Curated remote opportunities

Remote AI & Data Training Jobs in Brazil 2026

1956 remote jobs open to candidates in Brazil in AI & Data Training. Updated daily.

Alignerr
AI Expert - Physics Contractor
AI Physics Training +12 Mechanics Electromagnetism Flexible Organization Thermodynamics Reasoning Accuracy Institutions Problem Solving English Annotation Research
  • Brazil
  • $35-55/hr
  • Jun 15, 2026

We're looking for physics experts in São Paulo and across Brazil to help train and evaluate cutting-edge AI models. Your deep understanding of physics will directly shape how AI reasons through complex problems — from undergraduate mechanics to graduate-level electromagnetism…

Alignerr
AI Expert - Legal Contractor
AI Training Compliance +12 Organization Accuracy Nuance Communication Spanish English Research Operations Paralegal Flexible Government Policy AI Training
  • Remote (Global)
  • $20-40/hr
  • Jun 15, 2026

AI is increasingly being used to navigate some of the most complex and high-stakes domains in the world — law, government policy, and regulatory compliance. But getting it right requires human expertise.

Alignerr
AI Mathematics Flexible +12 Logic Research Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathematician – Formalization & AI Foundations (Remote Contract) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Alignerr
AI Mathematics Flexible +12 Logic Research Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathematician – Formal Proof & AI Foundations (Remote Contract) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Alignerr
Mathematics AI Flexible +12 Logic Research Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathématicien(ne) – Formalisation & Fondements de l'IA (Contrat à distance) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Alignerr
AI Research Mathematics +12 Flexible Logic Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathematician – Proof Formalization & AI Research (Remote Contract) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Alignerr
AI Mathematics Flexible +12 Logic Research Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathematician – Formal Systems & AI Foundations (Remote Contract) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Alignerr
AI Research Mathematics +12 Flexible Logic Organization mathlib Reasoning Audit Writing Verification Annotation Training Topology Algebra
  • Remote (Global)
  • $170-200/hr
  • Jun 15, 2026

Mathematician – Foundations & Formalization (AI Research Contract) About the Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think?

Meridial AI
Audio Annotation Contractor ↘ +145 regions
French Japanese Pronunciation +5 Nuance Accuracy Alignment Audio Evaluation Cultural Nuance
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $20/hr
  • Jun 15, 2026

We are looking for independent contractors with native-level French fluency and strong familiarity with Japanese as used in Japan to support voice and audio evaluation work.

Welo Data
English Portuguese Translation +12 Localization Training Patents Proofreading Chemistry Consistency Linguistics Biology Copywriting Management Language Services Machine Learning
  • Brazil
  • $1/hr
  • Jun 15, 2026

As a trusted global transformation partner, Welocalize accelerates the global business journey by enabling brands and companies to reach, engage, and grow international audiences.

Meridial AI
LLM Evaluator (Code) Contractor ↘ +145 regions
JSON Sourcing Accuracy +12 Alignment Italian Pronunciation Formatting Logic Syntax AI LLMs Automation Scripting Customer Support Following Detailed Guidelines
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $25/hr
  • Jun 12, 2026

We are sourcing independent contractors to help review AI-generated coding and technical customer service outputs for accuracy, clarity, and guideline alignment.

Meridial AI
LLM Evaluator (Code) Contractor ↘ +145 regions
JSON Sourcing Accuracy +12 Alignment Dutch Pronunciation Formatting Logic Syntax AI LLMs Automation Scripting Customer Support Following Detailed Guidelines
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $25/hr
  • Jun 12, 2026

We are sourcing independent contractors to help review AI-generated coding and technical customer service outputs for accuracy, clarity, and guideline alignment.

Meridial AI
LLM Evaluator (Code) Contractor ↘ +145 regions
JSON Sourcing Accuracy +11 Alignment Pronunciation Formatting Logic Syntax AI LLMs Automation Scripting Customer Support Following Detailed Guidelines
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $25/hr
  • Jun 12, 2026

We are sourcing independent contractors to help review AI-generated coding and technical customer service outputs for accuracy, clarity, and guideline alignment.

Meridial AI
LLM Evaluator (Code) Contractor ↘ +145 regions
JSON Sourcing Accuracy +12 Alignment Portuguese Pronunciation Formatting Logic Syntax AI LLMs Automation Scripting Customer Support Brazilian Portuguese
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $25/hr
  • Jun 12, 2026

We are sourcing independent contractors to help review AI-generated coding and technical customer service outputs for accuracy, clarity, and guideline alignment.

Meridial AI
Audio Annotation Contractor ↘ +145 regions
Japanese Pronunciation Nuance +4 Accuracy Alignment Audio Evaluation Cultural Nuance
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $20/hr
  • Jun 12, 2026

We are looking for independent contractors with native-level Japanese fluency and strong familiarity with Japanese as used in Japan to support voice and audio evaluation work.

Meridial AI
LLM Evaluator (Code) Contractor ↘ +145 regions
JSON Sourcing Accuracy +12 Alignment German Pronunciation Formatting Logic Syntax AI LLMs Automation Scripting Customer Support Following Detailed Guidelines
  • United States, Albania, Algeria +142AndorraAntigua and BarbudaArgentinaAustraliaAustriaBahamasBahrainBangladeshBarbadosBelgiumBelizeBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaCameroonCanadaChileColombiaCosta RicaCroatiaCyprusDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEstoniaFijiFinlandGabonGambiaGhanaGreeceGrenadaGuyanaHondurasHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJamaicaJapanJordanKiribatiKuwaitLatviaLebanonLesothoLiberiaLiechtensteinLithuaniaLuxembourgMadagascarMalawiMalaysiaMaldivesMaltaMarshall IslandsMauritiusMexicoMicronesiaMonacoMontenegroNamibiaNauruNepalNetherlandsNew ZealandNicaraguaNorwayOmanPalauPanamaPapua New GuineaParaguayPeruPhilippinesPolandPortugalQatarRomaniaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSouth AfricaSouth KoreaSpainSurinameSwedenSwitzerlandTanzaniaThailandVatican CityTogoTongaTrinidad and TobagoTunisiaTurkeyTuvaluUgandaUnited Arab EmiratesUnited KingdomUruguayVanuatuVietnamZambiaBhutanBruneiFranceGuatemalaMoroccoNigeriaRwandaSaudi ArabiaCape VerdeIvory CoastKosovoPakistanTimor-LesteCzech RepublicNorth MacedoniaEswatini
  • $25/hr
  • Jun 12, 2026

We are sourcing independent contractors to help review AI-generated coding and technical customer service outputs for accuracy, clarity, and guideline alignment.

Alignerr
AI Training Strategic Thinking +12 Management Operations Finance Flexible Organization Labelbox Accuracy Reasoning Teaching Collaboration AI Training Business Management
  • Remote (Global)
  • $35-70/hr
  • Jun 11, 2026

We're looking for experienced postsecondary Business instructors to help shape the next generation of AI. Your classroom expertise will directly influence how AI systems understand and communicate core business concepts — from strategy and management to operations and finance.

Stay in the loop.

One email per week, 5 hand-picked roles.