AI training jobs in Portuguese
There are 25 open AI training jobs that need Portuguese, from 6 platforms. Typical top rate: $40/hr. Half of the 25 listings that state an hourly rate offer that or more at the top of their range. They pay you to write, check and rate AI answers in Portuguese, usually alongside English.
$30–65/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
micro1 is engaging Portuguese Bilingual Experts (Brazil) to contribute to a customer's project focused on advancing AI-powered technologies and language understanding.
Score 42/100: pay 14.9/40, recency 11.4/20, payouts 7.5/15, steady work 2.5/10, who can apply 6/10. How we score
What they ask for
- Native-level proficiency in Portuguese, with clear enunciation and natural fluency.
- Minimum B2 level proficiency in English, especially for written and verbal communication.
- Background in voice specialization, linguistics, phonetics, music/audio engineering, or related fields is prefered.
Apply on micro1 for Portuguese Bilingual Expert (Brazil) on micro1 (opens in a new tab)
$50/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
Mercor is seeking experienced Portuguese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab.
Score 35/100: pay 11.4/40, recency 4.3/20, payouts 11.3/15, steady work 2.5/10, who can apply 6/10. How we score
What they ask for
- Native or near-native fluency in Portuguese, with excellent command over grammar, syntax, and stylistics.
Apply on Mercor for Portuguese Linguistic Experts on Mercor (opens in a new tab)
$10–35/hr
The job
Are you a Japanese speaker based in São Paulo or elsewhere in Brazil? What if your ear for Japanese could directly shape how AI listens to and understands one of the world's most complex languages?
Score 25/100: pay 5.1/40, recency 4.3/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native fluency in Japanese with excellent listening comprehension
- Strong command of Japanese writing systems — kanji, hiragana, and katakana
- Naturally detail-oriented with a patient, methodical approach to repetitive tasks
Apply on Alignerr for Especialista em Transcrição de Áudio Japonês on Alignerr (opens in a new tab)
$35–55/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
We're looking for physics experts in São Paulo and across Brazil to help train and evaluate cutting-edge AI models.
Score 28/100: pay 12.6/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Currently pursuing or have completed a Masters degree in Physics, Applied Physics, or a closely related field — from USP, UNICAMP, UFRJ, or equivalent institutions
- Strong physics reasoning and problem-solving skills across multiple advanced domains
- Able to communicate complex concepts clearly and concisely in written English
$20–100/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
E se o código que você escreve pudesse alimentar diretamente os sistemas de IA que moldam como milhões de pessoas interagem com a tecnologia?
Score 29/100: pay 13.7/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Proficient in one or more back end languages — Python, Go, Java, Node.js, Rust, or similar
- Solid understanding of RESTful API design, microservices architecture, and distributed systems
- Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.)
Apply on Alignerr for Desenvolvedor Back End (Infraestrutura de IA) on Alignerr (opens in a new tab)
$20–100/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
E se o código que você escreve pudesse moldar diretamente como a próxima geração de IA entende e gera software?
Score 29/100: pay 13.7/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
$20–100/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
What if the code you write could directly shape how the next generation of AI understands and generates software?
Score 29/100: pay 13.7/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Proficient in one or more programming languages (Python, JavaScript, Java, C++, Go, TypeScript, or similar)
- Solid understanding of data structures, algorithms, and software design principles
- Able to read, write, and reason about code with clarity and precision
Apply on Alignerr for Engenheiro(a) de Software (Treinamento de IA) on Alignerr (opens in a new tab)
$10–35/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
What if your sharp ears and precision with language could directly improve how AI understands spoken Portuguese?
Score 21/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native Brazilian Portuguese speaker with an excellent command of written Portuguese
- Strong listening skills — you can parse spoken language accurately, even when audio quality varies
- Exceptionally detail-oriented with a patient, methodical approach to work
$10–35/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
What if your sharp ears and precision with language could directly improve how AI understands spoken Portuguese?
Score 21/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native Brazilian Portuguese speaker with an excellent command of written Portuguese
- Strong listening skills — you can parse spoken language accurately, even when audio quality varies
- Exceptionally detail-oriented with a patient, methodical approach to work
$10–35/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
What if your sharp ears and precision with language could directly improve how AI understands spoken Portuguese?
Score 21/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native Brazilian Portuguese speaker with an excellent command of written Portuguese
- Strong listening skills — you can parse spoken language accurately, even when audio quality varies
- Exceptionally detail-oriented with a patient, methodical approach to work
$10–35/hr
Apply for Brazilian Portuguese Audio Transcriptionist (AI Training) on Alignerr (opens in a new tab)Expert level: most of these want a degree, a licence or years of work in the field.
