Senior Quality Assurance Engineer (f/m/d)

ZEAL Network SE is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24. As Germany’s largest digital lottery operator and a trusted partner of Spain’s ONCE, we are passionate about shaping the future of lottery experiences.

Freiheit+ is one of ZEAL's new German state-licensed social lottery that gives participants the chance to win €5,000 every month for 15 years, plus a one-time prize of €250,000. Every ticket sold supports educational projects, with at least 30% of proceeds directly funding initiatives for a good cause. Freiheit+ perfectly combines the dream of lifelong financial freedom with the opportunity to make a real difference, reflecting ZEAL’s commitment to offering innovative, socially impactful lottery experiences.

As a Senior Quality Assurance Engineer (f/m/d), you'll be the guardian of product quality, ensuring our solutions meet the highest standards throughout the entire development lifecycle.

Your tasks

• Technically design, develop and maintain automated tests, complemented by manual and exploratory testing, continuously growing our E2E test coverage in step with the product.
• Collaborate within a dynamic, cross-functional team including a Product Owner, Software Engineers and a Designer in our agile environment, actively contributing to the development of new products and frontends.
• Own, shape and refine our test strategies for the frontend, prioritizing based on risk and business impact, with a keen focus on delivering a seamless user experience for our customers while preventing any unwelcome surprises.
• Proactively communicate test coverage, quality status and risks, enabling the team to make informed delivery decisions.
• Act according to security, usability, and performance best practices to guarantee a superb user experience.
• Own, expand and nurture our E2E test pipeline, keeping it stable, fast and reliable, and enabling tests for other teams while offering our own tests for integration into their pipelines.
• Continuously improve our tests using new technologies and approaches.
• Build a solid functional and high-level technical understanding of company-wide processes to effectively test complex user flows and identify edge cases.

What you offer us

• Several years of experience and a strong background in testing web applications.
• Extensive hands-on experience in creating and maintaining automated frontend tests.
• Thinking outside the box and exploring multiple ways to test, including E2E UI tests, accessibility, page performance, and more.
• Active communication and collaboration with other QAs to share knowledge, exchange best practices, and learn from each other.
• Proficiency in the Playwright test framework using TypeScript, or comparable hands-on experience with other modern E2E frameworks such as Cypress.
• Experience in maintaining and improving CI/CD test pipelines, including diagnosing and resolving flaky tests.
• A solid grasp of working within a microservices environment where features are frequently and rapidly released (continuous delivery).
• An enthusiasm for collaborative work within self-organized teams, coupled with the willingness to take full ownership and responsibility for quality topics.
• A proactive communication style and excellent communication skills in English, fostering a collaborative and cooperative atmosphere; German is appreciated but not required.

What we offer

• 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!

Sounds exciting? Great! We're looking forward to receiving your online application.