1 to 25 of 38 C# Developer Jobs in London

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 … minimum 2.1 in a STEM 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 a strong knowledge of SQL … entrepreneurial with good business acumen, keen to take ownership and lead projects You're collaborative, enjoy problem solving and sharing ideas What's in it for you: As a C# Developer/Software Engineer you will earn a competitive package: Salary to £180k Significant bonus earning potential Fund performance share Personal training budget and mentoring Family friendly 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 … minimum 2.1 in a STEM 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 a strong knowledge of SQL … entrepreneurial with good business acumen, keen to take ownership and lead projects You're collaborative, enjoy problem solving and sharing ideas What's in it for you: As a C# Developer/Software Engineer you will earn a competitive package: Salary to £180k Significant bonus earning potential Fund performance share Personal training budget and mentoring Family friendly More ❯

C# Developer Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary Negotiable, DoE, plus company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have been a resident in the UK for a … track unsafe products Powering systems that help the government monitor and reduce greenhouse gas emissions from commercial transport Role Summary Triad Group Plc is seeking a skilled and experienced C# Developer to join our dynamic team. As a Developer, you will be responsible for designing, developing, and maintaining software applications using .Net Core with associated … forefront of solving complex problems, contributing to a culture of innovation that has been the hallmark of Triad's 35-year success story. Key Responsibilities: Design, develop, and maintain C# applications, components, and systems. Write clean, efficient, and maintainable code following best practices and coding standards. Collaborate with cross-functional teams including designers, product managers, and other developers to More ❯

C# Developer Onsite Working Financial Services Lorien's leading Investment client are looking for a C# Developer to join them on a contract basis on an 6-month contract. We are looking for a strong C# Developer who has experience of working within Investment Banking environments with strong communication skills. This More ❯

Senior C# Developer - Commodities Trading - Outside IR35 Exciting opportunity for an experienced senior developer to build on their experience in Commodities or similar trading development role in this successful Commodities Trading company. £750 - 800 per day Outside IR35 The Senior C# Developer will have significant prior experience as a Senior Software Engineer …/Senior Developer working as C# Developer in a Commodities trading environment where they will have gained knowledge of the full trade life-cycle and feel comfortable speaking directly to traders and senior stakeholders in the business as well as senior technical colleagues such as architects. Central London location, with Hybrid working expected. Very strong … core skills in C# are expected Good knowledge of Commodities Trading is also required. Please apply now if your curious to learn more, for a confidential discussion about the role and company Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy. More ❯

Senior C# Developer Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary Negotiable, DoE, plus company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have been a resident in the UK for … unsafe products Powering systems that help the government monitor and reduce greenhouse gas emissions from commercial transport Role Summary Triad Group Plc is seeking a skilled and experienced Senior C# Developer to join our dynamic team. As a Senior Developer, you will be responsible for designing, developing, and maintaining software applications using .Net Core with … forefront of solving complex problems, contributing to a culture of innovation that has been the hallmark of Triad's 35-year success story. Key Responsibilities: Design, develop, and maintain C# applications, components, and systems. Write clean, efficient, and maintainable code following best practices and coding standards. Collaborate with cross-functional teams including designers, product managers, and other developers to More ❯

FDM is a global business and technology consultancy seeking a C# Developer to work for our client within the advisory and consultancy sector. This is initially an 8-month contract with the potential to extend and will be a remote role with occasional trips to London. Our client is looking for a C# Developer … adhered to Adopt a continuous learning and improvement mentality, promoting an innovative culture, staying up to date with trends Build and maintain early-stage product ideas/concepts using C# and .NET Contribute to full stack development using React for front end work while integrating AI driven features Requirements Minimum of 5 years’ experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD Good knowledge of IT industry trends (especially GenAI and AgenticAI), suppliers, platforms and products Post productions MLOps, Model retaining and Drift monitoring in Azure with knowledge of More ❯

C# DEVELOPER Commodities Trading firm is looking to grow their business and are hiring a Senior .NET Developer due to significant growth across their Front Office team. This is an extremely rare opportunity to break into the world of high-finance, trading and few and far between. £120-150k package This is an experienced … role within the team and the C# Developer will be expected to understand complex technical solutions and deliver in an Agile/SCRUM/Kanban environment. Requirements: C# - ESSENTIAL FRONT-END - VUE or similar - preferred AZURE - preferred TRADING - preferred The role is hybrid working, 2 days in lovely central London offices. Free cooked or contintal breakfast More ❯

