22 of 22 C# Developer Jobs in Slough

Senior C# Developer/Engineer (C# .Net) London/WFH to £80k Are you a skilled C# Developer looking to work on complex and interesting systems with continual learning and self development opportunities? You could be progressing your career at in a senior … hands-on role at a successful and scaling Retail FX Brokerage working on Greenfield systems. As a Senior C# Developer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React … deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern development environment with microservices. There are many technical challenges to explore, the initial project will be to build a KYC system from More ❯

Senior C# Developer/Software Engineer (Windows Desktop Trading Systems) London to £140k Are you a Senior C# Developer with strong Windows desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over … billion under management. As a Senior C# Developer you will work on critical systems across front, middle and back office systems to support trading, operations, finance, compliance and investor relations, optimising system performance to ensure efficient real-time data processing, reporting and automation of operational workflows. You … ll focus on building C#, WinForms, WPF desktop applications and design and implementation of scalable, service orientated architectures (SOA) but will also gain exposure to web applications using React and/or Angular. This is a senior, hands-on position, you'll collaborate with colleagues in the US and More ❯

Senior C# Developer/Software Engineer (C# .Net AWS Python) London/WFH to £100k Would you like to join a growing and profitable start-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of … influence and progression? As a Senior 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 and … week. About you: You are an experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong C# backend development skills, ideally also Python coding skills You have a good knowledge of AWS You have experience of working on highly scalable systems More ❯

C# Developer/Software Engineer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a … C# Developer you'll collaborate with a team of highly intelligent technologists and finance professionals to develop algorithmic trading systems working with a modern tech stack, with opportunities for technical ownership from day one. You'll partner with Quant teams to help architect valuation, risk and pricing … discipline from a top tier university (i.e. Russel Group or top 100 global university), backed by A grades at A-level You have advanced C# .Net programming skills including .Net Core (will also consider Java, Python or C++ background if happy to use C# going forward) You have More ❯

Job Title : Senior C# Developer – Elite Fintech Company (up to £120K + Bonus + Hybrid) Client : Elite Fintech Company Salary : Up to £120,000 + performance-based bonuses Location : London/Hybrid Roles and Responsibilities : We are partnering closely with an Elite Fintech Company who are looking … for a Senior C# Developer to work on building out their Front Office Fixed Income trading platform. With a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a Senior C# … top-tier infrastructure teams in the financial sector. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a Senior C# Developer. 4+ years of work experience in a Fixed Income environment such as Bonds or Swaps. Proficiency in modern software development practices, including version More ❯

Commodities Trading C# Developer 6 Month Contract Location: London (Hybrid) Lorien’s UK leading Investment banking client are currently looking for a highly skilled Commodities Trading C# Developer to join the team on an initial 6-month contract. Responsibilities: To design and develop key … considered. Ensure supportability of solutions Follow the team procedures for release control, code review, deployment, source code management and architectural governance. Key Skills .Net C# SQL Servers Microservices Consul Octopus Commodities Investment banking/FS If you find this opportunity intriguing and aligning with your skill set, we welcome More ❯

C# .NET Developer - London - Commodities Trading - up to £85k + 30% bonus We're working with a leading commodities trading firm based in London that is embarking on a series of greenfield projects in the gas and power trading space. They are looking to bring on an … experienced C# .NET Developer with proven knowledge of the FIX protocol to help build and scale a suite of high-performance trading applications. This is a rare chance to get in at the early stages of multiple strategic system builds - working closely with traders, quants, and front … office technology teams to deliver low-latency, scalable trading solutions. Experience required: Strong hands-on experience with C#/.NET Solid hands on experience with FIX Protocols (connectivity, message handling, session management) Background in trading environments - ideally in commodities or energy Ideally, you'll have exposure to Oracle Familiarity More ❯

.Net Developer/Software Engineer (C# TypeScript) London/WFH to £85k Would like to progress your career as a .Net Developer, working on a modern, web based, tech stack with continual learning and development opportunities as part of a diverse team? You could be … to design and develop new features and enhancements to the company's flagship web based trading product. You'll focus on backend systems using C# and TypeScript but will also have exposure to front end components in Angular and React within a TDD environment. Location/WFH: You can … range of facilities including large kitchen, café, roof top bar, showers and all the latest kit to work on. About you: You have backend C# .Net, ASP.Net MCV application development skills You also have experience with TypeScript, Angular or React You have a good understanding of Docker for Containerisation More ❯

