experience with distributed streaming platforms such as Kafka.

Familiarity with in-memory storage solutions like Redis.

Hands-on experience with AWS services such as S3, Athena, ECS, CloudFormation, Lambda and CloudWatch.

Confident using Git in a multi-developer environment.

Background in systems integration, including APIs, networking and data migration.

A commitment to producing clean, well-documented, reproducible systems.

Strong communication, organisation and time-management skills, with the ability to work independently or as part of a team.

Analytical mindset and strong problem-solving ability.

Desirable Interest in US sports (NFL, NBA, MLB, NHL, NCAAB, NCAAF), Cricket, Tennis or Football.

Experience collaborating with Data Scientists or Data Engineers.

Comfort with mathematical concepts such as probability, statistics and matrix operations.

Additional notes While experience with C# is preferred, candidates with a strong Java background and relevant industry exposure - or a clear personal interest in betting, gaming or US sports - will also be considered.

TPBN1_UKTJ

C# .NET £75,000 + bonus + benefits Hybrid working Not every .NET role is the same. This is an opportunity to build and operate software that sits behind critical, real world infrastructure. High reliability. High scale. Proper engineering standards. We are looking for a Senior Software Engineer with strong C# and .NET experience to join a growing engineering function delivering complex, production grade systems. This is a hands on senior individual contributor role. No line management. Real ownership. What you will be doing \* Designing and delivering scalable, reliable software \* Owning complex backlog items from design through to production \* Writing clean, maintainable code aligned to strong engineering standards \* Contributing to technical direction and best practice \* Working closely with Product, Architecture and Engineering leadership \* Ensuring systems are observable, testable and production ready What we are looking for \* Strong C# and .NET experience \* Experience building scalable applications in complex environments \* Solid understanding of TDD and software quality practices \* Comfortable operating in CI CD driven environments \* Confident working across system design, implementation and production support Exposure to Python is a bonus but not essential. This role would suit a senior engineer who enjoys building robust systems rather than churning out features, and who wants genuine ownership without moving into people management. Salary £75,000 plus bonus and benefits. RSG Plc is acting as an Employment Agency in relation to this vacancy. TPBN1\_UKTJ

Senior Developer Senior Software Engineer

• C#, .Net, Typescript, JavaScript
• Hybrid, 1-2 days near Liverpool Street
• Salary, 85,000 to 95,000 + benefits

If you enjoy solving complex engineering problems, learning from highly capable peers, and working on a product where your contribution genuinely matters, please read on.

We’re hiring for a growing, well-funded SaaS business building a sophisticated, data-driven platform that helps organisations understand and manage complex information at scale. The company is in an early investment phase with strong growth ambitions, offering real scope for progression and the chance to help shape both the product and engineering direction. You’ll be part of a bright, collaborative team of talented software engineers and academically strong problem-solvers who value clean design and thoughtful architecture.

The Role
As a Full Stack Engineer, you’ll design and deliver features across a modern stack, working on scalable backend services and intuitive front-end applications that present complex data clearly.

Key Responsibilities:

• Building full-stack features using C#, .NET and TypeScript/React
• Developing scalable backend services for complex data workflows
• Creating responsive, user-friendly interfaces
• Exploring new technologies and contributing to technical improvements
• Working collaboratively in an agile engineering environment

Essential Skills & Experience

• Strong commercial experience as a Software Developer or Full Stack Engineer
• 5+ years experience with C# / .NET and modern JavaScript or Typescript (React preferred)
• Strong problem-solving ability and a collaborative mindset
• A Bachelor’s degree in Computer Science or Software Engineering. 2.1 or above

Why Join?

• Technically challenging, data-driven SaaS product
• Strong investment for growth
• Work alongside a highly capable and intellectually strong team
• Excellent learning opportunities and clear progression as the company grows

If you’re looking for a role where you can learn quickly, tackle interesting technical challenges, and grow with an ambitious product business, hit apply !

