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OpenTrain AIFor AI Companies

The #1 Platform for Finding Machine Learning AI Training Jobs

You should not need accounts on 20 platforms just to find work. See machine learning AI training and data labeling jobs from 20+ platforms in one feed. One profile, one inbox, one portfolio that grows with you.

100% free for freelancers. Always. No fees, no credit card, no catch.

Recommended Machine Learning Jobs
20+ platforms
Model Behavior Explanations Review $40/hr
Experiment Summaries Review Specialist $36/hr
Machine Learning Outputs Scoring $34/hr

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Why Join OpenTrain

The One Platform for Your Machine Learning AI Training Career

We bring machine learning AI training and data labeling jobs from 20+ platforms into one place. Search, apply, and track your work without juggling separate accounts and dashboards.

Every AI Job, One Feed

All machine learning AI jobs from 20+ platforms in one feed.

See machine learning AI training and data labeling roles from 20+ platforms in a single feed. No more logging into separate dashboards or missing the right opportunities.

One Profile, Everywhere

One machine learning expert profile. Apply anywhere.

Add your machine learning background, specialties, languages, and rates. Your profile is how AI teams find and shortlist you for machine learning AI training work.

One Inbox, Zero Chaos

Every machine learning AI update in a single inbox.

Role invites, application statuses, and shortlist notifications all land in one place. Apply directly from OpenTrain and track everything without the tab overload.

A Portfolio That Grows

A machine learning AI portfolio that grows with you.

Log completed projects from any platform. Your work history stays in one place and helps you win more machine learning AI roles over time.

Create your profile now and access machine learning AI jobs from 20+ platforms

Free, always. Find machine learning AI training and data labeling jobs from 20+ platforms, apply without managing multiple accounts, and build a portfolio that supports your career.

Always Free

Create Your Free Profile

Build one expert profile with your skills, domains, and rates. See machine learning AI training jobs from 20+ platforms in a single feed. Apply with one click. No fees, no subscriptions, no credit card.

Free forever
What You Get

Everything in One Place

  • Machine Learning AI jobs from 20+ platforms in one feed
  • One profile that works across every platform
  • Track all applications in one inbox
  • Build a portable AI training portfolio
Platforms

Find Jobs on Every Major AI Platform

How It Works

From Signup to Your First Job in Minutes

Create your profile, browse jobs from 20+ platforms, and apply with one click. No fees, no gatekeepers.

01
Step 01

Create a profile around your specialist strengths

Highlight your machine learning background, relevant tools, and the domain work that makes you credible in AI evaluation.

  • Add domains (math, medicine, code, writing), languages, and hourly rate
  • Import work history from other platforms to start with a track record
  • 100% free. No fees, no subscriptions, no credit card required
02
Step 02

See cross-platform opportunities in one place

Find AI training and reviewer work from across the ecosystem without checking multiple separate tools manually.

  • Jobs from Scale, Outlier, DataAnnotation, and 20+ more in one place
  • Filter by domain, language, pay rate, and work type
  • Get notified when new jobs match your skills
03
Step 03

Apply to the projects that fit your domain

Focus on roles where machine Learning judgment is a true differentiator instead of generic annotation only.

  • Apply on OpenTrain or get linked straight to the hiring platform
  • Your verified profile and work history travel with every application
  • Track all your applications and statuses in one place
04
Step 04

Build a portfolio that compounds over time

As you complete projects, your OpenTrain profile becomes stronger proof of specialist ability for future work.

  • Log work from any platform to build one unified track record
  • Your earnings history and reviews grow with every project
  • Higher-rated profiles get priority access to premium roles

Open machine learning jobs

Remote machine learning roles in AI training and data labeling from companies hiring on OpenTrain. Apply with a free account.