Angular C# .NET Developer Hybrid/London Contract (6-12 months) Competitive daily rate Leading IT Consultancy with offices in UK and Europe (Netherlands, Belgium and Switzerland) is looking to recruit a permanent Senior Angular C# .Net Developer . We deliver a range of services from IT Consultancy, Software Project Development and Application Support … Services for our corporate clients covering Insurance, Retail, FMCG, Automotive, Logistics & Leasing, Publishing and Charity domains (including UN organizations) which are well-known names. This Angular C# .NET Developer is a contract role for minimum 6-12 months and has a hybrid work schedule, split between Working from Home and 2 days per week on site in … London. The role is open for permanent applications too. Key Requirements for Angular C# .NET Developer: 5+ years of commercial experience in C# .NET development essential Minimum 2 years experience with Angular (v.10+) - mandatory Rest APIs incorporated with SQL Server or Sybase DB - mandatory Good analysis skills and experience working with data (i.e. to identify and More ❯

Full Stack Software Developer, C# .NET, Remote, £425 day rate, Outside IR35, COR7373 We’ve looking for an experienced Full Stack Software Developer for a 6 month contract role available immediately. This role is fully remote and outside IR35, offering a day rate of up to £425. Candidates must live and be eligible to work … in the UK. As a Full Stack Software Developer, you will be responsible for developing and maintaining software solutions using C# and .NET Core, ensuring high-quality code and adherence to best practices. What’s required of the Full Stack Software Developer? Proven experience developing full stack applications with C# and .NET Core Experience … user interface design What Next? If you’re an experienced Full Stack Software Developer available immediately, apply today to learn more! Full Stack Software Developer, C# .NET, Remote, £425 day rate, Outside IR35, COR7373 Corriculo Ltd acts as an employment agency and an employment business. #AS More ❯

Are you a budding C# developer with a passion for finance and clean code? Join a prestigious asset manager in the heart of the City of London, where you'll help build and maintain internal financial applications that power investment decisions across global markets. You must demonstrate 1 - 3 year's minimum C# development experience. About … the Role As a Junior C# Developer, you’ll work closely with experienced engineers and portfolio managers to develop robust, scalable tools that support trading, risk analysis, and portfolio management. This is a fantastic opportunity to deepen your technical skills while gaining exposure to the inner workings of financial services. Key Responsibilities • Develop and maintain internal applications … using C#, .NET, and SQL Server • Collaborate with business analysts and stakeholders to gather requirements • Write clean, testable code and participate in code reviews • Support and enhance existing systems used by investment teams • Contribute to the evolution of the firm’s technology stack Requirements • Degree in Computer Science, Engineering, or a related field • Solid understanding of C# and More ❯

C# Fullstack Developer Our investment bamkng client is looking for a highly skilled C# Fullstack Developer to join their London baseed team in a permananent capacity. Overview: We are seeking a highly skilled C# Fullstack Developer with experience in investment banking or large-scale enterprise environments. This role involves working closely … and maintain fullstack applications using modern technologies. Contribute to DevOps processes and CI/CD pipelines. Work with large data models and multithreaded systems. Essential Skills: Strong proficiency in C# and backend development. Frontend experience with Angular and AG Grid . Solid understanding of SQL Server and database design. Familiarity with Jenkins or other DevOps tools. Ability to build More ❯

Senior C# .NET Developer Mayfair, London - Hybrid (1 - 2 days per week in the office) £68,000 - £72,000 per annum The Role We’re hiring a backend C# .NET Developer to join our engineering team in a hybrid role (1 - 2 days per week in the office). You’ll help build and … that support searching , order processing , and background processes with a strong focus on both application logic and data access . This role is ideal for someone confident in both C#/.NET development and SQL , and who enjoys working on clean, maintainable code and performance-optimised database logic. What You’ll Be Working On: Designing and building backend services … Telemetry and Grafana for logs, metrics, tracing, and alerting across backend services. Contributing to technical design discussions, code reviews, and deployments. What We’re Looking For: Strong experience in C#/.NET backend development. Solid understanding of data modelling, indexing, and performance tuning. Skilled in writing and optimising complex SQL queries and stored procedures. Experience building and maintaining APIs More ❯

