https://aitrainers.jobs/ai-training-jobs/country/ptRemote AI training work you can do from Portugal: roles that accept residents of Portugal, plus roles open worldwide. Most are paid hourly in US dollars.en Tue, 03 Nov 2026 04:06:42 GMT https://aitrainers.jobs/jobs/brazilian-portuguese-audio-transcriptionist-ai-training-1qzy3jhttps://aitrainers.jobs/jobs/brazilian-portuguese-audio-transcriptionist-ai-training-1qzy3jThu, 29 Oct 2026 00:00:02 GMTTranscribe spoken Brazilian Portuguese verbatim, separating speakers and handling filled pauses and informal speech under a style guide. Suits native Brazilian Portuguese speakers with quick typing and sharp listening skills who want independent, self-scheduled work. https://aitrainers.jobs/jobs/brazilian-portuguese-audio-transcript-editor-ai-training-qx8oufhttps://aitrainers.jobs/jobs/brazilian-portuguese-audio-transcript-editor-ai-training-qx8oufThu, 29 Oct 2026 00:00:02 GMTReview and correct Brazilian Portuguese audio transcripts for word accuracy, punctuation and timing against recordings. Suits native or near-native Brazilian Portuguese speakers in Lisbon or elsewhere in Portugal who are detail-focused and comfortable working alone. https://aitrainers.jobs/jobs/voice-talent-required-portuguese-female-remote-dynd69https://aitrainers.jobs/jobs/voice-talent-required-portuguese-female-remote-dynd69Fri, 09 Oct 2026 15:31:08 GMTRecords natural, mature-sounding Portuguese female voice samples for conversational AI and text-to-speech training. Suits native speakers with voice acting or narration experience and a home recording setup. https://aitrainers.jobs/jobs/quality-control-specialist-for-ai-ml-with-portuguese-language-y6umawhttps://aitrainers.jobs/jobs/quality-control-specialist-for-ai-ml-with-portuguese-language-y6umawWed, 23 Sep 2026 11:57:55 GMTReviews finished speech transcripts for accuracy, punctuation, capitalization and number formatting against project guidelines. Suits detail-focused native speakers with strong written skills who can work independently to deadlines. https://aitrainers.jobs/jobs/audio-transcription-specialist-portuguese-language-6xmwmuhttps://aitrainers.jobs/jobs/audio-transcription-specialist-portuguese-language-6xmwmuWed, 23 Sep 2026 10:44:18 GMTListens to recorded Portuguese conversations and transcribes them accurately to project guidelines, correcting errors where needed. Suits people with strong Portuguese listening and typing skills and B2-level English who can meet deadlines. https://aitrainers.jobs/jobs/portuguese-speaking-json-coding-experts-for-audio-evaluations-1kob1vhttps://aitrainers.jobs/jobs/portuguese-speaking-json-coding-experts-for-audio-evaluations-1kob1vFri, 18 Sep 2026 17:22:49 GMTJudge live spoken conversations with AI systems, scoring voice responses and JSON-formatted output against written rubrics. Suits Brazilian Portuguese speakers with strong JSON and coding skills who can speak naturally and judge quality. https://aitrainers.jobs/jobs/audiobook-qa-expert-portuguese-portugal-1sepy0https://aitrainers.jobs/jobs/audiobook-qa-expert-portuguese-portugal-1sepy0Mon, 14 Sep 2026 21:03:53 GMTNative European Portuguese speakers who listen to audiobooks regularly log errors in AI-narrated audiobooks, including misread numbers and awkward intonation. Suits detail-minded listeners who can sustain long review sessions. https://aitrainers.jobs/jobs/chemistry-expert-portugal-yede17https://aitrainers.jobs/jobs/chemistry-expert-portugal-yede17Thu, 06 Aug 2026 11:34:48 GMTPart-time remote work building chemistry challenges that require computational rigour and documented solutions. Suits chemists with a graduate degree and research or industry modelling experience. https://aitrainers.jobs/jobs/biology-expert-ai-trainer-portugal-117vorhttps://aitrainers.jobs/jobs/biology-expert-ai-trainer-portugal-117vorTue, 04 Aug 2026 13:14:06 GMTRemote part-time work writing deterministic biology challenges with one correct answer for AI model