Lead Software Engineer C# / React.js – Top Trading Firm!

Lead Software Engineer C# / React.js – Top Trading Firm!: (Company Name - Subscribers only)

Senior/Lead Software Engineer (C# / React.js) – Top Trading Firm Location: London (Hybrid: 3 onsite / 2 WFH) (Company Name - Subscribers only) Ltd is representing this role. One of the strongest engineering roles in London right now. Are you looking for influence and autonomy? Join a leading trading firm that is rebuilding its entire core platform from the ground up greenfield, modern, high-impact. You’ll be working directly with the CTO on mission-critical systems used across trading and structured products. What You’ll Work On: Full greenfield rebuild of legacy trading systemsModern full-stack engineering: C#/.NET + React.jsHigh-performance, multithreaded architecturesClose collaboration with product, trading, and a 15+ engineering team What We’re Looking For: Strong C#/.NET engineering backgroundSolid React.js (or modern JS with willingness to grow fast)Experience in financial services / trading systemsOwnership mindset – hands-on, ideas-driven, and proactive Interview Process (Fast Turnaround) CTO IntroLive Technical TestHR (Culture & Team Fit) No visas sponsorship on offer, B2B/B2C contractors, or remote-only applicants. This role requires hybrid working in London. If this sounds like your next challenge, APPLY NOW (Company Name - Subscribers only) Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. (Company Name - Subscribers only) is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and more or less experience can apply. Rates of pay and salary ranges are dependent upon your experience, qualifications and training. If you wish to apply, please read our Privacy Notice describing how we may process, disclose and store your personal data: gb/en/privacy-notice.