1 to 25 of 44 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 ❯

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 ❯

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 ❯

C#/.Net, Risk, Credit, Containers, Greenfield, Leadership, Multithreading, Distributed Systems McGregor Boyall are looking for a Lead C# engineer to join a quantitative hedge fund that's reimagining their risk infrastructure. In this role, you will be architecting high-throughput systems processing massive data volumes with millisecond … Your expertise in performance tuning, async patterns, and database optimization would directly impact investment decisions across billions in assets. The tech stack centers on C# with T-SQL, with opportunities to work with AWS/Kubernetes and create Python integrations. This role requires applicants to work 4 days onsite … in London. Requirements: - 8+ years experience as a C#/.Net Developer working within financial services - Clear and demonstratable experience working within financial risk (xVA, cVA, PnL, VaR etc) - Recent experience working as a hands-on technical lead (minimum 2 years) - Solid knowledge of distributed systems Nice 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 ❯

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 ❯

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 of developing with C# … pricing APIs. Maintaining the company's daily operation on the existing platforms. Essential skills: - Minimum 3 to 5 years experience of Microsoft web technologies (C#, ASP.NET Core MVC) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders: sales, brokers, middle office, external vendors. Ability to produce More ❯

Job Description Senior Technical Java and C# .net Software Developer We are currently recruiting a Java with C# .net Senior Software Developer - who can be the lead in the team. You must have at least 5 to 7 years proven track record of developing … software with Java and C# .net framework coupled with SQL Server. Ability to own and drive forward Omni channel technical solutions and technical architecture from an IT perspective (with direction from Head of IM, Consumer & Brands) o Ownership of FM Digital Technical architecture including the ongoing review of overall … tactics associated with the designs. Role-specific knowledge: • 5+ years of senior technical lead. • 5+ years of strong hands-on experience as a developer working on JAVA or .NET Framework standards and technologies - C#.NET, ASP.NET, AngularJS, SQLServer, Web Services, Cloud Platforms, AJAX, JQUERY, XML/JSON, HTML, CSS More ❯

Job Description Software Developer with C# .Net SQL Server and RPG Role Description This is a full-time hybrid role based in London, offering flexibility for remote work. As a Software Developer with expertise in C# .NET, SQL Server, and RPG, your responsibilities will … would like you to have a background in working for a bank working on Core Banking systems along with BAU and developing solutions in C# .net coupled with excellent SQL Server SSIS and RPG. Qualifications Proficiency in C# .NET, SQL Server, and RPG programming languages Experience in software More ❯

Job Description Senior Backend Developer with C# .net Framework Working as part of the Digital team, you'll be responsible for the ongoing development and improvements to an eCommerce website as well as other internal applications for this award-winning Travel Company. You will be responsible for … Leading the eCommerce web and application development from a technical perspective Collaborating with the front end developer and design resource to deliver improved UI & UX A problem solver - you'll need to be able to analyse and suggest improvements to existing website features Analysing and identifying ways … to automate processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET, C#, HTML, JavaScript, jQuery, React Framework, MS SQL Server, Mongo DB, Elasticsearch Understanding of SOLID development principles Worked previously on projects using the Umbraco CMS More ❯