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# Remote Senior Backend Engineer - Build Scalable Systems

- **Company:** Affirm, Inc.
- **Location:** Zaragoza, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Cloud Computing, Python (Programming Language), PostgreSQL, MongoDB, MySQL, Node.Js, Backend, Front End Software Development, Restful APIs
- **Published:** November 13, 2026
- **Apply:** https://www.jobleads.com/es/job/remote-senior-backend-engineer-build-scalable-systems--zaragoza--ec6e5ba9208ada3719c2d0b18b591ab6c

## About the Role

The role requires 5+ years of backend experience and proficiency in languages such as Python, Java, Node.js, or Go. Experience with PostgreSQL/MySQL, MongoDB, RESTful APIs, and cloud platforms is essential.

## Description

Affirm, Inc. is seeking a Senior Backend Engineer to design, build, and scale robust backend systems for a fully remote engineering team. You will design, test, and deploy features, collaborating with product managers, designers, and frontend engineers to deliver high-quality software.

The role requires 5+ years of backend experience and proficiency in languages such as Python, Java, Node.js, or Go. Experience with PostgreSQL/MySQL, MongoDB, RESTful APIs, and cloud platforms is essential.