The job
What if your native ear for spoken Brazilian Portuguese could directly shape how AI understands one of the world's most widely spoken languages?
Score 21/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native Brazilian Portuguese speaker with an instinctive ear for natural speech patterns, regional accents, and colloquial expressions
- Exceptional listening skills — you catch the words others miss
- Detail-oriented and methodical, with the patience to work through difficult audio
$20–30/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
Overview We're looking for audio engineers with strong experience editing and quality-checking voice recordings for speech and text-to-speech (TTS) applications , specifically for Brazilian Portuguese-language audio .
Score 27/100: pay 6.9/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 6/10. How we score
What they ask for
- Native or near-native Brazilian Portuguese speaker with strong listening intuition for Brazilian Portuguese speech nuances
$15–20/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
Help make the next generation of AI-narrated audiobooks sound genuinely human.
Score 20/100: pay 4.6/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native fluency in European Portuguese, and an active, genuine audiobook listener — someone who listens regularly and has real opinions about what makes a good…
- Enough working English to report clearly and communicate with the team (you do not need to be bilingual).
- Some experience with annotation, labeling, transcription, proofreading, linguistics, or other detail-oriented review work.
Apply on Mercor for Audiobook QA Expert – Portuguese (Portugal) on Mercor (opens in a new tab)
$15–20/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
Help make the next generation of AI-narrated audiobooks sound genuinely human.
Score 20/100: pay 4.6/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native fluency in Brazilian Portuguese, and an active, genuine audiobook listener — someone who listens regularly and has real opinions about what makes a good…
- Enough working English to report clearly and communicate with the team (you do not need to be bilingual).
- Some experience with annotation, labeling, transcription, proofreading, linguistics, or other detail-oriented review work.
Apply on Mercor for Audiobook QA Expert – Portuguese (Brazil) on Mercor (opens in a new tab)
$40–44/hr
still listed todayThe job
We're hiring proficient bilingual speakers (English & Portuguese) to help make advanced AI models safer.
Score 26/100: pay 10.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native fluency in Portuguese, plus business-level written English.
$10–35/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
What if your sharp ear for spoken Brazilian Portuguese could directly shape how AI understands and processes one of the world's most widely spoken languages?
Score 25/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 6/10. How we score
What they ask for
- Native Brazilian Portuguese speaker with an instinctive ear for natural speech patterns, regional accents, and colloquial expressions
- Exceptional listening skills — you catch the words others miss
- Detail-oriented and methodical, with the patience to work through difficult audio
Apply on Alignerr for Brazilian Portuguese – Audio Transcriptionist on Alignerr (opens in a new tab)
$10–35/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
What if your sharp ears and precision with language could directly improve how AI understands spoken Portuguese?
Score 25/100: pay 5.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 6/10. How we score
What they ask for
- Native Brazilian Portuguese speaker with an excellent command of written Portuguese
- Strong listening skills — you can parse spoken language accurately, even when audio quality varies
- Exceptionally detail-oriented with a patient, methodical approach to work
$6–65/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
We are sourcing independent Language Alignment & Resource Partners (LARPs) to provide native-level Brazilian Portuguese language vetting and QA for a specialized AI data project.
Score 32/100: pay 8.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 10/10. How we score
What they ask for
- Demonstrable work or educational experience in linguistics, education, or other fields requiring high attention to linguistic detail.
- Prior, tangible experience working in human data evaluation or annotation.
- Verified Brazilian Portuguese language proficiency of C1 or C2
$6–65/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
We are sourcing independent Audio Evaluation Specialists for an AI benchmark evaluation project assessing advanced agentic audio models.
Score 32/100: pay 8.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 10/10. How we score
What they ask for
- Demonstrable professional expertise in complex customer support, technical troubleshooting, or conversational AI evaluation.
- Native or bilingual proficiency in the target language, including fluency across all language skills (reading, listening, writing, and speaking), alongside strong analytical and…
- Basic computer programming literacy, specifically a comfortable understanding of JSON structures, functions, methods, and simple logic.
$6–65/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
We are sourcing independent Language Alignment & Resource Partners (LARPs) to provide native-level Portuguese language vetting and QA for a specialized AI data project.
Score 24/100: pay 8.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Demonstrable work or educational experience in linguistics, education, or other fields requiring high attention to linguistic detail.
