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Remote AI training and data labeling jobs in Luxembourg

Looking for AI training or data labeling work as someone located in Luxembourg? These roles explicitly accept applicants in that country, although eligibility can vary by posting. OpenTrain is the hiring organization, candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.

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

AI Quality Analyst (Dutch), Personalization

Join OpenTrain AI as a contract AI Quality Analyst (Dutch) to design multi-turn, personalization-based prompts and evaluate model responses for grounding, integration, and helpfulness; 1-month engagement at $20/hr with required PST overlap. Remote, flexible, entry-level.

Generative AI & RLHF
Text
Remote · Worldwide
Dutch
Part-time · Flexible
Entry level
Hourly · $20/hr

Posted Jul 16, 2026

AI Quality Analyst, Vietnamese Personalization

Join OpenTrain as a contractor evaluating a conversational AI personalization feature in Vietnamese. Earn $15/hr on a 3-month, fully remote engagement designing multi-turn prompts, rating responses side-by-side, and writing clear rationales with a required PST overlap.

Generative AI & RLHF
Text
Remote · Worldwide
Vietnamese
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

AI Personalization Quality Analyst (Thai)

Remote contractor role evaluating a conversational AI personalization feature in Thai by designing multi-turn prompts, comparing side-by-side responses, and writing structured rationales. 3-month contract at $15/hr with a minimum 4 hours/day and 4-hour overlap to PST.

Generative AI & RLHF
Text
Remote · Worldwide
Thai
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

Hindi AI Personalization Quality Analyst

Evaluate personalization for a leading generative AI in Hindi: design multi-turn prompts, compare and rate responses, and write clear rationales. Remote contractor role, 20+ hrs/week, $15/hr, requires strong Hindi reading/writing and overlap with PST.

Generative AI & RLHF
Text
Remote · Worldwide
Hindi
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

AI Quality Analyst, Personalization (Indonesian)

Evaluate and shape AI personalization in Indonesian — $15/hr, contractor work with a minimum of 20 hours/week; ideal candidates can commit 30+ hours with PST overlap. Design multi-turn prompts, rate model outputs, write clear rationales, and verify grounding.

Generative AI & RLHF
Text
Remote · Worldwide
Indonesian
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Jul 16, 2026

AI Quality Analyst (Turkish Personalization)

Immediate 3-month contract evaluating Turkish-language personalization for a generative AI; $15/hr, minimum 30 hrs/week with 4 hours overlap with PST. Design multi-turn prompts, compare side-by-side responses, and write clear rationales to shape model behavior.

Generative AI & RLHF
Text
Remote · Worldwide
Turkish
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

Korean AI Quality Analyst, Personalized Response Evaluation

Join OpenTrain AI to evaluate personalized, multi-turn Korean AI conversations — remote, part-time contractor work at $15/hr for 20+ hours/week. Create prompts, compare side-by-side responses, and write concise rationales to improve model grounding and helpfulness.

Generative AI & RLHF
Text
Remote · Worldwide
Korean
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Jul 16, 2026

Chinese AI Quality Analyst, Personalized Response Evaluation

Join OpenTrain to evaluate personalized AI responses in Chinese: a part-time contractor role (20+ hrs/week) paying $15/hr, worldwide remote. You'll design multi-turn prompts, compare side-by-side answers, and write concise, structured rationales calling out grounding and inference errors.

Generative AI & RLHF
Text
Remote · Worldwide
Chinese
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Jul 16, 2026

Gemini Personalization AI Quality Analyst (Spanish)

Contractor role evaluating Spanish-language personalization for Gemini: design multi-turn prompts, rate side-by-side model outputs, and write clear, defensible rationales. 3-month engagement, remote worldwide, $15/hr, 20+ hrs/week with daily availability and a 4-hour PST overlap required.

Generative AI & RLHF
Text
Remote · Worldwide
Spanish
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

AI Quality Analyst (Personalization), Arabic

Join OpenTrain AI as a contractor evaluating a model personalization feature in Arabic: design multi-turn prompts, compare side-by-side responses, and write clear rationales. 3-month contract at $15/hr with a flexible schedule (20+ hrs/week typical) and required PST overlap.