Senior C# .NET Developer Mayfair, London - Hybrid (1 - 2 days per week in the office) £68,000 - £72,000 per annum The Role Our client is hiring a backend C# .NET Developer to join their engineering team in a hybrid role (1 - 2 days per week in the office). You’ll help build … that support searching , order processing , and background processes with a strong focus on both application logic and data access . This role is ideal for someone confident in both C#/.NET development and SQL , and who enjoys working on clean, maintainable code and performance-optimised database logic. What You’ll Be Working On: Designing and building backend services … Telemetry and Grafana for logs, metrics, tracing, and alerting across backend services. Contributing to technical design discussions, code reviews, and deployments. What They’re Looking For: Strong experience in C#/.NET backend development. Solid understanding of data modelling, indexing, and performance tuning. Skilled in writing and optimising complex SQL queries and stored procedures. Experience building and maintaining APIs More ❯

Software Engineer Workday Certified Developer C# API Integrations Contract Workday Studio EIBs Core Connectors REST APIs HRIS Remote SR2 is working with a consultancy client on a large-scale Workday implementation and looking for an experienced Workday Certified Developer with strong C# and API integration expertise. This role will focus on designing, building, and … development and architectural input. Key Responsibilities: Design, develop, and deploy Workday integrations using Workday Studio, Core Connectors, and EIBs Build and maintain robust integrations with third-party applications using C# and REST/SOAP APIs Collaborate with HRIS, business, and technical teams to define and deliver integration requirements Provide technical expertise and best practice guidance for Workday integration architecture … disruption Produce clear documentation and provide knowledge transfer to internal teams Skills & Experience Required: Workday Integration Certification Strong experience with Workday Studio, EIBs, and Core Connectors Proven background in C# development in integration-heavy environments Hands-on experience with REST/SOAP APIs , XML, JSON, and XSLT Strong communication skills and ability to work in a global, distributed environment More ❯

Junior bright C# .NET Software developer Bank This is a new and exclusive opportunity for a bright junior C# .NET Software developer to join a thriving Fixed Income team in an Investment Bank Role details Title: Software Developer/application developer Technical stack: C# .Net Banking knowledge- Front Office … Banking Permanent role, salary £40-70,000 Location: London City with home working hybrid 2/3 days flexible Requirements: strength in C#.NET, Understanding of Fixed Income As the C# .NET Software developer, you will be developing in the Front Office Fixed Income Banking team and liaise with Fixed Income business to make sure the Technology stack … requirements, growth demand and regulatory obligations. The Front office (Fixed Income) software development team requires an agile and versatile specialist and team player with extensive expertise in .Net/C# software. This role is a key delivery team member for the Front Office/Fixed Income Business in EMEA. Working with the Product Owner and the development team, it More ❯

Junior bright C# .NET Software developer Bank This is a new and exclusive opportunity for a bright junior C# .NET Software developer to join a thriving Fixed Income team in an Investment Bank Role details Title: Software Developer/application developer Technical stack: C# .Net Banking knowledge- Front Office … Banking Permanent role, salary £40-70,000 Location: London City with home working hybrid 2/3 days flexible Requirements: strength in C#.NET, Understanding of Fixed Income As the C# .NET Software developer, you will be developing in the Front Office Fixed Income Banking team and liaise with Fixed Income business to make sure the Technology stack … requirements, growth demand and regulatory obligations. The Front office (Fixed Income) software development team requires an agile and versatile specialist and team player with extensive expertise in .Net/C# software. This role is a key delivery team member for the Front Office/Fixed Income Business in EMEA. Working with the Product Owner and the development team, it More ❯

C# Developer - trade capture/commodities - sought by leading firm based in London - Contract - Hybrid *outside iR35* What You'll Be Doing Designing and developing enterprise-grade solutions in an Agile team. Building and maintaining middleware services using C# , REST APIs , FIX messaging , XML , and Microservices . Leading architecture discussions, code reviews, and release management. Collaborating … in Computer Science, Engineering, or a related field. Proven experience in commodities trading , especially with derivatives and platforms like ICE , CME , NASDAQ , Trayport , or TT . Deep knowledge of C# .NET , RESTful services , and microservice architecture . Hands-on experience with FIX messaging , XML , AMQ , and ideally nHibernate , OData , and TDD . Familiarity with Agile tools like JIRA , Confluence More ❯

C# Developer - trade capture/commodities - sought by leading firm based in London - Contract - Hybrid *outside iR35* What You'll Be Doing Designing and developing enterprise-grade solutions in an Agile team. Building and maintaining middleware services using C# , REST APIs , FIX messaging , XML , and Microservices . Leading architecture discussions, code reviews, and release management. Collaborating … in Computer Science, Engineering, or a related field. Proven experience in commodities trading , especially with derivatives and platforms like ICE , CME , NASDAQ , Trayport , or TT . Deep knowledge of C# .NET , RESTful services , and microservice architecture . Hands-on experience with FIX messaging , XML , AMQ , and ideally nHibernate , OData , and TDD . Familiarity with Agile tools like JIRA , Confluence More ❯

