1 to 25 of 133 Permanent 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 ❯

your specialist capabilities ready to work on our clients' projects. What we're looking for. To be successful for this role you will demonstrate a level of ability in C#, Java or similar. You will be passionate about technology and eager to learn full stack programme development to an advanced level. We're seeking candidates who can exemplify our More ❯

together. If you want to advance the world of fintech, we’d like to ask you: Are you FIS? About the role: We are looking for an experienced Senior C# .NET Developer to help grow and enhance our PTP software platform. The candidate will work on strategic enhancements to the platform as well as on client implementation … Platform is a leading-edge, cloud-based Securities Processing solution that provides trade lifecycle processing for a wide range of global financial institutions. About the team: As a Senior C# .NET Developer, you’ll be part of our PTP Platform development group. The group is broken into smaller scrum teams that each hold responsibility for a key … of system functionality. You’ll become involved with all phases of the development lifecycle and take ownership of key functional areas. What you will be doing: As a Senior C# .NET Developer, you will be involved in: Analysis of user requirements and translation into solution design using the most appropriate technique for the job (including mockups and More ❯

C# DevOps Engineer Location: Hybrid (Hammersmith) – 2 days/week onsite Salary: £70,000 About the Role We’re looking for a passionate DevOps Engineer to join a dynamic digital team. In this role, you’ll support and manage production and non‐production environments across a digital estate and oversee deployment pipelines. You’ll work closely with developers, service More ❯

JUser: :_load: Unable to load user with ID: 987 Job Summary Ambitious C# Developer looking to level-up! Ambitious C# Developer looking to level-up! Ambitious C# Developer looking to level-up! Posted Friday, 24 March 2017 Ambitious C# Developer looking to level-up! Are you a C# … the heart of Shoreditch? Yes, then seriously consider applying for this; With continued ambition, expansion and demand, our established media client has a great opportunity for a go-getting C# Developer. From the outset you will be working on a range of web-based solutions and with many more projects coming online, you will be quickly expanding your skills … before long you will be voicing your own ideas, fleshing them out and if they’re good, getting them backed all the way! Right now you are comfortable with; C# SQL HTML CSS JQUERY SQL And soon after starting this role, you will be comfortable with; Web API IIS and Azure administration GIT/Bitbucket JIRA Google Analytics to More ❯

ad. Below is the anaemic version. Bonus points if you can find the more analeptic version. And provide proof of your quest. Good luck! The Junior Back End Developer will work for a fast-growing SaaS business in central London. The Junior Back End Developer will earn £35,000 per annum, and potentially more for exceptional … candidates. The Junior Back End Developer will be comfortable with hybrid working on a 4+1 basis. The … Junior Back End Developer will be part of a strong work/life balance culture. The Junior Back End Developer will be familiar with the C# .NET ecosystem. The Junior Back End Developer will have some understanding of Typescript, HTML and CSS. The Junior Back End Developer uses GitHub and is 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-end development focused 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 Gas & Power trading capabilities. You will be the go-to developer for all new initiatives … Rate on this Gas & Power 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#, WCF/WPF) and Oracle 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-end development focused 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 Gas & Power trading capabilities. You will be the go-to developer for all new initiatives … Rate on this Gas & Power 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#, WCF/WPF) and Oracle More ❯

Country: Austria Sector: Software Developer Hourly Rate: Euros 65 € per hour Job Type: Contract Technologies: Full Stack APONet aspnet WFP MVC MySQL C# Full Stack Developer/Vienna/German Endeavour Recruitment has an excellent contract opportunity for a German speaking Full Stack Developer to join a large IT Consultancy based in the More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Tech stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, J2EE, Agile, TDD, BDD) Since 2006, our client's revolutionary marketing software platform has been helping businesses worldwide to attract, engage, and delight customers by delivering relevant, helpful, and personalized inbound experiences. Having … recently launched in the UK, they are looking to hire a Graduate/Junior Developer (Python, Linux, C#, Java) to join their growing team. They believe that individual developers are best positioned to decide what should be created and how it should be built. Small teams of three or four developers own each part of the product … with technology and experience, embracing mistakes as part of the learning process. This role is suitable for recent graduates with a basic understanding of technologies such as Python, Linux, C#, or Java, acquired through university courses or placement years. The company's culture centers on freedom and openness, fostering a surprising and positive work environment. Benefits include: Private medical More ❯

or twice a week. The company was founded 7 years ago and has grown to 80 in Tech, 230 total. Description Work on Greenfield projects Write scalable code in C# Work closely with the Data team Reduce technical debt Drive the implementation of new technologies Data structuring Develop advanced algorithms Profile Must haves: Modern C# .NET 8/ More ❯

