Backend QA Engineer, Madrid at Air Apps
May no longer be active — verify on the employer site
At a glance
- Company
- Air Apps
- Location
- Spain
- Work arrangement
- On-site
- Employment type
- Full-time
- Experience
- 2–5 years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
- Added to The Stack
✨ The Stack take on this Air Apps job
- 🏢 Air Apps has 73 jobs here, 73 with visa sponsorship see all
- 🛂 Visa: Highly Qualified Professional permit. Education: Higher education degree guide
- 💡 No salary shown. Ask Air Apps if it is above the minimum.
Updated 2026-11-05, from our data and official sources.
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About the role
Responsibilities:
- Create and run test plans for backend services: API endpoints, data flows and integrations.
- Validate REST API behavior and performance with Postman/Swagger and automated checks.
- Test database queries, migrations and data integrity in PostgreSQL or similar systems.
- Develop and maintain automated test suites integrated into CI/CD pipelines.
- Review PRs for test coverage, edge cases and reliability issues.
- Record and manage defects, test cases and results using TestRail or comparable tools.
- Work with engineers and product owners to raise quality standards and reduce regressions.
Requirements:
- ~2–3 years of experience in backend testing, QA or development-in-test.
- Experience with Node.js and TypeScript in backend contexts.
- Strong SQL/PostgreSQL knowledge and hands-on database validation experience.
- Familiarity with API testing tools (Postman, Swagger) and test management platforms.
- Practical experience writing automated tests and integrating them into CI workflows.
- Clear communication, attention to detail and collaborative mindset.
Responsibilities
The Backend QA Engineer will design and execute tests for backend systems, including APIs, databases, and service integrations. They will also collaborate with engineering teams to review code, maintain automated tests, and ensure high-quality standards across the infrastructure.
Requirements
The ideal candidate has 2–3 years of experience in backend testing or software development with proficiency in Node.js, TypeScript, and SQL databases. Strong attention to detail and experience with API testing tools like Postman or Swagger are essential for this role.
Key skills
- Backend testing — in 24 other listings on The Stack
- Node.js — in 172 other listings on The Stack
- TypeScript — in 467 other listings on The Stack
- PostgreSQL — in 296 other listings on The Stack
- API testing — in 45 other listings on The Stack
- REST APIs — in 63 other listings on The Stack
- Postman — in 37 other listings on The Stack
- Swagger — in 11 other listings on The Stack
- TestRail
- Database integrity
- Test automation
- Code review
- Infrastructure review
- Integration testing
- Problem-solving
- Cross-functional collaboration
On The Stack (as of 2026-11-05)
Frequently asked questions about Air Apps
Is this Backend QA Engineer, Madrid role still open?
It was posted on 2026-04-16. Listings more than 30 days old may no longer be active, so check Air Apps's site before applying.
Does Air Apps offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Air Apps's site.
Where is this role located?
The listing gives the location as Spain. It is marked on-site.
What skills does this role ask for?
The listing names: Backend testing, Node.js, TypeScript, PostgreSQL, API testing, REST APIs, Postman, Swagger, TestRail, Database integrity, Test automation, Code review, Infrastructure review, Integration testing, Problem-solving, Cross-functional collaboration.