1 to 25 of 51 C# .NET Developer Jobs in the UK

Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £130k Do you have expertise with backend C# combined with strong technical leadership skills? You could be progressing your career in a hands-on Lead C# Developer role … well-funded Fintech scale-up. As a Lead C# Developer/Backend Software Engineer you'll design and implement the logic behind core applications, build APIs and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable ...

Bracknell, Berkshire | £75k - £85k per year C# Developer/Backend Software Engineer (C# .Net API SQL) Bracknell/WFH to £85k Are you a backend focussed C# Developer? You could be progressing your career in a senior, hands-on C# Developer role, working on a major rebuild of a leading international payments platform. As a C# Developer you'll join a small, autonomous engineering team of around 4-6, including QA and a Team Lead, helping to modernise backend services and build the next ...

Role: Senior C# .NET Developer Location: London, UK Working Pattern: Hybrid, 3 days per week onsite, Canary Wharf or Liverpool Street Employment Type: Contract Rate: £500 a day Inside IR35 via Umbrella Role Overview We are seeking experienced Senior C# .NET Developers … teams to deliver scalable, secure and high-performing solutions in a highly regulated environment. Key Responsibilities Design, develop and maintain enterprise applications using C# and .NET. Develop scalable, secure and high-performance APIs, services and distributed applications. Work with Technical Analysts and business stakeholders to translate requirements into technical ...

C#/.NET Developer – Front Office, Electronic & Low Latency Trading Systems Join MARGO in the UK (London) – Perm & Contracting Opportunities MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where … Front Office/Trading IT environment of one of our tier-1 investment banking or trading partners. The teams design and maintain mission-critical C#/.NET systems supporting electronic trading, real-time risk and analytics platforms across multiple asset classes (Equities, Fixed Income, Commodities, FX, Derivatives ...

Microsoft Office Add-In Developer (.NET/C#) Office Add-ins | VSTO | Azure | Azure DevOps | Inside IR35 | ASAP Start | Contract until January 2027 We're partnering with a prestigious London-based law firm to secure an experienced Microsoft Office Add-In Developer … bespoke Office solutions used across the business. This role is ideal for a developer with strong experience in .NET, C#, VSTO and custom Microsoft Office add-ins , alongside exposure to Azure-hosted solutions and Azure DevOps (ADO) pipelines . While primarily remote, candidates should ...

11851SR £35k - 45k per year + Bonus + Pension + Excellent Benefits C# .NET Developer Permanent | Hybrid (2-3 days on-site per week) | Taunton, Somerset | Up to £45,000 per annum Our client is looking to onboard a Junior to Mid-Level Back … C# .NET Developer on a permanent basis to join their growing development team.This is a fantastic opportunity for someone looking to develop their career within a supportive and forward-thinking environment, while working on a range of exciting projects and gaining valuable experience across ...

Lead C# Developer/Engineer (C# .Net Desktop Application) Reigate/WFH to £100k Do you have expertise with C# desktop development, working on complex scalable systems? You could be progressing your career, in a senior, hands‐on leadership role working on complex … contribution) Health Care and Life Assurance Training and career development Social events and a range of other perks Your role: As a Lead C# Developer you'll manage three Agile teams comprising around ten experienced software engineers, responsible for the flagship desktop insurance platform that handles ...

Lead C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £130k Do you have expertise with backend C# combined with strong technical leadership skills? You could be progressing your career in a hands-on Lead C# Developer role … well-funded Fintech scale-up. As a Lead C# Developer/Backend Software Engineer you'll design and implement the logic behind core applications, build API click apply for full job details ...

LocationLondon, England, United Kingdom# Senior Microsoft .NET/C# Developer at N Consulting LtdLocationLondon, England, United KingdomSalary£300 - £325/dayJob TypeContractDate PostedMay 13th, 2026Apply Now**Job Title: Senior Microsoft .NET/C# Developer****Location: Basildon, UK****Work Mode … Days Onsite****Job Type: Contract- 6 months with high possibility of extension****JOB DESCRIPTION:**We’re seeking a **Senior Microsoft .NET/C# Developer** with 8+ years of hands-on experience building and supporting high-quality applications. This role requires a strong communicator ...

Microsoft Office Add-In Developer (.NET/C#) Office Addins | VSTO | Azure | Azure DevOps | Inside IR35 | ASAP Start | Contract until January 2027 We're partnering with a prestigious London-based law firm to secure an experienced Microsoft Office Add-In Developer to support … bespoke Office solutions used across the business. This role is ideal for a developer with strong experience in .NET, C#, VSTO and custom Microsoft Office add-ins , alongside exposure to Azure-hosted solutions and Azure DevOps (ADO) pipelines . While primarily remote, candidates should ...

flat structure where you will get your voice heard and can make a real impact on the bottom line, earning significant bonuses. As a C# Developer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems … within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka, Redis and TypeScript/Angular; using the right tool for the job, you'll be able to pick up new technologies and make recommendations ...

smarter, more efficient ways to design and deliver complex projects. We are looking for an experienced Software Developer with strong expertise in C#, .NET, and CAD automation to build and enhance engineering tools, particularly within SolidWorks and AEC applications. This role focuses on improving engineering … across projects. What to expect from the role Automation & CAD Development Develop and maintain SolidWorks add-ins, macros, and API-driven automation tools using C# Automate design workflows, including modelling, drawings, and BOM creation Improve efficiency and consistency by reducing manual engineering effort Application Development Design and build Windows ...

