1 to 25 of 30 C# .NET Developer Jobs in the UK

Full Stack .NET Developer (C#, ASP.NET Core) Oxfordshire/Hybrid (1 day per week in office) Easily commutable from Oxford, Milton Keynes, Birmingham and London (direct rail) £40,000 to £50,000 plus great benefits. How often do you get to rewrite a whole product … over the next few years, and this role sits right in the middle of that work. You will be building the new product in C# and ASP.NET Core: real greenfield code on one side, a live system with real users on the other, and the job of moving ...

Senior C# Developer/Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £110k+ Are you a senior, backend focused C# Developer with a strong academic background? You could be working on complex, high impact systems at a growing FinTech scale … Continuous career development opportunities Social team atmosphere with a range of events and early finish for drinks on Fridays Your role: As a Senior C# Developer you will collaborate with a small, talented team to deliver the core platform using the latest versions of C# .Net ...

C# .NET Developer – Banking/Fintech45KQuant Capital is urgently looking for a C# .NET Developer to join one our high profile client are a well known global financial technology vendor, best known in the core banking space.The C# .NET … modification and maintenance of the software.The Lead .NET Developer must have:Bsc in Comp Sci or related discipline3 years + C# .NET DevelopmentSQLFinancial services experience is desirable but not essentialThis is a great opportunity to work in a challenging, high profile role within ...

C# Developer/Full Stack Engineer (C# .Net Agentic AI) Reigate/WFH to £95k Are you a technologist C# Developer with an AI first mindset and full stack development skills? You could be progressing your career in a senior, hands … birthday off) Pension, Health Care and Life Assurance Training and career development Social events and a range of other perks Your role: As a C# Developer you'll design, develop and enhance modern SaaS applications, working closely with Product Owners to shape new features from concept through ...

Senior C# Developer/Engineer (C# .Net Desktop Application) Reigate/WFH to 90kDo 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 … technically challenging systems with continual learning opportunities a global Fintech.As a Senior C# Developer you'll join an Agile team responsible for the flagship desktop insurance platform that handles 4 billion requests per month. You'll play a key role in architecting, designing and developing new features ...

Engineer/Software Developer, C# .NET, Reading, £450 day rate, Outside IR35, COR7631 We're looking for an experienced AI Engineer/Software Developer to join a long-term contract with an initial 3-month term and a strong likelihood of extension … rate of up to £450, outside IR35. As an AI Engineer/Software Developer, you'll be responsible for developing software using C# and .NET while leveraging AI-powered tools throughout the software development lifecycle. You'll be someone who naturally incorporates AI into ...

Software Developer – C#/.NET/WinForms Hertfordshire/Hybrid Permanent | 37.5 hours per week Build technology that makes a real difference We’re working with an established technology-for-good organisation that develops specialist software designed to help protect vulnerable people and support professionals … join their talented development team and work on products that have a genuine real-world impact. This would suit a junior to mid-level C# developer who enjoys building Windows applications, solving technical problems and wants to work somewhere where the software they create has a meaningful ...

.NET Developer (C#/React) Location: Cambridgeshire- Hybrid ( 3 days a week onsite) Day rate: Up to £550 a day (Inside IR35) Contract: Initial 6 Months- Likely extensions We're working with a leading organisation that is investing heavily in the development and enhancement … teams and key stakeholders to deliver high-quality technical solutions within a fast-paced Agile environment. Key Responsibilities Design, develop and maintain applications using C# and .NET technologies Build modern, responsive user interfaces using React Develop and integrate RESTful APIs and backend services Work with databases ...

Senior C#/.NET Developer | Risk & Securities Lending Location: London (Hybrid) Contract Duration: 6 Months Industry: Financial Services About the Opportunity Are you a seasoned C# engineer with a deep understanding of financial markets? We are seeking an experienced Senior C#/.NET … will deliver scalable, robust solutions in a fast-paced, regulated environment. What You Will Do System Development: Design, build, and maintain high-performance C#/.NET applications supporting Risk and Securities Lending workflows. API Integration: Build and consume RESTful APIs to seamlessly connect complex upstream and downstream ...

Principal C# Developer/Engineer (C# .Net AWS Python) London/WFH to 120kWould you like to join a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal … influence and progression As a Principal C# Developer you will architect and build highly performant and scalable solutions using the Microsoft tech stack and SOLID design principles, collaborating with cross functional Agile project teams in 2 week Sprints, you'll be an advocate of best practice ...

Principal Backend Developer (C#/.NET) The Opportunity This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You'll be joining a company that's scaling rapidly, building innovative … proof. Working closely with product owners, testers, and front-end teams, you'll bring engineering excellence into every decision. With a stack centred on C#, .NET, cloud services, and automation frameworks, you'll be both hands-on in coding and guiding others to deliver their best work. ...

Senior C# Developer/Backend Software Engineer (C# .Net Core) Newcastle onsite to £110k+ Are you a senior, backend focused C# Developer with a strong academic background? You could be working on complex, high impact systems at a growing FinTech scale ...

C#/.NET Developer Salary: £40,000 to £65,000, depending on experience Location: Aberdeen, ideally hybrid, with flexibility depending on the candidate’s location Permanent We are recruiting for a global software business that develops real-time data platforms for the energy industry. … product development and improvements to established software platforms. The role You will be responsible for: Developing and maintaining backend applications using C# and .NET Designing and supporting APIs and integration services Working with SQL Server or PostgreSQL Building event-driven and message-based systems Writing clean, maintainable ...

