Find and Hire Supervised Fine-Tuning Experts
Post a job and hire instruction data writers, domain SMEs, and QA reviewers who work inside your existing tools. 70+ languages and experts in coding, law, medicine, finance, and more. 100,000+ pre-vetted AI Trainers.
Why Top AI Teams Choose OpenTrain for Supervised Fine-Tuning
Writers to Domain SMEs
Instruction data writers, subject matter experts, and QA reviewers for any SFT project
Use Any Tool
AI Trainers work inside any annotation platform or custom internal environment you provide
Any Domain or Language
Coding, law, medicine, finance, and more across 70+ languages
Hire for Any Annotation Platform or Internal Tool
Have your own tooling? Our talent works directly in your platform.
Pre-Vetted Experts
Countries
Languages
How OpenTrain Works for Supervised Fine-Tuning
Post an SFT Job & Receive Pre-Vetted Applicants
Describe your project and the skills you need. Receive proposals from instruction data writers, domain SMEs, and QA reviewers with proven experience in your domain.
Hire and Add to Any Annotation Platform
Review candidates, make your hires, and invite them to any labeling tool or your internal environment.
Communicate and Pay in One Place
Share rubrics and style guides, message your team, and handle global payments from a single dashboard.
Start Building Your Supervised Fine-Tuning Team Today
Post your first job and connect with instruction data writers, domain SMEs, and QA reviewers who work inside any annotation platform or your own internal environment.
Post Your Supervised Fine-Tuning Job
Describe your requirements and receive a curated shortlist of domain experts matched to your project. 15% flat fee, no hidden markups.
Full-Service, End-to-End
- Recruiting & live vetting
- Onboarding & training
- Daily management & QA
- Dedicated program lead
Build a career training the world's top AI models.
Freelance AI Trainer?
Join 127,000+ freelancers
Data Labeling Company?
Find clients and recruit talent
Domain Writers Who Produce Expert-Level Training Data
Generating high-quality training data means domain experts who can write like practitioners — not generalists following a script. Access writers with real-world expertise in your target domain.
FAQs about Hiring for Supervised Fine-Tuning
Quick answers to common questions about SFT data creation and AI Trainer hiring on OpenTrain.