junior c++ developer Work, Jobs in london (with Salaries)

Graduate Quantitative Developer
DeepFin Research —London
- Master's degree
- C++
- Bachelor's degree
Senior C++ / Java Developer
LSEG (London Stock Exchange Group) —London
- Full-time
- Computer Science
- Engineering
- Java
Developer
International Workplace Group plc —London
- Full-time
- Hybrid work
- Computer Science
- English
- Java
3d
Junior-Mid Level Options Trader
G-20 Group —London
- Full-time
- Data analysis skills
- C++
- Communication skills
Quick apply
Quantitative Developer, VP
Citi —London
- Full-time
- Doctoral degree
- C++
- Maths
Software Development Engineering - Sr Professional I
Fiserv —Basildon
- Full-time
- Azure
- Military
- DevOps
Staff Software Engineer (ML QA)
Graphcore —London
- Management
- Doctoral degree
- Computer Science
- Annual leave
- Employee assistance programme
13d
Optical Instrumentation Engineer | Spectroscopy | Analytical Instrumentation | | AI | Photonics | HealthTech | Deep Tech Startup
iLoF —London
- Full-time
- Remote
- Master's degree
- C++
- Python
Quick apply
Senior Software Engineer (ML QA)
Graphcore —London
- Management
- Doctoral degree
- Computer Science
- Annual leave
- Employee assistance programme
13d
Quant Model Risk Senior Associate/Vice President - Rates
JPMorganChase —London
- Full-time
- Doctoral degree
- Master's degree
- C++

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Senior C++ / Java Developer
LSEG (London Stock Exchange Group) —London
This is an individual contributor role responsible for the design, development, and delivery of high‑quality software solutions using C++ and Java within a…
Lead C++ / Java Developer
LSEG (London Stock Exchange Group) —London
Build and evolve low‑latency, high‑availability systems handling high message volumes and time‑critical processing.

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junior c++ developer jobs near london

Graduate Quantitative Developer

DeepFin Research
London

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Job details

Qualifications

NumPy
Master's degree
Pandas
C++
Bachelor's degree
Python

Full job description

DeepFin is a systematic proprietary trading firm combining deep learning, traditional quantitative research methods, and cutting-edge trading technology, to trade global markets. Founded by engineers and researchers, we build and deploy advanced trading systems that operate across global markets.

Our team is lean, highly technical, and impact-driven - every hire plays a direct role in shaping the firm’s technology, strategy, and performance. We value curiosity, precision, and collaboration, and we’re building an environment where exceptional people can do their best work at the intersection of AI and financial markets.

Junior Quant Developer — Backtesting, Simulation & Research, Productionise Research (C++/Python)

Role Overview

We’re hiring a junior Quant Developer to help productionise research into robust, high-performance trading systems. You’ll work closely with Quant Researchers and senior engineers to convert Python research code into production C++, build and optimise backtesting / simulation infrastructure, and support strategy development using L3 market data across multiple venues.

This is a hands-on, engineering-heavy role in a fast-moving environment: you’ll own components end-to-end and contribute directly to research velocity and trading PnL.

Key Responsibilities

Productionise research models into C++: translate Python prototypes into efficient, maintainable C++ production code.
Backtesting & simulation: build and improve simulation systems that reflect real market mechanics (order book, fills, cancels, exchange rules).
L3 market data handling: ingest and process high-volume tick/order-level feeds; create reliable feature pipelines from raw exchange data.
Performance optimisation: improve latency and throughput of backtests/sims (profiling, memory optimisation, data structures, parallelism where appropriate).
Research support tooling: create utilities for data inspection, experiment tracking, run orchestration, and post-trade analytics in Python.
Debugging & correctness: investigate mismatches between simulation and production behaviour; diagnose edge cases and implement fixes with strong test coverage.
production.

Requirements

Education: Bachelor’s or Master’s from a top university in Computer Science, Engineering, Math, Physics, or similar.
0-3 years experience in quantitative finance or other relevant data-intensive industries working with C++
Strong working knowledge of C++ (memory, ownership, STL, performance-aware coding).
Experience: demonstrable evidence of hands-on systems work in C++ handling large-scale data (internships, research labs, competitive projects, open-source).
Comfortable with Python for analysis, tooling, and debugging (pandas/numpy/Jupyter a plus).
Exposure to quantitative finance, eg through internships/university societies, including market microstructure and L3/order book data.
Clear “builder mindset”: you like owning problems end-to-end, shipping incrementally, and iterating quickly.

If you’re passionate about applying advanced technology to real-world markets and want to work alongside a focused, high-performing team, we’d love to hear from you. DeepFin offers a collaborative, research-driven environment where ideas move quickly from concept to execution and where every contribution has visible impact.

Join us in building the next generation of deep-learning-driven trading systems - shaping the future of finance through innovation, rigour, and technology.

Apply Now

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junior c++ developer jobs in london

Graduate Quantitative Developer

Senior C++ / Java Developer

Developer

Junior-Mid Level Options Trader

Quantitative Developer, VP

Software Development Engineering - Sr Professional I

Staff Software Engineer (ML QA)

Optical Instrumentation Engineer | Spectroscopy | Analytical Instrumentation | | AI | Photonics | HealthTech | Deep Tech Startup

Senior Software Engineer (ML QA)

Quant Model Risk Senior Associate/Vice President - Rates

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