Senior Test Engineer

Vor 3 Tagen

Düsseldorf Hybrid Düsseldorf + Home Office, Deutschland tonies Vollzeit


About tonies:

tonies is the globally leading interactive audio platform for children with more than 10 million Tonieboxes and 125 million Tonies sold. The intuitive and award-winning audio system has changed the way young children play and learn independently with its child-safe, wireless, and screen-free approach. Tonieboxes have been activated in over 100 countries, the content portfolio includes around 1,400 Tonies in several languages. Since its inception, tonies has achieved significant milestones, including listing on the Frankfurt Stock Exchange in November 2021 as well as a globally present team of over 550 dedicated professionals operating from various countries.

Joining our tonies team means being part of an inspiring mission to create innovative and meaningful experiences for children around the world. Together, we're shaping the future of play, learning, and imagination.

You as part of tonies:

The success of the Toniebox is due, among other things, to complex technologies and processes that are united in one user-friendly product. Do you want to be part of this success story and play a significant role in shaping our software and electronics development? As Senior Test Engineer (all genders) you will take a leading role in ensuring the functionality and quality of our products and contribute to the satisfaction of over two million Toniebox users worldwide. If this sounds exciting to you, we look forward to hearing from you

Your tasks and responsibilities will include:
  • You lead complex, cross-domain system tests across hardware, firmware, and software.
  • You define and standardize test methods to ensure complete coverage and consistency.
  • You are responsible for the automation strategy: From designing scalable test automation frameworks to integrating them into CI/CD environments.
  • You lead system-level validation measures and synthesize data into insights for measurable improvements (product and processes).
  • You lead structured problem-solving processes across Engineering and Operations teams.
  • You ensure that cross-team feedback loops consistently lead to continuous improvement.


What we are looking for:
  • You have a completed degree in Electrical Engineering, Electronics, or a related field.
  • You bring 8+ years of professional experience in electronics and software testing.
  • You solve complex, ambiguous, and cross-functional challenges, develop frameworks, and anticipate future problems.
  • You take the lead in collaboration, ensure alignment across functions, and act as a mentor.
  • You influence direction and results across teams/functions and lead scalable initiatives.
  • You possess excellent knowledge of modern test automation (e.g., Python) and the relevant tools (Jira, Git, Testmo).
  • You are fluent in English and proficient in German (B2).
  • You can imagine supporting your team on-site in Düsseldorf 1–2 times per week.


Why tonies?
  • Global Teamwork: We collaborate across departmental and country borders on our vision to bring the Toniebox into every child's room in the world.
  • Come as you are: This applies not only to the dress code but also to everything else. Because only where you truly feel comfortable can you give your best.
  • Mobility: Choose the option that suits you best - a Deutschlandticket (public transport ticket) for unlimited mobility, a monthly contribution for an office parking space, a leasing bicycle, or a remote work subsidy.
  • Enhanced Security: Benefit from subsidies for company pension plans, occupational pension schemes, and occupational disability insurance.
  • Rest & Time Off: Enjoy 30 days of paid annual leave as well as three additional days off such as Rosenmontag, Christmas Eve, and New Year's Eve. After one year of employment, you can also use up to 10 "toniecation days" (unpaid leave days).
  • Continuous Learning: Benefit from our internal and external training opportunities as well as an individual learning budget to continuously expand your knowledge.
  • Language Learning & Relaxation: Improve your communication skills with the language learning app Babbel and find relaxation through our access to the meditation app Calm.
  • Discounts: Benefit from attractive discounts on our entire range of tonies products.


Good to know:

As part of our principles, we are committed to supporting inclusion and diversity at tonies. We actively celebrate our colleagues' different abilities, ethnicities, faith and gender. Everyone is welcome and supported in their development at all stages in their journey with us. 

We look forward to hearing from you

Sabine Schykowski
Talent Acquisition Manager

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