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

Role / Job Title:Azure Cosmos DB DeveloperWork Location:LondonMode of Working:Hybrid

• Office Requirement: 1 day a week mandatory in office

The RoleThe role will be integral to realising the customer’s vision and strategy in transforming some of their critical application and data engineering components. As a global financial markets infrastructure and data provider, the customer keeps abreast of the latest cutting technologies enabling their core services and business requirements. The role is critical in this endeavour by the means of enabling the technical and quality assurance thought leadership and excellence required for the purpose.Your Responsibilities

• Develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API).
• Build reusable libraries and frameworks in C#/.NET or Node.js
• Establish robust CI/CD pipelines through GitLAB DevOps to streamline delivery and reduce operational overhead.
• Design efficient data models tailored to NoSQL principles and application requirements.
• Write and tune queries to minimize RU consumption and improve response times.
• Implement indexing strategies and partitioning schemes for optimal performance.
• Develop efficient queries using Cosmos DB SQL syntax.
• Implement automated testing and unit test frameworks.
• Collaborate with solution architects and DevOps teams to integrate Cosmos DB into microservices
• Ensure compliance with security, governance, and data protection standards

Your ProfileEssential Skills / Knowledge / Experience

• Hands-on experience with Azure Cosmos DB including query optimisation and throughput management
• Thorough understanding of Cosmos DB Change Data Feed (CDF) and integration and debugging of Spark with Cosmos CDF.
• High technical proficiency with Cosmos DB SDKs (e.g., .NET, Java, Python, Node.js)
• Thorough understanding of Spark distributed computing concepts.
• High technical proficiency in PySpark and Spark Concepts.
• Experience with concurrency patterns, CLR, and scalable application design.
• Deep understanding of Azure services including Azure Functions, App Services, AKS, and Logic Apps.
• Experience with SQL API and familiarity with other APIs.
• Strong understanding of partitioning, indexing, and consistency levels.
• Experience with Git, version control, and continuous integration tools.
• Strong goal-oriented outlook, problem solving capabilities, written and verbal communication skills, and collaborative mindset to work with internal and external stakeholders.

Solution Architect, Azure, AWS, Cloud Tech, Senior Developer, .NET, C#, GenAI, AI, Microsoft Stack, Professional Services, London

Solution Architect required to work for a large and exciting firm based in Central London. This will mainly be based from home and you would only have to visit the office circa twice a month.

We need this individual to join this exciting, forward thinking technology team to help design solutions around complex products and applications that sit on Microsoft Azure and AWS (mainly Azure). A Microsoft Technology Stack background is essential, and you must be from a Software Engineering or Application Engineering background. This is NOT an Infrastructure based Solution Architect and is focused more around Development (.NET / C# etc).

If you have an Enterprise Architect background and want to apply for this, there would be huge questions as to why you would want this kind of role in the first place. We need someone who:

• Is excellent with Stakeholders and is a proven communicator with good negotiation skills
• Can come up with the most weird and whacky Proof of Concepts (POCs) and be able to present these to the business, explaining the benefits etc
• Is happy to be centred around ‘Product’ and can be creative with this around the business and the business needs
• Is proven with working alongside Developers, proving clear and concise instructions for each journey ahead
• Is happy with lots of prototyping and playing a major part in building the products
• Has recent experience working with Developers who use GenAI to get from A to B more efficiently
• Has some experience with AI related products

We can consider Senior Developers for this role but you must have some experience within Solution Architecture. Also, experience of dealing with 3rd party vendors is be a must. In addition to this, you will have come from environments that have complex integration layers when it comes to products and applications. It is a heavily regulated environment and you have to be mindful of this.

In summary, we need a hands-on, product-focused Solution Architect who builds prototypes, works closely with dev teams, operates in public cloud, understands modern engineering, and can influence stakeholders while helping shape early-stage products in a Microsoft-heavy environment.

We can consider people who have worked for large, complex businesses, along with candidates who have worked within consultancy practices in the past.

This is an excellent opportunity and salary is dependent upon experience. Apply now for more details.

Junior C# Developer 6-month contract London SC Cleared Inside IR35

My Financial Services customer is looking for a Junior C# Developer, that will play a key role in triaging and resolving technical queries during the development of the Synchronisation Lab to act as a platform for industry to demonstrate use cases and understand business models for synchronisation. The Junior C# Developer will proactively engage with Product and development teams to ensure timely responses to queries.

You ll be joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure

Junior C# Developer Skills & Experience required:
• Active SC Clearance.
• Strong hands-on experience with C#, .NET.
• Experience with Agile ways of working.
• Experience with a Microsoft Azure based environment.
• Experience in the Financial Services sector.
• High level support with incident response and troubleshooting.
• Eagerness to learn and improve interpersonal skills.

