We’re hiring 4 Backend Engineers (Mid, Senior, and Staff levels) to join a high-impact API Platform team building scalable, self-serve infrastructure used by both customers and internal product teams.

This is a rare opportunity to join a fast-growing fintech environment where the API is a top business priority and sits at the core of the company’s platform modernisation strategy.

Madrid (Hybrid: 4 days in office / 1 day remote )

Mid / Senior / Staff)

Improving performance, observability, reliability, and developer experience
Backend: Python, Django, REST APIs
Data: PostgreSQL, Redis
Infrastructure: AWS, Docker, Kubernetes, Terraform
IAM concepts (Keycloak or similar is a plus)
Design and build scalable backend services and APIs
Own services end-to-end (“you build it, you run it”)
Mentor more junior engineers (Senior+ levels)




Help shape a modern platform used at general scale

Strong software engineering fundamentals (algorithms, design patterns, architecture)
Comfortable working in cloud-native environments
Strong communication skills in English (international teams)
Fintech experience is highly valuable

Clear performance framework and quarterly career development reviews
~ We are a specialist tech recruitment partner working with leading product companies and fintech organisations across Europe. We focus on connecting strong engineering talent with high-impact roles where they can grow and build meaningful products .

📌 Backend / API Engineers (Mid to Staff level) - Fintech Platform (Madrid / Hybrid)
🏢 E-Frontiers
📍 Madrid