Senior Backend Engineer - Scale a €38B fintech platform

Trading-21; España; Presencial; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

Trading-21 is seeking Senior Backend Engineers to join Europe’s fastest-growing mobile broker. You will own backend solutions end to end within a microservices environment, translating complex problems into durable, production-ready services.

Work across teams to design for performance, scale and data integrity. You’ll contribute to a modern stack (Java, Go, Node.js, PostgreSQL) and help evolve services that power millions of clients.

Formación

• Proven ownership of backend services in microservices.
• Strong grasp of HTTP, WebSockets, AMQP.
• Production fluency in at least one modern backend framework.
• Deep knowledge of relational databases and indexing.
• Track record designing scalable, highly available systems.
• Clear structured problem solving and trade-off explanations.
• Strong fundamentals and willingness to learn new tech.

Responsabilidades

• Own backend solutions end to end in production.
• Design and evolve services for performance, scale, resilience and data integrity.
• Make clear technical decisions with trade-offs in mind.
• Keep code and systems maintainable as products evolve.
• Diagnose production problems and address root causes.
• Work with product and engineering to turn complex requirements into simple solutions.
• Review work and raise engineering standards across the team.

Conocimientos

Backend ownership

Microservices

HTTP/WebSockets/AMQP

Relational DBs

High availability

Problem solving

Technical communication

Herramientas

Docker

Kubernetes

PostgreSQL

Descripción del empleo

Trading-21 is seeking Senior Backend Engineers to join Europe’s fastest-growing mobile broker. You will own backend solutions end to end within a microservices environment, translating complex problems into durable, production-ready services.

Work across teams to design for performance, scale and data integrity. You’ll contribute to a modern stack (Java, Go, Node.js, PostgreSQL) and help evolve services that power millions of clients.