Senior Backend Security Engineer|APIs, Resilience, Go/Java

Santander; Madrid; Híbrido; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

Open Digital Services in Madrid is seeking a Backend Software Engineer to join our hybrid/remote team within Spain. You will build backend services and secure APIs, shaping secure customer journeys and scalable infrastructure.

You will work with senior engineers to turn requirements into maintainable designs, improve testing and documentation, and contribute to data modelling, caching, and observability with strong Go or Java skills and English language proficiency.

Formación

• +4 years of backend experience with Go or Java.
• Experience with APIs, data structures, databases, testing and version control.
• Ability to debug production or production-like environments.

Responsabilidades

• Design, implement, test, deploy, and operate backend services and APIs.
• Turn requirements into maintainable designs with senior engineers.
• Write clear, well-tested code and improve testing and docs.
• Build observability using logs, metrics and traces in production.
• Participate in on-call rotation and investigate incidents.
• Contribute to data modelling, caching, async processing and performance.
• Participate in code and design reviews and own larger service areas.

Conocimientos

Backend development Go

Backend development Java

APIs

Distributed systems concepts

Testing

Version control

Herramientas

AWS

Redis

DynamoDB

PostgreSQL

Event-driven architecture

Descripción del empleo

Open Digital Services in Madrid is seeking a Backend Software Engineer to join our hybrid/remote team within Spain. You will build backend services and secure APIs, shaping secure customer journeys and scalable infrastructure.

You will work with senior engineers to turn requirements into maintainable designs, improve testing and documentation, and contribute to data modelling, caching, and observability with strong Go or Java skills and English language proficiency.