Ai Trainer - Freelance Data Annotator

Toloka Ai; Lisboa; Remote; EUR 160,000 - 320,000; Part time

Benefits offered by this job

Flexible schedule

Remote work

Job summary

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available.

This freelance, part-time role is remote and project-based, fitting around your primary commitments.

Qualifications

• Bachelor's degree in any discipline.
• Strong logical thinking and problem solving.
• Excellent attention to detail and ability to follow complex instructions.
• Clear communication and ability to ask clarifying questions when needed.
• Genuine interest in technology and AI.
• Strong written and spoken English (C1+).

Skills

Logical thinking

Attention to detail

Communication skills

English proficiency

Education

Bachelor's degree

Job description

About the opportunity

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What this opportunity involves annotation is what helps AI make sense of the world. As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. While each project involves unique tasks, contributors may.

What we look for

• Bachelor's degree in any discipline
• Minimum 1 year of experience in any professional role
• Logical thinking, fact-checking and reasoning abilities
• Strong attention to detail and ability to understand and follow complex instructions
• Strong communication skills, including the ability to ask clarifying questions when needed
• Genuine interest in technology and artificial intelligence
• Strong written and spoken English (C1+)

Why this freelance opportunity might be a great fit for you

• Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments
• Participate into advanced AI projects and gain valuable experience that enhances your portfolio
• Influence how future AImodels understand and communicate in your field of expertise

Project time expectations

For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.

Compensation

Paid per accepted task. Your rate depends on the qualification tier you reach and how efficiently you complete tasks — up to the equivalent of $13/hr. Because payment is per task, a faster pace raises your effective hourly rate. Keep in mind, quality standards must be maintained, regardless of speed.

Ai Trainer - Freelance Data Annotator Lisbon, Portuguese Republic, PT