Senior Backend Engineer (Core Team)

About the Role We’re looking for a Senior Backend Developer who thrives in a deeply hands-on environment and enjoys being close to the code on a daily basis. This role is heavily focused on building, optimising, and scaling backend services in a high-load system where performance and reliability are critical. You’ll be working on complex, real-time challenges at the core of our platform - improving latency, ensuring high availability, and making systems more efficient at scale. This is not a coordination-heavy role; it’s for someone who enjoys writing production code, solving tough engineering problems, and seeing the direct impact of their work. If you’re product-driven, take ownership, and prefer a “build first, improve fast” approach while working on systems where every millisecond matters - this role will feel like home. Key Responsibilities Work as part of a cross-functional team owning a core product within the platform Design, build, and deliver new backend features end-to-end in a distributed environment Write high-quality, production-level code daily, contributing directly to a high-load, scalable system Take ownership of services handling financial transactions at scale, with a strong focus on reliability and accuracy Proactively suggest and implement improvements in architecture, processes, and development practices Participate in code and architectural reviews to maintain high engineering standards Solve complex business and technical challenges with pragmatic, ef