Technologies: C# WCF Entity Framework German Endeavour Recruitment has an exciting opportunity for a skilled C# Developer to join our insurance client on a long-term contract role. As the Insurance client is based in Vienna, there will be no IR35/Tax implications. The role is currently fully remote and the hope is to have … it 50% remote when things get back to normal. The Role: Senior C# Developer Very good knowledge: Entity Framework and/or WCF German speaking – Fluent Availability: May Location: Vienna/Currently Remote Sector: Insurance Rate: €55 per hour/roughly £50 per hour For more information, please don’t hesitate to apply. #J-18808-Ljbffr More ❯

months contract with a global manufacturing client. The C# developer will be involved in the development and architecture of applications and services that process local data and integrate third-party web services. The successful C# developer will have proven and demonstrable experience with application development using C#. The Role: Software architecture, design, and development More ❯

and is happy with 99% remote working. To be considered for this position, you will be a highly experienced MS full-stack .Net software developer. Skills will include Azure, C#, ASP.Net, .Net Core, MVC, SQL Server, SSRS, SSIS, PostgreSQL, Entity Framework, HTML, CSS, JavaScript, JQuery, and either Angular, React or Node (or similar). The successful candidate will have … client is offering a salary of circa £60,000 and the chance to work on exciting customer-driven projects using the latest development stack. If you are an experienced C# ASP.Net Full Stack Software Developer and you are looking for a new challenge, please send me your CV immediately More ❯

business needs. Adopt a systematic approach to all problem solving, allowing the firm to scale out. Minimum Requirements: A minimum of 3 years of experience as a software engineer. C# and Python Language Experience. Experience with React/MUI/AG-Grid/ECharts. Comfortable with SQL. Ability to multitask and work in a team. Excellent communication skills and More ❯

Social network you want to login/join with: Sr. C#.Net (core) developer to support support team in delivering bug/fixes, operational enhancements, and new functionality to existing in-house software, London col-narrow-left Client: S.i. Systems Location: London, United Kingdom Job Category: Other - EU work … permit required: Yes col-narrow-right Job Reference: ddd7fb030e85 Job Views: 3 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Our valued client is looking for a Sr. C# .Net (core) developer to support support team in delivering bug/fixes, operational enhancements, and new functionality to existing in-house software This is a remote opportunity … Solutions Support team(s) and contribute to Level 3 Support activities for Incident and Problem resolution as required Must have: 7+ years’ experience building APIs and web applications in C# (.netcore) 5+ years’ experience programming for SQL Server and EF Core 3+ years designing, coding, and testing single-page applications utilizing the Angular v4+ framework, utilizing Bootstrap v4/ More ❯

Social network you want to login/join with: Senior C# Developer/Engineer (C# .Net Core React) 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# … scratch. Location/WFH: You'll join colleagues in the London office Monday to Wednesday with flexibility to work from home Thursday and Friday. About you: You have strong C# .Net Core backend development experience You have a good knowledge of microservices and Cloud (AWS or Azure) experience, ideally you'll have some experience with Docker/Kubernetes, EKS More ❯

Social network you want to login/join with: col-narrow-left Client: S.i. Systems Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 949f7fad5f6f Job Views: 4 Posted: 29.06.2025 Expiry Date More ❯

actively keep this knowledge current. Adhere to Policies & Standards outlined in the Code of Conduct and mandatory training. Investigate and resolve production issues. Required Skills: Experience developing applications in C#, .NET, and .NET Core for server-side development. Experience building microservices and REST APIs. Proven experience with Agile methodologies (preferably Scrum/Kanban). Experience writing MSSQL/TSQL More ❯

