Principal Backend Development Engineer (C++)

Job description

**About Us** Established in 2018, Bybit is one of the world’s leading cryptocurrency exchanges and digital financial platforms, serving over 80 million users across more than 200 countries and regions. Powered by world-class technology and a user-first mindset, Bybit delivers a seamless ecosystem across trading, payments, wealth management, custody, institutional services, and Web3 — connecting users to the future of digital finance. Our core values define how we build. We listen, care and improve to create products and experiences that put users first. Backed by a global team of ambitious builders, problem-solvers, and innovators, we foster a high-performance and fast-moving environment where talent is empowered to drive real impact at the global scale. Supported by 24/7 multilingual customer service and a strong commitment to innovation, we are shaping the future of finance through technology, collaboration, and bold execution. Today, Bybit is recognized as one of the most trusted and transparent platforms in the digital asset industry, continuing to expand its global presence while building the infrastructure for the next generation of financial services. **Responsibilities** 1. Design and develop core derivatives trading systems covering order processing, position management, and real-time account risk controls, supporting perpetual contracts, futures, and options. 2. Design high-performance data structures, concurrency models, and event-processing mechanisms to ensure consistency and correctness across orders, trades, positions, and account balances. 3. Collaborate with product, risk management, and operations teams to translate trading rules and risk requirements into clear, verifiable system implementations. 4. Participate in architecture reviews, code reviews, performance testing, and production troubleshooting to improve engineering quality and observability. **Requirements** 1. Fluency in English. 2. At least 5 years of C++ development experience, with hands-on experience building high-performance, highly concurrent, or low-latency systems. 3. Proficiency in modern C++, with a deep understanding of object lifetimes, memory management, templates, and the STL, and the ability to write efficient, reliable, and maintainable code. 4. A deep understanding of multithreading, atomic operations, memory models, and thread synchronization, with the ability to diagnose and resolve concurrency correctness and performance issues. 5. Experience with Linux systems programming and network programming, including TCP/UDP, I/O multiplexing, and common network performance bottlenecks. 6. An understanding of how CPU caches, cache coherence, false sharing, and NUMA affect performance, with experience using tools such as perf for performance analysis and optimization. 7. Experience designing complex stateful systems and addressing event ordering, idempotency, state consistency, and fault recovery. 8. A strong focus on correctness and reliability, with solid analytical skills and the ability to independently investigate complex issues, design solutions, and implement them. **Preferred Qualifications** - Experience developing systems for exchanges, brokerages, futures trading, quantitative trading, or financial infrastructure. - Familiarity with derivatives trading mechanics, including margin, leverage, isolated and cross margin, mark prices, funding rates, liquidation, and settlement. - Experience with lock-free data structures, CPU affinity, memory pools, zero-copy techniques, or SIMD optimization. **Why Join Us** At Bybit, we are committed to fostering a supportive and enriching work environment. Our benefits include: - Study Growth Fund: We support your professional development and continuous learning. - Internal Events: Participate in regular team-building activities, workshops, and events designed to promote collaboration and innovation. - Global Collaboration: Be part of a diverse, international team, working alongside colleagues from around the world. - Career Advancement: Access opportunities for growth and advancement within a rapidly expanding global company. - Internal Mobility: Grow with us- Your long-term development is important to us. We offer internal job opportunities to help build your career path.