Join OpenTrain to evaluate AI-generated responses for business users using real Gmail account context; native-level German required. Contract, remote role (3–4 months) with flexible hours and a required PST overlap.
Generative AI & RLHF
Remote
1 country
Eligibility
Entry
Experience
Jul 16, 2026
Posted
Open to applicants in
United States
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OpenTrain is the #1 platform for building careers in AI training and data labeling. We hire and contract directly for projects where contributors teach AI by reviewing model outputs, annotating data, and providing the human feedback that modern AI systems learn from.
Working with OpenTrain means joining a fast-growing industry that offers remote, flexible work and concrete ways to grow a durable freelance career in AI training.
About AI training work
AI training (also called data labeling or human feedback work) is the human side of building AI: people prepare, evaluate, and correct examples so models learn to behave better. Contributors perform tasks like rating responses, spotting incorrect assumptions, and judging personalization—work that directly shapes real AI products.
This role focuses on personalized AI interactions for business users. Evaluations require careful judgment, consistent application of guidelines, and strict attention to confidentiality and privacy.
The role
As a Business Account Rater you'll evaluate AI-generated responses that use business email history and account activity as context. Your feedback will help improve relevance, personalization, and overall usefulness for professional users.
OpenTrain is hiring contractors for a short-term engagement. This is entry-level work but requires mature judgment, strong written feedback, and experience working with professional email context.
Role type: Contractor, part-time (project length: 3–4 months).
Label types: Evaluation ratings and RLHF-style feedback.
Data type: Text (business email context).
What you'll do
Review AI-generated responses that reference a user’s business email history and account activity.
Judge responses for relevance, accuracy, helpfulness, and appropriate personalization.
Identify unsupported assumptions, incorrect personalization, and irrelevant recommendations.
Compare multiple candidate responses and select the better user experience.
Write clear, well-reasoned evaluation feedback following project guidelines.
Maintain confidentiality and handle business email content with care.
Requirements
You must meet every required qualification below to be considered. Do not apply unless you have the specified language fluency and an active business Gmail account as described.
Native-level proficiency in German, Japanese, Korean, or French (this posting is recruiting for these language cohorts).
An active Google Workspace corporate Gmail account used for professional communication.
Gmail display language set to the target project language and most inbox emails in that language.
Roughly 1,000+ emails in an active business inbox.
Strong analytical thinking, attention to detail, and clear written communication.
Reliable desktop or laptop with internet access and ability to work independently remotely.
Helpful background
The following are not required but will make you a stronger candidate and help you work faster and more confidently on this project.
Experience in AI evaluation, data annotation, content review, or QA.
A bachelor’s degree or equivalent practical experience in any field.
Comfort identifying subtle quality issues, unsupported assumptions, and personalization errors.
Project details & schedule
Preserve privacy and follow guidelines: you will be working with professional email context and must keep information confidential.
Commitment: typical 20+ hours/week; project asks for at least 4 hours per day and allows up to 40 hours/week.
You must provide at least 4 hours of overlap with Pacific Standard Time (PST).
Engagement: contractor, remote, approximately 3–4 months.
How to apply / next steps
OpenTrain is hiring contractors directly for this project. Create an OpenTrain account (free) to build your profile, confirm your language and Gmail eligibility, and apply.
If selected you will receive project onboarding materials and guidelines explaining how to evaluate responses and submit feedback consistently.
Prepare to verify your active Google Workspace business Gmail and inbox language.
Be ready to follow detailed evaluation guidelines and confidentiality rules during onboarding.
Review AI-generated business replies in German, Japanese, Korean, or French and deliver structured feedback that improves personalization and accuracy. Remote contractor role, ~20+ hours/week (min 4 hours/day), 3–4 month engagement; must reside outside the United States and use an active business Gm
Review AI-generated business responses for relevance, accuracy, and personalization using real professional email history. Remote contractor role (part-time to full-time) requiring native-level fluency in German, Japanese, Korean, or French and overlap with PST.
Contractor role reviewing AI-generated business replies using real corporate Gmail inboxes; native-level German, Japanese, Korean, or French required. Remote U.S.-based work with flexible hours (typical 4+ hrs/day, target 20+ hrs/week, up to 40 hrs/week), writing structured feedback to improve model
United States 
