Staff Backend Engineer

<p style="min-height:1.5em"></p><h2>Our mission is to enable everyone to build wealth</h2><p style="min-height:1.5em">We reinvent how trading and investing work by creating exceptional products people love.</p><p style="min-height:1.5em">That takes high standards, high velocity and engineers who own what they ship.</p><p style="min-height:1.5em">Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, performance, reliability and data integrity are part of the product.</p><p style="min-height:1.5em">Our platform is powered by a modern, high-performance engineering stack designed for scale and reliability: Java 21 (Spring), Go, Node.js (TypeScript), PostgreSQL, MariaDB, Redis, Kafka, ClickHouse, Elasticsearch, Docker, Grafana, AWS, Kubernetes and Kibana.</p><h2>About the role</h2><p style="min-height:1.5em">Staff Backend Engineers shape technical direction across teams while remaining close to the systems and code. You will take on problems whose consequences extend beyond one service or delivery cycle.</p><p style="min-height:1.5em">This is not a people-management role. Its leverage comes from technical judgement, credible execution and the ability to help other engineers make better decisions.</p><h2>What you’ll do</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Own high-consequence backend problems that span services, teams or product domains.</p></li><li><p style="min-height:1.5em">Establish clear system boundaries and architectural direction without creating unnecessary central control.</p></li><li><p style="min-height:1.5em">Lead technical decisions by making constraints, alternatives, risks and trade-offs explicit.</p></li><li><p style="min-height:1.5em">Improve performance, resilience, data integrity, operability and failure handling across production systems.</p></li><li><p style="min-height:1.5em">Resolve recurring structural problems rather than treating symptoms team by team.</p></li><li><p style="min-height:1.5em">Remain hands-on where implementation, diagnosis or prototyping is the fastest way to create clarity.</p></li><li><p style="min-height:1.5em">Mentor senior engineers, raise review quality and make strong engineering judgement easier to reproduce across teams.</p></li><li><p style="min-height:1.5em">Partner with engineering and product leaders on sequencing, risk and long-term technical investment.</p></li></ul><h2>What you need to have</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Evidence of technical impact across multiple teams or a substantial product domain.</p></li><li><p style="min-height:1.5em">Deep ownership of distributed backend systems operating at meaningful scale.</p></li><li><p style="min-height:1.5em">Strong judgement in service boundaries, asynchronous communication, data ownership, consistency and failure modes.</p></li><li><p style="min-height:1.5em">Deep knowledge of relational databases, transactions, concurrency and high-performance design.</p></li><li><p style="min-height:1.5em">A track record of improving reliability, scalability, observability or developer effectiveness through durable mechanisms.</p></li><li><p style="min-height:1.5em">The ability to influence technical direction through evidence, clarity and trusted execution rather than title.</p></li><li><p style="min-height:1.5em">Clear communication that helps teams act on complex technical decisions.</p></li><li><p style="min-height:1.5em">Strong engineering fundamentals and the judgement to choose when to standardise, simplify or leave a system alone.</p></li></ul><p style="min-height:1.5em"><em><strong>Staff scope is assessed through ownership, judgement and sustained organisational impact—not years of experience or familiarity with every technology listed.</strong></em></p><h2>What to expect</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Recruiter conversation</p></li><li><p style="min-height:1.5em">Code Review</p></li><li><p style="min-height:1.5em">System Design</p></li><li><p style="min-height:1.5em">Managerial interview</p></li></ul><p style="min-height:1.5em">Your recruiter will explain each stage clearly and follow up after every conversation.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">Bring your ambition to Europe’s fastest-growing mobile broker!</p><p>Find <a href="https://www.arbeitnow.co.uk">Jobs in United Kingdom</a> on Arbeitnow</a>