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Backend QA Engineer, Berlin

Air Apps· Engineering
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Remote€52k - €65kFull-timePosted 6mo ago

About the role

Backend QA Engineer focused on testing APIs, databases, and backend services to ensure reliability, performance, and scalability. Collaborative role with engineers; requires Node.js/TypeScript backend experience and test automation.

Responsibilities

  • Design and execute tests for backend systems, including APIs, databases, and service integrations.
  • Validate API functionality and performance using tools such as Postman, Swagger, or similar platforms.
  • Test and verify database operations, queries, and data integrity in systems using PostgreSQL or similar relational databases.
  • Collaborate with engineering teams to review pull requests, ensuring code quality and test coverage.
  • Support the development and maintenance of automated tests for backend services.
  • Participate in reviewing backend infrastructure and identifying potential reliability or performance issues.
  • Document and track defects, test cases, and test results using test management tools such as TestRail or similar systems.
  • Work closely with developers and product teams to improve testing strategies and overall product quality.

Qualifications

  • Approximately 2–3 years of experience working with backend technologies, testing, or software development in test roles.
  • Experience with Node.js and TypeScript in backend environments.
  • Familiarity with SQL databases, particularly PostgreSQL, and experience validating database queries and data integrity.
  • Experience testing REST APIs using tools such as Postman, Swagger, or similar API testing tools.
  • Understanding of backend testing practices, including API testing, database testing, and integration testing.
  • Familiarity with test management tools such as TestRail or comparable platforms is beneficial.
  • Comfort reviewing pull requests and backend architecture changes to help ensure quality standards.
  • Strong attention to detail, problem-solving skills, and the ability to collaborate with cross-functional teams.

Skills

Required:Backend testingNode.jsTypeScriptREST API testing

Benefits

  • Annual Bonus
  • Top-tier Health and Life Insurance for peace of mind.
  • Transportation Budget to support your commute needs.
  • Coverflex benefits package for meal allowances, well-being, and more.
  • Urban Sports Club membership to keep you active.
  • Meals 100% free at the office.
  • Pension Fund to support your long-term financial planning.
  • Annual Conference: an opportunity to meet the team, collaborate, and grow together.
  • Apple hardware ecosystem for work.
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Air Apps

Where AI Meets AR to Empower Your World.

Air Apps is a company that integrates AI and AR technologies to create innovative applications for productivity, fitness, creativity, and learning.

aiarproductivityfitnesscreativitylearning
Company profileWebsite

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