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C# Software Engineer - Quant Trading

Job in Newcastle upon Tyne, Newcastle, Tyne and Wear, SY7, England, UK
Listing for: Client Server Ltd.
Full Time position
Listed on 2026-06-13
Job specializations:
  • Software Development
    C# / Unity Developer, Software Engineer, Backend Developer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 85000 - 100000 GBP Yearly GBP 85000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: Newcastle upon Tyne

Newcastle upon Tyne, Tyne and Wear | £85k - £100k per year

C# Software Engineer / Developer (C# .Net SQL Maths) Newcastle onsite to £150k+

Are you a mathematically minded C# Software Engineer with a first class education and strong programming skills?

You could be progressing your career, working on complex and interesting systems at a global finance consultancy.

As a C# Software Engineer you'll focus on integrating the mathematical models built by Investment Quants, creating scalable, performant and supportable cross asset class applications including APIs, UIs and tools. You'll be mainly using backend C# .Net and SQL.

There's an Agile, collaborative team environment with plenty of problem solving, learning opportunities and career development as the company scales.

Location / WFH:

You’ll join colleagues in Central Newcastle offices on a full‑time basis (Monday to Friday), working hours  with some flexibility.

The offices are well equipped and offer fantastic views across the City and the local countryside, many employees walk or cycle in (onsite showers available!), there's a diverse, social team atmosphere with many employees having recently relocated and lots of support available.

About you:

  • You have an outstanding record of academic achievement - minimum 2.1 in Mathematics or similar STEM 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# going forward)
  • You have a strong knowledge of SQL databases
  • You have a strong interest and desire to work in a finance / trading environment, ideally with commercial experience but will also consider personal projects
  • You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms
  • You're entrepreneurial with good business acumen, keen to take ownership and lead projects
  • You're collaborative, enjoy problem solving and sharing ideas

What's in it for you:

As a C# Software Engineer / Developer you will receive a competitive package:

  • Salary to £100k
  • Bonus
  • 25 days holiday
  • Social team atmosphere with a range of events and early finish for drinks on Fridays

Apply now to find out more about this C# Software Engineer / Developer (C# .Net SQL Maths) opportunity.

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