evaluation. Suits life scientists with a graduate degree and an interest in computational analysis. https://aitrainers.jobs/jobs/ai-evaluation-annotation-reviewer-l3-advanced-level-portuguese-rtl2h7https://aitrainers.jobs/jobs/ai-evaluation-annotation-reviewer-l3-advanced-level-portuguese-rtl2h7Thu, 23 Jul 2026 00:00:00 GMTReviews AI-generated Portuguese responses for accuracy and clarity, and annotates language data to detailed guidelines. Suits fluent Portuguese speakers with a linguistics, translation or QA background who can commit to six months. https://aitrainers.jobs/jobs/quality-assurance-rater-1n8ykzhttps://aitrainers.jobs/jobs/quality-assurance-rater-1n8ykzFri, 26 Jun 2026 10:40:07 GMTRates search results and AI-generated responses for quality, usefulness and accuracy, then documents gaps in the guidelines. Suits senior Brazilian raters who write well in Portuguese and English and verify claims with strong web research. https://aitrainers.jobs/jobs/mathematics-expert-portugal-1gt79ghttps://aitrainers.jobs/jobs/mathematics-expert-portugal-1gt79gFri, 19 Jun 2026 21:11:48 GMTRemote contract work designing rigorous, single-answer math problems with complete solutions to test and train frontier AI reasoning. Suits mathematicians with advanced degrees who write precisely and enjoy building original problems. https://aitrainers.jobs/jobs/physics-expert-ai-trainer-portugal-17jdr9https://aitrainers.jobs/jobs/physics-expert-ai-trainer-portugal-17jdr9Thu, 18 Jun 2026 21:51:30 GMTRemote contract work designing rigorous, single-answer physics problems with complete worked solutions for AI training. Suits physicists with research or industry experience who write precisely and enjoy building original multi-step problems. https://aitrainers.jobs/jobs/start-up-ceo-ai-trainer-freelance-8-20-hrs-week-remote-1119mshttps://aitrainers.jobs/jobs/start-up-ceo-ai-trainer-freelance-8-20-hrs-week-remote-1119msThu, 28 May 2026 08:47:07 GMTStart-up leaders assess AI-generated material on fundraising, team building and early growth decisions, and write realistic venture scenarios. It suits experienced founders who give structured critical feedback. https://aitrainers.jobs/jobs/lean-six-sigma-black-belt-expert-ai-trainer-freelance-8-20-hrs-week-re-2osmimhttps://aitrainers.jobs/jobs/lean-six-sigma-black-belt-expert-ai-trainer-freelance-8-20-hrs-week-re-2osmimThu, 28 May 2026 08:42:52 GMTReviews AI-generated Lean and Six Sigma content, covering process improvement and root cause analysis, and writes realistic improvement scenarios. It suits black belt practitioners in the EU or UK with hands-on process experience. https://aitrainers.jobs/jobs/project-manager-ai-trainer-freelance-8-20-hrs-week-remote-1gsmf2https://aitrainers.jobs/jobs/project-manager-ai-trainer-freelance-8-20-hrs-week-remote-1gsmf2Thu, 28 May 2026 08:47:26 GMTReviews AI-generated project management frameworks, plans and risk assessments, and writes realistic delivery scenarios. It suits senior project managers in the EU or UK who can give structured feedback independently. https://aitrainers.jobs/jobs/principal-software-engineer-ai-trainer-freelance-8-20hrs-week-remote-119f3jhttps://aitrainers.jobs/jobs/principal-software-engineer-ai-trainer-freelance-8-20hrs-week-remote-119f3jTue, 26 May 2026 08:29:38 GMTPrincipal engineers review AI-generated code, architecture and engineering practice, and draft realistic technical scenarios. It suits senior software engineers with technical leadership experience who give structured feedback. https://aitrainers.jobs/jobs/expert-audio-transcriber-portuguese-european-19zjtzhttps://aitrainers.jobs/jobs/expert-audio-transcriber-portuguese-european-19zjtzThu, 14 May 2026 15:55:29 GMTTranscribe European Portuguese audio into accurate, time-aligned text that follows a project style guide. Suits native speakers with strong orthography and transcription or linguistic annotation