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# Staff Backend Product Engineer - End-To-End Integrations - €90.000 - €140.000 A Year

- **Company:** E-Invoicing Platform
- **Location:** Madrid, Spain (Remote available)
- **Salary:** €90,000.0 - €140,000.0
- **Contract:** Permanent contract
- **Skills:** Systems Integration, Backend, Build Management
- **Published:** September 20, 2026
- **Apply:** https://www.buscojobs.com.es/staff-backend-product-engineer-end-to-end-integrations-%E2%82%AC-90-000-%E2%82%AC-140-000-a-year-en-madrid-ID-371952220

## About the Role

A leading e-invoicing platform in Madrid is seeking a Staff Backend Product Engineer to own integrations end-to-end.Para presentar una candidatura, simplemente lea la siguiente descripción del puesto y asegúrese de adjuntar los documentos pertinentes.In this role, you will design and build backend systems while mentoring others, engaging with customers, and supporting product decisions.Candidates should have over 10 years of backend experience, strong product judgment, and fluent English.

## Description

A leading e-invoicing platform in Madrid is seeking a Staff Backend Product Engineer to own integrations end-to-end.Para presentar una candidatura, simplemente lea la siguiente descripción del puesto y asegúrese de adjuntar los documentos pertinentes.In this role, you will design and build backend systems while mentoring others, engaging with customers, and supporting product decisions.Candidates should have over 10 years of backend experience, strong product judgment, and fluent English.xhfqzwm This position offers a competitive salary between €90k and €140k plus stock options and the flexibility to work remotely with office attendance required a few days each month.#J-*****-Ljbffr