Software Engineer (C++)

C++ Software Engineer – Outside IR35 Contract

• London, UK
• Long-Term Engagement on a Rolling Contract
• Hybrid Working
• Up to £750 per day (Outside IR35)

We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The successful candidate will have experience in Financial Markets Technology and realtime market data expertise. It’s a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C‑Suite, etc.

Responsibilities

• Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) – by doing this you will position the client as a leader in Quant Trading.
• Work alongside hardware and software teams to build realtime market data processing.
• Define, implement and enforce SLAs, policies and metrics to monitor the area.
• Develop systems, interfaces and tools to historical market data simulations to increase research productivity.
• Build and maintain automated test and bench market framework, risk management, performance tracking, etc.

Required Skills

• Strong C++ expertise (OOP, data structures, algorithms; modern C++ and templates a plus)
• Solid financial markets experience across multiple asset classes
• Deep knowledge of low‑latency, real‑time system design and trading protocols (DMA, market data focus)
• Extensive experience building and managing large‑scale market data systems (Bloomberg, Reuters, FactSet; on‑prem & cloud)
• Strong understanding of Linux internals, networking, and CPU architecture optimization
• Proficient in additional languages (e.g., Java, Python), cloud platforms (AWS/GCP), and containers (Docker/Podman); excellent communication and leadership skills

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