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Remote AI training and data labeling jobs in Greece

Located in Greece and exploring AI-training or data-labeling work? OpenTrain is the hiring organization for these roles, candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they support. These listings accept applicants located in Greece and involve tasks used to teach and evaluate machine-learning systems; inspect each live posting for the specific eligibility, hours, pay, qualifications, and any client requirements that apply.

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

Transformers Developer, Code Evaluation & AI Review

Experienced Transformers developer needed to evaluate AI-generated Transformers code, run technical interviews, and provide structured feedback to improve model usage and documentation. Remote, contract, part-time work at $27/hr for contributors with hands-on Hugging Face experience.

Generative AI & RLHF
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $27/hr

Posted Mar 10, 2025

ChromaDB Developer, Code Review & Evaluation

OpenTrain AI seeks a ChromaDB developer to review and label AI-generated ChromaDB code, provide structured technical feedback, and run technical screening interviews; part-time contractor, $25/hr, under 20 hrs/week, fully remote.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 10, 2025

LlamaIndex Developer, Code Review & Evaluation

Join OpenTrain to review and evaluate AI-generated LlamaIndex code and prompts, providing detailed, structured feedback to improve RAG integrations. Remote contract, up to 20 hrs/week at $25/hr; requires 5+ years hands-on LlamaIndex experience and strong English writing.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 10, 2025

Godot v4 Developer for AI Code Review

Seeking an experienced Godot v4 developer (5+ years) to review, label, and critique AI-generated Godot v4 code and explanations; provide clear, structured feedback to improve AI outputs. Part-time contractor, remote, $25/hr, under 20 hours/week.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 10, 2025

Angular v17 Developer, AI Code Evaluation

Join OpenTrain as a remote, part-time Angular v17 developer to evaluate and label AI-generated code responses; you’ll identify bugs, suggest improvements, and provide clear written feedback. Requires 5+ years hands-on Angular v17 experience and strong English writing; $20/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $20/hr

Posted Mar 10, 2025

Shanghainese Speech Evaluator (Remote, Part-Time)

Use your Shanghainese expertise to record and rate AI speech for pronunciation and fluency — remote, flexible contract work at $23/hr. Help iterate AI responses until multiple outputs receive a perfect 7/7 naturalness score.

Audio & Speech
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $23/hr

Posted Mar 7, 2025

Singlish Chatbot Trainer: Write, Edit and Rate AI Responses

Join OpenTrain as a part-time contractor helping train an AI chatbot to understand and speak natural Singlish. This role pays $23/hr, requires Singapore native residency, and involves writing, editing, and rating AI-generated Singlish text.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $23/hr

Posted Mar 7, 2025

C# Godot Expert, Code Review & Model Evaluation

Join OpenTrain as a remote C# Godot specialist to review and annotate AI-generated C# Godot code, providing clear feedback that improves model output. This part-time contractor role requires 5+ years of Godot experience, excellent English writing, and pays $25/hr for under 20 hours/week.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 7, 2025

Angular Expert, AI Code Evaluation & Review

Review AI-generated Angular code, assess correctness and best practices, and provide clear written feedback to improve model outputs. Part-time contractor role, $25/hr, remote worldwide, under 20 hours/week.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Mar 7, 2025

US Culture-Savvy Book Lovers for AI Chat Feedback

Join OpenTrain AI for three short AI-driven chat sessions (60–90 minutes total) about U.S. books and authors, and give feedback on AI reading suggestions. Must be fluent in English, familiar with U.S. culture, love reading, and available for three 20–30 minute sessions; paid $6.65/hr.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $6.65/hr

Posted Mar 3, 2025

Board-Certified Radiologist, Remote Medical Image Annotator

Use your ABR/AOBR board certification to annotate DICOM radiology images remotely for a short, high-pay contract: part-time (5–15 hrs/week), 1–2 months at $150/hr. Flexible schedule; work as a contractor on a secure platform with detailed labeling guidelines.

Medical & Health
Medical Dicom
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $150/hr

Posted Feb 27, 2025

Create Gold SQL Queries For Sports Database

Build 100 perfect SQL queries that answer natural-language sports questions using a provided database; contract, remote, 20+ hrs/week at $40/hr while working East Coast hours from Monday 24th to Wednesday 26th.