View all 79 machine learning jobs

LlamaIndex Developers Needed for AI Code Review & Evaluation

Experienced LlamaIndex developer needed to review AI-generated LlamaIndex code, label outputs, and run structured technical interviews; $25/hr, under 20 hrs/week, fully remote. Use your RAG, indexing, and vector DB expertise to give clear, actionable feedback and screen candidates.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 10, 2025

LLM model trainer for a medical scoring system

Collect urine output and serum creatinine data from the MIMIC‑4 database to build a training dataset for an LLM-based event prediction model; fixed-price $1,000, contractor role, intermediate level, remote worldwide.

Medical & Health
Remote · Worldwide
Flexible hours
Intermediate level
Fixed price · $1000

Posted Feb 19, 2025

Long-term Visual Data Labeling - Images/Video - USA

Remote contract for experienced computer-vision annotators in the US/Canada: long-term, part-time work labeling images and video (bounding boxes, polygons, keypoints, cuboids) with flexible hours and pay at $14/hr for ~15–20 hrs/week.

Image & Video Annotation
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $14/hr

Posted Sep 3, 2024

Software Developer & AI Trainer (JSON, Tables, Lists - Native Languages)

Join a remote AI-training project creating and editing JSON, tables, and lists for model training; $25/hr, contractor role. You must be a native speaker of one specified language with strong software development skills (Python, JavaScript, SQL, HTML/CSS) and be available to start Aug 19.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $25/hr

Posted Aug 14, 2024

Typescript Coders - Ongoing LLM/AI Training

Join a long-term, remote TypeScript project training LLMs: write and debug TypeScript snippets, create accurate training datasets, and optimize AI-generated code. Part-time contractor role (20–40 hrs/week) paying $7.25/hr; applicants need 2+ years TypeScript experience.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $7.25/hr

Posted Jun 25, 2024

Scala Developers - AI/LLM Training (Long-term Project)

Remote contract position writing and debugging Scala code to build training datasets for AI models; $9.28/hr, long-term (6+ months), 20–40 hrs/week with flexibility. Requires 2+ years professional Scala experience and a CS/engineering degree.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $9.28/hr

Posted Jun 22, 2024

Advanced Swift/iOS Developers - Quality Assurance/Code Review

Remote contractor role reviewing Swift/iOS code used to train AI models. $14/hr, ongoing 3–6 month project; expect 20+ hours/week (many contributors work 30–40 hrs); must have 5+ years Swift experience and B2+ English.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $14/hr

Posted Jun 18, 2024

Python Coding - Data Labeling/AI Training Data

Join an ongoing contractor role creating and debugging Python code to train AI models; commit 20–40 hours/week for 3–6 months at $8/hr USD. Ideal for Python developers with 2+ years' experience, strong English, and LLM training experience preferred.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $8/hr

Posted Jun 18, 2024

Swift/iOS Programmer - LLM Coding

Join a remote, part-time contract role creating Swift coding prompts and responses to train LLMs — 20+ hrs/week at $12/hr. Must be highly proficient in Swift with 2+ years of iOS experience and strong English; LLM training experience is a plus.

Coding & Software
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $12/hr

Posted May 17, 2024

Built for Your AI Training Career

One platform to find jobs from 20+ platforms, build your portfolio, and grow your career.

Your Machine Learning AI Training Career Hub

One profile, one inbox, one portfolio. Jobs from 20+ platforms.

Urgently hiring across 40+ skill domains.

20+

Platforms

100% Free
No fees, no subscriptions, no credit card.
Create Your Free Profile
1,000+

Machine Learning AI roles across 20+ platforms

Work from

Scale AIScale AI
Label StudioLabel Studio
ArgillaArgilla
EncordEncord
CVATCVAT
Scale AIScale AI
Label StudioLabel Studio
ArgillaArgilla
EncordEncord
CVATCVAT
SuperAnnotateSuperAnnotate
LabelboxLabelbox
RoboflowRoboflow
DataloopDataloop
Snorkel AISnorkel AI
SuperAnnotateSuperAnnotate
LabelboxLabelbox
RoboflowRoboflow
DataloopDataloop
Snorkel AISnorkel AI

Your machine learning AI career grows with every project.

FAQ

Frequently Asked Questions

Everything you need to know about joining and finding work on OpenTrain.