- Prior, tangible experience working in human data evaluation or annotation.
- Verified Portuguese language proficiency of C1 or C2
$6–65/hr
still listed todayThe job
Are you an experienced voice actor eager to shape the future of AI? Large-scale language models and speech technologies are evolving rapidly, moving beyond simple interactions into expressive, human-like communication.
Score 32/100: pay 8.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 10/10. How we score
$6–65/hr
still listed todayExpert level: most of these want a degree, a licence or years of work in the field.
The job
Are you a Portuguese (Brazil) language expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of linguistic discovery.
Score 32/100: pay 8.1/40, recency 0/20, payouts 11.3/15, steady work 2.5/10, who can apply 10/10. How we score
up to $40/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
Automated metrics can't judge whether Portuguese text actually sounds right: tone, idiom, cultural nuance, and the thousand small choices a native speaker makes without thinking.
Score 35/100: pay 9.1/40, recency 7.1/20, payouts 11.3/15, steady work 5/10, who can apply 2/10. How we score
What they ask for
- Native or near-native fluency in Portuguese.
- Translation, localization, or professional writing experience preferred.
- Clear written English: your explanations are the training signal.
Apply on DataAnnotation for Portuguese Specialist on DataAnnotation (opens in a new tab)
up to $35/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
In this hourly, remote contractor role, you will work as a Portuguese Quality Assurance Lead (QAL) to oversee quality, consistency, and trainer performance across Portuguese AI training projects.
Score 31/100: pay 8/40, recency 7.1/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Bachelor’s or Master’s degree in Portuguese, Linguistics, Translation, Communications, Journalism, English, Education, Quality Assurance, or a relevant domain/related field.
- Native or near-native Portuguese proficiency with strong reading and writing skills.
- Strong grasp of the English language to follow project guidelines, communicate with teams, and provide clear feedback in English.
Apply on SME Careers for Portuguese Quality Assurance Lead (QAL) on SME Careers (opens in a new tab)
up to $30/hr
Expert level: most of these want a degree, a licence or years of work in the field.
The job
In this hourly-paid, fully remote contractor role, you will review AI-generated responses and/or generate language content, evaluate reasoning quality and step-by-step problem-solving, and provide expert feedback so outputs are accurate, logical, and clearly explained.
Score 30/100: pay 6.9/40, recency 7.1/20, payouts 11.3/15, steady work 2.5/10, who can apply 2/10. How we score
What they ask for
- Bachelor’s degree or higher in Translation, Linguistics, Localization, Communications, or a related field.
- Native or near-native Portuguese proficiency and strong command of the locale conventions for Portugal.
- Minimum C1 English proficiency (reading/writing) for interpreting prompts, sources, and evaluation guidelines.
Apply on SME Careers for Portuguese Language Expert on SME Careers (opens in a new tab)
Which platforms hire for this?
| Platform | Pay range | Getting in | Payouts | Open here |
|---|---|---|---|---|
| Alignerr | $15–150/hr | Hard to get in | Some delays | 11 |
| Mercor | $20–200/hr | Some screening | Pays on time | 5 |
| Invisible | $6–65/hr | Some screening | Pays on time | 5 |
| SME Careers | $20–130/hr | Some screening | Pays on time | 2 |
| DataAnnotation | $20–150/hr | Hard to get in | Pays on time | 1 |
| micro1 | $15–135/hr | Some screening | Some delays | 1 |
 Prolific | $8–30/hr | Fairly easy | Always on time | 0 |
 Mindrift | $15–90/hr | Some screening | Pays on time | 0 |
 TELUS Digital | $3–25/hr | Fairly easy | Pays on time | 0 |
 xAI | $35–100/hr | Hard to get in | Pays on time | 0 |
 Outlier | $10–50/hr | Fairly easy | Some delays | 0 |
 Appen CrowdGen | $2–25/hr | Easy to get in | Some delays | 0 |
Common questions
Are there AI training jobs in Portuguese?
Yes. 25 open listings ask for Portuguese today. Typical top rate: $40/hr. Half of the 25 listings that state an hourly rate offer that or more at the top of their range.
How much do Portuguese AI training jobs pay?
Today's Portuguese listings advertise up to $100/hr; the middle one tops out at $40/hr. Your rate depends on the project and your test results.
Do I need a degree for Portuguese language jobs?
Usually not. Language jobs test your writing and your eye for mistakes in a short assessment. Native or near-native fluency matters more than a degree.