Looking for remote AI training or data labeling work you can do from Slovakia? These roles explicitly accept applicants located in Slovakia, but eligibility can change by posting and remote work does not mean a role is physically based there. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.
Submit original medical documents you authored to help train AI — remote contractor role paying $20–$40/hr for 20+ hours/week. Worldwide, English-language submissions only; strong de-identification and medical judgment required.
Posted Jul 3, 2026
Annotate short first-person household task videos to train AI: classify clips, track objects across frames, and write clear quality judgments. Remote contractor role, $20/hr, 20+ hrs/week, start within ~24 hours with estimated project earnings of $3,200.
Posted Jul 3, 2026
Join OpenTrain as a Senior Full Stack Engineer building web systems that power AI-training workflows. Remote contractor role, 20+ hrs/week, pay $30–$90/hr; 3+ years full‑stack experience required.
Posted Jul 3, 2026
Work remotely as a Software Engineer on Human Data Platforms building document workflows and pipelines for AI training; part-time contractor role at $50–$70/hr (20+ hrs/week) requiring Python, React, cloud, and document-processing experience.
Posted Jul 3, 2026
Join OpenTrain AI as a contract Cocos2d-x developer building and refining 2D gameplay systems that support AI training and data-generation projects. Remote, part-time (20+ hrs/week), pay up to $120/hr; entry-level candidates with hands-on Cocos2d-x experience encouraged to apply.
Posted Jul 3, 2026
Join OpenTrain AI as a part-time, remote Medical / Healthcare AI Trainer reviewing clinical documentation and care workflows; $15–25/hr, 20+ hours/week. No prior AI experience required—bring healthcare knowledge, attention to detail, and clear writing.
Posted Jul 1, 2026
Join OpenTrain AI as a remote voice actor to record and review audio for Voice Performance Training—contractor, flexible schedule, $20–$50/hr with typical commitment 20+ hrs/week and estimated earnings of $3,200–$8,000.
Posted Jun 30, 2026
Join OpenTrain as a Video AI Training Specialist reviewing and annotating AI-generated and real-world video. Part-time contractor role (20+ hrs/week) paying $65–$80/hr, ideal for experienced video professionals who enjoy precise critique and dataset work.
Posted Jun 30, 2026
Join OpenTrain as a Video Editor AI Training Specialist to review AI-generated animations and VFX, build evaluation rubrics, and curate video datasets; remote, 20+ hrs/week, paid $30–$80/hr (up to $80/hr).
Posted Jun 30, 2026
Join OpenTrain AI to transcribe and linguistically review Uzbek video content: timestamp dialogue, annotate emotion and tone, and provide grammatical and idiomatic feedback. Part-time contractor role (min 15 hrs/week, under 20), paid $45–$95/hour, remote worldwide.
Posted Jun 30, 2026
Contractor role reviewing Spanish (Spain) audio transcriptions and adding linguistic annotations — 20+ hours/week, paid $10–$20/hour. Join OpenTrain to help improve AI language models with precise, independent annotation work.
Posted Jun 30, 2026
Join OpenTrain AI to refine machine-generated Spanish (Mexico) transcriptions, add metadata, and flag cultural nuances for AI training datasets. Remote, entry-level contract work paying $10–$20 USD/hour with a typical commitment of 20+ hours/week.
Posted Jun 30, 2026
Join OpenTrain AI to transcribe and annotate Romanized Hindi audio and text, correct machine transcripts, and add metadata; remote contract work at $8–$16 USD/hr with a 20+ hour weekly commitment. Ideal for detail-oriented transcribers fluent in Romanized Hindi.
Posted Jun 30, 2026
Join OpenTrain AI to build and optimize Panda3D-based 3D simulations that train machine learning models; contract, remote work at 20+ hrs/week with pay between $50–$120 USD/hour. You'll code in Python and C++, collaborate via GitHub, and document technical designs.
Posted Jun 30, 2026
Seeking a remote Physics PhD to create, review, and evaluate advanced physics problem sets and model outputs for AI training; part-time contract (~20 hrs/week) paying $80–$90/hr for 1–3 months. Work focuses on text tasks: question answering, text generation, and evaluation.