C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record … developing with C# .NET. The Client would like meet candidates ideally with some understanding Trading Floor projects to include Fixed Income, Risk Management, Swap Options and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems so an understanding ...

software development lifecycle while supporting high engineering standards within a collaborative team environment. Key Responsibilities: Design, develop, and enhance enterprise-level software solutions using C#, .NET/.NET Core, Razor, Web API, SQL Server, HTML, and JavaScript. Work closely with Product Owners, testers, UI/… difference to our customers. Proven experience as a Senior Developer within a SaaS or enterprise software environment. Strong hands‐on expertise in C#, .NET/.NET Core, and SQL/T‐SQL. Solid understanding of database design, performance optimisation, and query tuning. Experience ...

software development lifecycle while supporting high engineering standards within a collaborative team environment. Key Responsibilities: Design, develop, and enhance enterprise-level software solutions using C#, .NET/.NET Core, Razor, Web API, SQL Server, HTML, and JavaScript. Work closely with Product Owners, testers, UI/… practical delivery. Requirements: Proven experience as a Senior Developer within a SaaS or enterprise software environment. Strong hands-on expertise in C#, .NET/.NET Core, and SQL/T-SQL. Solid understanding of database design, performance optimisation, and query tuning. Experience delivering ...

Senior Full Stack Developer (React/C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: 500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front … capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need ...

Senior Full Stack Developer (React/C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Birmingham - flexible remote working options available - Candidates UK wide can be considered Rate: To 500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front … capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced, client facing Senior/Lead Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. ...

Senior Full Stack Developer (React/C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Birmingham - flexible remote working options available - Candidates UK wide can be considered Rate: To £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front … capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced, client facing Senior/Lead Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. ...

Nexus Jobs Limited is recruiting a C# .NET Software Developer for our client, a niche boutique broker specialising in FX, based in London. You will work on trading systems with FX and Fixed Income components, and collaborate closely with traders to deliver robust software. … role requires 3–5 years of experience with C# .NET, ASP.NET Core MVC and SQL Server, plus an understanding of FX instruments and possibly FIX protocol. #J-18808-Ljbffr ...

Senior Developer/Full Stack Developer/Backend/Frontend/Software Engineer/C#/C#.NET/.NET Core/ASP.NET/SQL/T-SQL/Web Applications/API/Developer/Programmer/Mentoring/Remote/… Developer/Senior Developer/Software Engineer (full stack - 80% backend/20% front end) Strong hands-on expertise in C#, .NET/.NET Core, and SQL/T-SQL/Stored Procedures. Front end skills such as Razor/Blazor ...

Developer to join its Trade Operations IT Delivery Team. You will design, develop and support bespoke multi-asset class applications using C#, .NET Core, Web API, and Angular front end while collaborating with business analysts and IT colleagues. You will deploy changes to production ...

Proactive Appointments Limited is seeking a Junior to Mid-Level Back-End C# .NET Developer for a permanent, hybrid role in Taunton, Somerset. You will join a growing development team to design and build scalable backend systems while advancing through the full software lifecycle. ...

Talan is seeking a skilled C# .NET Developer with REACT experience to join our delivery teams working on Front Office platforms within Global Markets environments . In this role, you will design, build, and enhance regulatory, alerting, and sales enablement solutions , supporting front-office users … third-line support and assist with troubleshooting production incidents Contribute to code reviews and continuous improvement initiatives Skills & Experience (Required) Strong development experience in C#/.NET & REACT (server-side and/or full-stack) Experience building web-based applications and RESTful APIs Solid experience with relational ...

Lead Engineer, Lead Developer, Full Stack Engineering, Azure, .NET, C#, React, Mainly Remote, Manchester Lead Engineer/Lead Developer required for a fast growing and forward-thinking Professional Services organisation. This is mainly remote, with some responsibility to visit the Manchester office when … edge to it too so any experience with GenAI (Co-Pilot, ChatGPT or Claude etc) would be very welcome. Key development skillset required: C#, .NET platform, Python, Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, ARM/Bicep templates), SharePoint and React ...

Lead Engineer, Lead Developer, Full Stack Engineering, Azure, .NET, C#, React, Mainly Remote, Leeds, West Yorkshire Lead Engineer/Lead Developer required for a fast growing and forward-thinking Professional Services organisation. This is mainly remote, with some responsibility to visit the Leeds … edge to it too so any experience with GenAI (Co-Pilot, ChatGPT or Claude etc) would be very welcome. Key development skillset required: C#, .NET platform, Python, Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, ARM/Bicep templates), SharePoint and React ...