Contractor job Senior C++ Software Engineer

London

Templeton and Partners Limited

C/C++

Job position Senior C++ Software Engineer

Contractor

As soon as possible

4 days renewable

£400-850

5 to 10 years experience

Hybrid

London, England, United Kingdom

Published on 12/03/2026

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Senior C++ Software Engineer
12 month contract - £600 to £850 per day inside
Global Trading & Supply | High-Performance Trading Technology

As a Senior C++ Software Engineer, you'll collaborate with technologists, quants, and traders to build and optimise our in-house global derivatives trading platform. You'll work across the full stack of proprietary trading technology - from exchange connectivity to trading engines - with the autonomy and impact of a high-performance engineering culture.

You will play a key role in ensuring ultra-low latency performance, reliability, and scalability while shaping the next generation of our trading systems.

What You'll Work On Exchange Connectivity

Develop software that interacts with major global futures exchanges via native APIs & protocols (FIX, WebSocket, HTTP).
Maintain and extend testing suites to ensure robust connectivity performance.
Optimise exchange communication through Kernel bypass, TLS tuning, and advanced networking techniques.
Study and align with detailed exchange behaviours.
Work across C++, Rust, Python, and Typescript where required.

Trading Strategies

Build and enhance algorithmic trading strategies from trader and quant requirements.
Increase the performance, reliability, and stability of the trading engine.
Improve monitoring and observability alongside Trading Operations.
Diagnose and resolve production issues (crashes, logic anomalies, latency bottlenecks).
Support release preparation and deployment of trading engine versions.

Technical Experience

5+ years post-graduation C++ experience in the financial markets.
Strong multi-threaded, asynchronous, and distributed systems engineering background.
Deep knowledge of algorithms and data structures.
Understanding of the full exchange-traded derivatives life cycle.
Strong Scripting and automation skills (Python, PowerShell, C#, SQL etc.).
Proven track record in application deployment best practices and proactive system monitoring.

Industry Experience

8+ years in Trading, Capital Markets, or Investment Banking environments.
Familiarity with global futures exchanges and their native protocols.

For information please APPLY NOW!

Discover Templeton and Partners Limited

Paris, Île-de-France

20 - 99 employees

Recruitment agency

A global technology recruitment agency, we supply specialist IT Contractors, C-Suite Executives and entire tech teams under Statement of Work solutions, and provide tech jobs for IT professionals. Our team are 70% international and speak 25 languages. Across 8 offices in London, Paris, Amsterdam, Berlin, Zurich, Warsaw, Bangalore and New York we provide local candidates in 40 countries globally including Belgium, France, Spain, the Nordics, USA, India and China. Even in 2021, only 17% of European and 19% of UK tech specialists are female, and only 5% of SMEs are BAME-led. Templeton also recruit diverse C-Suite permanent staff to address the shortage of diversity in tech. Templeton are BAME-led with a majority female team from a wide variety of backgrounds. Our diverse team are helping tech become more diverse, one leader at a time. We help leading global organisations to drive digital transformation with the best skills in emerging technologies, including AI, ML, BI, Cloud, IoT, Data Analytics, Data Science, Cyber Security, DevOps, UX/UI, AR, VR, Blockchain and Computer Vision. We build entire tech teams from CTOs, CIOs and Scrum Masters to Product Owners, Agile Coaches, Architects, Analysts, Designers, Developers and Engineers. After becoming the first UK recruitment agency to feature on all three recruitment industry lists (Recruiter Fast 50, Recruiter Hot 100 and Recruitment International Top 500), in 2021 we received 11 awards including Export Champion of the Year at the Growing Business Awards, and our CEO Nadeem was named REC’s Business Leader of the Year. In 2022 we received the Stevie International Business Awards for Best Customer Service and Best Business Development, and the British Quality Foundation Award for Excellence in Equality, Diversity & Inclusion. Visit our website at templeton-recruitment.com to find out more about our tech recruitment services and IT job opportunities.

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Senior C++ Software Engineer

Templeton and Partners Limited