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Remote AI training and data labeling jobs in Luxembourg

Find remote AI training and data labeling jobs open to applicants in Luxembourg.

  • 100% remote
  • Flexible hours
  • Hourly / per-task pay
  • 285 open roles

Legal AI Evaluation Expert

Review and improve AI-generated legal responses, explain your reasoning, and apply legal judgment consistently. This remote contractor role requires English fluency and at least 20 hours per week.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 26, 2026

Physical Sciences AI Benchmark Task Expert

Build realistic terminal-based physics and computational science tasks for AI training and evaluation. Create reproducible environments, scientific solutions, and automated tests while working 20+ hours weekly from anywhere.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 26, 2026

Computational Mathematics AI Evaluation Expert

Design and validate realistic computational mathematics tasks that test AI agents in terminal-based research and engineering workflows. This remote contract requires advanced mathematical knowledge, strong programming skills, and 20+ hours per week.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 26, 2026

Lifestyle AI Recipe Author

Create practical lifestyle guidance for an AI assistant, build structured Google Sheets, and review interactive app outputs. This remote contract role requires 20+ hours weekly, strong English writing, and real lifestyle experience.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 26, 2026

Python Backend Engineer for AI Agent Infrastructure

Build Python backends, connectors, and evaluation tasks for AI agents in a remote four-week contractor engagement. Earn $300 per approved task with a minimum of one approved task per day.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $300/label

Posted Sep 26, 2026

AI Safety Red Team And Policy Evaluator

Design adversarial prompts, review image-edit requests, and evaluate AI model safety against detailed policies. This worldwide, English-language contract requires 20 or more hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Fixed price

Posted Sep 26, 2026

Mechanical Design Engineer, CAD and Manufacturing

Use your mechanical design expertise to create and review CAD models, engineering drawings, and manufacturing documentation for AI training work. This remote contractor role pays $40 to $80 per hour and requires English fluency.

General Annotation
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $40–$80/hr

Posted Sep 25, 2026

Danish Audio Transcription Specialist

Transcribe and review Danish audio for AI training at $24-$30 per hour, with a 20+ hour weekly commitment. Native-level Danish and transcription experience are required.

Audio & Speech
Audio
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
Danish
Part-time · Flexible
Entry level
Hourly · $24–$30/hr

Posted Sep 25, 2026

Open Source Code Review Maintainer

Review large language model code patches for open source repositories, explain your decisions, and assess peer work. This flexible remote contractor role requires demonstrable open source maintenance experience.

Coding & Software
Computer Code Programming
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $150–$300/hr

Posted Sep 25, 2026

Logistics AI Evaluation Expert

Use your logistics and fleet-dispatch experience to review AI-generated routing, scheduling, inventory, and cost tools. This remote contractor role runs up to 10 weeks and requires 40 hours per week plus Pacific Time overlap.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 25, 2026

Project Management AI Training Specialist

Review project management plans, schedules, status reports, and AI outputs against clear standards. This remote contractor role needs strong project management knowledge, English fluency, and 20+ hours each week.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 25, 2026

HR and People Operations AI Evaluation Expert

Use at least five years of HR or People Operations experience to evaluate AI tools, spreadsheets, workflows, and policies. This remote contractor role requires 40 hours per week, with part-time work possibly accepted.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 25, 2026

Materials Science AI Model Evaluation Expert

Evaluate AI-generated materials science work, build scientific benchmarks, and review model reasoning against verified standards. This worldwide, English-language contract role requires advanced materials or semiconductor expertise and 20+ hours per week.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 25, 2026

Chemistry AI Response Evaluator

Review AI-generated chemistry answers, write challenging scientific questions, and give expert feedback on accuracy and reasoning. This fully remote contract offers flexible project work and up to $150 per hour.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $150/hr

Posted Sep 25, 2026

Investment Banking AI Analysis Reviewer

Review AI-generated financial analyses, valuation logic, and transaction scenarios using investment banking experience. This remote contract role offers flexible work and pay up to $175 per hour.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $175/hr

Posted Sep 25, 2026

Physics AI Response Evaluation Expert

Design advanced physics questions and review AI-generated answers for scientific accuracy, sound reasoning, and physical validity. This remote contract work pays up to $75 per hour and supports flexible participation.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $75/hr

Posted Sep 25, 2026

Quantitative Finance AI Research Evaluator

Use your expertise in mathematical finance, risk modeling, and quantitative research to create training data and evaluate AI responses. This flexible, remote project pays up to $150 per hour.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $150/hr

