Senior Backend Engineer

Architect and build large-scale distributed systems capable of supporting millions of users and tens of thousands of requests per second. Design event-driven architectures, partitioning strategies, and highly scalable data platforms with a focus on reliability and fault tolerance. Lead performance optimisation initiatives across application, infrastructure, storage, networking, and caching layers. Own systems end-to-end, from architecture and development through production operations and continuous improvement. Evaluate and adopt emerging technologies, including AI-driven capabilities, to solve complex engineering and business challenges.

Extensive backend engineering experience building highly scalable, distributed systems in production environments. Proven experience operating services handling 20,000-30,000+ requests per second and large-scale user traffic. Deep expertise in system design, distributed architecture, concurrency, partitioning, consistency models, and performance engineering. Demonstrated success solving complex scaling, latency, reliability, and availability challenges in mission-critical platforms. Strong technical curiosity with the ability to rapidly learn new technologies, domains, and AI capabilities independently.

Opportunity to solve genuinely complex engineering problems at significant scale within a highly technical environment. Competitive compensation package alongside strong career growth and exposure to cutting-edge platform engineering challenges.

Our client is a technology-led financial services organisation building highly sophisticated platforms that operate at significant scale.