Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.
Core C++ Developer – Crypto High-Frequency Trading
About Selini:
Selini is a global trading firm focused on systematic trading and venture investing.
OverviewWe are seeking an exceptional Core C++ Developer to contribute to the development and optimization of our high-performance trading systems. This role focuses on building ultra-low-latency infrastructure, optimizing execution speed, and ensuring robust system reliability. The ideal candidate will have deep expertise in modern C/C++, systems programming, and high-performance computing.
Key Responsibilities- Design, develop, and optimize low-latency, high-performance trading infrastructure in modern C/C++ (latest standards).
- Implement efficient and scalable trading algorithms, order execution, and risk management systems.
- Deep understanding of exchange connectivity standards for market data and order entry
- Optimize CPU performance, memory management, and multi-threaded applications.
- Collaborate with quant researchers, traders, and infrastructure engineers to improve system performance.
- Profile, benchmark, and debug real-time systems to minimize latency and maximize throughput.
- Maintain robust and fault-tolerant system components for continuous trading operations.
- Expert-level proficiency in C++, with a strong grasp of modern C++ features (C++17/20/23/26).
- Extensive experience in low-latency, high-performance systems programming.
- Deep understanding of networking (TCP/UDP), concurrency, and multi-threading.
- Strong experience in Linux-based development and performance tuning.
- Experience with real-time, high-throughput systems where performance is critical.
- Background in crypto or traditional finance trading systems
- Candidates with exceptional academic or industry backgrounds.
- Strong analytical skills and ability to work in high-pressure, real-time environments.
- Collaborative team player who enjoys solving complex engineering problems.
We’re a close-knit team that values:
- High ownership and initiative
- Curiosity, intellectual honesty, and rapid learning
- Clear, direct communication
- Working together toward shared goals — no ego, no politics
- Very competitive compensation, with strong upside based on contribution and performance
- Competitive holiday allowance
- Free daily Deliveroo lunch
- High-spec office and technology
- Team socials
- Global company offsites and development opportunities
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