Lead Backend Development Engineer

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. • Job Responsibilities • Gateway System Development: Responsible for the design and evolution of core gateway clusters, encompassing C-end (customer-facing) traffic ingress, internal gRPC traffic governance (east-west traffic), and critical trading pathways. • Extreme Performance Optimization: In high-throughput, low-latency scenarios, leverage techniques such as zero-copy, lock-free concurrency, efficient memory management, and language-level refactoring to squeeze out every bit of performance, ensuring rock-solid stability during volatile market conditions. • Architecture Design & Refactoring: Skillfully apply design patterns and architectural principles to build modular, extensible gateway components, continuously improving code quality and system decoupling. • End-to-End Project Delivery: Demonstrate strong ownership — independently drive the entire lifecycle from design review, core development, through to production release, ensuring full follow-through from start to finish. • Technical Communication & Feedback: Maintain a high degree of transparency on technical solutions and project progress, ensuring that technical risks and key milestones are communicated promptly and accurately, creating a closed feedback loop. • Requirements • Programming Languages: Proficiency in Go or C++; solid experience with high-performance network programming and common protocols (TCP/UDP, WebSocket). • Low-Level Fu