Senior C# Developer - up to £750 per day Role Type : Contract Rate - Up to £750 P/D! Location – London/Hybrid Duration : 6 month rolling My client is a well-established and successful tech house working in the finance sector who are looking a talented senior C# Developer, with outstanding technical and communication … a greenfields project! This is a 6 month rolling Contract, with high possibility of extension, and can pay up to £750 P/D Requirements: Strong experience working with C#/.Net Strong experience with SQL - Ideally with SQL reporting tool (SSIS/SSRS etc) Experience working with Cloud Technologies (Azure preferred) Strong Communication skills with a drive to More ❯

Role Type : Contract Title – Senior C# Engineer Client – Established Financial Institution Rate - Up to £750 P/D! Location – London/Hybrid Duration : 6 month rolling My client is a well-established and successful tech house working in the finance sector who are looking a talented senior C# Developer, with outstanding technical and communication skills to … a greenfields project! This is a 6 month rolling Contract, with high possibility of extension, and can pay up to £700 P/D Requirements: Strong experience working with C#/.Net Strong experience with SQL - Ideally with SQL reporting tool (SSIS/SSRS etc) Front end experience a big plus! Experience working with Cloud Technologies (Azure preferred) Finance More ❯

Social network you want to login/join with: Sr. C# (.Net 8.0) developer to contribute to the delivery of new applications and to the maintenance and enhancement of existing applications, and be primarily responsible for technical issues, London col-narrow-left Client: S.i. Systems Location: London, United Kingdom Job Category: Other - EU work permit required: Yes … col-narrow-right Job Reference: 8b8ed3b5492d Job Views: 3 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Our valued client is looking for a Sr. C# (.Net 8.0) developer to contribute to the delivery of new applications and to the maintenance and enhancement of existing applications, and be primarily responsible for technical issues Tasks include: Contributes … cloud and on-prem) Must have: Minimum of five years’ experience in software application development with progressively senior roles related to Senior Application Development; Mastery of the following technologies: C# (.Net 8.0) Git REST APIs with JSON payloads OAuth 2.0 Thorough and detailed understanding of application performance issues and troubleshooting/tuning techniques; Proven familiarity with software architecture design More ❯

Software Developer/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 Software Developer you'll collaborate with a team of highly … 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 … care for elderly relatives Various social groups including sports teams Private healthcare and wellness activities Apply now to find out more about this Software Developer/Engineer (C# .Net SQL) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer More ❯

Senior C# Developer - Equity Derivatives Technology Risk (VP) - London Senior C# Developer - Equity Derivatives Technology Risk (VP) - London Senior C# Developer - Equity Derivatives Technology Risk (VP) - London Job Overview: We are seeking an experienced and highly skilled Senior C# Developer to join our dynamic team. The ideal candidate … work collaboratively in a fast-paced environment to deliver innovative solutions. Key Responsibilities: Implement robust, high-performance, and scalable solutions for Citi's Equity Derivatives Risk management platform using C# (C++ is a bonus) Collaborate with traders, quants, and analysts to gather requirements and ensure the software meets business needs Integrate new features and functionalities into existing risk infrastructure … share knowledge to enhance team capabilities Stay updated with the latest industry trends, technologies, and best practices. Proactively suggest improvements to existing systems and processes Technical Skills: Proficient in C# and ideally C++ programming languages Experience with multi-threading, concurrency, and real-time systems Familiarity with financial data protocols and market data feeds In depth knowledge of SQL and More ❯

C#, OMS, FIX, Docker, Kubernetes, Kafka, AWS, Hedge Fund McGregor Boyall is partnering with a premier London hedge fund to enhance functionality on their OMS platform. In this role, the successful applicant will implement real-time trade execution flows, develop robust message handling patterns, and optimize performance-critical systems where microseconds matter. The tech stack combines C# with …/CD pipelines. Beyond coding, you will 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 Extensive experience working on an OMS or related/similar platforms (EMS, PMS, booking, processing, etc.) FIX experience essential Extensive experience with a top financial services institution More ❯