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.
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 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
Expert M&A attorney needed to redline contracts, perform simulated negotiations, and evaluate AI responses to improve contract-review models. Remote contractor role (OpenTrain AI), 20+ hrs/week, $80–$105/hr; requires J.D., active U.S. bar, and 2+ years M&A experience.
Posted Jun 30, 2026
Help train legal AI by reviewing contracts, interpreting regulations, and writing concise legal summaries for a remote contractor role. Entry-level friendly, 20+ hrs/week, paid $15–$25/hr, English required.
Posted Jun 30, 2026
Work remotely as a contract Korean–English transcription and translation specialist for AI training: time-stamped video transcriptions, faithful translations, and nuanced tone evaluation. Minimum 15 hours/week (typical projects 20+); pay USD $20–$65/hr.
Posted Jun 30, 2026
Remote contractor role reviewing Panda3D and Python game code for AI training—provide clear critiques, example fixes, and gameplay insights; 20+ hrs/week, pay up to $120/hr. Ideal for Python game devs comfortable with C++ engine integration and GitHub workflows.
Posted Jun 30, 2026
OpenTrain AI seeks an experienced Electronic Engineer with deep Qucs-S expertise to design, simulate, and validate circuits remotely (20+ hrs/week). Competitive hourly pay up to $120/hr; contractor, part-time role for skilled simulation engineers who document and mentor teammates.
Posted Jun 30, 2026
Join OpenTrain as a JavaScript Frontend Developer to build and optimize user-facing tools that power AI training workflows. Remote contract role, 20+ hours/week, pay $30–$90 USD/hour, focused on modern JavaScript, architecture, code quality, and mentoring.
Posted Jun 30, 2026
Join OpenTrain AI as a remote, part-time Javanese translation and localization contractor working under 20 hrs/week to translate, review, and QA written content. Pay range $45–$95/hr; bilingual Javanese/English fluency required.
Posted Jun 30, 2026
Join OpenTrain AI as a Java backend developer building Spring-based services that support next-generation AI training. This part-time contractor role is remote, requires 20+ hours/week, and pays $20–$50/hr.
Posted Jun 30, 2026
Join OpenTrain to transcribe and edit Japanese↔English audio and text in a flexible, remote contractor role (20+ hrs/week). Earn $30–$65/hr working on bilingual transcription and translation tasks that improve real AI systems.
Posted Jun 30, 2026
Join OpenTrain to create and refine Portuguese HR policies, contracts, and onboarding materials for AI training; contractor, part-time (20+ hrs/week) paid hourly up to $45 USD. Native-level Portuguese, a Bachelor's degree and 3+ years HR documentation experience required.
Posted Jun 30, 2026
Join OpenTrain as a remote contractor creating and reviewing bilingual HR policies and documents to train AI—ideal for HR professionals with native Korean and strong English. Part-time (20+ hrs/week) work paid $10–$55/hr.
Posted Jun 30, 2026
Create, review, and optimize German-language HR documents and SOPs for enterprise workflows in a remote contract role; requires native German, 3+ years HR document experience, and expert MS Word/Excel/PowerPoint. Part-time (20+ hrs/week), paid up to $45/hr.
Posted Jun 30, 2026
Join OpenTrain AI to help train models using Chinese HR materials: develop, translate, and review employee handbooks, policies, onboarding docs, spreadsheets, and presentations. Remote contractor role (20+ hrs/week), pay $10–$55/hr; native Chinese and strong English required.
Posted Jun 30, 2026
Contract remote role transcribing and annotating Hindi audio for AI systems—paid at $16/hr, 20+ hours/week. Edit machine transcripts, add metadata, and deliver accurate, confidential transcription assets for model training.
Posted Jun 30, 2026
OpenTrain AI is hiring a remote Go backend developer to build REST/GraphQL endpoints and run focused evaluations of alpha AI coding tools; part-time (<20 hrs/week), contract role paying $30–$90/hr. Ideal for experienced Go engineers who enjoy debugging and product QA.
Posted Jun 30, 2026
Part-time contractor role reviewing and grading AI-generated contract redlines for fund documents (LPAs, subscription agreements, side letters). Requires active U.S. bar and funds-department experience; pays $80–$105/hr and is under 20 hrs/week.
Posted Jun 30, 2026
Join OpenTrain as a remote French transcription and annotation contractor to improve machine-generated French transcripts; part-time (20+ hrs/week), hourly pay in USD ($10–$25/hr), worldwide, entry-level friendly. Bring French fluency and strong attention to detail.
Posted Jun 30, 2026
Remote contract role transcribing and annotating Canadian French audio: correct machine transcripts, add metadata and entity tags, and document edits. Entry-level, 20+ hrs/week, pay USD $15–25/hour, open worldwide.
Posted Jun 30, 2026
Join OpenTrain as a contractor to review, create, and refine Portuguese financial documents for AI training. Part-time (20+ hrs/week), remote work with pay up to $45/hr; strong finance background and native Portuguese required.
Posted Jun 30, 2026
Join OpenTrain as a Korean Financial Document Review Specialist to evaluate AI outputs and review financial reports, helping models learn from expert human feedback; part-time remote contractor work at $10–$55/hr, ~20 hrs/week for 1–3 months. Native Korean and finance skills required.
Posted Jun 30, 2026
Work remotely as a German Financial Document Specialist reviewing German financial reports, spreadsheets, and presentations to train AI—entry-level friendly, 20+ hrs/week, $10–$55/hr with estimated project earnings of $1,600–$8,800. Native German and finance experience required.
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.
