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Staff Product Engineer

Invopop· Engineering
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Madrid€90k - €140kFull-timePosted 3w ago

About the role

Staff Backend Product Engineer role at Invopop focused on end-to-end ownership of Apps (integrations) and building in Go within a modular, event-driven architecture to enable electronic invoicing across 25+ countries.

Responsibilities

  • Investigate new countries and systems: read regulations and technical docs, turn ambiguity into clear requirements, and consult local experts when needed.
  • Design and build integrations in Go on top of modular architecture (NATS, CQRS patterns, Kubernetes on GCP).
  • Drive product decisions: define what “good” looks like, choose trade-offs, cut scope when needed, and ship.
  • Support customers using your Apps and iterate based on real feedback.
  • Raise the bar across the team: review PRs, mentor engineers, and influence product and technical direction (architecture, patterns, quality).

Qualifications

  • 10+ years building backend systems (APIs, distributed systems, or complex domains). Golang is a plus, but not required.
  • Fluent English.
  • Strong product judgment: ability to scope, prioritize features, and make trade-offs under ambiguity.
  • Customer empathy: comfortable speaking with customers and translating feedback into product decisions.
  • Track record of high-agency: led projects end-to-end, improved systems over time, and mented teams through reviews, standards, and mentorship.

Skills

Required:Backend API design
Nice to have:Go

Benefits

  • Stock Options (part of compensation).
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Invopop

We help global software companies comply with local tax reporting

Invopop helps global companies like SumUp, Fever, and DeepL manage electronic invoicing across more than 25 countries through a single API. In the next five years, over 40 countries—including all EU member states—will require businesses to issue invoices electronically and report them in real-time to tax authorities. Instead of building and maintaining numerous local integrations, global companies can integrate just once with Invopop, streamlining compliance and saving time.

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