Role Type : Perm Title – Senior C# Engineer Client – Established Financial Institution Salary - Up to £120,000 P/A + Bonus Location – London/Hybrid My client is a well-established and successful tech house working in the finance sector who are looking a talented senior C# Developer … technologists out there, one some of the most up to date tech in the industry, on a greenfields project! Requirements: Strong experience working with C#/.Net Experience working with Cloud Technologies (Azure preferred) Experience working with Typescript - Angular or React Strong SQL experience Finance experience a plus! Strong More ❯

My client, a top performing global hedge fund, is looking for a talented C# Developer to join their front-office technology team. This is a unique opportunity to work closely with traders and quants, building low-latency, high-performance systems that directly impact trading outcomes. You’ll … be developing and enhancing critical components across pricing, execution, and risk, using modern C# and .NET technologies in a fast-paced, collaborative environment. The role offers exposure to cutting-edge tech, a flat structure with strong technical mentorship, and the ability to see your work make a tangible impact … on the business. Key Responsibilities will include: Designing and building high-performance trading tools and APIs in C# You’ll be developing robust, scalable applications that power real-time trading and analytics. Expect to work on everything from low-latency market data processing to trade capture systems, all built More ❯

C#, OMS, FIX, Docker, Kubernetes, Kafka, AWS, Hedge Fund McGregor Boyall are partnering with a premier London hedge fund enhancing functionality on their OMS platform. In this role, the successful applicant will be implementing real-time trade execution flows, developing robust message handling patterns, and optimising performance-critical systems … where microseconds matter. The tech stack combines C# with React/TypeScript frontends (backend focus on this hire), message-oriented middleware for streaming market data, and both SQL Server and Redis for different persistence needs. You'll work within modern DevOps practices using containerization and CI/CD pipelines. … you'd collaborate directly with portfolio managers and traders to solve complex problems at the intersection of technology and financial markets. Required skills: - Excellent C# programming ability - Must have extensive experience working on an OMS or related/similar platforms (EMS, PMS, booking, processing etc) - FIX experience essential - Extensive More ❯

for any application - even if this is via personal projects, It doesn't need to be commercial experience. Core technologies utilised in this team - C#, F#, TypeScript, SQL Server The Senior Software Developer is likely to have a relevant degree in Computer Science or similar subject and … policy with no requirement to visit an office. Essential experience: Functional programming experience or a vested interest in functional programming even in personal projects C# SQL Web application development Experience in any of the following areas would be advantageous F#, Haskell or similar functional programming language Functional programming in … C# Domain driven design Language-ext Property-based testing Domain specific languages TypeScript Healthcare or medical industry experience If you are seeking a role of this nature, please get in touch for more information. More ❯

Senior Client Developer (Unity C#) Join Offroad Games, a fresh, London-based game studio founded by ex-Space Apes Games. We’re running two live games and tackling exciting technical challenges. You’ll be right in the action, working closely with the team on Chrome Valley Customs … at least one launched mobile title. Strong teamworking skills but also can work independently on tasks with minimal guidance. Be a flexible game developer and be ready to give feedback and suggestions on anything we create. Have the drive to make fun and engaging game mechanics with great More ❯

TrueNorth are working with a growing fintech startup organisation who are looking for another Full Stack Developer to join the team. They have developed a popular and successful SAAS expense management platform, and are looking for a new engineer to focus on improving the platforms usability and building … sound of a fast paced startup, a natural problem solver and someone that is keen to make an impact. Their current tech stack is C# ASP.Net MVC however a move to .Net Core is on the horizon. The successful candidate must be okay with working with ASP.Net MVC pending … process - so it's a great platform to expand on these skills. Key skills and experience required: Minimum 6 months of commercial experience in C# web development (either ASP.Net MVC or Core) Entity Framework Javascript Cross browser web applications with mobile friendly UIs APIs (RESTful beneficial) Beneficial: Single page More ❯

