Mindrift

Competitive Programming Expert - Freelance AI Trainer

Mindrift
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1 day ago
Remote, Germany +4 moreSenior

Responsibilities

  • Write original algorithmic problems with clear statements, sound constraints, and intended solutions.
  • Write correct solutions in C++ and Python.
  • Create realistic incorrect solutions that represent common mistakes.
  • Build generators, edge cases, stress tests, and hacking tests.
  • Write checkers and interactors using Testlib for problems with multiple valid answers.
  • Validate solutions and tests against correctness and time-limit requirements.

Requirements

  • Strong competitive-programming background demonstrated by a public profile, qualifying Codeforces rating, or IOI, ICPC, or national-olympiad record.
  • Fluent contest-level C++ skills, including STL and complexity analysis.
  • Comfort writing Python.
  • Ability to explain incorrect solutions and construct inputs that expose their flaws.
  • Strong written English proficiency at C1+ level.
  • Applicants should provide competitive-programming handles, current or peak rating, problem-setting experience, and IOI, ICPC, or olympiad history.
  • Testlib experience, real contest problem-setting or testing experience, and AI coding benchmark or evaluation-data experience are preferred.

Benefits

  • Remote, part-time freelance project work.
  • Project-based participation rather than permanent employment.
  • Estimated workload of approximately 10–20 hours per week during active project phases.
  • Paid per accepted task, with rates based on qualification tier and task efficiency.

Tech Stack

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Mindrift

About Mindrift

1,001-5,000 employees

Mindrift builds an expert-sourcing platform that connects domain specialists to project-based work training and evaluating generative AI models, including supervised fine-tuning, RLHF, evaluation, and red-teaming. It is built and operated by Toloka, part of Nebius Group, and run from Amsterdam, Netherlands. Work is fully remote and freelance, serving global technology companies developing and improving large AI systems.

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