Posted Sep 25, 2026

Machine Learning AI Response Evaluator

Evaluate AI-generated answers for accuracy, reasoning, and technical soundness across machine learning topics. This remote contract work pays up to $75 per hour and can fit around research, teaching, or industry work.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $75/hr

Posted Sep 25, 2026

Biology AI Response Evaluation Expert

Use advanced biology knowledge to design questions and evaluate AI-generated scientific responses for accuracy, reasoning, methods, and data interpretation. This fully remote, flexible contract offers up to $125 per hour.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $125/hr

Posted Sep 25, 2026

Mathematics AI Response Evaluator

Review AI-generated answers for mathematical accuracy, proof quality, logic, and reasoning. This fully remote contract pays up to $75 per hour and suits doctoral researchers, teachers, and mathematics professionals.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $75/hr

Posted Sep 25, 2026

Software Engineering AI Code Evaluator

Evaluate AI-generated code, design practical programming questions, and give structured feedback on correctness, efficiency, and engineering judgment. This remote, project-based role pays up to $65 per hour.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $65/hr

Posted Sep 25, 2026

Contract Redlining Attorney for Legal AI Evaluation

Help evaluate AI systems on commercial contract review and simulated negotiations. This remote contractor role pays $70 to $90 per hour and requires 1 to 3 years of transactional legal experience.

Legal & Finance
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $70–$90/hr

Posted Sep 24, 2026

Senior Book Editor for AI Training

Review and improve book manuscripts while helping shape AI editorial standards. This remote contractor role pays $80 to $120 per hour and requires 20+ hours per week.

Writing & Editing
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $80–$120/hr

Posted Sep 24, 2026

Spanish Voice Recording Specialist

Record polished Spanish voice-over audio for AI training and media projects at $200 per finished hour. This flexible remote contractor role requires professional recording experience, strong diction, and a high-quality setup.

Audio & Speech
Audio
Remote · Worldwide
Spanish
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Academic Content Evaluation Expert

Create and review realistic academic and education content used in AI training. This remote contractor role needs strong knowledge of U.S. education practices and offers up to five weeks of work at 40 hours per week.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Legal Professional Writing AI Training Expert

Create and review realistic U.S. legal content for AI training, including professional writing, legal scenarios, and accuracy checks. This contractor role requires 40 hours per week, Pacific Time overlap, and strong legal expertise.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Finance Task Reviewer

Review finance questions and answers for accuracy, clarity, relevance, and sound reasoning in a remote AI training project. Work 20+ hours weekly, up to 40, with a four-hour PST overlap.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Life Sciences Scientific Reasoning Expert

Create advanced, non-coding biology problems and reference answers for AI evaluation. This contract role suits researchers who can interpret experiments, data, figures, sequences, structures, and scientific evidence.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Life Sciences Scientific Reasoning Task Designer

Create graduate-level, non-coding life sciences tasks that test how AI interprets experiments, data, figures, sequences, structures, and research evidence. This remote contractor role requires advanced research experience and at least 40 hours per week for one month.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 24, 2026

Python Backend AI Agent Infrastructure Engineer

Build Python backends, SaaS connectors, realistic AI agent tasks, and evaluation rubrics in a four-week contractor engagement paying $300 per approved task. Apply through OpenTrain, then complete the hiring site application.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $300/label

Posted Sep 24, 2026

What this work can involve

AI training and data labeling work can involve preparing or reviewing examples for artificial-intelligence systems. Depending on the project, this may include annotating images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. For applicants located in Luxembourg, the individual live posting controls the responsibilities and eligibility for each role.

  • Read the individual posting to identify whether the work involves annotation, audio, model-response evaluation, search evaluation, translation, code review, or subject-matter work.
  • Check each live posting for the location rules and role-specific requirements before applying.

How hiring works through OpenTrain

OpenTrain is the hiring organization for the public roles represented on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. The individual live posting provides the role-specific information for each opportunity.

  • Confirm in the individual live posting whether applicants located in Luxembourg are eligible.
  • Apply through OpenTrain for the role you want to pursue.

Frequently asked questions

What can this work involve?
AI training and data labeling is human work used to prepare and review examples for artificial-intelligence systems. Depending on the role, it can include annotating images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The individual posting explains which activities apply.
Where can I find role-specific details?
The individual live posting is the source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements. Read it to confirm whether applicants located in Luxembourg can apply and to understand the specific role details.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for the public roles represented on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Refer to the individual live posting for role-specific details.