Function-based Code Annotator

It's Rex's reputation system: a running score of your reliability, consistency, and task quality. A stronger profile unlocks higher-paying tracks and priority access to premium projects like Project EVA (with 2077AI), so every task you complete affects what you get offered next.

RLHF and instruction-tuning dataset creation, LLM prompt and response evaluation, named entity recognition, computer vision annotation, content safety labeling, speech-to-text transcription, and red-teaming and safety evaluations. Your specific assignment depends on your skills and profile tier.

Slow and deep, not fast and repetitive. A single task can take 45-60 minutes of researching citations or verifying complex calculations. Quality is what's being measured here, not throughput.

No. Instead of client deliverables, you're given complex scenarios to evaluate: grading the AI's logic, correcting its hallucinations, and supplying expert-level reasoning it doesn't have on its own. The job is closer to teaching than consulting.

Tasks here are scoped to Software Engineering, not generic labeling. As a Function-based Code Annotator, 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.

Data Annotation, Chinese, English, and Entry Level are named directly in the listing. If you don't have hands-on experience with these, expect the screening process to test for them directly rather than accepting adjacent experience as a substitute.

This listing is posted at $120/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.

Yes. This role specifically requires Chinese or English proficiency, on top of the English most AI training work assumes by default. If Chinese is not a language you're fluent in, this is not the right role. Filter for your native language to find better-matched listings.

You'll be taken to Rex's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.

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 China. 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.

Rex is the contractor brand of Remo, a remote work infrastructure company, acting as employer of record for AI training contracts on behalf of large AI labs and data companies. Your contract is formally with Remo, not the end client.