Gas & Power IT Developer | Energy Trading | .NET, C#, Oracle PL/SQL, MiFID & EMIR | 6 Months Rolling | Up to £800 p/day | Inside IR35| Hybrid – London A Power & Gas IT Developer is needed to join a growing Commodities Trading company, working on end-to … on building and supporting cutting-edge applications for the expanding Gas & Power trading desk , with a strong emphasis on Oracle PL/SQL , .NET, C# , and desktop-based development . This is a greenfield project, working directly with traders and middle office stakeholders, shaping the future of the European … IT Developer role is paying up to £800 per day, Inside IR35 🚂 Hybrid working: 3 days a week from Central London 🧑‍💻 .NET, C#, Oracle PL/SQL, RabbitMQ, MiFID, EMIR, and ENDUR Key Responsibilities: Design, develop, and maintain front-to-back trading applications using .NET (C# More ❯

ll need to be prepared to get your hands dirty with this problem-solving aspect of the job. You’ll be working primarily with C#, React and SQL for some of the older platforms. The key focus is that you’ve got a few years development experience with C# More ❯

Senior C# & React Full Stack Developer | ⚡ Front Office Trading House | 💷 £130,000 + Bonus | 🏙️ London | 🧑‍💻 3 Days in Office A London-based Hedge Fund is on the lookout for a Senior Full Stack Developer with strong React (Front End) and C# (Back End) skills … team building software used both internally by traders and externally as a SaaS product Leverage the latest tech in a modern, agile environment: React.JS , C# , TypeScript , CI/CD , DevOps 💰 Compensation : £130,000 base salary + strong bonus 📍 Location : Central London (Hybrid – 3 days in-office ) 📈 Impact : Direct exposure … to trading strategies , real-time systems , and mission-critical apps. 🔧 Tech Stack & Requirements: ✅ 6+ years of hands-on coding in C# and React 🎯 Experience designing modern event-driven UIs 🧠 SQL Server/MongoDB/PostgreSQL (or similar) 🛠️ Strong grasp of CI/CD pipelines and Agile delivery 🌐 Skilled in More ❯

crucial role in creating high-quality, scalable, and resilient solutions while mentoring junior team members and supporting existing initiatives. Responsibilities: Create and adapt new C#/.NET Core services to meet evolving business requirements. Mentor and coach existing team members through pair programming , peer reviews , and team talks , helping … them improve their C#/.NET Core skills. Support and enhance current systems and initiatives during office hours, ensuring that service level objectives are met. Maintain a strong focus on quality, reusability, clean architectures, security, and resilience across the full application lifecycle. Collaborate with the Lead Developer … of an agile and self-improving team. Strong diagnostic skills and experience providing levels of support when issues arise. Extensive experience ( 5+ years ) with C# and .NET Core . Deep understanding of Object-Oriented (OO) concepts and SOLID design principles . Proven experience developing in Microsoft Azure and using More ❯

160k + Bonus Location : London (Hybrid) Sells : Cutting-edge tech, front office facing, technically challenging My client is looking for the top 1% of C# Software Developers with Fixed Income experience to join their team! You will be integral in designing and building slick and complex enterprise-grade applications More ❯

+ Bonus Location : London (Hybrid) Sells : Cutting-edge tech stack, front office facing, technically challenging My client is looking for the top 1% of C# Software Developers with Fixed Income experience to join their elite team! You will be integral in designing and building slick and complex enterprise-grade More ❯

We are currently partnered with a leading international reinsurance business seeking a skilled C# Full Stack Developer to join their technology team based in Bermuda . This is a rare opportunity to relocate to a dynamic financial hub and contribute to high-impact software solutions within a … world-class reinsurance environment. Key Requirements: 5+ years of professional C# development experience , including substantial work in the reinsurance or insurance sector . Strong command of SQL and experience working with SQL Server . Proven web development background with Blazor and PowerBI . Experience with Julia (even limited) would More ❯

considered, you’ll need: Real-world experience with LLMs and agentic frameworks (OpenAI, LangChain, AutoGen, Semantic Kernel). Strong software engineering background (.NET/C# and Azure). A builder’s mindset - experimental, action-biased, and commercially aware. There is also strong intention for this role to become permanent More ❯