1 to 25 of 41 Permanent C# .NET Developer Jobs in London

Join to apply for the C# Developer .Net SQL - Quant Trading role at Free-Work UK . This range is provided by Free-Work UK. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay … range 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 using a modern tech stack, with opportunities for technical ownership from day one. You'll partner with Quant teams to help architect valuation, risk 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 Gas & Power IT Developer | Energy Trading | .NET, C#, Oracle PL/SQL, MiFID … from VirtueTech Recruitment Group Creating a network of niche talent in Energy & Commodities. 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 … 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 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 … 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 ❯

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 … 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 ❯

Social network you want to login/join with: Senior Full Stack C# .NET Developer, west london col-narrow-left Client: WebX Systems Ltd. Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 … Expiry Date: 15.07.2025 col-wide Job Description: Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB, UltraAuthor, UltraXML , and UltraPortal —are … cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving forward new development. Technology Stack Legacy C#, .NET Framework, WinForms, WCF Client-Server Architecture, MS SQL Server Modern .NET 9, Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ More ❯

Social network you want to login/join with: Senior Full Stack C# .NET Developer, south west london col-narrow-left Client: WebX Systems Ltd. Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views … Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB, UltraAuthor, UltraXML , and … cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving forward new development. Technology Stack Legacy C#, .NET Framework, WinForms, WCF Client-Server Architecture, MS SQL Server Modern .NET 9, Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ More ❯

Social network you want to login/join with: 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, london (city of london) col-narrow-left Client: VirtueTech … right Job Views: 2 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: 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 … 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 More ❯

Developer Advocate, Backend (C#, .NET), AWS Developer Experience Are you a .NET backend developer who is passionate about cloud technology and loves sharing knowledge? Do you enjoy architecting scalable backend solutions and want to inspire others to leverage the … power of AWS with C# and .NET? We have an exciting opportunity for you! Amazon Web Services (AWS) is seeking a .NET Backend Developer Advocate to join our team in Bangalore, India. In this role, you'll be at the forefront of cloud … coding a demo on microservices using .NET Core, Docker, and Amazon ECS. After lunch, you could write a blog post on optimizing C# Lambda functions. The afternoon might involve preparing for a workshop on scalable APIs with ASP.NET Core and API Gateway, and answering AWS questions on More ❯

Social network you want to login/join with: .NET Developer, C#, WPF – Remote, London Client: Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: c94473510b52 Job Views: 16 Posted: 15.06.2025 Expiry Date: 30.07.2025 Job Description: Our client leads the … improve project management efficiency, this consultancy is always at the forefront of industry trends. Our client is looking to hire .NET Developers (C#, WPF, .NET) at all levels. You will be working on the development of a revolutionary new product that will have a dramatic … impact on the company’s growth. .NET Developer applicants should have a skill set that includes: .NET, C# and WPF. Our client will give you the opportunity to work on enterprise level software development projects and provide training into: C#, WPF, .NET More ❯

.Net Developer/Backend Software Engineer (Junior - Mid) London to £80k Are you a bright, ambitious .Net Developer who enjoys collaborating and working on complex systems with cutting edge technology? You could be progressing your career at a highly profitable, systematic Hedge … low latency; these systems are released with high frequency with technology choices that are continuously evolving. There's a focus on backend development with C# .Net and Kubernetes however you will work across the full stack, using TypeScript and React on the client side. You'll take … discipline, Computer Science, Mathematics or Physics preferred, 2.1 or above from a top tier university (e.g. Russel Group, Oxbridge, World top 100) You have C# serverside development skills, including .Net Core and multi-threading You have a good knowledge of AWS and Kubernetes The tech stack also 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 … 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 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 … would like you to have a background in working for a bank, specifically 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 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 … 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# … 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 More ❯

C# .NET Software Developer with FX 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 trach record of developing with C# .NET ideally with some understanding FX projects. The Company is a fast growing dynamic brokerage firm, specialising in currency options and interest rate swaps. They are seeking a talented technologist to join the London team. You will be working in a fast paced, delivery focused environment where …/tradeflow and pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills :- Minimum 3 years experience 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 ❯

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 … 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 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. Responsibilities: Ownership of FM Digital Technical architecture including the ongoing review of overall FM Omni technical design, structure and future-fit. Project lead on any future re-platforming for FM.com. Be the … associated with the designs. Role-specific knowledge: 5+ years of senior technical lead experience. 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 More ❯

C# .net Developer ?" Insurance Our Client is an insurance underwriter in the City of London. They are now looking to grow their software development team and are looking to recruit a C# .net Software Developer. You will have at least 5 to … developing complex software with C#. A strong mathematical background would be advantageous but not required. Must have excellent communication and interpersonal skills. Expert in C# Development coupled with Java/jQuery Web development Web API, CSS. You will have solid SQL Server experience (stored procedures, table design and some … ideal candidate will have a drive to succeed, take part in IT strategy and work in a technology rich and agile environment. The developer will be part of a small team with responsibilities for ensuring the business has full support regarding IT systems. Key aspects of the role More ❯

C# .net Developer – Insurance Our Client is an insurance underwriter in the City of London. They are now looking to grow their software development team and are looking to recruit a C# .net Software Developer. You will have at least 5 to … developing complex software with C#. A strong mathematical background would be advantageous but not required. Must have excellent communication and interpersonal skills. Expert in C# Development coupled with Java/jQuery Web development Web API, CSS. You will have solid SQL Server experience (stored procedures, table design and some … ideal candidate will have a drive to succeed, take part in IT strategy and work in a technology rich and agile environment. The developer will be part of a small team with responsibilities for ensuring the business has full support regarding IT systems. Key aspects of the role More ❯

Social network you want to login/join with: Why this Junior C# .NET Developer position is like ballet., london Client: Mongoose Gray Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description … We are looking for a Junior Back End Developer to work for a fast-growing SaaS business in central London. The role offers a salary of £35,000 per annum, with potential for more for exceptional candidates. The … position involves hybrid working on a 4+1 basis and a strong work/life balance culture. The ideal candidate will be familiar with the C# .NET ecosystem, have some understanding of Typescript, HTML, and CSS, and use GitHub. They should enjoy writing clean, maintainable, and performant code 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# .NET. The Client would like meet candidates ideally with some understanding Trading Floor projects to include Fixed Income, Risk Management, Swap Options and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems so an understanding of … 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 Title: 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 Client: VirtueTech Recruitment Group Location: London, United Kingdom Job Category: Other EU work permit required: Yes … focused on building and supporting applications for the expanding Gas & Power trading desk . The role emphasizes Oracle PL/SQL , .NET, C# , and desktop-based development . This is a greenfield project , working directly with traders and middle office stakeholders to shape the future of European … month rolling contract Rate up to £800/day, Inside IR35 Hybrid working: 3 days/week in Central London Technologies: .NET, C#, Oracle PL/SQL, RabbitMQ, MiFID, EMIR, ENDUR Key Responsibilities: Design, develop, and maintain front-to-back trading applications using .NET and More ❯

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 More ❯

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 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# .NET. The Client would like meet candidates ideally with some understanding Trading Floor projects to include Fixed Income, Risk Management, Swap Options and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems so an understanding of … 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 ❯

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# .NET. The Client would like meet candidates ideally with some understanding Trading Floor projects to include Fixed Income, Risk Management, Swap Options and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems so an understanding of … 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 ❯