Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Portuguese Linguist for AI Training (Brazil)

$30 - $65 per hour

SaidGig

Help shape high-quality Portuguese language data for AI and machine learning projects from a remote setting. This contract role applies bilingual fluency and linguistic expertise to annotation, review, and language-resource development. Key Responsibilities

  • Annotate, label, and review Portuguese-language data for AI and machine learning applications.
  • Maintain linguistic accuracy and consistency across annotation and data-curation work.
  • Partner with cross-functional teams on language standards and project guidelines.
  • Provide expert feedback on language usage, translations, and data quality.
  • Document annotation processes and recommend workflow improvements.
  • Share insights and best practices on Portuguese language nuances in team discussions.
  • Help develop language resources tailored to project needs.
Qualifications
  • Native or near-native Portuguese proficiency and fluent English.
  • Experience with data annotation and language-data processing.
  • Strong written and verbal communication skills, attention to detail, and problem-solving ability.
  • Solid knowledge of Portuguese grammar, syntax, and regional variations.
  • Ability to work independently, meet deadlines remotely, and collaborate with multicultural, distributed teams.
  • Background in linguistics, language studies, or a related field is preferred.
  • Experience supporting AI or localization projects and familiarity with annotation tools or platforms are preferred.
Work Terms
  • Remote contract engagement.
Compensation
  • $30 to $65 per hour.
Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the Portuguese Linguist for AI Training (Brazil) in United States vacancy
  • $30 - $65 per hour

     ...Role Overview Annotate, review, and improve Portuguese language data used to train and evaluate AI systems, helping ensure linguistic accuracy and high-quality training material...  ..., and regional variations relevant to Brazil. Ability to work independently in a remote... 
    Training
    Portuguese language skills
    Hourly pay
    Contract work
    For contractors
    Remote work

    SaidGig

    United States
    1 day ago
  • $20 - $40 per hour

     ...Produce high fidelity Brazilian Portuguese audio that helps train next generation AI systems. This remote contract role...  ...that meet defined technical and linguistic quality standards. Key Responsibilities...  ...professional quality Portuguese, Brazil, audio recordings using... 
    Training
    Portuguese language skills
    Hourly pay
    Contract work
    Work experience placement
    Remote work

    SaidGig

    United States
    more than 2 months ago
  •  ...Description Job Description Company Overview Arrow Security & Training LLC (AST) is a privately-owned training company with our...  ...Job Description AST, LLC is currently seeking CAT III - Portuguese linguist / translator candidates to be considered for employment.... 
    Training
    Portuguese language skills
    Worldwide

    Arrow Security &Training LLC

    Maryland, MD
    27 days ago
  •  ...Responsibilities: Perform linguistic analyses on large datasets....  ...linguistic error analysis of AI model outputs, determining what...  ...preferably Vietnamese, Dutch, Portuguese, or Thai. Must have solid...  ...report progress education or training in the basics of project... 
    Training
    Portuguese language skills

    SGS Consulting

    Remote
    more than 2 months ago
  • $55 - $120 per hour

     ...languages: Greek, Indonesian, Japanese, Italian, Lithuanian, Portuguese, or Romanian Responsibilities: Provide accurate translation...  ...Manager. Founded in 1995, JTG is an Employee-Owned Company that is specialized in language services, training, and analytics.... 
    Training
    Portuguese language skills
    Hourly pay
    For contractors
    Freelance
    Work at office
    Remote work

    JTG

    Washington DC
    2 days ago
  • $26 - $28 per hour

     ...supporting speech and voice AI systems. This is a high-impact...  ...— helping ensure models are trained on accurate, well-structured...  ...~ Native-level fluency in Portuguese (Brazil) ~ Strong written...  ...of over 400,000 in-country linguistic resources. Driving innovation... 
    Training
    Portuguese language skills
    Full time
    Work experience placement
    Remote work
    Visa sponsorship

    Welo Data

    Washington DC
    11 days ago
  •  ...Meridial is seeking Kinyarwanda language experts to enhance AI language models. You'll review and correct AI-generated Kinyarwanda content, ensuring linguistic accuracy and fluency. Ideal candidates will have native or near-native fluency in Kinyarwanda and strong English... 
    Training
    Hourly pay
    Remote work
    Flexible hours

    Meridial

    United States
    3 days ago
  • $90k - $110k

     ...Job Summary The Cognitive Linguist / Conversational AI Specialist will be responsible for designing, developing, and maintaining Natural Language...  ...modeling, and conversation flows. Experience building, training, evaluating, and maintaining machine learning/NLU models.... 
    Training
    Full time

