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.
Join OpenTrain to audit and improve LLM prompts and model answers on vehicle systems—verify calculations, rate against rubrics, and draft better solutions. Part-time contractor role, $40/hr, under 20 hours/week; requires 3+ years in automotive engineering and practical Python.
Posted Oct 1, 2025
Contractors wanted to mark scene cuts and transitions in ~1,000 YouTube videos (5–10 min each) using uLabel; project runs 4–6 weeks with a preferred team of 10–15 annotators. Pay is $4/hour — applicants must show prior video annotation experience and a QA process.
Posted Sep 14, 2025
Write 50–250-word narrative captions that capture setting, dialogue, actions and emotion for short video clips; Captioner pay $25.75/hr and Senior QC $33.00/hr. USA-based native English speakers only; 20+ hours/week and reliable streaming internet required.
Posted Sep 14, 2025
Annotate guitar fretboards in images using Label Studio — polygon annotations per fret, one polygon/box for the playing surface, and a box/polygon for the nut; exclude the player's hand. Entry-level, remote contractor work; fixed-price $500 for the project.
Posted Sep 8, 2025
Join OpenTrain AI as a part-time contractor applying mathematical statistics with Python (numpy, scipy, statsmodels, pandas) to analyze messy datasets, run hypothesis tests and regressions, and produce clear, reproducible summaries; remote, <20 hrs/week at $25/hr.
Posted Sep 3, 2025
Part-time contractor role building ETL pipelines and interactive dashboards using Python, Plotly/Dash, and SQL. Entry-level, remote work under 20 hrs/week at $25/hr — ideal for hands-on data analysts who document clearly and translate questions into visuals.
Posted Sep 3, 2025
Seeking native Mandarin speakers based in Singapore with C1+ English to evaluate and rate generative AI outputs; 20+ hours/week, contract role paying USD 12/hour. Work reviewing text (and occasional images/video), classifying responses, and flagging safety or factual issues.
Posted Sep 2, 2025
Record ~30 short phone greetings and voicemail clips in your native European language and earn $24–$36; most participants finish in 30–45 minutes. Remote, flexible contractor work for in-country native speakers with a smartphone and local mobile number.
Posted Aug 26, 2025
Entry-level contractor role labeling one target object per image using polygon segmentation in CVAT (SAM may be used with manual correction). Pay is $0.04 per labeled image; work is worldwide and continuous as the dataset (~18,000 images and growing) expands.
Posted Aug 25, 2025
Join OpenTrain AI as a freelance AI code reviewer (20+ hrs/week, $15/hr). Apply for one primary language—Python, JavaScript/TypeScript, Rust, or Ruby—and be sure to state which language you are applying for.
Posted Aug 1, 2025
Join a 3–6 month, fully remote U.S. contract evaluating AI-generated text against elementary ELA standards; Expert annotators (5+ years U.S. classroom experience) and Standard annotators (2+ years) can earn $35/hr with flexible, part-time hours (10+ hrs/week).
Posted Jul 31, 2025
Build and own the infrastructure that powers LLM training and agent evaluation at OpenTrain AI; remote for US & Canada, 20+ hours/week, contractor roles with hourly pay tiers (Junior $34 / Middle $37 / Senior $42). Shortlisted candidates complete a timed HackerRank and platform coding test.
Posted Jul 25, 2025
Join OpenTrain AI to build the Python infrastructure that powers LLM training and agent evaluation. Fully remote for Asia‑Low region, 20+ hrs/week contract work with tiered hourly pay; requires 5+ years Python, Docker, CI/CD, FastAPI/Flask, and Linux expertise.
Posted Jul 25, 2025
Join OpenTrain AI as a part-time contractor performing in-app actions and finding information to train reinforcement-learning systems; entry-level, remote, $11/hr, 20+ hours/week using internal tooling and short task instructions.
Posted Jul 22, 2025
Join OpenTrain AI to audit AI-generated Bash scripts: validate code in isolated environments, enforce security and reliability best practices, and coach annotators. Remote contractor role, 20+ hrs/week at $21/hr.
Posted Jul 10, 2025
OpenTrain AI is hiring a Senior PowerShell Code Reviewer to validate annotator reviews of AI-generated PowerShell scripts, running checks in sandboxed environments and giving rubric-based corrections and feedback. Part-time contractor role, 20+ hours/week, $24/hr, remote worldwide.
