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# Senior Backend Engineer - Test Platform & Automation

- **Company:** Affirm
- **Location:** Sevilla, Spain
- **Contract:** Permanent contract
- **Skills:** Mockito, Test Data, Backend, Build Management
- **Published:** August 8, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-test-platform-automation-en-sevilla-ID-365843718

## About the Role

Affirm is hiring a Senior Software Engineer, Backend (Test Enablers) to design and build scalable testing infrastructure.

## Description

Affirm is hiring a Senior Software Engineer, Backend (Test Enablers) to design and build scalable testing infrastructure.You will work on synthetic identities, test data seeding, mocking, and deterministic validation workflows to enable faster, safer testing across engineering teams.You will lead critical platforms, drive reliability and observability, and mentor peers while shaping testing strategy and contributing to RFCs and design reviews.#J-*****-Ljbffr


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