Onlano
Python DevelopmentOnsite

Quantitative Developer (C++/Python)

Fionics - Company

London, UK, ๐Ÿ‡ฌ๐Ÿ‡ง United KingdomFull-time - Mid level (2-4 years)0 applicantsCloses Jun 17, 2026

Salary

GBP 74,650 - 74,650 / year

Apply for this job

Job description

Job details

  • Location: London, UK
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: GBP 74,650 per year

Role overview

Fionics, a systematic prop firm leveraging deep learning and quantitative research, seeks a Quantitative Developer to build high-impact trading systems. You'll translate Python research into production-grade C++ and optimize backtesting infrastructure using L3 market data.

Job details

Based in London, this full-time on-site role offers a fixed salary of ยฃ74,650. No internships available. The small technical team ensures direct influence on trading strategies and profitability.

Responsibilities

  • Translate Python research models into optimized C++ production code
  • Design and implement high-performance backtesting/simulation systems
  • Collaborate with researchers and senior engineers on end-to-end components

Requirements

  • BSc/MSc in Computer Science, Mathematics, or related field from top university
  • 3+ years professional experience with Python and C++
  • Experience with financial market data or quantitative systems

Benefits

  • Direct impact on trading strategies and P&L
  • Collaborative environment with senior technical leadership

Keywords

C++PythonbacktestingL3 market dataquantitative researchsystematic tradingdeep learningalgorithmic development