Junior C# Developer Key Responsibilities:
• Triaging and resolving technical queries.
• Build and maintain database structures and queries using SQL.
• Support the enhancement of synchronisation models based on participant feedback.
• Collaborate with developers and the production team.
• Delivering the technical release of later synchro models.

You must be able to work onsite 2 days per week in London.

Apply now to speak with VIQU IT in confidence. Or reach out to Louise Davies via the VIQU IT website.

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Role details

• Title: C# .net software developer
• Employer: Investment banking
• Permanent role Salary range: 75k-95k
• Role focus: translation from one language to another
• Role requirements: C#.NET Development, Fixed income/ derivatives or any banking is beneficial

This is a new and exclusive Software Engineer - C# / .Net developer to join this investment bank as they expand their software development team. This role is focused on translating one file or language into something the current system can use. You will need to use your software development skills, to understand what a file needs, testing your solution in C#.Net and ensuring it has been translated correctly

As the C# .net software developer, you will be leading on fixed income/ derivative projects within this Investment banking.

Qualifications and Skills

• Be well-versed in C#/.Net and/or C++ and have an active interest in other computing technology and tools.
• Familiarity with Fixed Income/ Derivatives is a big plus.

For more information and the chance to be considered, please do send through a CV good luck

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

Is it time to step into a role where you take real ownership of complex, high-precision technology?

An innovative Oxfordshire-based company is seeking a Senior Software Engineer to help shape and deliver the software behind next-generation systems. This is a hands-on role combining technical leadership with close collaboration across software and advanced hardware teams.

You will play a key role in designing and developing robust applications that directly control precision hardware platforms. The position goes beyond feature delivery. You will influence architecture, strengthen engineering standards, support system deployments and mentor a small team, while remaining actively involved in coding.

This opportunity would suit an experienced engineer with a strong background in C# and .NET, alongside Python for tooling or data work. Experience developing software that interfaces with hardware systems is important, particularly where reliability, timing and real-world performance matter. You should also be confident mentoring or technically guiding other engineers.

Experience within industrial systems, cloud-connected platforms, networking or security would be advantageous.

Salary: 65,000 to 70,000.

Excellent opportunity for a Senior Software Developer to play a key role in architecting, developing, and enhancing our clients in-house trading and research systems.

This is an opportunity to work on greenfield projects, influence architectural decisions, and directly impact systems that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability.

You will primarily work within a C# / .NET / SQL Server / ASP.NET ecosystem, developing high-performance, reliable, and maintainable applications.

Key Responsibilities

• Design, develop, and maintain high-performance applications in C# and .NET
• Lead architectural discussions and contribute to technical direction
• Build scalable, reliable systems to support automated trading and research
• Develop and optimise database solutions (SQL Server or equivalent)
• Improve performance, reliability, and automation across systems
• Mentor junior developers and promote best engineering practices
• Participate in code reviews and enforce high standards of quality
• Collaborate closely with researchers and traders to translate requirements into robust software solutions
• Contribute to continuous improvement of development processes and tooling

Required Skills & Experience

• BSc (or higher) in Computer Science or a related scientific discipline
• Strong recent experience with C# and the latest .NET platform
• 5+ years of professional software development experience
• Solid experience with SQL Server, Oracle, or equivalent relational databases
• Strong understanding of object-oriented design principles and software architecture
• Experience building production-grade, scalable systems
• Fluency in English with excellent written and verbal communication skills
• High attention to detail and a thorough, analytical mindset

Desirable

• Experience in multi-threaded and concurrent application development
• Network programming experience (TCP/UDP)
• Experience with distributed version control systems (Git)
• Strong understanding of Windows technologies
• Exposure to financial markets or trading systems

