Looking for remote AI training or data labeling work open to applicants located in Croatia? OpenTrain is the hiring organization, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they support. Review each posting because eligibility and role details can differ.
Part-time remote contractor role helping train AI systems by writing, reviewing, and rating business-operations content; $50–$60/hr, ~20 hrs/week for 1–3 months with estimated earnings of $8,000–$9,600. English fluency and real-world business analytics experience required.
Posted Jun 28, 2026
Join OpenTrain AI as a remote Business Intelligence Excel Consultant to review large Excel-based datasets, improve model outputs, and provide clear, stakeholder-ready feedback; $40–$50/hr, 20+ hours/week.
Posted Jun 28, 2026
Evaluate AI-generated business documents in Chinese—review Excel, PowerPoint and Word deliverables for accuracy, clarity, and professional polish, provide structured feedback across finance, strategy, marketing and operations, and help improve AI outputs. Remote contract; 20+ hrs/week; $20–$70/hr.
Posted Jun 28, 2026
Join OpenTrain to apply your biology expertise to train and evaluate AI models: write expert responses, review model outputs, and provide clear scientific feedback. Remote, part-time contractor work paying $80–$90/hr for roughly 20 hours/week over 1–3 months.
Posted Jun 28, 2026
OpenTrain AI is hiring fluent Modern Standard Arabic transcribers to produce and correct high-accuracy audio transcriptions, add metadata, and provide quality feedback. Remote contract role, 20+ hours/week, pay $10–$20 USD/hour.
Posted Jun 28, 2026
Join OpenTrain as a part-time contractor building production ML pipelines, deploying models on AWS, and orchestrating containerized workloads; remote worldwide, 20+ hrs/week, pay $30–$90/hr.
Posted Jun 28, 2026
Join OpenTrain AI as a remote contractor to evaluate and improve AI outputs for .NET, C#, AWS, and Azure—review code snippets, diagrams, and technical docs. Part-time (20+ hrs/week) with competitive pay in the posted $30–$90/hr range.
Posted Jun 28, 2026
Join OpenTrain AI to label humanoid robotics video for VLA models as a Level B annotator — 20+ hrs/week, contractor, paid USD $6/hr (range $5–$8); Encord experience preferred but other platform experience is accepted.
Posted Jun 27, 2026
Join OpenTrain as a contract redlining attorney to perform simulated negotiations, review AI contract responses, and build objective evaluation frameworks; part-time remote contractor work, flexible schedule, $80–$105/hr for ~20 hours/week over 1–3 months.
Posted Jun 27, 2026
Use your telecom systems expertise to train and evaluate AI: remote, contract, 20+ hrs/week with pay up to $75/hr. Review AI-generated telecom content, document protocols, and shape training materials for practical AI understanding.
Posted Jun 27, 2026
Work remotely as a Swedish-language AI training specialist translating, proofreading, and localizing business documents and customer communications; 20+ hours/week, contractor, paid $45–$95 USD/hr. Bring native Swedish fluency and a quality-first approach to shape real-world AI language behavior.
Posted Jun 27, 2026
Review scientific figures, lab reports, and technical publications to evaluate model outputs and deliver clear, rubric-based feedback; remote contractor role paying $40–$50/hr, 20+ hrs/week, estimated project earnings $6,400–$8,000.
Posted Jun 27, 2026
Join OpenTrain AI as a remote Sanskrit Language Specialist to translate, proofread, and create high-quality Sanskrit content on a part-time contract basis (under 20 hrs/week). Competitive pay range $45–$95/hr based on work and experience.
Posted Jun 27, 2026
OpenTrain AI is hiring an intermediate UI/UX Designer for a short contract role (fixed price $100) with a remote, worldwide scope; applicants will complete a brief AI-driven interview that evaluates design skills, tools knowledge, and portfolio work.
Posted Jun 15, 2026
Label and review short educational content about carbohydrates, lipids, proteins, and DNA/RNA in a bilingual Odia–English project. Fixed-price contract ($20) for contributors who can do text generation, rating, and question answering.
Posted May 15, 2026
OpenTrain AI seeks detail-oriented contractors to extract structured data from legal, finance, and compliance documents (PDF/DOCX). Part-time, remote work validating and editing AI draft outputs into a required JSON schema; pay USD 8.00–11.20/hr.
