Freelance Software Developer (Kotlin) - AI Trainer

Freelance writers, editors, and generalist AI tutors with strong English fluency and solid research skills, no specialized tech degree required. Built by data-labeling company Toloka, Mindrift also opens higher-paying specialized projects (cybersecurity, medicine, law) to domain experts once verified.

General evaluation tasks pay $15-30/hr because they're high-volume, lower-complexity work like basic fact-checking and tone evaluation that doesn't require an advanced degree. Verified domain experts see rates scale up to $40-100+/hr on specialized projects, so the path is to start generalist and build toward a specialist track.

No set hours, no check-ins, no meetings. You log in when you want, pick up an available task, complete it, and submit; nobody is waiting on you in real time. That's different from remote employment, where you're expected online during business hours. The tradeoff: you're competing with others for available tasks, so an empty queue means there's simply nothing to do until more work is released.

Most skip a live interview entirely and gate access through an automated assessment or qualification task instead. Where we've confirmed the specific requirement for this listing, it's called out above in What We Know About This Role.

Tasks here are scoped to Software Engineering, not generic labeling. As a Freelance Software Developer (Kotlin) - AI Trainer, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to Software Engineering) rather than following a one-size-fits-all rubric. If you don't have hands-on Software Engineering background, this is likely not the right listing to start with.

AI Training is named directly in the listing. If you don't have hands-on experience with this, expect the screening process to test for it directly rather than accepting adjacent experience as a substitute.

This listing is posted at $80/hr, an hourly rate. Pay can change between when we last checked the listing and when you apply, so confirm the current number on the platform's own application page before committing time.

This role lists a master's degree as a requirement. In practice, the domain assessment is the real gate. If you can pass it, the degree is usually secondary. However, some platforms verify credentials formally, so list your actual qualifications accurately on your profile.

This specific role is open only to people based in the United States. If you are somewhere else, applying is unlikely to lead to an offer even if you pass the assessment, because the restriction is usually about where the work can legally be contracted rather than your skills. Read the full description for any tax-residency or right-to-work caveats before you apply.