We're working with a leading quantitative investment firm seeking a Senior C++ Engineer to help build and optimise the simulation and research platforms used by researchers and portfolio managers to develop, test, and refine investment models. This is a hybrid role based in London (3 days in/2 days home).
This is not a trading or execution role. The focus is on large-scale systems engineering, performance optimisation, and research infrastructure.
What You’ll Do
- Develop and enhance mission-critical C++ platforms
- Optimise system performance, scalability, and reliability
- Work on low-level systems challenges including memory management, concurrency, and I/O optimisation
- Collaborate with highly technical engineers and researchers
- Take ownership of complex, long-lived platform components
What They’re Looking For
- Strong modern C++ expertise
- Background in systems, platform, or infrastructure engineering
- Experience with multithreading, concurrency, and performance optimisation
- Strong CS fundamentals and problem-solving skills
- Ability to operate as a senior individual contributor
Ideal Backgrounds
The team is particularly interested in engineers from:
- Big Tech
- Infrastructure and platform engineering teams
- Distributed systems or HPC environments
- Database, storage, search, or compute platforms
- Quantitative finance and research-focused technology firms
Why Join?
- Work on business-critical research infrastructure
- Challenging performance and systems engineering problems
- Significant ownership and autonomy
- Strong engineering culture
- Collaboration with world‑class researchers and engineers
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Senior Systems Design C++ Engineer in City of London employer: Selby Jennings
Join a leading global platform that offers an exceptional opportunity for growth and development in the real estate M&A sector. With a collaborative and entrepreneurial team culture, you will be exposed to landmark European transactions while enjoying competitive compensation and clear progression pathways. This role not only allows you to enhance your financial modelling and analytical skills but also provides the chance to mentor junior team members, making it a truly rewarding environment for ambitious professionals.