experience. https://aitrainers.jobs/jobs/language-data-quality-reviewer-for-swedish-transcriptionist-freelance-j4qnk3https://aitrainers.jobs/jobs/language-data-quality-reviewer-for-swedish-transcriptionist-freelance-j4qnk3Mon, 11 May 2026 00:00:00 GMTFreelance, task-based Swedish language data review covering labeling, transcription and translation. Suits Swedish-English speakers with a data, QA or technology background who can handle sporadic work. https://aitrainers.jobs/jobs/full-stack-developer-ai-trainer-portugal-1nyq1nhttps://aitrainers.jobs/jobs/full-stack-developer-ai-trainer-portugal-1nyq1nMon, 04 May 2026 21:06:26 GMTRemote project-based work creating coding tasks, reference solutions and tests to train AI models. Suits experienced software engineers who can debug large codebases and give structured peer feedback. https://aitrainers.jobs/jobs/portuguese-transcriber-9mlxu9https://aitrainers.jobs/jobs/portuguese-transcriber-9mlxu9Mon, 13 Apr 2026 15:12:11 GMTTranscribe Portuguese audio recordings into accurate text and tag segments for AI training datasets. Suits fluent speakers who are careful with detail and can work to written guidelines. https://aitrainers.jobs/jobs/language-alignment-resource-partner-portuguese-freelance-ai-trainer-pr-11e8krhttps://aitrainers.jobs/jobs/language-alignment-resource-partner-portuguese-freelance-ai-trainer-pr-11e8krSun, 05 Apr 2026 19:58:23 GMTFreelance QA role for native Portuguese speakers to review AI-generated text for grammar, naturalness and cultural fit. It suits linguists or educators with prior annotation experience who can turn quality trends into clear guidance. https://aitrainers.jobs/jobs/project-lion-senior-prompt-engineer-portugal-remote-part-time-1n944khttps://aitrainers.jobs/jobs/project-lion-senior-prompt-engineer-portugal-remote-part-time-1n944kMon, 16 Mar 2026 07:32:37 GMTDesigns, tests and refines prompts for LLM autoraters, measuring them against gold data and human ratings. Suits senior prompt engineers based in Portugal with four or more years of LLM work and fluent English. https://aitrainers.jobs/jobs/nortenho-dialect-specialist-freelance-ai-trainer-project-qb5vywhttps://aitrainers.jobs/jobs/nortenho-dialect-specialist-freelance-ai-trainer-project-qb5vywFri, 13 Mar 2026 21:23:36 GMTFreelance role for Nortenho speakers to test AI models on grammar and dialect questions and document failure modes. It suits people with native fluency and teaching, translation or community linguistics experience who explain their reasoning clearly. https://aitrainers.jobs/jobs/alentejano-dialect-specialist-freelance-ai-trainer-project-21lsl4https://aitrainers.jobs/jobs/alentejano-dialect-specialist-freelance-ai-trainer-project-21lsl4Fri, 13 Mar 2026 21:20:02 GMTRemote evaluation of AI output in the Alentejano dialect of Portuguese, checking grammar, morphology and register with written error notes. Suits native speakers with linguistics, teaching or community language experience. https://aitrainers.jobs/jobs/ai-speech-tester-portuguese-native-speaker-gp8jn5https://aitrainers.jobs/jobs/ai-speech-tester-portuguese-native-speaker-gp8jn5Mon, 09 Mar 2026 12:40:04 GMTJoins a paired, unscripted and recorded conversation in Portuguese on a suggested general-interest topic, guided by a moderator. Suits native Portuguese speakers who can attend a full session in person. https://aitrainers.jobs/jobs/portuguese-language-expert-rtdjqyhttps://aitrainers.jobs/jobs/portuguese-language-expert-rtdjqyTue, 03 Mar 2026 20:10:35 GMTAlignerr · 3 countries · $20–40/hr https://aitrainers.jobs/jobs/portuguese-localization-specialist-1itseghttps://aitrainers.jobs/jobs/portuguese-localization-specialist-1itsegTue, 03 Mar 2026 20:10:35 GMTAlignerr · 3 countries · $20–40/hr https://aitrainers.jobs/jobs/ai-language-expert-french-1vel5phttps://aitrainers.jobs/jobs/ai-language-expert-french-1vel5pTue, 03 Mar 2026 20:10:35 GMTRemote, asynchronous contract for native French speakers who teach or assess learners. Work involves checking AI-generated French for accuracy and