Is this job worth applying to?

Pay

Below typicalTops out at $50/hr. The typical top rate across 237 priced coding listings is $90/hr.

Getting in

Some screeningVaries; several days to weeks. Expertise or language fluency matching a listed project.

Steady work

Work is patchyHours can be very low.

Payout record

Pays on timeSchedule: varies by project. Payment method not published.

Freshness

Over a year oldPosted over a year ago. Still listed on Invisible on Nov 6, 2026.

Where you live

Named countries onlyOpen in United States.

The job description

Do you enjoy Kaggle-style problem solving, iterating on models, testing ideas, and driving performance gains? Now imagine doing that as paid work, where your solutions directly strengthen the world’s most advanced AI systems.

Large-scale language models are evolving into engines of discovery, education, and engineering. To get there, they need sharper reasoning and better datasets. As a Machine Learning Specialist, you will take on hands-on ML challenges that feel like research competitions, but with direct impact on next-generation AI.

What You’ll DoOn a typical day, you will:

Solve applied ML tasks: iterating on problems that test and improve model reasoning, from baseline solutions to optimized workflows.
Evaluate scientific writing: compare research abstracts and introductions using review rubrics (e.g., NeurIPS guidelines) for clarity, correctness, and impact.
Debug advanced model behavior: probe LLMs on optimization, fairness, regularization, transformers, and applied NLP, documenting failure modes.
Design new benchmark tasks: identify datasets, analyze state-of-the-art papers, build evaluation scripts, and provide reference implementations.
Improve training datasets: deliver structured feedback that makes AI outputs more accurate, reliable, and useful.

What you’ll Bring

Strong background in machine learning, NLP, or data science.
Experience with supervised/unsupervised learning, deep learning, reinforcement learning, probabilistic modeling, and applied NLP.
Proficiency in Python, ML frameworks, and cloud-based workflows.
Master’s or PhD in CS/ML/data science preferred; peer-reviewed research or production ML systems a strong plus.
Clear communication skills, able to explain reasoning and “show your work.”

Why Join

Turn your ML problem-solving into real-world impact: your work trains and strengthens cutting-edge AI.
Be part of novel AI training initiatives: evaluating models, shaping datasets, and designing challenges at the research frontier.
Enjoy flexibility: remote, contract-based work with autonomy to set your schedule.

Ready to turn your machine learning expertise into the knowledge base for tomorrow’s AI? Apply today and start teaching the model that will teach the world. We offer a pay range of $30-$50 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location.
Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and high-speed internet; company-sponsored benefits such as health insurance and PTO do not apply.
Job title: ML Engineer Specialist – AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid-Senior Level

How do you apply to Invisible?

Apply on Invisible

The Apply button opens this post on Invisible's own site. You apply with them, not with Rubric. Timing: varies; several days to weeks.

Get through screening

What Invisible asks for after you apply:

Browse open projects on Meridial
Join the network and complete your profile, including country
Take the skills assessment or interview for the project
Wait to be matched and onboarded to a project team

Start work and get paid

Pay schedule: varies by project. Ask how they pay you, too. You're paid for the work they hand out, not a fixed salary.

Invisible also needs

Expertise or language fluency matching a listed project
Reliable internet

Red flags

Red flagClients or projects disappearing for months with no update
Red flagSudden project cancellations

What is Invisible like to work for?

AI training and operations company that hires freelance AI trainers through its Meridial expert network, mostly onto team-based projects.

Advertised pay	$6–65/hr
Getting in	Some screening
Application takes	Varies; several days to weeks
How you get paid	Varies by project
Payout record	Pays on time
Countries	Each listing names the countries it accepts, some covering about 145 countries. Invisible has posted India-only roles (coding, Telugu, Tamil, Marathi, Hindi), with pay adjusted by location.

Listings show $6–65/hr and the rate depends on your country; many entry projects pay around $15–25/hr.