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

ZEAL Network SE

Job Overview

Location

Hamburg

Job Type

Full-time

Full Job Description

📋 Description

• 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.
• 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).
• Advocate for a player-first quality mindset, helping the team prevent critical issues that could impact the game experience or platform reputation.
• Practical experience in testing online games, ideally including slot games, scratchcards, or instant-win mechanics. iGaming industry experience is highly desirable.
• A solid understanding of game testing challenges, including randomness, animations, math models, and edge-case scenarios.
• Familiarity with basic probability and mathematics used in slot game design (e.g., RTP, volatility, win frequency) is a strong plus.
• Proficiency with Playwright and TypeScript or similar frameworks for frontend automation.
• Experience in manual exploratory testing—you know how to think like a player and uncover hidden issues.
• Understanding of QA standards and compliance requirements for regulated markets (e.g., Germany, UK, MGA).
• Strong collaboration skills and a proactive mindset—you’re ready to take ownership of quality in a fast-moving team.
• Strong English skills are required for collaboration within the team.
• Fluency in German is a nice-to-have.
• State-of-the-art technologies and an agile environment (Check our Tech Radar: https://lotto24.github.io/tech-radar/)
• A modern, dynamic culture grounded in the success of a leading-edge e-commerce company.
• A talented team of ambitious, like-minded colleagues where your knowledge and ideas truly make an impact.
• Ongoing personal growth, supported by an annual development budget of €1,500 to invest in your professional development.
• Trust and autonomy, no micromanagement, just confidence in your ability to deliver and excel.
• Flexible work options with a hybrid setup focused on results.
• Unlimited vacation days in addition to your yearly 30-day vacation allowance.
• Opportunity for workations abroad using our WorkFlex tool.
• Monthly mobility allowance of €30 to use on the mobility option of your choice (e.g., the Deutschlandticket), plus access to a company bike leasing program.
• Company pension scheme, provided in partnership with Degura, to support your future financial security.
• Subsidized EGYM WELLPASS membership, with a contribution of only €25 per month, giving you access to a wide range of gyms and sports options across Germany.
• Quarterly company events, along with regular team activities and informal gatherings, a favorite being our Healthy Tuesday lunches or Treat Thursdays in the office!

🎯 Requirements

• Practical experience in testing online games, ideally including slot games, scratchcards, or instant-win mechanics.
• A solid understanding of game testing challenges, including randomness, animations, math models, and edge-case scenarios.
• Familiarity with basic probability and mathematics used in slot game design (e.g., RTP, volatility, win frequency).
• Proficiency with Playwright and TypeScript or similar frameworks for frontend automation.
• Experience in manual exploratory testing.
• Understanding of QA standards and compliance requirements for regulated markets.

🏖️ Benefits

• State-of-the-art technologies and an agile environment.
• A modern, dynamic culture grounded in the success of a leading-edge e-commerce company.
• A talented team of ambitious, like-minded colleagues.
• Ongoing personal growth, supported by an annual development budget.
• Flexible work options with a hybrid setup.
• Unlimited vacation days.
• Opportunity for workations abroad.
• Monthly mobility allowance.
• Company pension scheme.
• Subsidized EGYM WELLPASS membership.
• Quarterly company events.

Skills & Technologies

TypeScript

GitHub

Senior

Hybrid

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ZEAL Network SE

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About ZEAL Network SE

ZEAL Network SE is a German publicly-listed lottery brokerage and gaming services company founded in 1999. It operates web and mobile platforms that allow customers to place bets on state-licensed lotteries such as Lotto 6aus49, Eurojackpot and Keno, and provides related data, marketing and technology services to lottery operators. With headquarters in Hamburg and a workforce of about 200, the company is licensed and regulated in Germany and focuses on expanding secure, responsible online lottery participation across Europe.

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