Posted May 14, 2026
OpenTrain AI seeks licensed pathologists (MD/DO) to compare whole‑slide images and rate superresolution algorithm outputs; remote, contract, part‑time work at a competitive hourly rate (typical $150/hr; $100–$200/hr).
Posted May 12, 2026
Join an academic research project validating and refining image–text samples of African cultural content; native fluency required. Flexible, remote contract work paid $0.29 per sample with weekly payouts and an initial 50-sample pilot per language.
Posted Apr 28, 2026
Annotate and restructure accounting and finance PDFs—verify OCR, correct tables, and produce clean HTML and JSON key‑value outputs. Remote contractor role, 20+ hrs/week, $7–$9 USD/hour; ideal for candidates with bookkeeping, audit, or finance reporting experience.
Posted Apr 27, 2026
Record scripted Dutch dialogue for OpenTrain AI using a professional recording setup; native Dutch fluency and clean, unprocessed audio are required. This part-time contractor role is remote, flexible, and pays a competitive hourly rate.
Posted Apr 23, 2026
Rate and evaluate image quality for dataset development in a remote, part-time contractor role paying $5–$7/hr. Must be fluent in English, have intermediate experience with image quality evaluation or annotation, and be available 20+ hours/week.
Posted Apr 15, 2026
Record high-quality narrated audio for AI training with a flexible part-time contract. Must have professional recording equipment, fluent English, and the ability to follow precise tone, pacing, and pronunciation instructions; paid $50/hr (range $40–$60).
Posted Apr 10, 2026
OpenTrain AI is hiring a remote QC specialist to review and correct auto-annotated refinery image frames (8,000). Fixed-price contract ($1,200), 20+ hours/week, using CVAT to adjust bounding boxes and classifications with strong attention to detail.
Posted Apr 5, 2026
Contract role to design and evaluate computer-science problems and validate AI solutions using Python (NumPy/Pandas/SciPy). Remote, project-based work paying $15–$40/hr with a typical commitment of ~10–20 hours/week during active phases.
Posted Apr 5, 2026
Join OpenTrain to design reproducible, industry-grade data science problems and prompts for GenAI training; contract, part-time work (≈10–20 hrs/week) with pay up to $40/hr. Ideal for senior data scientists with expert Python, SQL and ML/MLOps experience.
Posted Apr 5, 2026
Create and verify original computational STEM/ML problems for GenAI training—contract, remote, ~10–20 hrs/week, paid hourly (up to $40/hr). Must have 5+ years ML experience, expert Python and SQL, strong statistics, and written English (C1+).
Posted Apr 5, 2026
Join OpenTrain AI as a remote, part-time contractor to evaluate and localize AI-generated Chinese (Simplified) and English content; requires 5+ years' localization/translation experience, native or near-native Chinese and C1 English, 20+ hours/week, paid $17–$23/hr.
Posted Apr 3, 2026
Join OpenTrain AI as a remote, contractor AI Safety LLM Trainer reviewing Korean and English model outputs for safety, policy alignment, and red-team testing; hourly pay $28–$38 and 20+ hours/week. Use senior Trust & Safety experience to rate, analyze, and improve model behavior with clear, reproduc
Posted Apr 3, 2026
Remote, part-time contract reviewing AI outputs for safety, correctness, and cultural nuance in Japanese and English; $27–$31/hr, 20+ hours/week. Use your Trust & Safety and red-teaming experience to shape safer AI behavior across languages.
Posted Apr 3, 2026
Join OpenTrain AI to evaluate and create Japanese-localized AI training content, testing models for accuracy, bias, and cultural fit. Fully remote contractor role paying $24–$31/hr (typical $28/hr); requires native or near-native Japanese and C1-level English.
Posted Apr 3, 2026
AI training and data labeling work can involve preparing or reviewing examples used by artificial-intelligence systems. Depending on the role, tasks may 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. A remote role that accepts applicants located in Croatia is not necessarily physically based there, and each posting determines its own location rules and responsibilities.
OpenTrain is the hiring organization for roles available through OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they support. Individual postings control eligibility, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements, so read the relevant listing for the details that apply.
