Competitive Programming Expert - Freelance AI Trainer… - Jobeax
Descripción de la vacante
Competitive Programming Expert - Freelance AI Trainer en España
RemotoTrabaja desde cualquier lugar
Tiempo parcialMenos horas cada semana
ContratoTemporal o freelance
Up to US$90 an hour
Spain
Competitive Programming Expert - Freelance AI Trainer en España is listed on Jobeax. Browse 80,000+ vacancies available.
About the role
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're looking 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):
Experience creating data for LLM code benchmarks or similar RL / evaluation datasets.
What you'll get
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.
How you'll work
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.
Hiring process
Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid
Additional information
Please submit your CV in English and indicate your level of English proficiency.
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