Senior Backend Engineer - Security Subsystem (Remote Spain)

Openbank; Madrid; Híbrido; EUR 60.000 - 95.000; Jornada completa

Descripción de la vacante

Open Digital Services, Openbank's software arm, seeks a Backend Software Engineer in Madrid with hybrid or remote options across Spain. You will design, implement, test, deploy, and operate backend services and APIs powering secure customer journeys.

You will translate requirements into scalable designs, work with senior engineers, and contribute to observability, testing, and documentation. English is required; Spanish preferred.

Formación

• 4+ years of backend experience in Go or Java.
• Strong understanding of APIs, data structures, databases, testing, version control.
• Experience debugging software in production or production-like environments.
• English required; Spanish preferred.
• Distributed systems concepts, caching, asynchronous processing, resilience, and performance.
• AWS, Redis, DynamoDB, PostgreSQL, or event-driven architecture.

Responsabilidades

• Design, implement, test, deploy, and operate backend services and APIs used in security-critical customer journeys.
• Turn requirements into maintainable designs and incremental delivery plans with senior engineers and Team Leads.
• Write clear, well-tested code and improve automated testing, documentation, and developer workflows.
• Build observability into services and use logs, metrics, and traces to understand production behavior.
• Participate in sustainable on-call rotation, investigate incidents, and help remove root causes.
• Contribute to data modelling, caching, asynchronous processing, resilience, and performance improvements.
• Take part in code and design reviews and progressively own larger service areas and decisions.

Conocimientos

Backend development (Go/Java)

APIs

Distributed systems

Testing

English proficiency

Problem solving

Herramientas

AWS

Redis

DynamoDB

PostgreSQL

Descripción del empleo

Open Digital Services, Openbank's software arm, seeks a Backend Software Engineer in Madrid with hybrid or remote options across Spain. You will design, implement, test, deploy, and operate backend services and APIs powering secure customer journeys.

You will translate requirements into scalable designs, work with senior engineers, and contribute to observability, testing, and documentation. English is required; Spanish preferred.