Posted Jun 30, 2026
Apply your PhD engineering expertise to write authoritative responses, design experiments, and analyze results for AI training; remote, part-time contract at $80–$90/hr for 20+ hours/week. English required; worldwide applicants welcome.
Posted Jun 30, 2026
Join OpenTrain as a remote contractor reviewing Node.js, JavaScript, and TypeScript code to create high-quality training data for AI systems; part-time (≈20 hrs/week) for 1–3 months, paid $30–$90/hr. Bring strong backend experience and clear technical communication.
Posted Jun 30, 2026
Join OpenTrain to transcribe and annotate Myanmar–English video data with precise timestamps, cultural insight, and linguistic analysis. Flexible part-time contractor work (20+ hrs/week) paying $45–$95/hr for high-quality bilingual reviewers.
Posted Jun 30, 2026
Join OpenTrain to apply your military operations, targeting, and international humanitarian law expertise to evaluate AI model outputs and design policy-relevant evaluation tools; remote contract work, 20+ hrs/week, $50–$90/hour. Help shape responsible AI behavior in defense and humanitarian context
Posted Jun 30, 2026
Join OpenTrain to help design taxonomies, rubrics, and benchmarks for detecting self-harm, eating disorders, and suicide risk in AI systems; remote, contractor role (20+ hrs/week) paying USD $50–$90/hr, English required.
Posted Jun 30, 2026
OpenTrain is hiring a PhD-level mathematician to review, create, and evaluate advanced mathematical content for AI training—remote, contract role at 20+ hrs/week, paid $60–$90/hr. Help build rigorous math datasets, write problems and proofs, and shape how models learn.
Posted Jun 30, 2026
Join OpenTrain as a remote Marketing Strategy PowerPoint Consultant to craft executive-level narratives and high-impact slides from research and data. Contractor role, 20+ hours/week, paid $30–$55/hr; English required, open to applicants worldwide.
Posted Jun 30, 2026
Join OpenTrain to create and evaluate realistic enterprise marketing prompts, campaign plans, and stakeholder materials that teach AI systems how marketing teams work; up to $40/hr, 20+ hours/week, remote and contract. Ideal for experienced marketing ops and business writers who enjoy prompt design
Posted Jun 30, 2026
Create, edit, and evaluate Portuguese marketing presentations, reports, and spreadsheets to support AI training. Part-time contractor role (20+ hrs/week), worldwide, native Portuguese required — earn up to $55/hr.
Posted Jun 30, 2026
Join OpenTrain to create, translate, and evaluate Japanese marketing documents for AI training—remote contractor, part-time (20+ hrs/week) with pay from $30–$70/hr. Native Japanese and 3+ years of marketing experience required.
Posted Jun 30, 2026
Join OpenTrain as a part-time contractor producing and reviewing French marketing documents, presentations, and spreadsheets — remote, 20+ hours/week, paid hourly (USD $10–$55/hr). Use your marketing experience and native French skills to help train next-generation AI.
Posted Jun 30, 2026
Join OpenTrain AI as a remote, bilingual Marketing Documents Specialist to create and review Chinese–English marketing materials for AI training; part-time contractor work at $10–$55/hr with a 20+ hour weekly expectation. Bring marketing experience, native Chinese, and strong Office skills.
Posted Jun 30, 2026
Review marketing and sales decks, build rubrics, analyze campaign and dashboard data, and help train AI business tools in a contract role paying $50–$60/hr for 20+ hours/week. Join OpenTrain to grow a flexible freelance career shaping how commercial AI behaves.
Posted Jun 30, 2026
Join OpenTrain as a part-time, remote Mandarin–English translation specialist helping train AI with high-quality business translations, localization, and proofreading. Flexible contract work under 20 hours/week with pay ranging $45–$95 USD/hour.
Posted Jun 30, 2026
Remote contractor role developing strategic recommendations, executive presentations, financial models, and scoring rubrics used to train AI; $50–70/hr, 20+ hrs/week. Join OpenTrain to apply consulting experience to real business documents and help shape model behavior.
Posted Jun 30, 2026
AI training work helps prepare and review examples used by artificial-intelligence systems. Depending on the individual role, that 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 Slovakia, the relevant posting determines which tasks apply and what the work requires.
OpenTrain is the hiring organization for these public roles, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. The individual posting provides the role-specific information, including eligibility and other requirements, so review it before applying.
