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Software Engineer, Front End Developer, React.js

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Caspian One
Full Time position
Listed on 2026-06-12
Job specializations:
  • Software Development
    Software Engineer, Front End Developer, React.js
Salary/Wage Range or Industry Benchmark: 900 GBP Daily GBP 900.00 DAY
Job Description & How to Apply Below
Location: Greater London

.NET / React Developer - Fully Greenfield Project

Inside IR35 Contract Role - London - Up to £900 per day

We’re looking for a Full Stack Engineer (5+ years) to join a small, high‑impact team within a global financial institution. This role suits someone with a startup mindset
, comfortable owning work end‑to‑end and building internal platforms used directly by front‑office traders.

This is a fully greenfield project to design and deploy a new trade monitoring system which the front office will use. Domain knowledge is not required and will be taught. This is a great opportunity to improve knowledge of financial instruments or your first step into the industry.

Technical Requirements

  • Strong experience with .NET development and React
  • Familiarity with event processing systems and messaging architectures
  • Ability to work across both frontend and backend development
  • Understanding of end to end delivery from architecture to deployment
  • Ability to run with a task autonomously
  • Hybrid working arrangement: 50% office time (3 days one week, 2 days the next)
  • Small, collaborative team of 3 developers based in London
  • Day rate:
    Up to £900 per day
  • Duration:
    Long term project, minimum 2 years of work.
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