Codeforces Problem Setter (English)

The work

You will create original algorithmic challenges for use in AI model evaluation. Your work will turn advanced programming ideas into clear problem statements, verified solutions, and tests that separate correct answers from plausible but incorrect ones.

• Design competitive programming problems that are not already available on online judges.
• Write and validate reference solutions in advanced C++ against stated constraints.
• Build tests for edge cases, maximum limits, and common incorrect strategies.
• Implement checkers when a problem allows multiple valid outputs.
• Document intended solutions, complexity, and the reasoning behind test coverage.
• Review contributed problems for correctness, ambiguity, unintended solutions, and test quality.

What it pays and takes

This is a fully remote, part-time contractor role. You will work independently and meet deadlines while contributing to AI training and model evaluation.

• Pay: $45 to $65 per hour equivalent, paid per task that meets the project specifications.
• Time: At least 15 hours and less than 20 hours per week.
• Location: Open to candidates in Algeria, Argentina, Austria, Bahrain, Bangladesh, Belgium, Brazil, Canada, Chile, Colombia, Denmark, Egypt, France, Germany, Ghana, Greece, India, Indonesia, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Lebanon, Malaysia, Mexico, Morocco, the Netherlands, Nigeria, Oman, Pakistan, Palestinian Territories, Peru, the Philippines, Portugal, Qatar, Saudi Arabia, Singapore, South Africa, Spain, Sri Lanka, Switzerland, Taiwan, Thailand, Tunisia, the United Arab Emirates, the United Kingdom, the United States, Uzbekistan, and Vietnam.
• Language: Clear written and verbal English.
• Skills: Demonstrated competitive programming experience and advanced C++ ability for reference solutions and checkers.
• Knowledge: Algorithms, complexity analysis, constraints, edge cases, validation, and output consistency.
• Work style: Ability to work independently and meet deadlines.
• Helpful background: Experience as a problem setter, tester, or checker on a major competitive programming platform, or a strong record of solving or evaluating advanced algorithmic problems.

How it works

You apply here in about two minutes and finish on the hiring platform. The next step is a short AI interview (technical roles include a coding challenge). Passing it is how you qualify for paid tasks, so take it soon after you are invited.

The hiring platform's application for this job asks for your resume, your LinkedIn profile, your phone number, your location and answers to 10 screening questions.

About AI training work

AI training is the human work behind artificial intelligence, including preparing examples and evaluating model behavior. Programming specialists help test whether AI systems can reason through complex code and algorithms accurately.