QA Backend Engineer

Rybnik / Remote

Applying!

QA Backend Engineer

Our projects are long-term partnerships with clients who stay with us for years. Why? Because we deliver solutions that genuinely solve their business problems. At fireup.pro, as a QA Engineer, you will design and test systems that have a real impact on how businesses operate, from complex logistics platforms to advanced industry-specific systems, including solutions for the healthcare sector. You will be responsible for designing, implementing, and overseeing testing processes at multiple levels: from automated API tests, through manual testing of mobile applications, to performance testing of systems that depend on multiple projects and technology stacks.

You will be responsible for:

Designing, building, and maintaining automated tests using the development team’s stack (Java, Spring, RestAssured, Python)
Automating API tests and developing a strategy to increase automated test coverage
Performing manual API testing (Postman) and testing mobile applications on physical devices and emulators (Android Studio)
Designing and running performance tests with JMeter and k6, including tests of dependent services from other projects
Analyzing network traffic and request/response communication using Charles Proxy
Analyzing and reporting defects and preparing detailed test reports
Maintaining a stable and reliable test suite, analyzing failed tests, and identifying flaky tests
Working with product and development teams to define acceptance criteria and ensure the testability of new features
Using AI tools (e.g. Claude Code) to improve testing work while maintaining high standards of quality and security
Sharing testing best practices with other QA Engineers and Developers

We expect:

5+ years of experience as a QA Engineer, including experience in test automation
Hands-on knowledge of Java and experience with RestAssured for API testing (knowledge of Spring is a strong advantage)
Programming or scripting skills in Python
Experience in API testing with Postman
Experience testing mobile applications on physical devices and emulators (Android Studio)
Experience preparing and running performance tests with JMeter and/or k6
Ability to analyze network communication using Charles Proxy or similar tools
Experience with version control systems (Git/GitHub) and tools such as JIRA and Confluence
Good understanding of Agile/Scrum methodology
Very good command of English and confidence communicating in an international environment
Openness to using AI tools in everyday QA work

We will additionally appreciate:

Experience integrating automated tests into CI/CD pipelines (e.g. GitHub Actions)
Knowledge of security, privacy, or medical device regulations, such as HIPAA or GDPR
Knowledge of SQL and experience with database data validation
Experience with mobile test automation (e.g. Appium)
Certifications such as ISTQB or similar

What we offer:

Employment based on your preferred form of cooperation (UoP/B2B).
Hybrid work model (📍 Rybnik) with flexible conditions – you decide whether you work remotely or from the office.
Modern equipment and support from an experienced team.
Skill development opportunities through training and language courses.
Attractive benefits: MultiSport card, private medical care (PZU), and many more.
Company breakfasts and lunches 🍎 twice a week.
Free parking.