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

Make an Impact with Technology That Matters Imagine building software that millions of people rely on to receive critical information. You will be shaping a platform that supports government bodies, national institutions, and education services, helping deliver communications efficiently, securely, and ethically. Right now, a brand-new platform is being built from scratch, and this is your chance to influence its architecture, technology choices, and future direction. You will be joining at the perfect moment to make your mark. What You Will Do \* Shape the architecture of a next-generation SaaS platform \* Build robust microservices that scale and perform \* Develop in .NET and C# on the backend \* Create intuitive, high-performing frontends with React and TypeScript \* Deploy cloud-native solutions in Azure \* Collaborate closely with senior technical leadership, helping set engineering standards \* See your work directly impact real-world public sector users \* You will take ownership, make decisions that matter, and help define how the platform evolves. Why You Will Love This Role \* You will influence a product from day one, your ideas and decisions will shape the future \* You will work on meaningful projects that make public sector communications more reliable, efficient, and ethical \* You will have autonomy once onboarded, with flexibility to work remotely \* You will be part of a small, collaborative team where your input is heard and valued \* You will learn and grow alongside highly experienced technical leadership What You Bring \* Deep experience in .NET/C# and building backend services \* Strong React skills, with a solid understanding of its fundamentals \* Experience designing or contributing to microservices architectures \* Confidence in containerisation (Docker) and cloud-native solutions (Azure) \* A solid grasp of SOLID principles, clean architecture, and maintainable code Bonus if you have worked in SaaS, public sector systems, or scalable high-availability platforms. How You Will Start Month 1 – Office-Based in Epsom \* Weeks 1–2: Immerse yourself in the product and business, meet the team, and understand the roadmap \* Weeks 3–4: Start hands-on development, working closely with the CTO, gradually taking ownership and ramping up at a pace that suits you After onboarding: \* Work remotely with flexible arrangements \* Required office attendance once every 3-week sprint (Mondays) \* Take full ownership of your work and influence the platform All recent hires have been fully productive within the first month. You can too. Who You Are You are someone who: \* Wants to build things properly from the ground up \* Loves solving complex technical challenges \* Cares about clean, maintainable architecture \* Wants your work to have visible, real-world impact \* Thrives in a collaborative team but can work autonomously \* Are happy to travel to Epsom, particularly during the first month for onboarding and induction \* Has the right to work in the UK (please note that visa sponsorship is not available) If you want more than just another job and want to help shape a platform that matters, this is the role for you

Permanent | Hybrid Working | South East England We are partnering with a leading organisation operating in a complex, real-time operational environment to recruit a Technical Lead within its Integrated Operations and Planning technology domain. This role sits at the heart of mission-critical systems that power operational planning and real-time control functions. The product suite underpins essential processes such as workforce planning, scheduling, disruption management and integrated control operations. You will shape the technical direction of these platforms, ensuring solutions are scalable, resilient and future-ready. Working closely with Product and Delivery leadership, you will balance business priorities with sound engineering decisions to deliver measurable operational value. Role Purpose - Provide technical leadership for a product team, ensuring solutions are scalable, secure and fit for purpose - Act as the technical authority across product, delivery and engineering collaboration - Guide and mentor engineers, promoting sustainable engineering practices across the full product lifecycle - Balance short-term delivery objectives with long-term maintainability, resilience and cost-effectiveness Key Responsibilities - Provide hands-on leadership, setting coding standards and reviewing designs to ensure best practice in security, performance and integration - Define and own technical architecture across operational planning and control products - Partner with Product Managers to translate business requirements into technical designs, effort estimates and roadmaps - Work with Delivery Leads to align technical feasibility with delivery timelines, identifying risks and dependencies early - Champion modern engineering practices including CI/CD, cloud-native design, API-first development and automated testing - Collaborate with enterprise architecture and governance forums to ensure alignment with broader technology strategy and standards - Act as a trusted advisor to operational stakeholders, clearly articulating technical trade-offs and outcomes - Mentor and develop engineers, fostering a high-performing, continuously improving team culture - Lead root cause analysis and resolution of critical production issues impacting live operations Experience & Skills Required - Proven experience as a Technical Lead or Principal Engineer within large-scale, mission-critical systems - Strong software engineering background with expertise in at least one major development stack (e.g. Java, .NET, Python or optimisation tooling) - Experience designing and delivering cloud-native solutions (AWS preferred), with strong knowledge of APIs, event-driven architecture and microservices - Familiarity with operational planning, scheduling or real-time control systems within transport or similarly complex environments (desirable) - Strong understanding of DevOps practices including CI/CD pipelines, automated testing and observability - Experience working within Agile delivery environments and shaping effective team ways of working - Strong analytical and problem-solving skills, with the ability to balance time, cost and technical debt considerations - Ability to influence stakeholders at all levels, translating technical concepts into clear business value - Demonstrated experience mentoring engineers and building high-performing teams - Degree in Computer Science, Software Engineering or equivalent practical experience