C# Developer/Full Stack Engineer (C# .Net Agentic AI) Reigate/WFH to £95k Are you a technologist C# Developer with an AI first mindset and full stack development skills? You could be progressing your career in a senior, hands ...

C# .NET DeveloperBrussels90,000 Plus Bens – Flex WorkingQuant Capital is urgently looking for C# .NET Developer to join our high profile client.Our client is a well known insuretech business. They are a small subsidiary of a much larger financial exchange firm.The first … developed components and processes.C# Developers must have:At least 5 years of proven track of record of software design and development.Advanced knowledge of C# and .NET platform with at least 3 years of experience.Experience with MS SQL Server.Outstanding analytical and problem-solving capabilities.Knowledge of design patterns ...

Software Developer Chesterfield | £50k+ React | C#.NET v10 | SignalR | Claude Major IT & Digital are proud to be partnering with a leading international business with over 30 years industry experience delivering industrial IT solutions across both manufacturing, energy and utility sectors . Successfully achieved Investors in People award … business from a Chesterfield location. As part of continued expansion within the software development team my client has immediate requirements for an experienced C# .NET (v.10) Developer with strong React (v.19) skills to support the development of new features, new applications and API integrations. This ...

C#/.NET Core/MVC/ASP.NET Developer – Contractor Location: Office Based, Manchester, M32 0FP Hours: Full Time – 6 Month Contract Salary: £45,000 per annum pro rata Crystal Ball is a Multi-Award-Winning vehicle tracking and lone worker service provider based … entire UK. The Crystal Ball system comprises of mobile phone/tablet client software (all major platforms) as well as scalable server-side architecture (C#/.NET Core/MVC/ASP.Net/SQL Server) and is developed and maintained entirely in-house and we are looking ...

Principal Software Developer, AI Integration, C#, £550 day rate, Outside IR35, Reading, COR7630 We're looking for an experienced Principal Software Developer to join a long-term contract with an initial 3-month term and a strong likelihood of extension up to 18 months. This … development lifecycle, improving productivity and modernising engineering practices. What's required of the Principal Software Developer? Strong commercial experience developing software with C# and .NET Experience leading or supporting the adoption of AI within a software development team Knowledge of AI-assisted development tools, such ...

C# ASP.NET Developer – FintechQuant Capital is urgently looking for a .NET Developer with both C# and ASP.NET skillsto join our high profile client.Our client is a leading software provider to the front office wealth and asset management market with customers across … pipeline).The product has a web element as well as a backend server based high availability platform so work is mixed both ways. C# Developers must have:2 years commercial experience upwards (we have 3 roles)C#SQL or OracleDHTMLASP.NETIdeally some exposure to C++ or VB as some ...

maintaining Optimizely centric based solutions as well as bespoke solutions written using .NET.Implementing Optimizely (and associated technologies) and bespoke software solutions using .NET Core/.NET Framework, C#12 and ASP.NET Core.Collaborating effectively with QA, BA, PM, DevOps and other members of the wider Engineering and agency … evolved as practices mature.Ensure that the technical objectives of the Optimizely Engineering team are met - ensuring that our reputation for Optimizely and .NET technical excellence is maintained and excelled.Candidate Criteria:Good Optimizely CMS development expertise using versions 11 and 12; alternatively highly experienced using Umbraco CMS.Good knowledge ...

About the Role C#, .NET, .NET Core, SQL Server, T-SQL, Entity, Azure, App Services, Azure Service Bus, Event-driven architecture, APIs, CI/CD, DevOps. We have 2 great permanent job opportunities to join our client in early 2026. Based in Kent offices ...

LtdLocation: ManchesterSalary: 40,000 to 50,000Sector: I.T.Job Type: PermanentWork Hours: Full TimeContact: Jim WalshEmail: careers@nanotekltd.co.ukApply for this job nowJob DescriptionEssential skills include C#, T-SQL, ASP.Net, WCF and HTML5/CSS3 with at least 5 year’s commercial experience. Desirables include ASP.MVC, Telerik Kendo UI or other … director to improve the overall design and architecture of the company products, and also provide mentoring to other members of the team.Essential skills include C#, T-SQL, ASP.Net, WCF and HTML5/CSS3 with at least 5 year’s commercial experience. Desirables include ASP.MVC, Telerik Kendo UI or other ...

insurance underwriter in the City of London.They are now looking to grow their software development team and are looking to recruit a C# .net Software Developer.You will have at least 5 to 7 years expertise in developing complex software with C#. A strong mathematical background would … advantageous but not required.Must have excellent communication and interpersonal skills.Expert in C# Development coupled with Java/jQuery Web development Web API, CSS.You will have solid SQL Server experience (stored procedures, table design and some maintenance).Microsoft Office including VBA and advanced skills in Excel and HTML/IIS.Develop ...

C# ASP.NET Core DeveloperLooking for your next challenge Working with C# ASP.NET Core, Azure and Angular within a microservices architecture you will help to create the next iteration of software applications which is changing the international travel industry as we speak. Required experienceC#ASP.NET CoreAPI developmentAngularTypescript, JavaScript, HTML ...

000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: cv@nexusjobs.comTelephone: 020 7488 6900Apply for this job nowJob DescriptionFullstack with C# Dot net HTML Web Software DeveloperOur Client is leader in the development of software for the financial sector.We are looking for a creative, detail-orientated Web Developer … join our Web Development team. You must have at least 5 years experience of working as a Fullstack Web Software Developer with C# Dot Net HTML and CSS.Within the Web Development team, you will have the opportunity to enjoy working with a range of web technology across ...