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The Role We are looking for a Backend QA Engineer to help ensure the reliability, performance, and scalability of our backend systems. In this role, they will focus on testing APIs, databases, and backend services while collaborating closely with engineers to maintain high quality standards across our infrastructure. This is a fully onsite position, based in Lisbon, where you will collaborate closely with cross functional teams in person and contribute to a dynamic and fast paced environment. We are open to support with relocation efforts. The ideal candidate has approximately 2-3 years of experience working with backend technologies such as Node.js and TypeScript and enjoys combining software development practices with quality assurance. They will contribute to test design, automation, API validation, and infrastructure review while helping maintain a strong quality culture within the engineering team. 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. Requirements 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. Why Join Air Apps? (Lisbon) 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. Diversity & Inclusion At Air Apps, we are committed to fostering a diverse, inclusive, and equitable workplace. We enthusiastically welcome applicants from all backgrounds, experiences, and perspectives. We celebrate diversity in all its forms and believe that varied voices and experiences make us stronger.

A tech company in Lisbon is looking for a Backend QA Engineer to ensure the reliability and performance of backend systems. This fully onsite position involves collaborating with cross-functional teams and contributing to a high-quality standard in testing APIs and databases. Candidates should have 2-3 years of experience with backend technologies such as Node.js and TypeScript, as well as familiarity with testing tools like Postman and SQL databases including PostgreSQL.