# HFT C\+\+ Core Systems Developer - 5-15 years experience - Company: [Selinicapital]() - Location: Global - Team: Technology - Posted: June 16, 2026 ## Job description # **Core C++ Developer – Crypto High-Frequency Trading** **About Selini:** Selini is a global trading firm focused on systematic trading and venture investing. ## **Overview** We 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**. ## **Required Qualifications** * **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** ## **Soft Skills & Culture Fit** * 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 ## **Compensation & Benefits:** * 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 ## Apply [Apply on Selinicapital]() Canonical job page: