We are looking for a Competitive Programming Expert — Problem Author to create challenging algorithmic problems and supporting content used to train advanced AI coding models. The adecuado candidate has a strong, proven competitive programming background, demonstrated through a Codeforces rating of 2200+ or equivalent IOI, ICPC, or olympiad achievement. You should be highly proficient in contest-level C++ and comfortable with Python, algorithms, data structures, and designing adversarial test cases. This role is particularly well suited for top competitive programmers who enjoy creating difficult problems and finding subtle ways solutions can fail.

Key Responsibilities

Create original competitive programming problems with clear statements, sound constraints, and well-defined intended solutions.
Write correct reference solutions in C++ and Python.
Create realistic deliberately-wrong solutions representing common algorithmic mistakes.
Design and harden test cases, including edge cases, generators, stress tests, and adversarial/"hacking" tests.




Analyze incorrect solutions and design inputs that expose subtle bugs or incorrect assumptions.
Define appropriate constraints and test coverage to ensure problems meet the intended difficulty.
Write validators, checkers, or other supporting tools when needed.
Collaborate with other problem authors and reviewers to ensure the correctness and quality of problem packages.

Core Requirements

Strong competitive programming background demonstrated through a public Codeforces profile or equivalent achievement.
Competitive programming ability and a proven track record are key.
Codeforces rating of 2200+ or equivalent IOI, ICPC, national olympiad, or other recognized competitive programming achievement.
Expert-level knowledge of algorithms, data structures, and complexity analysis.
Fluent in contest-level C++, including STL and performance/complexity considerations.
Comfortable writing Python for algorithmic problem solving and testing.

📌 Competitive Programming Expert — Problem Author (Chile)
🏢 Kake
📍 Chile