About OpenTrain
OpenTrain AI is the hiring and contracting organization for this role. OpenTrain is the #1 platform for finding and building careers in AI training and data labeling, helping contributors discover projects, build a professional profile, and grow their experience in a fast-moving industry.
Creating an OpenTrain account is free, and candidates apply through OpenTrain for remote contractor opportunities such as this one.
- Remote contractor engagement
- Part-time schedule of approximately 15 hours per week
- Flexible scheduling
- Apply through OpenTrain
About AI Training Work
AI training is the human side of building modern artificial intelligence. Contributors prepare and review examples that help AI systems improve, including programming tasks, code evaluations, and assessments of whether generated solutions follow technical requirements.
This work lets experienced developers apply practical engineering judgment to cutting-edge AI systems while choosing versatile, part-time projects that can fit around other commitments.




- Help evaluate and improve AI-generated software solutions
- Use real programming and software engineering judgment
- Contribute to a rapidly growing field connecting human expertise with AI development
The Role
OpenTrain is seeking a Backend Coding Task and Verifier Specialist to create challenging programming tasks for AI systems and develop deterministic verifiers for those tasks. You will design realistic feature implementation, debugging, and bug-fix scenarios, then build verifiers that accept reasonable valid solutions and reject solutions that fail the specifications.
The work requires sound judgment across code quality, performance, automated testing, refactoring, algorithms, data structures, scalable services, and secure coding practices where relevant.
- Create realistic backend coding tasks
- Build deterministic verifiers for programming challenges
- Distinguish valid solutions from invalid solutions
- Apply backend enginee

📌 Backend Coding Task and Verifier Specialist (India)
🏢 OpenTrain AI
📍 India