Competitive Programming Problem Setter - Test Design for AI Training

Remote solelyUp to $90

About this role

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.

Company at a glance

Mindrift (mindrift.ai) is the expert-sourcing platform built by Toloka, a Nebius Group (Nasdaq: NBIS) company and a global leader in data services for AI since 2014. Mindrift’s CEO and co-founder, Olga Megorskaya, launched the platform to connect domain experts — from software engineers and physicians to linguists and lawyers — with AI training projects for the world's leading technology companies.

Through Mindrift, over 10,000 professionals across 50+ domains and 15+ languages contribute to supervised fine-tuning, reinforcement learning from human feedback (RLHF), model evaluation, and red-teaming for frontier AI models developed by leading global technology companies.

Operated by Toloka from Amsterdam, Netherlands, Mindrift offers flexible, fully remote, project-based opportunities — empowering experts to shape the future of generative AI, one task at a time.

Team Size501-1,000 employees
WorkspaceRemote solely
IndustryTechnology, Information and Internet
Location
United States
LinkedInLinkedIn

Tired of cold applications?

Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.

Know someone who'd be great for this?