5 of 5 C# .NET Developer Jobs in the City of London

/50 between back and front end design. This role is primarily home-based and may occasionally require out-of-hours support. Key Responsibilities Design and develop applications using C#, .NET Core, and React. Follow and help define software development standards and best practices. Work with test-driven development, automated testing, and CI/CD pipelines. Support … contribute to various development projects. Collaborate with third-party software providers throughout the development lifecycle. Provide technical guidance and mentorship to less experienced developers. Required Skills Strong experience with C#, .NET Core, Azure, and test automation. Proficiency in JavaScript and a modern front-end framework (React preferred). Familiarity with microservices, containerisation, and site reliability engineering. Solid More ❯

Role: Contract C# .NET Developer Domain: Commodities trading Project : Energy Trading & Risk Management (ETRM) systems Day rate: £700-800/d (inside IR35) Location: London (hybrid - 3 days per week) Contract: 6 months (strong extension scope) X4 Technology are partnered with a well-backed commodity trading firm in London, offering an exciting contract opportunity for … an experienced C# .NET Developer. In this role, you'll play a key role in evolving the firm's core Energy Trading & Risk Management (ETRM) platform - enhancing functionality, onboarding new products and integrating modern SaaS solutions for analytics, hedging, credit, regulatory reporting and more. You'll also drive improvements to customisation code, strengthen unit testing capabilities, contribute … to a suite of ETRM-adjacent tools (APIs, loaders, reports, data pipelines, BI tools) and support broader initiatives in test automation and CI/CD. Responsibilities of the Contract C# .NET Developer (Commodities) Creating new features within ETRM to facilitate company growth Building solutions for front office users (trade entry, exchange interfaces, STP, etc) Designing 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 … external reporting/tradeflow and 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 clean, well-written, fully tested 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 More ❯

C# Developer – FX Options Trading Technology We are currently seeking a skilled C# Developer to join the FX Options Trading Technology team at a leading global investment bank. This is a front-office role, working closely with traders, quants, and structurers to build cutting-edge trading tools. The team is responsible for developing applications … for real-time pricing logic Partner directly with front-office users including traders, quants, and structurers to gather requirements and deliver solutions Required Skills and Experience Strong experience in C# development Proficiency in SQL Proven ability to work with large-scale, complex codebases Experience integrating with or working alongside quantitative libraries or models Solid understanding of FX Options and More ❯