(Senior) Quality Assurance Engineer (f/m/d)

Job description

ZEAL Network SE is an international group shaping the future of digital lotteries and dream-driven experiences. As Germany’s leading online lottery provider through LOTTO24 and Tipp24, and a partner of Spain’s ONCE, ZEAL combines innovation, technology, and entertainment to inspire millions of customers. With ventures such as Freiheit+, Traumhausverlosung, Traumautoverlosung and ZEAL Ventures, the company also invests in new business models and emerging e-commerce brands. Driven by a diverse team of 350+ professionals, ZEAL fosters a collaborative, ambitious culture focused on turning dreams into reality. As a (Senior) Quality Assurance Engineer (f/m/d) in our Games Production Team , you will ensure the quality, functionality, and security of our growing portfolio of slot games, instant-win games, and scratchcards. Your work plays a critical role in delivering a reliable and enjoyable experience for players, while also upholding regulatory compliance and safeguarding the integrity of our gaming platform. You’ll help establish and continuously improve QA practices that make our games robust, testable, and ready for release in regulated markets. Your tasks: Design, build, and maintain automated test suites tailored for slots, instant-win games, and scratchcards, while performing manual testing during development and release phases. Define and evolve test strategies that address the unique challenges of game testing — including animations, UI responsiveness, game state complexity, and random outcomes. Collaborate with Game Developers, Game Designers, and Artists in a creative and agile environment. Maintain structured test documentation, including test plans, bug reports, and regression checklists. Execute cross-device and cross-browser testing to validate performance, consistency, and responsiveness across platforms. Ensure compliance with regulatory standards, and support certification-related QA tasks such as preparing test evidence or assisting with audits for relevant jurisdictions (especially Germany). Prior knowledge is a plus, but can also be acquired on the job. Advocate for a player-first quality mindset, helping the team prevent critical issues that could impact the game experience or platform reputation. What you offer us: Practical experience in testing online games, ideally including slot games, scratchcards, or instant-win mechanics. iGaming ind…