Why a challenge?
The challenge cuts through noise and shows who can apply knowledge under pressure. It also reflects our values: creativity, integrity, and operational rigor.
High-level overview
- Apply: Submit your CV and details to receive access to the challenge link.
- Sandboxed challenge: Complete the task inside a secure, isolated environment or provided puzzle files. No live systems are targeted.
- Prove your process: Provide a clear write-up (and where relevant, reproducible scripts or a short walk-through video).
- Verification: Our team reviews submissions. Accepted candidates receive next steps and our HR contact via direct email.
FAQ
- Can I attempt to break other Renngang systems?
- No. Only interact with the provided sandbox. Unauthorized activity will lead to disqualification and possible legal action.
- What if I find a vulnerability in the sandbox?
- Report immediately through the responsible disclosure channel. Don’t exploit it.
- How long is the challenge valid?
- Each challenge window is time-boxed and will be stated up-front on the application page.
Apply
Ready to prove your skill? Use the form below to submit a CV and basic details. Successful submissions to the challenge that meet our criteria will be contacted directly by HR.