General Expert Data Annotator
You will review and annotate text, documents, model outputs, and other data samples in a field where you have professional expertise. The duties and qualifications need review before applying.
- Field
- Data & analytics
- Where
- United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
- Commitment
- part time
- Hours
- up to 20/week
- Posted
- 6 days ago
Pay data for your profession: Data scientist AI trainer jobs
How this pay compares
The title points to labeling and annotation: tagging what's in images, video, audio or documents. What each kind of AI training work pays
At $43/hr, this role pays more than 64% of the 80 open data & analytics roles with a listed pay range, above the median of $29.
Among platforms with 10 or more priced data & analytics roles, Alignerr has the highest median ($80/hr across 12 roles) and micro1 the lowest ($18/hr across 12).
OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.
Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.
What you would earn at this rate
Rate
$43/hr
Per week, before tax
$860
Per month, if the work is steady
$3,727
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $942 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.
Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn
Open data & analytics roles on each platform
The same kind of work, priced on every platform we track, with the best-paid open role on each.
| Platform | Open | Median | Best-paid open role |
|---|---|---|---|
| Alignerr | 12 | $80/hr | AI Data Quality Analyst$40-120/hr |
| Mercor | 4 | $75/hr4 priced | Data Analysis Expert$70-120/hr |
| OpenTrain AIthis role | 52 | $25/hr | Product Analytics and Experimentation Expert$115/hr |
| micro1 | 13 | $18/hr | Senior Data Analyst$50-60/hr |
The full listing
As posted on OpenTrain AI. See the original
The work
You will review and annotate text, documents, model outputs, and other data samples in a field where you have professional expertise. The duties and qualifications need review before applying.
- Evaluate content for accuracy, quality, and appropriateness using structured guidelines.
- Explain annotation decisions with clear reasoning and source citations.
- Flag ambiguous, inconsistent, or out-of-scope samples and document the issues.
- Record decisions consistently and maintain accuracy across substantial review workloads.
What it pays and takes
- Pay: $43 per hour.
- Hours: At least 20 hours per week; scheduling is flexible.
- Work arrangement: Remote, project-based contract work.
- Location: Open to candidates in eligible countries for this role.
- Language: Fluency in English.
- Required experience: At least three years of professional experience requiring specialized expertise, such as law, medicine, engineering, finance, science, or a related field.
- You should have strong analytical and critical-thinking skills, clear written communication, and the ability to work independently, follow detailed instructions, and apply quality standards consistently.
- Helpful: Previous experience in data annotation, content review, or AI model evaluation; familiarity with annotation tools; an advanced degree or professional certification; or experience writing professional analyses, research reports, legal memoranda, or technical documentation.
How it works
OpenTrain is a platform for finding AI training and data-labeling work and starting applications. Apply on OpenTrain with your resume, then complete the application on the hiring site.
About AI training work
AI training work uses human review and examples to help build and assess AI systems. Professional expertise helps people make careful judgments on complex content and explain those decisions clearly.
From applying to your first payment on OpenTrain AI
- 1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
- 2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
- 3
Funded milestones
The client funds each milestone before work starts.
- 4
First payment
OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.
Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts
Full OpenTrain AI profile: watch-outs and the public record →Pay history
OpenTrain AI has listed this role at $43/hr since Nov 7, 2026 with no change.
Across OpenTrain AI's data & analytics roles, the median listed pay was $23/hr on Nov 1, 2026 (41 roles) and is $25/hr as of Nov 11, 2026 (50 roles).
What workers report about OpenTrain AI
Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.
Other data & analytics roles
- Dassault Systèmes CATIA SpecialistOpenTrain$20-150/hr
- Spatial Data AnalystHandshake AIUp to $125/hr
- AI Data Quality AnalystAlignerr$40-120/hr
- Data Analysis ExpertMercor$70-120/hr
- Data Labeling SpecialistAlignerr$40-120/hr
- E-commerce Data AnalystAlignerr$40-120/hr