1 to 25 of 55 C# Developer Jobs in London

C# Developer/Software Engineer (.Net SQL) London/WFH to £85k Are you a data savvy C# Developer with strong SQL skills combined with a good understanding of finance/trading systems? You could be progressing your career and gaining valuable finance experience … at a hugely successful Hedge Fund, working on complex and interesting systems with continual learning opportunities. As a C# Developer you'll join a small, Agile team to design, develop and support the Portfolio Management systems. You'll be collaborating with Front Office users and will gain … a good understanding of financial trading systems, working with modern tech across the full stack from SQL/Oracle, C# .Net Core on the backend through to Angular and TypeScript on the frontend, with a bias towards backend development. There's a range of projects from a couple of More ❯

C# Developer/Software Engineer (.Net SQL) London/WFH to £85k Are you a data savvy C# Developer with strong SQL skills combined with a good understanding of finance/trading systems? You could be progressing your career and gaining valuable finance experience … at a hugely successful Hedge Fund, working on complex and interesting systems with continual learning opportunities. As a C# Developer you'll join a small, Agile team to design, develop and support the Portfolio Management systems. You'll be collaborating with Front Office users and will gain … a good understanding of financial trading systems, working with modern tech across the full stack from SQL/Oracle, C# .Net Core on the backend through to Angular and TypeScript on the frontend, with a bias towards backend development. There's a range of projects from a couple of 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 ❯

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 : C# Developer – Elite Trading Firm (up to £130K + Bonus + Hybrid) Client : Elite Trading Firm Salary : Up to £130,000 + performance-based bonuses Location : London/Hybrid Roles and Responsibilities : We are partnering closely with an Elite Trading Firm who are looking for … a C# Developer to work on building out their 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 C# Developer, you will play a … with top-tier infrastructure teams in the financial sector. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a C# Developer. 4+ years of work experience in a relevant role such as software or quant development or technology. Proficiency in modern software development practices More ❯

Job Title : C# Developer – Elite Trading Firm (up to £130K + Bonus + Hybrid) Client : Elite Trading Firm Salary : Up to £130,000 + performance-based bonuses Location : London/Hybrid Roles and Responsibilities : We are partnering closely with an Elite Trading Firm who are looking for … a C# Developer to work on building out their 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 C# Developer, you will play a … with top-tier infrastructure teams in the financial sector. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a C# Developer. 4+ years of work experience in a relevant role such as software or quant development or technology. Proficiency in modern software development practices More ❯

Contract SQL/C# Developer - Energy Trading £700/day OUTSIDE IR35 Hybrid Working Our client is seeking an experienced Contract SQL/C# Developer to join their team, working on complex projects with cutting-edge technologies. This hybrid role requires you to be … in the office 2 days a week, providing the perfect blend of collaborative and flexible working environments. Required Skills: Microsoft .Net and C# Microsoft SQL Server 2019 and above, including: SQL Server Integration Services (SSIS) SQL Server Analysis Services (SSAS) - Multi-Dimensional and Tabular SQL Server Reporting Services (SSRS … forward-thinking company that values innovation and creativity. Collaborate with a team of talented professionals in a supportive and dynamic environment. Contract SQL/C# Developer - Energy Trading More ❯

Contract SQL/C# Developer - Energy Trading £700/day OUTSIDE IR35 Hybrid Working Our client is seeking an experienced Contract SQL/C# Developer to join their team, working on complex projects with cutting-edge technologies. This hybrid role requires you to be … in the office 2 days a week, providing the perfect blend of collaborative and flexible working environments. Required Skills: Microsoft .Net and C# Microsoft SQL Server 2019 and above, including: SQL Server Integration Services (SSIS) SQL Server Analysis Services (SSAS) - Multi-Dimensional and Tabular SQL Server Reporting Services (SSRS … forward-thinking company that values innovation and creativity. Collaborate with a team of talented professionals in a supportive and dynamic environment. Contract SQL/C# Developer - Energy Trading 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 ❯

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 ❯

Tech Lead/Senior Developer (C#/React/Azure) – London/Hybrid £80,000-£85,000 My client is looking for a Tech Lead (or a Senior Developer with line management experience) to join their expanding team and help continue the innovation of their … and managing its delivery · Improve ways of working and overall outputs of the software Essential Requirements · Demonstrated success in line management · Extensive experience with C# .NET and JavaScript (React/Typescript) · Extensive experience in solutions architecture and technical leadership roles, with knowledge of software development across multiple platforms · Leadership More ❯

Tech Lead/Senior Developer (C#/React/Azure) – London/Hybrid £80,000-£85,000 My client is looking for a Tech Lead (or a Senior Developer with line management experience) to join their expanding team and help continue the innovation of their … and managing its delivery · Improve ways of working and overall outputs of the software Essential Requirements · Demonstrated success in line management · Extensive experience with C# .NET and JavaScript (React/Typescript) · Extensive experience in solutions architecture and technical leadership roles, with knowledge of software development across multiple platforms · Leadership 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 ❯

