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Staff Product Engineer

Madrid💼 Full-time💰 $90,000–$90,000🗓 2026-08-06 → 2026-10-01

Core

Own end-to-end integrations for a global e-invoicing platform, researching regulations, designing systems, and shipping solutions for customers across 25+ countries.

Role type

Staff Backend Product Engineer

Builds

Modular integration services (Apps) for tax reporting, ERP synchronization, and document transformation

Domain

Fintech / E-invoicing / Global compliance

Required skills

Backend system design, distributed systems, product judgment, customer empathy, technical leadership, regulatory research

Preferred skills

Go (Golang), cloud-native architecture, mentorship

Technologies

Go, NATS, CQRS, Kubernetes, GCP

Responsibilities

Investigate new countries and systems by reading regulations and consulting experts; Design and build integrations in Go on top of modular architecture; Drive product decisions and scope trade-offs; Support customers and iterate based on feedback; Mentor engineers and review PRs

Seniority

Staff, hands-on IC with strategic influence

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