Senior Backend Engineer

Trading 212; España; Presencial; EUR 90.000 - 130.000; Jornada completa

Descripción de la vacante

Trading 212 is seeking Senior Backend Engineers to advance our backend platform that powers millions of clients.

You will work across autonomous teams with short release cycles, owning features end-to-end from problem definition to production. A strong background in microservices, distributed systems and scalable databases is essential.

Formación

• Experience owning backend services in a microservices architecture.
• Strong knowledge of relational databases and indexing.
• Experience with production-grade backend frameworks.
• Ability to explain trade-offs clearly.
• Proven track record designing scalable systems.

Responsabilidades

• Own backend solutions end to end: define the problem, shape requirements, design the solution, build it, test it, deploy it and run it in production.
• Design and evolve services for performance, scale, resilience and data integrity.
• Make clear technical decisions with trade-offs and constraints.
• Keep code and systems maintainable as products and requirements evolve.
• Diagnose production problems, address their underlying causes and prevent recurrence.
• Collaborate with product and engineering to translate complex requirements into simple solutions.
• Review work, share knowledge and raise engineering standards across the team.

Conocimientos

Backend architecture

Microservices

HTTP & WebSockets

Relational DBs

High-availability design

Problem solving

Team collaboration

Learning new tech

Descripción del empleo

Our mission is to enable everyone to build wealth

We reinvent how trading and investing work by creating exceptional products people love.

That takes high standards, high velocity and engineers who own what they ship.

Today, we serve over 6 million clients, with more than €38 billion in assets under management - a testament to the scale and trust we have built in just a few years. At that scale, performance, reliability and data integrity are part of the product.

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.

About The Role

Senior Backend Engineers work across our backend organisation. Your team match will reflect your strengths, interests and where you can contribute most.

Across every team, the model is the same: small, autonomous groups, short release cycles and ownership from problem definition through production.

What You’ll Do

• Own backend solutions end to end: understand the business problem, shape the requirements, design the solution, build it, test it, deploy it and run it in production.
• Design and evolve services for performance, scale, resilience and data integrity.
• Make clear technical decisions with a full understanding of the constraints, alternatives and trade-offs.
• Keep code and systems maintainable as products and requirements evolve.
• Diagnose difficult production problems, address their underlying causes and prevent recurrence.
• Work closely with product and engineering colleagues to turn complex requirements into simple, durable solutions.
• Review work critically, share knowledge and raise the engineering standard across the team.

What You Need To Have

• Proven ownership of backend services built and operated within a microservices architecture.
• A strong grasp of communication protocols such as HTTP, WebSockets and AMQP, including when to apply each.
• Production fluency in at least one modern backend framework.
• Deep knowledge of relational databases, including indexing, transactions, isolation levels, locking mechanisms and high-performance design.
• A track record of designing systems for high availability, scalability and resilience.
• Clear, structured problem-solving and the ability to explain technical decisions and trade-offs.
• Strong engineering fundamentals, sound judgement and confidence learning unfamiliar technologies.

Depth in one backend ecosystem and sound tool choice matter more than familiarity with every technology listed.

Bring your ambition to Europe’s fastest-growing mobile broker!