Coding & Software
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $40/hr

Posted Feb 22, 2025

LLM Trainer for Medical Data Extraction (MIMIC-4)

Contractor wanted to collect urine output and serum creatinine data from MIMIC-4 using MedPALM2 or BioBERT to train an LLM-based scoring model; intermediate experience preferred. Fixed-price contract: USD 1,000; open worldwide.

Medical & Health
Medical Dicom
Remote · Worldwide
Flexible hours
Intermediate level
Fixed price · $1000

Posted Feb 19, 2025

English Text Annotation & Review (Argentina)

Argentina-based freelancers with B2+ English are needed to review and correct pre-annotated English text tags using an online labeling tool; part-time contractor work under 20 hrs/week at $3.50 USD/hour. Entry-level friendly—previous labeling experience and attention to detail are a plus.

General Annotation
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $3.5/hr

Posted Feb 17, 2025

Audio Transcription (Native English, USA/Canada)

Transcribe and label short English audio clips for OpenTrain AI on a remote, part-time contract at $15/hr. Native US/Canada speakers with strong listening skills and attention to detail are needed for a 1+ year commitment (1 hour/day, Mon–Fri).

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Feb 11, 2025

Creative Prompt & Response Writer, US/Canada

Write original prompt-and-response pairs from website screenshots to improve AI understanding of visual web content; must be a native English speaker based in the U.S. or Canada, available to start immediately and commit 20+ hours/week at $21/hr.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $21/hr

Posted Feb 4, 2025

Mandarin Electrical Engineering QA Review With Document Matching

Review 50–100 Mandarin electrical engineering QA pairs, verify each answer against provided documents using a document-finding tool, and add precise citations for RAG. Contract, part-time work at $40/hr, ~20–40 hours total and 20+ hrs/week.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $40/hr

Posted Feb 3, 2025

Compare Model and Expert Answers for Dutch Corporate Law

Compare 80 model responses to expert (gold) answers for Dutch corporate financial law documents, identify mismatches, and deliver clear top-level insights; remote, contractor role at $40/hr, ~20+ hours/week.

Legal & Finance
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $40/hr

Posted Jan 28, 2025

Frontend Web Developer (HTML/CSS/JS), India, C1/C2

OpenTrain is hiring frontend developers in India to create Q&A, sketch annotations, and code edits from website screenshots. Must have official C1/C2 English documentation, 2+ years HTML/CSS/JS, immediate availability, 20+ hrs/week at $13/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $13/hr

Posted Jan 10, 2025

Dutch Speech Annotation, Remote Contract Work

Join OpenTrain AI to annotate short Dutch audio clips (classification & segmentation) in a remote, entry‑level contract project paid as a fixed price of USD 400.26; training on our proprietary tool is provided.

Audio & Speech
Audio
Remote · Worldwide
Flexible hours
Entry level
Fixed price · $400.26

Posted Jan 9, 2025

Flemish Native Speakers, Audio Annotation (Contract)

Join OpenTrain AI as a part-time contractor to transcribe and label audio; native Flemish required, training provided, 20+ hrs/week commitment, $300 fixed payment per project. Work remotely using internal tooling and basic Google Sheets.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $300

Posted Jan 8, 2025

Bashkir Audio Transcriber & Annotator, Remote, Part-Time

Join OpenTrain to transcribe and label Bashkir audio using our internal tools; training is provided and no prior experience is required. This contractor role asks for 20+ hrs/week (about 3–5 hours daily) and pays a fixed $300 for the assignment.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $300

Posted Jan 8, 2025

Kabyle Audio Transcription & Annotation (Remote, Part-Time)

Join OpenTrain AI as a remote contractor to transcribe and label Kabyle audio using our internal tools; entry-level candidates receive full training. This contract pays a fixed USD 270 and expects 20+ hours/week (roughly 3–5 hours/day).

