C# Backend Developer Fintech

Quant Capital
London

Tech: C#, concurrent .NET code, TCP/IP and websockets, SQL

Challenge: Greenfield Trading platform, API development, industry specific challenges

Firm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev Team

Pay: £80k, 20% Bonus- £750 training budget, Pension, Life / Health, Some Flex Working

C# Backend Developer Fintech

Quant is urgently looking for a junior and senior C# Software Engineer to join our high profile client.

Current challenges greenfield trading platform development and Integration to other platforms

Our client is a well known commodity trading platform.

The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is calm and relaxed with an open dress code. This is a role for techies, those who are motivated by the sharp end of technology and the possibility of making serious money doing something you are passionate about.

C# Developers MUST have:

  • Degree
  • C# and SQL
  • Experience writing efficient, concurrent .NET code
  • Experience working on distributed systems
  • Knowledge of TCP/IP and websockets

The successful individual will join a small team working directly with the Head of development. My client isgrowing rapidly as they expand the audience for their products. I am looking for someone who can grow with the team, in responsibility and/or technological prowess – and make a significant contribution to the products we are developing. In our informal technology team office, we offer a quiet, friendly environment with break-out rooms for planning and discussion.

Build and improve highly concurrent, event driven architectures with interesting resiliency and performance requirements using Microsoft .NET and C#

  • Opportunities to solve interesting and complex problems
  • Work with some amazing technologists and learn about other parts of the business through our commitment to collaboration
  • Amazing opportunities to learn through regular tech talks, training and Hackathons
  • Join a company with strong market presence
  • Excellent benefits and a commitment to work life balance
  • Regular social events and opportunities to get to know your colleagues

The client offers a bonus to all employees as a result of performance from day 1 usually around the 20% mark.

My client is based in Central London

WPF C#, MVC 5 Entity Framework, Web API, Design Patterns

Posted 2025-10-30

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