Generative AI & RLHF
Text
Remote · Worldwide
Arabic
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 16, 2026

Portuguese AI Personalization Quality Analyst

Join OpenTrain as a Portuguese AI Personalization Quality Analyst evaluating personalized generative responses using your own conversation context — remote, contractor, 20+ hrs/week at $15/hr. Create multi-turn prompts, compare model outputs, and write precise rationales to improve grounding and hel

Generative AI & RLHF
Text
Remote · Worldwide
Portuguese
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Jul 16, 2026

Russian Language AI Analyst

Work remotely as a bilingual (Russian/English) AI analyst creating summaries, validating claims, and solving analytical puzzles to improve large language models; entry-level, 20+ hours/week, contractor/part-time work through OpenTrain.

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

Posted Jul 16, 2026

Finnish Language AI Training Analyst

Join OpenTrain AI as a Finnish-language analyst helping fine-tune LLM reasoning: read and deconstruct Finnish text, verify facts via web research, and create analytical training scenarios. Remote, contractor role for a short-term 1-month assignment with up to 40 hrs/week and US Pacific overlap.

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

Posted Jul 16, 2026

LLM Code Evaluation Software Engineer

Evaluate and improve AI-generated code while building verification systems for cutting-edge language models. This flexible contractor role is open to software engineers in the US, Canada, and select Western European countries.

Coding & Software
Computer Code Programming
Remote · United States, Canada, Austria +7 more
English
Part-time · Flexible
Entry level

Posted Jul 16, 2026

Finance Model Evaluation Expert

Join OpenTrain AI to evaluate LLM outputs in finance, design rubrics, and help shape model training and benchmarks. Part-time contractor role (<20 hrs/week), remote worldwide, paying $100/hr for finance professionals with 2+ years' experience.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $100/hr

Posted Jul 16, 2026

Software Engineering Code Evaluator

Evaluate and improve AI-generated code while creating benchmarking datasets for advanced software engineering models. This expert, remote contract role is part time at less than 20 hours per week.

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

Posted Jul 16, 2026

LLM Evaluation & Repository Validation Engineer

Evaluate real software repositories and help measure how well AI coding systems fix bugs. This remote, three-month contractor assignment offers 20 hours per week for engineers skilled in codebases, testing, Git, and Docker.

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

Posted Jul 16, 2026

Advanced Math Research Analyst, Remote Contractor

Join OpenTrain to train large language models by solving, researching, and writing clear step-by-step math and logic explanations; remote contractor role with a minimum 20 hours/week and a 1-month contract. Ideal for strong math communicators who enjoy structured problem solving.

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

Posted Jul 16, 2026

Senior Python Developer for AI Model Evaluation

Use advanced Python skills to evaluate AI models, create training data, rank responses, and improve coding-focused systems. This worldwide contract role offers flexible part-time work of 20+ hours per week.

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

Posted Jul 16, 2026

Python AI Model Training & Evaluation Engineer

Build and evaluate AI systems through Python development, supervised fine-tuning, RLHF, response ranking, and public-data analysis. This fully remote contractor role offers 20, 30, or 40 hours per week for a one-month engagement.

Coding & Software
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Jul 16, 2026

Pro Bono Civil Legal AI Reviewer

Join OpenTrain AI to evaluate AI-generated civil legal analyses focused on housing, family, consumer, foreclosure, and debt matters; provide structured written feedback to improve legal AI reasoning. Remote contract role for U.S.-bar attorneys, 20+ hours/week at $170/hr.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $170/hr

Posted Jul 16, 2026

Funds Contract Redlining Attorney

Join OpenTrain as a remote Funds Contract Redlining Attorney to train and evaluate legal AI by running redlines, simulated negotiations, and grading model outputs. Part-time contractor role (20+ hrs/week) paying $90–$130/hr; J.D. and active U.S. bar required.

