Backend Security Engineer

Stack

Responsibilities

• ▹Create realistic, interesting and challenging coding tasks for AI to solve, involving feature implementation and bug fixes
• ▹Implement deterministic verifiers that accept reasonable valid solutions and reject everything else

Requirements

• ▹Strong backend experience in Java, Node.js, Go, Rust, TypeScript, Python, C++ or similar
• ▹A track record building scalable services and APIs
• ▹Comfort with debugging, performance work and automated testing
• ▹Solid code review instincts
• ▹A cybersecurity or SecOps background is a big plus — secure coding, appsec, pentesting, vulnerability assessment, OWASP/CWE, or security-focused reviews

Nice to have

• ▹Proven experience in backend development, with a track record of delivering high-quality and performant projects
• ▹Background in cybersecurity, such as penetration testing, vulnerability assessment, or security code reviews
• ▹Demonstrated success in identifying and resolving software bugs and system bottlenecks
• ▹Experience with codebase refactoring and implementing complex features in large-scale applications
• ▹Strong understanding of algorithms, data structures, and foundational computer science concepts
• ▹Excellent analytical, problem-solving, and technical communication skills

Soft skills

What we offer

• ▹Flexible schedule, you pick the hours and days (including weekends if desired)
• ▹Output-based compensation, paid per task that meets project specifications