Full-Stack Developer (C#/React) London | Hybrid (3 days per week) | £80,000 to £90,000 base + bonus Ncounter are supporting a high-performing technology team as they expand their web engineering capability and continue to modernise the platforms that power real-time digital marketplaces. We’re looking for experienced Full-Stack Developers who enjoy … driven applications, with a focus on reliability, modularity, and scalability across both front-end and back-end services. In the role you will: • Build and enhance web applications using C# (.NET 8) and React with TypeScript • Design reusable components and frameworks to accelerate product delivery • Collaborate closely with other engineers to define solutions and solve complex technical challenges • Contribute … mentoring within the team • Take ownership of quality, testing, and continuous delivery improvements We’re looking for: • Strong hands-on experience across modern web technologies and frameworks • Proficiency in C# or an equivalent object-oriented language, plus React or similar JavaScript frameworks • A genuine interest in clean code, developer experience, and team-wide collaboration • Someone curious, pragmatic More ❯

Length of Contract: 6 Months Pay Rate: £500-£700 PWD Umbrella Hybrid Model: 2-3 days in the office Overview We're seeking a Reporting Analyst Developer (C#) to join a leading financial institution's IT team, working within the Trade and Transaction Reporting (TTR) area. This is an exciting opportunity for an experienced developer … paced environment. Key Responsibilities: Develop, enhance, and maintain regulatory reporting systems to support business and compliance needs. Design and deliver high-quality, efficient, and scalable software using .NET/C# and SQL . Collaborate closely with the Regulatory Reporting business teams to ensure the technology stack meets current and future requirements. Participate in Agile ceremonies (Scrums, Sprints, Releases) and … risk, and regulatory initiatives across the EMEA region. Promote a collaborative, inclusive, and high-performing team culture. Key Skills & Experience: Strong hands-on development experience in .NET Core and C# . Advanced knowledge of SQL/T-SQL and data modelling. Experience working within the financial services or regulatory reporting domain preferred. Strong analytical, problem-solving, and communication skills. More ❯

Length of Contract: 6 Months Pay Rate: £500-£700 PWD Umbrella Hybrid Model: 2-3 days in the office Overview We're seeking a Reporting Analyst Developer (C#) to join a leading financial institution's IT team, working within the Trade and Transaction Reporting (TTR) area. This is an exciting opportunity for an experienced developer … paced environment. Key Responsibilities: Develop, enhance, and maintain regulatory reporting systems to support business and compliance needs. Design and deliver high-quality, efficient, and scalable software using .NET/C# and SQL . Collaborate closely with the Regulatory Reporting business teams to ensure the technology stack meets current and future requirements. Participate in Agile ceremonies (Scrums, Sprints, Releases) and … risk, and regulatory initiatives across the EMEA region. Promote a collaborative, inclusive, and high-performing team culture. Key Skills & Experience: Strong hands-on development experience in .NET Core and C# . Advanced knowledge of SQL/T-SQL and data modelling. Experience working within the financial services or regulatory reporting domain preferred. Strong analytical, problem-solving, and communication skills. More ❯

An Investment Banking client is currently seeking a C# Developer with Commodities business experience to join their Front office IT Team.The initial contracts will be for 6 months rolling paying £750pd via an Umbrella company. The Bank is Based in the City of London and has a Hybrid working policy of 2-3 days in office.Required experience … Extensive C# Development experience Moderate/Low level C++ knowledge Previous exposure to commodity derivatives Please share an updated CV ASAP if you'd like to be considered for the position and I'll be in touch if suitable. Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic More ❯

An Investment Banking client is currently seeking a C# Developer with Commodities business experience to join their Front office IT Team. The initial contracts will be for 6 months rolling paying £750pd via an Umbrella company. The Bank is Based in the City of London and has a Hybrid working policy of 2-3 days in office. … Required experience: Extensive C# Development experience Moderate/Low level C++ knowledge Previous exposure to commodity derivatives Please share an updated CV ASAP if you'd like to be considered for the position and I'll be in touch if suitable. Please click here to find out more about our Key Information Documents. Please note that the documents provided More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage, and … customers by delivering inbound experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position to make decisions about what should be created, and … roles would be suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, Linux, C# or Java; which might have been acquired as part of your degree course or through a placement year in industry. At the center of our client's culture is More ❯