Legal & Finance
Text
Remote · Worldwide
English
Part-time · Flexible
Intermediate level
Hourly · $90–$130/hr

Posted Jul 16, 2026

AI Evaluation Analyst, LLM Conversation & Rubric Authoring

Create multi-turn conversations, rubrics, and evaluation assets for frontier LLMs while working remotely as a contractor 20+ hours/week. Rapid onboarding and clear specs; paid on a per-task/hour basis at $20–$30/hr.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $20–$30/hr

Posted Jul 16, 2026

LLM Red-Teamer for Adversarial Testing and Evaluation

Join OpenTrain as a remote LLM Red-Teamer to design adversarial multi-turn conversations, write rigorous evaluation rubrics, and validate frontier language models 20+ hrs/week for $40–$65/hr. Prior RLHF or evaluation experience is helpful but not required.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $40–$65/hr

Posted Jul 16, 2026

Hindi Audio Engineer (Remote, Part-Time)

OpenTrain is hiring a Hindi Audio Engineer to edit, mix, master and quality-review Hindi audio for AI training projects; flexible contractor work under 20 hrs/week, paid $20–$30/hr. Native or near-native Hindi required.

Audio & Speech
Audio
Remote · Worldwide
Hindi
Part-time · Flexible
Entry level
Hourly · $20–$30/hr

Posted Jul 16, 2026

Spanish (Mexico) Voice Actor, Remote Recording

Record expressive Spanish (Mexico) voice performances for AI training, delivering production-ready audio from your home studio; paid up to $65/hr for 20+ hours/week. Join OpenTrain to help shape how speech AI understands tone, emotion, and natural conversation.

Audio & Speech
Audio
Remote · Worldwide
Spanish
Part-time · Flexible
Intermediate level
Hourly · $20–$65/hr

Posted Jul 16, 2026

Video Content Data Labeling Associate

Join OpenTrain as a part-time Video Content Data Labeling Associate to annotate short first-person household-task videos (classification and object detection). Entry-level friendly, remote worldwide, $10–$12/hr for 20+ hours/week.

Image & Video Annotation
Video
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $10–$12/hr

Posted Jul 16, 2026

AI Quality Analyst, Portuguese (Portugal)

Join OpenTrain as a part-time AI Quality Analyst evaluating a conversational AI personalization feature; Portuguese fluency required. Remote, contractor work at $15/hr with a 20+ hour weekly commitment—you'll design personal prompts, compare side-by-side responses, and write defensible rationales.

Generative AI & RLHF
Text
Remote · Worldwide
Portuguese
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Jul 15, 2026

Finance AI Model Evaluator

Evaluate and improve large language models on real finance tasks — capital markets, trading, M&A, accounting and more. Contract, part-time role (20+ hrs/week) paid $100/hr; English required and open worldwide through OpenTrain.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $100/hr

Posted Jul 15, 2026

AI Quality Analyst, Personalization (German)

Evaluate a new personalization feature for a conversational AI in German: design multi-turn prompts, compare side-by-side responses, and write clear rationales. Contractor role, $15/hr, 3-month engagement, remote with required PST overlap.

Generative AI & RLHF
Text
Remote · Worldwide
German
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jul 15, 2026

What this work can involve

AI training is human work that helps prepare and review examples used by artificial-intelligence systems. Depending on the role, tasks can include labeling 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 posting determines whether the role is eligible, along with its responsibilities and other requirements.

  • Possible tasks include image or video annotation, audio work, response evaluation, search assessment, translation, code review, and subject-matter work.
  • The individual posting controls the responsibilities, qualifications, experience, hours, pay, schedule, and location rules.
  • Acceptance of applicants located in Luxembourg for one role does not establish eligibility for another.

How hiring works through OpenTrain

OpenTrain is the hiring organization for the roles published on OpenTrain, including roles that accept applicants located in Luxembourg. Candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Review each individual live posting for all role-specific details.

  • Candidates apply through OpenTrain.
  • The individual live posting provides the applicable role-specific details.
  • OpenTrain may place or refer successful candidates to the client whose project they will support.

Frequently asked questions

What can this work involve?
AI training and data labeling work can involve preparing or reviewing examples for artificial-intelligence systems. Tasks may include image or video annotation, audio transcription or recording, writing or rating model responses, evaluating search results, translation, code review, or applying subject-matter knowledge. The exact duties depend on the individual live posting.
Where can I find role-specific details?
Find role-specific details in the individual live posting. It is the source of truth for eligibility of applicants located in Luxembourg, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for roles published on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Refer to each individual live posting for all other role-specific details.