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $270

Posted Jan 7, 2025

Haitian Creole Audio Annotator

Join OpenTrain to annotate Haitian Creole audio: transcribe, label speech segments, and apply quality-focused guidelines. Part-time contractor work (20+ hrs/week, ~3–5 hrs/day) with training provided and a fixed price of $270 for the project.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $270

Posted Jan 7, 2025

Sindhi Audio Transcriber & Speech Labeler

Native Sindhi speakers wanted to transcribe and label audio remotely — training provided and no prior experience required. Part-time contract work (20+ hrs/week; 3–5 hrs/day typical) with a fixed payment of $200 USD using OpenTrain's annotation tools.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $200

Posted Jan 7, 2025

Native Gujarati Audio Annotator, Remote Part-Time

OpenTrain AI is hiring native Gujarati speakers for a remote audio annotation project (classification and segmentation). Entry-level, training provided; contractors work 20+ hours/week on a part-time schedule for a fixed $100 project payment.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $100

Posted Jan 7, 2025

Native Tamil Audio Annotator (Remote, Part-Time)

OpenTrain AI seeks native Tamil speakers to annotate audio: segment speech, classify clips, and transcribe recordings. Entry-level, contractor role with a fixed-price payment of $100; expect to work 3–5 hours daily using OpenTrain AI’s annotation tools and provided guidelines.

Audio & Speech
Audio
Remote · Worldwide
Flexible hours
Entry level
Fixed price · $100

Posted Jan 6, 2025

Gujarati Data Annotation Specialist

Join OpenTrain AI to transcribe and segment Gujarati audio using internal tools — training provided and no prior experience required. This contractor role pays a fixed USD 115, requires native Gujarati and basic Google Sheets skills, and asks for 3–5 hours of daily availability.

Audio & Speech
Audio
Remote · Worldwide
Flexible hours
Entry level
Fixed price · $115

Posted Jan 4, 2025

Operating Systems Subject Matter Expert (India, C1 English)

Join OpenTrain to create and refine high-quality AI training data about operating systems — remote work for India-based experts with strong OS, scripting, and documentation skills. $25/hr, part-time contract, <20 hrs/week.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Jan 2, 2025

System Administrator SME for AI Training (India, C1 English)

Use your 7+ years of system administration experience to write, review, and explain real-world sysadmin tasks for AI training datasets. Contractor, part-time role paying $25/hr; India-based applicants with C1 English will be considered.

Generative AI & RLHF
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25/hr

Posted Jan 2, 2025

What this work can involve

Work open to applicants located in Greece can cover a range of tasks used in AI development and evaluation. Tasks can include creating labeled data for images or video, transcribing or reviewing audio, rating model responses, checking search or recommendation outputs, localizing or translating content, and applying subject knowledge to judge correctness. Exact duties and definitions of acceptable work are set in each individual posting.

  • Annotating images, video, or text to produce structured training data.
  • Transcribing, validating, or labeling audio and speech content.
  • Rating or evaluating model outputs, translations, or search results.

How hiring works through OpenTrain

OpenTrain is the hiring organization for roles that accept applicants located in Greece, and candidates apply through OpenTrain; OpenTrain may place or refer successful candidates to the client whose project they support. Every live posting is the authoritative source for role-specific eligibility, qualifications, hours, pay, schedule, and any client rules.

  • You apply through OpenTrain; consult each posting for the exact requirements.
  • OpenTrain hires and may place or refer successful candidates to the client project.

Frequently asked questions

What can this work involve?
AI-training and data-labeling work for applicants located in Greece can involve hands-on tasks that produce or evaluate examples used by machine-learning systems. Examples include drawing bounding boxes or segmentation masks on images, tagging text for sentiment or intent, transcribing spoken audio, rating generated responses against guidelines, and reviewing search or recommendation outputs for relevance. Each posting defines the exact task set and the expected deliverables, so review the live listing to see what a specific role requires.
Where can I find role-specific details?
The individual live posting is the only source of truth for role-specific details. Each listing will state eligibility, responsibilities, required qualifications, experience expectations, pay, hours, schedule, and any location or client rules that apply; read the posting carefully before applying to confirm you meet the listed requirements.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for the roles that accept applicants located in Greece, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. For everything else about how a particular role is run or what it requires, refer to the individual live posting.