Competitive Programming Expert - Freelance AI Trainer

Mindrift connects specialists with project-based AI opportunities focused on testing, evaluating, and improving AI systems for leading tech companies.

• Strong competitive programming background shown by a public profile (Codeforces rating or IOI/ICPC/national olympiad record).
• Fluent contest C++ (STL, complexity); comfortable writing Python.
• Ability to explain why a solution is wrong and build inputs that break it.
• Strong written English skills (C1+).

Nice to have:

• IOI/ICPC alumni and top competitive programmers encouraged to apply.
• Experience setting or testing problems for real contests (e.g., Codeforces rounds, ICPC, national olympiads, online judges).
• Testlib experience (checkers, validators, generators).
• Experience creating data for LLM code benchmarks or similar RL/evaluation datasets.

• Write original algorithmic problems with clear statements and sound constraints.
• Write correct solutions in C++ and Python.
• Write realistic wrong solutions to test common mistakes.
• Build and harden test cases using generators, edge cases, stress, and "hacking" tests.
• Write checkers/interactors (testlib) for problems with multiple valid answers.
• Confirm that correct solutions pass and wrong ones fail within time limits.

Project-based participation; not permanent employment. Application requires submitting CV in English with English proficiency level indicated. Tasks require approximately 10-20 hours per week during active phases, with deadlines and acceptance criteria. Location: Poland or remote.