C++ Software Engineer – Outside IR35 Contract
London, UK
Long‑Term Engagement on a Rolling Contract
Hybrid Working
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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