Security Engineer (m/f/d)

About us:

Your responsibilities

• Tooling: Build and maintain tooling that powers our security reviews, including our in-house fuzzing framework and static/dynamic analysis pipelines.
• Code audits: Conduct attacker-mindset code audits across enterprise and Web3 systems, including blockchain runtimes and smart contracts, using and extending our fuzzing framework.
• AI & agentic security: Assess AI/LLM-powered applications and agentic systems for exploitable weaknesses (e.g. prompt injection, insecure tool use, data leakage) and explore how AI can be used to augment our own audits and tooling.
• Reporting: Produce high-quality technical reports and presentations.
• Client advisory: Advise clients on SDLC improvements, verify remediations, and help track risk-reduction KPIs
• Remediation: Work closely with client developers of the client project team to report and remediate the discovered issues
• Community & training: Participate in hacking exercises, contribute to our Security Ambassador program, and conduct developer trainings

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What do you bring?

• Security fundamentals: Understanding of software security fundamentals, secure architecture, and threat modeling across enterprise and Web3/blockchain systems.
• AI/LLM security: Curiosity about AI/LLM security risks (prompt injection, model or data exfiltration, agentic tool misuse) or hands-on experience probing AI systems.
• Vulnerability research: Track record of finding and exploiting real-world vulnerabilities (CTFs, bug bounties, pentests, or independent research): this role is for hands-on ethical hackers, security engineers.
• Tooling & automation: Strong ability to automate and build tools for security review (static/dynamic analysis, fuzzing, CI integrations.
• Communication: Excellent communication skills in English and German is a plus.
• Languages: Familiarity with RUST, C/C++, GO and solidity are a plus.
• Consulting mindset: Comfortable advising clients directly, explaining risk clearly, and guiding remediation.
• Hacker mindset: A passion to grow in security.

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What awaits you with us?

• Unique opportunity to join the world of cybersecurity in Berlin
• Diverse team of motivated Security Experts with people from many countries
• A wide range of benefits: discounts on gym membership, public transport (BVG pass), German lessons
• Annual company retreat
• Further education, training, and certificate opportunities
• Opportunity to contribute to research
• Flexible home office
• 30 days of paid vacation

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Apply now