Competitive Programming Expert - Freelance AI Trainer

Mindrift All jobs
Remote Barcelona, Catalonia, Spain, Madrid, Community of Madrid, Spain, València, Valencian Community, Spain
1 day(s) ago
Job Overview
Company Mindrift
Job Type parttime
Category Creator (Writer)
Last Seen 1 day(s) ago

Job Description

"Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies focused on testing evaluating and improving AI systems. Participation is project-based not permanent employment. What this opportunity involves We re building competitive-programming problems and their automatic graders (test cases + checkers) used to train advanced AI coding models. You ll create problems write both correct and deliberately-wrong solutions and design the tough test cases that catch subtly-broken code. Your work is what makes the training signal trustworthy. To apply share your competitive-programming handle(s) + current/peak rating any problem-setting experience and IOI/ICPC/olympiad history. What you ll do Write original algorithmic problems — clear statement sound constraints an intended solution Write correct solutions in C++ and Python Write realistic wrong solutions (common mistakes) to test against Build and harden test cases generators edge cases stress and ""hacking"" tests Write checkers/interactors (testlib) for problems with more than one valid answer Confirm the quality bar correct solutions pass wrong ones fail within time limits.

What we look for

Strong competitive programming background shown by a public profile — a Codeforces rating (see levels below) OR an IOI / ICPC / national-olympiad record Fluent contest C++ (STL complexity) comfortable writing Python Can explain why a solution is wrong and build an input that breaks it Strong written English (C1+). Levels (by Codeforces rating or equivalent olympiad achievement) Associate — 1700–2100 (Expert / Candidate Master) easier problems Expert — 2200–2600 (Master / Grandmaster) harder problems Senior / Reviewer — 2600+ (Int l Grandmaster) or IOI/ICPC medalist hardest problems + quality review.

Nice to have

IOI / ICPC alumni and top competitive programmers especially encouraged to apply Experience setting or testing problems for real contests (Codeforces rounds ICPC national olympiads online judges) Testlib experience (checkers validators generators) Experience creating data for LLM code benchmarks or similar RL / evaluation datasets. How it works Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid Project time expectations For this project tasks are estimated to require around 10-20 hours per week during active phases based on project requirements. This is an estimate not a guaranteed workload and applies only while the project is active. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.

Compensation

Paid per accepted task. Your rate depends on the qualification tier you reach and how efficiently you complete tasks — up to the equivalent of $90/hr . Because payment is per task a faster pace raises your effective hourly rate."

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