Backend / API Engineers (Mid to Staff level) – Fintech Platform (Madrid / Hybrid)

Position

We’re hiring 4 Backend Engineers (Mid, Senior, Staff levels) to join a high‑impact API Platform team building scalable, self‑serve infrastructure used by 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.

Location

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

Salary

€40K – €90K + bonus + benefits (depending on experience level: Mid, Senior, Staff)

About the team

You’ll join an API Platform team focused on:

• Building a modern, scalable API surface used by external clients and internal teams
• Creating self‑service capabilities, including instant API credential provisioning
• Launching and expanding a new API sandbox environment for clients
• Improving performance, observability, reliability, and developer exp...