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Domain experts, linguists, and evaluators, shaping how the world’s leading AI systems learn, reason, and perform.

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Global Impact

500k+

Experts Curated

2500+

Employees

250+

Locales Supported

100+

Countries

14+

Global Facilities

850M

Tasks Completed in 2024

200+

Domains of Expertise

7

Welocalize ISO Certifications

~20k

Active Monthly Raters

2M

Daily Evaluations

Why Global Talent Chooses Welo Data

Flexibility

Work on projects at the times that work best for you, with clear guidelines and transparent pay.​

Growth

Access to optional learning resources and guidance to expand your skills witheach project you complete.​

Support

Connect with a global community and receive responsive assistance whenever you have questions.​

Explore Open Roles

What’s it like to work for Welo Data?

“I definitely like the fact that I can work whenever I want. Also, there are no meetings, no  reports to be done, just work, on my own terms, as time and amount.”

Maricela
Bucharest, Romania

“Schedule flexibility. I’m a father of two and need this flexibility to achieve both roles of father and worker.”

Maximiliano
Buenos Aires, Argentina

“Leave your 9-to-5 job! Legit payment and professional management. Most remote jobs are just a myth, but working with Welo Data is real and pays on time.”

Shamyra
Tangerang, Indonesia

“I really like the flexibility of your company. The best thing about working for us is that we are not restricted by time or location.”

Haruka
Sapporo, Japan

Become A Welo Data AI Trainer

Join our network of 500,000+ community working from home and shape the future of AI.

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Frequently Asked Questions

Welo Data is a global network of 500,000+ vetted experts who help train, evaluate, and improve the performance of today’s leading AI systems. We specialize in multilingual AI evaluation, safety testing, data quality assessment, and human-in-the-loop model improvement for top AI labs.

Our contributor community includes linguists, annotators, subject-matter experts, AI Trainers, cultural specialists, and domain experts who provide the human judgment AI needs to become more accurate, ethical, and globally effective.

Getting started with Welo Data is simple. The process varies by project, but most applicants can expect the following steps:

  1. Apply – Choose the AI training or evaluation role that matches your skills and complete the application form.
  2. Create Your Welo Works Account – After you apply, you’ll get an email to create your account on Welo Works. This is where you’ll complete your screening, upload documents, verify your skills, and track your progress, all in one place.
  3. Language & Cultural Assessment – This helps us match you to projects in your strongest languages or areas of expertise.
  4. Access Learning Resources – You’ll receive optional study materials and training guides to prepare for the qualification exam.
  5. Pass the Task-Related Exam – Demonstrate your accuracy, attention to detail, and analytical skills.
  6. Set Up Your Payment Details – After approval, submit your payment information, review your agreement, and start contributing to real AI projects.

This process ensures you begin work fully prepared and aligned with project expectations.

Welo Works is our talent platform, designed to guide you from application to onboarding in one place.

Inside the platform, you can complete your screening steps, upload documents securely, verify your skills through assessments or learning modules, and track your progress in real time.

Everything you need to get started and stay active on projects lives in Welo Works.

Learn more about Welo Works here.

You’ll be paid for the tasks and project work you complete, with compensation varying by task type, complexity, and project volume.

Payments are issued regularly through secure, verified online payment platforms, and you will always have access to your task history, pay rates, and earnings dashboard.

Your exact payment method and frequency will be confirmed during your project onboarding.

Welo Data offers a wide range of AI training and evaluation projects, depending on your skills and the role you apply for. Examples include:

  • AI safety and harm rating
  • Search relevance evaluation
  • Multilingual data annotation
  • Content quality review
  • Audio, video, or multimodal annotation
  • LLM reasoning, ranking, and comparison tasks
  • Technical, cultural, and linguistic assessments

You’ll complete our qualification steps first, and once approved, you’ll receive project guidelines, training materials, timelines, and secure platform access.

Every project you work on directly improves how AI understands language, culture, content, and real-world context.

Welo Data offers fully flexible, remote-friendly project work. You choose:

  • When you work
  • How often you work
  • How many tasks you complete

Most roles are task-based, making Welo Data a great option for people seeking part-time, supplemental, or schedule-friendly AI work.

To work on Welo Data projects, you’ll need:

  • A computer or laptop
  • A stable internet connection
  • A modern web browser (Chrome, Firefox, Safari, etc.)

Some specialized projects may require additional language skills, software, or technical experience. Any extra requirements will be shared before you begin.

You will ONLY receive legitimate communication from the following domains:

  • @welocalize.com
  • @hire.lever.co
  • @welodata.ai

Welo Data will never ask you to pay fees, purchase equipment, or share sensitive personal information outside our secure platforms. Always verify that:

  • The job is listed on our official job board
  • You receive an official agreement before beginning work

If you receive suspicious messages, report them here.

View our official guidelines on avoiding fraud here.