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 ❯

Role: Contract C# .NET Developer Domain: Commodities trading Day rate: £700-750/d (outside IR35) Location: London (hybrid - 3 days per week) Contract: 12 months (strong extension scope) X4 Technology are partnered with a well-backed commodity trading firm in London offering an exciting outside IR35 … contract opportunity for an experienced C# .NET Developer . You'll play a key role in a major tech transformation, evolving their core trading systems to a scalable data-first model - with a focus on performance, scalability, resilience and smarter system integration. You’ll be integral to … charge in adopting best practices in software engineering across the .NET ecosystem. Responsibilities of the Contract .NET Developer (Commodities) Designing and developing C# .NET Core applications supporting real-time trading workflows and analytics. Developing and consuming RESTful and gRPC APIs in a microservices environment. Building distributed, event More ❯

Role: Contract C# .NET Developer Domain: Commodities trading Day rate: £700-750/d (outside IR35) Location: London (hybrid - 3 days per week) Contract: 12 months (strong extension scope) X4 Technology are partnered with a well-backed commodity trading firm in London offering an exciting outside IR35 … contract opportunity for an experienced C# .NET Developer . You'll play a key role in a major tech transformation, evolving their core trading systems to a scalable data-first model - with a focus on performance, scalability, resilience and smarter system integration. You’ll be integral to … charge in adopting best practices in software engineering across the .NET ecosystem. Responsibilities of the Contract .NET Developer (Commodities) Designing and developing C# .NET Core applications supporting real-time trading workflows and analytics. Developing and consuming RESTful and gRPC APIs in a microservices environment. Building distributed, event More ❯

A Proprietary Trading firm in London is seeking a talented Senior C# Developer to join their trading and execution team. This new role has been created due to the company’s strong performance and internal growth, offering a fantastic opportunity for someone that really enjoys working with … with the team to improve operational workflows and user experience. Key Requirements: Degree in Computer Science or a related scientific field. Strong experience in C# and the .NET platform. Experience in building or maintaining trading and data analytics platforms. Good database experience, including SQL Server, Oracle, or similar. Knowledge More ❯

A Proprietary Trading firm in London is seeking a talented Senior C# Developer to join their trading and execution team. This new role has been created due to the company’s strong performance and internal growth, offering a fantastic opportunity for someone that really enjoys working with … with the team to improve operational workflows and user experience. Key Requirements: Degree in Computer Science or a related scientific field. Strong experience in C# and the .NET platform. Experience in building or maintaining trading and data analytics platforms. Good database experience, including SQL Server, Oracle, or similar. Knowledge More ❯

us with problems that need genuine thought, intelligence and knowledge; we're not just putting bodies on seats. We are seeking a highly skilled C# Developer with a strong background in asset management or investment banking. The ideal candidate will possess expert-level proficiency in C# … Forms and front-end development frameworks such as Angular will be considered advantageous. Key Responsibilities: Design, develop, and maintain high-quality software applications using C# and .NET technologies (both .NET Framework 4.8 and .NET 8). Collaborate with cross-functional teams to gather and analyze business requirements and translate … Conduct code reviews and provide technical guidance to junior developers. Troubleshoot and debug applications to ensure optimal functionality and performance. Expert level developing in C#/.NET (.NET Framework 4.8 + .NET 8) Strong SQL experience (SQL Server and PostgreSQL) Experience with Kafka Windows Forms (.NET Framework) (Nice to 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 ❯

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 ❯

Job title: Quantitative Developer (C#) Client: Scientific Quant Fund Salary: Up to £140,000 Base (+ Bonus) Location: London The role: My client are seeking a talented Quantitative Developer to help build out high performance pricing and risk platforms. As a Quantitative Developer … research and trading to shape how this team will operate for years to come. You will have: 4+ Years experience as a Quantitative Developer (or related field like Software Engineering). 4+ Years experience using C#. Experience using Python - preferable. Experience with Commodities - preferable. Experience working in a … managers to deliver effective solutions. Develop and maintain desktop, web, and Python-based pricing platforms for trading operations. If you are a Quantitative Developer, please apply directly or email rdelaney@hunterbond.com for more information. More ❯

Job title: Quantitative Developer (C#) Client: Scientific Quant Fund Salary: Up to £140,000 Base (+ Bonus) Location: London The role: My client are seeking a talented Quantitative Developer to help build out high performance pricing and risk platforms. As a Quantitative Developer … research and trading to shape how this team will operate for years to come. You will have: 4+ Years experience as a Quantitative Developer (or related field like Software Engineering). 4+ Years experience using C#. Experience using Python - preferable. Experience with Commodities - preferable. Experience working in a … managers to deliver effective solutions. Develop and maintain desktop, web, and Python-based pricing platforms for trading operations. If you are a Quantitative Developer, please apply directly or email rdelaney@hunterbond.com for more information. 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 ❯

Job Description Senior Lead C# Software Developer We urgently require a Senior C# Lead Developer with at least 5 to 10 years solid expertise in developing financial systems ideally banking systems. Your experience should include extensive knowledge of developing complex financial systems in C# More ❯