Staff Backend Engineer

The role

Staff Backend Engineers shape technical direction across teams and own high-consequence backend problems. You will improve performance, resilience, and data integrity across production systems while remaining hands-on with implementation and prototyping.

What you will do

• Own high-consequence backend problems that span services, teams or product domains
• Establish clear system boundaries and architectural direction
• Lead technical decisions by making constraints, alternatives, risks and trade-offs explicit
• Improve performance, resilience, data integrity, operability and failure handling across production systems
• Resolve recurring structural problems
• Remain hands-on with implementation, diagnosis or prototyping
• Mentor senior engineers and raise review quality
• Partner with engineering and product leaders on sequencing, risk and long-term technical investment

Required qualifications

• Evidence of technical impact across multiple teams or a substantial product domain
• Proven backend engineering experience in Java
• Deep ownership of distributed backend systems operating at meaningful scale
• Strong judgement in service boundaries, asynchronous communication, data ownership, consistency and failure modes
• Deep knowledge of relational databases, transactions, concurrency and high-performance design
• A track record of improving reliability, scalability, observability or developer effectiveness through durable mechanisms
• The ability to influence technical direction through evidence, clarity and trusted execution
• Clear communication that helps teams act on complex technical decisions
• Strong engineering fundamentals and the judgement to choose when to standardise, simplify or leave a system alone

Nice to have

• Strong production experience in Go or Node.js

Before you apply

• Recruiter conversation
• Code Review
• System Design
• Managerial interview
• Only candidates selected for interview will be contacted

About the company

trading212 reinvents how trading and investing work by creating products for over 6 million clients. The platform is powered by a modern, high-performance engineering stack.