Create and evaluate analytical scenarios that help fine-tune large language models. This one-week remote contract is for bilingual English and Portuguese contributors available for a 40-hour commitment.
Generative AI & RLHF
100% Remote
Worldwide
Eligibility
Entry
Experience
Jul 26, 2026
Posted
Open worldwide
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Remote contractor opportunity
One-week engagement
Flexible work with required overlap during US hours
About AI Training Work
AI training is the human side of building artificial intelligence. People create, review, classify, and evaluate examples that help large language models learn to produce more accurate and useful responses.
In this role, your analytical questions, explanations, annotations, and feedback will support fine-tuning and evaluation of language models. The work is part of a fast-growing field that lets contributors directly influence how AI systems reason and respond.
Work with text-based AI training data
Create and evaluate reasoning examples
Use analytical judgment to improve model behavior
The Role
OpenTrain is seeking a Business Analyst AI Training Expert to create and evaluate analytical scenarios for large language model fine-tuning. You will answer logic puzzles, data interpretation questions, and other reasoning tasks while providing correct answers and clear explanations.
The engagement lasts one week and requires a 40-hour weekly commitment. Work is remote, with required overlap with US hours.
Contractor and part-time engagement
Entry-level opportunity
Worldwide remote eligibility
English and Portuguese required
What You'll Do
Review, label, classify, and validate analytical data according to project guidelines.
Create analytical questions based on sales data analysis, logic puzzles with rules, and other reasoning scenarios.
Answer analytical questions and provide correct answers with detailed explanations.
Identify edge cases and annotation issues, then escalate them appropriately.
Perform quality checks and provide clear, constructive feedback.
Meet productivity and quality targets while working independently.
Requirements
This role requires strong analytical and research skills, careful attention to detail, and the ability to explain reasoning clearly. You should be comfortable working independently in a remote setting and following project-specific guidelines.
You must be multilingual in English and Portuguese and able to commit to 40 hours per week for the one-week contract. A reliable desktop or laptop and internet connection are also required.
Mandatory fluency in English and Portuguese
Strong analytical and research skills
Ability to provide detailed annotations and constructive feedback
Creative and lateral thinking abilities
Self-motivated, independent working style
Reliable desktop or laptop with an internet connection
Availability for 40 hours per week during the one-week engagement
Required overlap with US hours
Helpful Background
A bachelor's degree is helpful but not required in a specified field. Relevant areas include engineering, literature, journalism, communications, arts, statistics, or a related discipline.
Professional writing experience can also be valuable, including work as a business analyst, research analyst, copywriter, journalist, technical writer, editor, or translator.
Excel proficiency
Google Suite proficiency
Data interpretation
Logical reasoning
Basic arithmetic
Professional writing experience
How to Get Started
Create a free OpenTrain account, build your profile around your language and analytical strengths, and apply for this opportunity in minutes. If selected, you will complete the project remotely while following the applicable guidelines and quality expectations.
AI training projects can help you build experience in data annotation, model evaluation, and human feedback work. This engagement is a focused opportunity to apply bilingual communication and analytical reasoning to cutting-edge AI development.
Create your free OpenTrain account
Highlight English, Portuguese, analytical, and writing experience
Apply for the one-week contract
Complete the work remotely with required US-hours overlap
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