naturalness and giving structured feedback on learner errors. https://aitrainers.jobs/jobs/ai-language-expert-portuguese-1by49mhttps://aitrainers.jobs/jobs/ai-language-expert-portuguese-1by49mTue, 03 Mar 2026 20:10:35 GMTRemote asynchronous contract for native Portuguese speakers with language-teaching or assessment experience. You evaluate AI Portuguese text and speech and give actionable feedback on learner errors. https://aitrainers.jobs/jobs/science-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer--qh547khttps://aitrainers.jobs/jobs/science-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer--qh547kMon, 16 Jun 2025 20:52:53 GMTEuropean Portuguese science specialists test an AI model on physical, earth and environmental science, recording each factual or logical error. Suits science graduates with teaching, research or science-communication experience who write fluently in European Portuguese. https://aitrainers.jobs/jobs/coding-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer-p-cuvofihttps://aitrainers.jobs/jobs/coding-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer-p-cuvofiSat, 14 Jun 2025 01:37:52 GMTTest an AI model's software engineering answers in European Portuguese, verifying logic and recording reproducible errors. Suits programmers who write fluent European Portuguese and can explain why an answer fails. https://aitrainers.jobs/jobs/stem-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer-pro-on75llhttps://aitrainers.jobs/jobs/stem-specialist-fluent-in-portuguese-portugal-freelance-ai-trainer-pro-on75llSat, 14 Jun 2025 01:37:48 GMTEuropean Portuguese-fluent STEM specialists test a model on maths, physics and engineering problems and log each reasoning error. It suits STEM graduates who can explain their working step by step in European Portuguese. https://aitrainers.jobs/jobs/mathematics-specialist-fluent-in-portuguese-portugal-freelance-ai-trai-kz3uxchttps://aitrainers.jobs/jobs/mathematics-specialist-fluent-in-portuguese-portugal-freelance-ai-trai-kz3uxcSat, 14 Jun 2025 01:37:41 GMTFreelance role for mathematics experts fluent in Portuguese to test AI models on math questions and proofs and document failure modes. It suits people with publications, teaching or research experience in mathematics who explain their reasoning clearly. https://aitrainers.jobs/jobs/portuguese-language-specialist-portugal-freelance-ai-trainer-project-1k1cd6https://aitrainers.jobs/jobs/portuguese-language-specialist-portugal-freelance-ai-trainer-project-1k1cd6Thu, 12 Jun 2025 23:40:56 GMTEuropean Portuguese specialists test an AI model on grammar, agreement and colloquial usage, documenting each failure for the engineering team. Suits linguists or language researchers with graduate training or analysis experience in European Portuguese. https://aitrainers.jobs/jobs/search-engine-evaluator-portuguese-portugal-f8wgiahttps://aitrainers.jobs/jobs/search-engine-evaluator-portuguese-portugal-f8wgiaMon, 14 Oct 2024 14:37:36 GMTSearch quality raters test how search engines answer everyday queries and grade results for relevance and quality. Suits web-savvy, detail-oriented people who know local popular culture and can work flexible hours from home. https://aitrainers.jobs/jobs/finance-expert-ai-training-evaluation-1jtstehttps://aitrainers.jobs/jobs/finance-expert-ai-training-evaluation-1jtsteMon, 02 Nov 2026 12:33:20 GMTRise Data Labs · Worldwide · $50–100/hr https://aitrainers.jobs/jobs/finance-research-expert-1qdz6thttps://aitrainers.jobs/jobs/finance-research-expert-1qdz6tMon, 02 Nov 2026 16:19:38 GMTJT AI Labs · 15 countries · $30–85/hr https://aitrainers.jobs/jobs/finance-research-expert-9s96gmhttps://aitrainers.jobs/jobs/finance-research-expert-9s96gmMon, 02 Nov 2026 00:00:00 GMTmicro1 · Worldwide · $30–85/hr https://aitrainers.jobs/jobs/materials-science-expert-qpynthhttps://aitrainers.jobs/jobs/materials-science-expert-qpynthSat, 31 Oct 2026 02:23:14 GMTRemote expert work building hard materials