Ceridwen.ai

Security Engineer

Full-Time  |  Remote (US)  |  Equity + Salary Upon Revenue

The Role

You harden MABOS against every adversarial input the world can throw at it. Prompt injection, model manipulation, cognitive state poisoning, session hijacking, attestation spoofing. You think like an attacker so users don’t have to.

What You'll Do

  • Identify and mitigate security vulnerabilities across the MABOS architecture
  • Harden cognitive session management against adversarial attacks
  • Implement security controls for MABOS Cloud multi-tenant infrastructure
  • Build automated security testing into CI/CD pipelines
  • Develop threat models for novel attack vectors specific to cognitive architectures

Requirements

  • 5+ years in application or systems security engineering
  • AI/ML security experience. Prompt injection, adversarial inputs, model extraction
  • Strong programming skills in Rust, Python, or C
  • Memory safety, cryptographic primitives, and secure system design
  • You’ve found a vulnerability that surprised the team that built the system

Compensation

All positions include equity in Ceridwen.ai. Salaries are TBD and will be determined based on role scope, experience, and what you bring to the table. We will not insult you with a lowball offer, and we expect you not to waste our time with inflated expectations disconnected from contribution.

The Builder Clause

We don't care where you went to school. We don't care if you went to school. Our founder is self-taught, started coding at 13, and built a 602,000-line cognitive architecture without a CS degree.

Meet the qualifications, or show us what you've built. Either path works. Both paths demand excellence.

Apply

Ready to move? Send a short note of relevant proof-of-work — past shipped projects, metrics you moved, or a draft of your first 30 days.