Codeforces Problem Setter

Remote, Worldwide

Job Title: Codeforces Problem Setter

Job Type: Contractor (15hrs+ a week)

Location: Remote

Opportunity Snapshot

Pay: $30 - $100

Commitment: 15+ hours per week

Location: Fully remote

You’ll need: Strong competitive programming background and advanced C++

Your tasks: Create original competitive programming problems with reference solutions and robust test suites

You’ll create Reinforcement Learning Environments that test a model’s ability to solve hard algorithmic problems. Each task means writing an original problem that doesn’t exist on any online judge, a correct reference solution, and a test suite strong enough that a wrong solution fails.

What you’ll do

Design original competitive programming problems, absent from Codeforces, AtCoder, and all other judges.

Write a correct reference solution and verify it against the constraints.

Build a robust test suite: edge cases, maximum constraints, and tests that break plausible wrong approaches.

Implement checkers for problems with multiple valid outputs.

Document the problem’s intended solution, complexity, and the reasoning behind your test cases.

Review problems from other contributors for correctness and test...