Software Engineer, Java (Identity Platform)

Software Engineer, Java (Identity Platform)

Barcelona, Spain

Your mission

Modernise and scale the core systems that power user identity, authentication, onboarding and compliance across the entire platform. You’ll work on high-impact initiatives ranging from decomposing legacy monoliths and migrating critical user-domain services, to building modern authentication infrastructure, audit‑ready compliance systems and secure developer access tooling. Operating at the intersection of backend engineering, security, compliance and platform architecture, you’ll solve complex technical challenges that directly influence scalability, regulatory readiness and customer trust. This is a unique opportunity to shape foundational infrastructure in one of Europe’s most fast-moving fintech environments.

What you’ll do

• Design and develop scalable backend services using Java within an event‑driven microservices architecture while helping migrate cr...