Senior Software Security Engineer, AI Training (Remote, 3 months)

We're hiring senior software security engineers for a 3-month remote contract building security tasks that train and test frontier AI coding models.

What you'll do

• Take real vulnerabilities (CVEs, security advisories, bug reports) from open-source projects and reproduce them

• Classify each one (CWE, OWASP Top 10) and write proof-of-vulnerability tests

• Build Docker-based audit-and-patch tasks in Python, JS/TS, Java, C/C++, C#, Go, Rust, Ruby, PHP, Kotlin or Swift

• Harden the tests so AI models can't game them, and score AI-written patches

You need

• 5+ years of professional software engineering

• Expert in at least one of the languages above

• A strong grasp of CWE, CVE and the OWASP Top 10

• Hands-on work with sanitizers, fuzzers or static analysis (CodeQL, Semgrep)

• Git, Linux, Bash and