Posted Jul 10, 2025
OpenTrain AI is hiring senior Go engineers to audit annotator reviews of AI-generated Go code: run snippets in sandboxes, confirm correctness and security, correct mis-ratings, and provide clear, rubric-driven feedback. Remote, contractor, 20+ hrs/week at $24/hr.
Posted Jul 10, 2025
Audit AI-generated JavaScript/Angular submissions by building and running projects, checking functionality, security, performance, and accessibility, and correcting mis-ratings with concise feedback. Remote contractor, 20+ hrs/week at $23/hr; requires 7+ years professional Angular experience.
Posted Jul 8, 2025
Join OpenTrain AI to audit AI-generated TypeScript + React code: compile, run in sandboxes, verify prompt compliance, and correct annotator ratings with clear feedback. Remote, contract, 20+ hrs/week at $25/hr—requires 7+ years of professional TypeScript/React experience.
Posted Jul 8, 2025
Contract, remote role auditing AI-generated Angular (v15+) TypeScript code: verify builds, security, performance, and accessibility; correct mis-ratings and give concise rubric-aligned feedback. 20+ hrs/week, $24/hr — ideal for experienced Angular engineers.
Posted Jul 8, 2025
Join OpenTrain AI to audit AI-generated Node.js code by running snippets in sandboxed containers, correcting mis-ratings, and giving concise feedback to meet security, performance, and quality rubrics — $24/hr, 20+ hrs/week, fully remote.
Posted Jul 8, 2025
OpenTrain AI seeks an experienced Docker-focused code reviewer to validate annotator reviews of AI-generated Dockerfiles and orchestration snippets; $24/hr, 20+ hrs/week, remote contractor role. Run builds in sandboxed VMs, flag issues, and provide concise remediation notes to meet a strict quality
Posted Jul 8, 2025
Join OpenTrain AI to audit annotator reviews of AI-generated C code: compile and run snippets in sandboxed containers, verify correctness under multiple build flags, and enforce security and performance best practices. Part-time contractor, remote, 20+ hrs/week at $24/hr.
Posted Jul 8, 2025
Audit and validate AI-generated C# code by compiling and running snippets in isolated containers, correcting reviewer ratings, and delivering clear, actionable feedback. Part-time contractor role (20+ hrs/week) paid $25/hr for experienced .NET engineers.
Posted Jul 8, 2025
Join OpenTrain AI to audit and correct reviews of AI-generated C++ snippets—compile and run code in sandboxed containers, verify correctness, and provide rubric-based feedback. Remote, contract role — 20+ hrs/week at $25/hr; requires 7+ years professional C++ experience.
Posted Jul 8, 2025
Join OpenTrain to audit AI-generated Java code: compile and run snippets in sandboxed environments, verify correctness, security, and performance, and correct annotator ratings. Remote contractor, 20+ hrs/week at $25/hr; requires 7+ years modern Java experience and strong testing/concurrency skills.
Posted Jul 8, 2025
Audit and correct annotator reviews of AI-generated HTML/CSS, ensuring semantic markup, accessibility, performance, and security. Remote contractor role (20+ hrs/week) for senior front-end specialists with 7+ years’ experience — $23/hr.
Posted Jul 8, 2025
Audit and validate annotator evaluations of AI-generated JavaScript/React code by running proof-of-work checks, verifying execution, and enforcing security and guideline standards. Part-time, remote contractor role (20+ hrs/week) paying $24/hr for experienced React reviewers.
Posted Jul 8, 2025
Join OpenTrain AI as a part-time Senior Python Code Reviewer to audit AI-generated Python snippets in containerized sandboxes; $18/hr, remote, under 20 hrs/week. Bring 7+ years of Python experience and mandatory Docker proficiency to validate correctness, security, and guideline compliance.
Posted Jul 7, 2025
Annotate short soccer video clips by identifying gameplay actions and writing clear 1–2 sentence captions; requires strong soccer knowledge, good English, and attention to detail. Remote, part-time contract work (under 20 hrs/week) at USD 3.50/hour.
Posted Jul 1, 2025
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.
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.
