Backend QA Engineer at Air Apps
May no longer be active — verify on the employer site
At a glance
- Company
- Air Apps
- Location
- Copenhagen, Denmark
- Work arrangement
- Remote
- 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
Updated 2026-11-05, from our data and official sources.
Apply for this role at Air Apps
Apply with your AI assistant
With The Stack connected to Claude, ChatGPT or Cursor, paste this. Your assistant tailors your CV and cover letter, checks the visa facts and gives you the apply link.
Help me apply to this job on The Stack: https://jobs.trythestack.co/jobs/backend-qa-engineer-air-apps
Not connected yet? Connect in a minute. To help your user apply, call the MCP tool prepare_application with slug "backend-qa-engineer-air-apps": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.
About the role
Responsibilities:
- Design and execute test plans for backend systems: APIs, services and database interactions.
- Validate REST/GraphQL APIs using Postman, Swagger or similar tools; verify contracts and error handling.
- Test database queries, migrations and data integrity on PostgreSQL (SQL validation, edge cases, performance).
- Create and maintain automated test suites for integration and regression testing.
- Review pull requests for test coverage and collaborate with engineers on defect triage.
- Document and track test cases, results and defects using TestRail or equivalent test management tools.
- Participate in performance and reliability testing; contribute to infrastructure review and stability improvements.
Requirements:
- ~2–3 years experience in backend testing, QA or development-in-test roles.
- Hands-on with Node.js and TypeScript in backend contexts.
- Practical SQL skills and experience with PostgreSQL or similar relational DBs.
- Familiarity with API testing tools (Postman, Swagger) and automation frameworks.
- Experience with test management tools (TestRail) and CI/CD test integration.
- Attention to detail, good communication skills and experience collaborating with engineers to raise quality standards.
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 pull requests and maintain high-quality standards across the infrastructure.
Requirements
Candidates should have approximately 2–3 years of experience in backend testing or software development roles. Proficiency in Node.js, TypeScript, and SQL databases like PostgreSQL is required, along with experience using API testing tools.
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
- Postman — in 37 other listings on The Stack
- Swagger — in 11 other listings on The Stack
- TestRail — in 17 other listings on The Stack
- Database testing
- Integration testing
- Automation
- Code review
- Infrastructure review
- Quality assurance
- SQL
On The Stack (as of 2026-11-05)
Frequently asked questions about Air Apps
Is this Backend QA Engineer role still open?
It was posted on 2026-04-28. 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 Copenhagen, Denmark. It is marked remote.
What skills does this role ask for?
The listing names: Backend testing, Node.js, TypeScript, PostgreSQL, API testing, Postman, Swagger, TestRail, Database testing, Integration testing, Automation, Code review, Infrastructure review, Quality assurance, SQL.