Senior Software Security Engineer - AI Training

About the role

This remote freelance project asks a senior engineer to help develop realistic security challenges that evaluate how advanced AI coding models identify and fix software vulnerabilities. The work covers vulnerability research, reproducible testing and technical review across open-source software. The expected engagement is three months, with 40 hours per week available, including four hours of overlap with Pacific Time; the team wants someone who can start soon.

Key responsibilities

• Investigate vulnerabilities from CVEs, security advisories, bug reports and open-source repositories.
• Reproduce security issues and build tests that demonstrate the vulnerability and validate a secure fix.
• Create audit-and-patch tasks with reproducible Docker environments and clear instructions.
• Develop robust verifiers that resist hardcoded solutions and test manipulation.
• Review AI-generated patches and reasoning, and document technical findings.

Required profile

• 5+ years of professional software engineering experience.
• Expert proficiency in at least one of Python, JavaScript/TypeScript, Java, C/C++, C#, Go, Rust, Ruby, PHP, Kotlin or Swift.
• Strong knowledge of CWE, CVE and the OWASP Top 10, with experience reproducing vulnerabilities and writing security tests.
• Hands-on experience with sanitizers, fuzzers and static analysis tools such as CodeQL or Semgrep.
• Clear technical writing and the ability to work independently.

Required skills

• Git, Linux, Bash and Docker.
• At least one of the languages listed above.

Selection includes a technical interview of about one hour. Pay is $15 USD per hour.