Looking for remote AI training or data-labeling work while located in Estonia? OpenTrain is the hiring organization, candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. AI-training work can include tasks such as labeling images or video, transcribing audio, evaluating model outputs, or translating text; inspect each posting to learn what the role requires.
Join OpenTrain as a Punjabi AI Response Evaluator to review Punjabi AI-generated answers for factual accuracy, reasoning, tone, and completeness—work remotely, part-time (20+ hrs/week) on pay-per-hour contracts at $15–$20/hr. Native Punjabi and strong English writing required.
Posted Jul 13, 2026
Join OpenTrain AI to evaluate Telugu AI-generated responses and write clear English assessment notes that improve model behavior; remote contract, 20+ hrs/week, $15–$20/hr. Ideal for native Telugu speakers with strong English writing and LLM experience.
Posted Jul 13, 2026
Evaluate Urdu AI-generated responses for factual accuracy, clarity, tone, and reasoning, and write clear English analyses that guide model improvement. Remote contractor role, 20+ hours/week, $15–$20 per hour.
Posted Jul 13, 2026
Join OpenTrain to evaluate Bengali AI-generated text for factual accuracy, clarity, tone, and reasoning, producing clear English-language feedback to improve model outputs. Part-time contractor role, 20+ hrs/week, paid $15–$20/hr, fully remote and open worldwide.
Posted Jul 13, 2026
Join OpenTrain AI to design scoring rubrics and evaluate AI-generated and human brand design work with evidence-based written critiques. Expert role, 20+ hrs/week, remote worldwide, paid $80–$150 USD/hr.
Posted Jul 13, 2026
Join OpenTrain to design rubrics and score AI-generated and human marketing deliverables—creative briefs, campaign concepts, brand frameworks, ad copy and presentations—remotely as a contractor. Flexible part-time work paying $80–$150/hr with a default 40 hr/week commitment.
Posted Jul 13, 2026
Join OpenTrain to evaluate AI and human accounting deliverables—score reconciliations, close packages, financial statements, and workpapers with defensible written rationales; remote contractor role, 20+ hrs/week, $130–$160/hr USD.
Posted Jul 13, 2026
Annotate robotic surgery video in Supervisely for a part-time, fully remote contractor role applying segmentation, bounding boxes, keypoints, and object tracking; strong attention to detail and medical familiarity required. Pay range $15–$32/hr (hourly rate listed $22/hr); expect ~20+ hrs/week.
Posted Jul 12, 2026
Join OpenTrain AI as a part-time contractor building reinforcement-learning environments that teach models to fix, refactor, and optimize real code; flexible remote work up to $150/hr, under 20 hours/week.
Posted Jul 12, 2026
Join OpenTrain as a remote Data Annotation Generalist working 20+ hours/week on English text classification projects; entry-level contributors with strong attention to detail and communication skills are encouraged to apply for $30–$80/hr (USD).
Posted Jul 11, 2026
Join OpenTrain AI as a Video Annotation AI Trainer to label short video clips for model training—work remotely 20+ hours/week and earn $40–$80 per hour while building a verifiable portfolio in a fast-growing field.
Posted Jul 11, 2026
Join OpenTrain to implement C++ checker solutions during a live competitive programming contest — $45–$65/hr, 20+ hrs/week, one-time live participation with estimated project earnings of $7,200–$10,400. Remote, contractor-friendly role for skilled C++ competitive programmers.
Posted Jul 11, 2026
Join OpenTrain AI as a remote Architect CAD and Construction Documentation Reviewer—work 20+ hrs/week creating and reviewing CAD drawings, GD&T callouts, electrical schematics, and PCB layouts to train next-generation AI; $40–$50/hr, worldwide, English required.
Posted Jul 11, 2026
Label short video clips for event classification and precise timestamping in a flexible, remote contractor role. Work 20+ hours/week with pay from $40–$80/hr, using strong attention to detail and English to produce high-quality training data.
Posted Jul 11, 2026
Build C++ checkers and test suites that validate complex competitive-programming submissions for next-generation AI training. Remote, contract role for strong competitive programmers who can design problems, write reference solutions, and document edge-case logic.
Posted Jul 11, 2026
Design RL environments that test AI models on original competitive programming problems by building C++ checkers, reference solutions, and robust test suites. Remote, part-time contractor role (20+ hrs/week) paying $45–$65/hr for English speakers worldwide.