science problems, writing correct solutions and checking other experts' work. Suits principal-level researchers or faculty with advanced degrees in the field. https://aitrainers.jobs/jobs/manufacturing-industrial-engineering-expert-1tldd5https://aitrainers.jobs/jobs/manufacturing-industrial-engineering-expert-1tldd5Sat, 31 Oct 2026 02:14:09 GMTRemote expert work designing difficult industrial engineering problems, providing worked solutions and reviewing peers' problems. Suits senior manufacturing engineers or faculty with advanced degrees. https://aitrainers.jobs/jobs/semiconductor-engineering-expert-yd725dhttps://aitrainers.jobs/jobs/semiconductor-engineering-expert-yd725dSat, 31 Oct 2026 02:04:53 GMTRemote expert work writing hard semiconductor engineering problems with verified solutions and reviewing other contributors' questions. Suits principal-level chip engineers or faculty with advanced degrees. https://aitrainers.jobs/jobs/aerospace-engineering-expert-x5s729https://aitrainers.jobs/jobs/aerospace-engineering-expert-x5s729Sat, 31 Oct 2026 02:01:02 GMTRemote expert work designing aerospace problems with realistic constraints, writing correct solutions and reviewing other contributors' work. Suits principal-level aerospace engineers or faculty with advanced degrees. https://aitrainers.jobs/jobs/legal-paralegal-expert-ai-training-evaluation-gdxyx3https://aitrainers.jobs/jobs/legal-paralegal-expert-ai-training-evaluation-gdxyx3Sat, 31 Oct 2026 20:35:15 GMTWrites legal scenarios, reference answers and assessment criteria for AI training tasks, grounded in professional legal work. Suits paralegals, legal researchers and attorneys who can explain their analysis clearly in writing. https://aitrainers.jobs/jobs/healthcare-expert-ai-training-evaluation-1k9xoxhttps://aitrainers.jobs/jobs/healthcare-expert-ai-training-evaluation-1k9xoxSat, 31 Oct 2026 20:35:06 GMTCreates healthcare scenarios, questions and evidence-based reference answers for AI training tasks. Suits clinicians, pharmacists and other healthcare professionals who can explain their reasoning clearly in writing. https://aitrainers.jobs/jobs/remote-python-senior-software-engineer-ai-training-1plri6https://aitrainers.jobs/jobs/remote-python-senior-software-engineer-ai-training-1plri6Fri, 30 Oct 2026 17:24:47 GMTRemote work judging how AI coding agents reason and respond during real engineering tasks, with written and recorded feedback. Suits senior or staff software engineers with strong taste for good engineering practice. https://aitrainers.jobs/jobs/paraview-specialist-scientific-visualization-104ksxhttps://aitrainers.jobs/jobs/paraview-specialist-scientific-visualization-104ksxFri, 30 Oct 2026 06:35:55 GMTContractors use ParaView to visualise simulation and engineering data, then document each step so AI systems learn technical analysis. Suits engineers with hands-on ParaView and simulation experience. https://aitrainers.jobs/jobs/catia-specialist-cad-engineering-16o5vdhttps://aitrainers.jobs/jobs/catia-specialist-cad-engineering-16o5vdFri, 30 Oct 2026 06:28:29 GMTContractors build and edit 3D CAD parts in CATIA, then explain each design step to help AI systems learn engineering workflows. Suits mechanical or aerospace engineers with hands-on CATIA experience. https://aitrainers.jobs/jobs/vectorworks-specialist-architecture-rgnn69https://aitrainers.jobs/jobs/vectorworks-specialist-architecture-rgnn69Fri, 30 Oct 2026 06:23:58 GMTContractors produce architectural drawings and building models in Vectorworks and document their workflow for AI training. Suits architects and BIM practitioners with hands-on Vectorworks experience. https://aitrainers.jobs/jobs/solvespace-specialist-cad-prvu7vhttps://aitrainers.jobs/jobs/solvespace-specialist-cad-prvu7vFri, 30 Oct 2026 06:19:07 GMTContractors build parametric 2D and 3D CAD models in SolveSpace and explain each step for AI training. Suits engineers or product designers with hands-on SolveSpace experience.