Quantitative Developer

Company:  Fionics
Location: London
Closing Date: 06/07/2026
Hours: Full Time
Type: Permanent

Job Description

Quant Developer — C++/Python (Backtesting & Research Production)


London | Full-time | On-site


Systematic prop firm combining deep learning and quantitative research to trade global markets. Small, technical team — every hire directly impacts strategy and P&L.


The Role Translate Python research into production C++. Build and optimise backtesting/simulation systems using L3 market data. Own components end-to-end alongside researchers and senior engineers.


You

  • BSc/MSc from a top university in CS, maths, engineering, or physics
  • 0-5 years with C++ in quant finance or data-intensive environments
  • Comfortable with Python for analysis and tooling
  • Builder mindset - ship fast, iterate, own problems


Why Here

  • Deep learning meets systematic trading
  • Small team, high autonomy, visible impact from day one
  • Ideas move from concept to live trading quickly


All applications confidential

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