Posted Jul 11, 2026
Join OpenTrain as a Video AI Training Specialist to analyze, annotate, and evaluate video data that helps shape next-gen AI. Remote, contract role paying $65–$80/hr for 20+ hours/week; no prior AI experience required if you have professional video production skills.
Posted Jul 11, 2026
Join OpenTrain AI to evaluate Gujarati model outputs for factual accuracy, reasoning, clarity, tone, and completeness. Remote, contractor role for native Gujarati speakers: 20+ hrs/week, $15–$20/hr, requires a bachelor's and solid LLM experience.
Posted Jul 10, 2026
Join OpenTrain as a Japanese Music AI Model Evaluator to review, score, and tag AI-generated music and lyrics; bilingual music producers and audio engineers can work remotely 20+ hours/week and earn up to $62.49/hr. Apply if you can write music in Japanese and follow English directions.
Posted Jul 10, 2026
OpenTrain AI is hiring a native Assamese evaluator to review AI-generated Assamese text for factual accuracy, clarity, reasoning, tone, and completeness. Remote contract, 20+ hrs/week, $15–$20/hr — strong English writing and LLM experience required.
Posted Jul 10, 2026
Join OpenTrain AI as a contract Kannada evaluator to rate and improve AI-generated Kannada responses, 20+ hrs/week remote, $15–$20/hr. Provide detailed, structured feedback that helps shape safer, more accurate language models.
Posted Jul 10, 2026
Join OpenTrain as a French Music Audio Evaluation Expert to rate and annotate AI-generated music in French — part-time contractor work under 20 hours/week, paid $30–$60.48/hr. Use your production and lyrical skills to shape next-generation music models.
Posted Jul 10, 2026
Join OpenTrain to review and rate Tamil AI-generated responses for factual accuracy, reasoning, tone, and completeness. Flexible contractor role (20+ hrs/week) paying up to $20/hr for native Tamil speakers with strong English writing and LLM experience.
Posted Jul 10, 2026
Evaluate Marathi AI-generated responses and write clear English evaluation notes to improve model outputs. Remote contract role, 20+ hrs/week, $15–$20 USD/hour — ideal for Marathi natives with LLM experience and strong analytical writing.
Posted Jul 10, 2026
OpenTrain AI is hiring a Malayalam-speaking evaluator to review AI-generated Malayalam responses for accuracy, reasoning, clarity, tone, and completeness, then write clear English assessments. Contract, remote, 20+ hrs/week, $15–$20/hr.
Posted Jul 10, 2026
Evaluate AI-generated Spanish (MX) music by rating musicality, lyrics, vocals, and production while annotating genre, song structure, and vocal/instrumental traits. Remote, part-time contract paying $13.01–$54/hr for up to 6 months with a 20+ hour weekly commitment.
Posted Jul 10, 2026
Evaluate Arabic AI-generated music—lyrics, vocals, musicality and mixes—working remotely part-time. Immediate start; pay $12–$44.25/hr for experienced Arabic-speaking music producers and audio engineers.
Posted Jul 10, 2026
Join OpenTrain AI to evaluate and annotate Indonesian-language AI-generated music and lyrics — part-time remote work, 20+ hrs/week, up to 6 months, pay $11.42–$20.55/hr. Use your music production and audio-engineering expertise to rate musicality, vocals, lyrics, and mixes.
Posted Jul 10, 2026
Create technically rigorous single-choice questions and answer rationales for mechanical engineering AI training. Remote contractor role, 20+ hrs/week, $50–70/hr (typical $70/hr); MS or PhD in Mechanical Engineering required.
Posted Jul 10, 2026
Join OpenTrain AI to design and review technical multiple-choice questions and rubrics that train and evaluate electrical-engineering models. Remote, asynchronous contractor work at $60–$80/hr for 20+ hours/week, focused on technical accuracy and pedagogical quality.
Posted Jul 10, 2026
Roles that explicitly accept applicants located in Estonia involve human review and preparation of examples used to train or evaluate AI systems. Depending on the individual posting, tasks can include annotating images or video, transcribing or labeling audio, rating or writing model responses, evaluating search results, translating text, or applying subject-matter knowledge to verify outputs. Each listing specifies the exact responsibilities, required languages, and any domain knowledge needed, so candidates should read postings closely to see whether the tasks match their skills and interests.
All applications for roles that accept applicants located in Estonia are handled through OpenTrain. OpenTrain is the hiring organization for the public roles on this site and may place or refer successful candidates to the client whose project they will support. Eligibility, hours, pay, and other hiring details are set by each posted role, so review the posting for the rules that apply to that opportunity.