    Neshent Technologies

    Chicago, IL
    10 hours ago
  • $15 - $20 per hour

     ...Role Overview Help improve AI-narrated audiobooks by evaluating Brazilian Portuguese narration with the perspective of...  ..., transcription, proofreading, linguistics, or similar detail-focused review...  ...Experience with AI training data, model evaluation, audio annotation... 
    Training
    Portuguese language skills
    Hourly pay
    Part time
    Remote work

    SaidGig

    Remote
    17 days ago
  • $45 - $95 per hour

     ...Role Overview Help improve next-generation AI systems by applying Myanmar and English language expertise to high-quality linguistic analysis, transcription, evaluation, and annotation work. Your contributions will support how AI models learn, reason, and perform. Prior... 
    Training
    Hourly pay
    Contract work
    Remote work

    SaidGig

    United States
    more than 2 months ago
  • $65 - $98 per hour

     ...Help improve next-generation AI systems through expert Korean language evaluation, translation...  ...-quality language data, feedback, and training resources. No prior AI experience is...  ...correctness. Provide detailed linguistic feedback and annotations to strengthen AI... 
    Training
    Hourly pay
    Contract work
    Remote work

    SaidGig

    United States
    a month ago
  • $20 - $40 per hour

     ...deliver high-fidelity Brazilian Portuguese audio that will be used to train next-generation AI systems. This role focuses on...  ...samples, reviewing and ensuring linguistic quality, and collaborating remotely...  ...high-fidelity Portuguese (Brazil) audio recordings using professional... 
    Training
    Portuguese language skills
    Hourly pay
    For contractors
    Remote work

    SaidGig

    United States
    a month ago
  •  ...LTSA Program Manager - Brazil   Company Overview At Mitsubishi Power, we're not...  ...governmental regulations in English and Portuguese. Ability to write reports, business correspondence...  ...Tuition reimbursement and on-the-job training. Paid vacation, sick time and... 
    Training
    Portuguese language skills
    Contract work

    Mitsubishi Power

    Belle Isle, FL
    17 days ago
  •  ...Linguists, Instructional Designers, Technical Writers, And Ai Content Specialists Join a cutting-edge AI initiative focused on building the next generation...  ...role, you will play a critical part in improving AI training quality by creating precise rating guidelines,... 
    Training
    Full time
    Remote work
    Weekday work

    Weekday

    United States
    3 days ago
  • $35 per hour

     ...Position: Bilingual Portuguese Government / Public Policy Expert Type: Hourly contract...  ...policy frameworks into clear rubrics for AI training. Create accurate, culturally nuanced...  ...reflecting real-world public policy usage in Brazil. Write fluently in Brazilian... 
    Training
    Portuguese language skills
    Hourly pay
    Contract work
    Remote work

    Crossing Hurdles

    United States
    3 days ago
  • $150k - $180k

     ...professional growth. The Computational Linguist will contribute to a portfolio of...  ...area of expertise. • Experience utilizing AI/ML tools (including LLMs) and supporting...  ...general semantic search, etc. Experience training and/or tuning models preferred. • Experience... 
    Training
    Interim role
    Work at office

    University of Maryland

    College Park, MD
    2 days ago
  •  ...writing skills. Comfortable leveraging AI tools (e.g., chatbots, copilots, or...  ...experience in project management. Speak Portuguese fluently. You have leveraged AI to fundamentally...  ...Renew your laptop every 3 years Training budget Team building events Bank... 
    Training
    Portuguese language skills
    Remote work
    Flexible hours

    Belvo

    United States
    1 day ago
  • $45 - $65 per hour

     ...Overview Help shape foundational generative AI models by turning ambiguous program...  ...improves the quality and reliability of AI training data. Key Responsibilities Partner...  ...least 3 years of professional experience in linguistics, instructional design, technical writing,... 
    Training
    Hourly pay
    Weekday work

    SaidGig

    United States
    more than 2 months ago
  •  ...instinct to spot a "normalized" problem and the AI-native curiosity to create a solution...  ...markets, Fluent (Business Level) in Portuguese is required. What you get from this role...  ...in a culture focused on the development & training of its employees, incubating talent... 
    Training
    Portuguese language skills
    Full time
    Work experience placement
    Work at office
    Local area
    3 days per week

    Cloudflare

    San Francisco, CA
    more than 2 months ago
  • $35 - $45 per hour

     ...AI Tutor - Portuguese Remote United States SpaceXAI's mission is to create AI systems that...  ...will contribute to SpaceXAI's mission by training and refining Grok to excel in voice...  ...spoken output, accurate representation of linguistic and prosodic details (such as... 
    Training
    Portuguese language skills
    Full time
    Part time
    For contractors
    Remote work
    Worldwide
    10 hours per week

    Xai

    United States
    3 days ago
  • $21 - $30 per hour

     ...security with the world's most advanced AI-native platform. We work on large scale distributed...  ...makers. SDRs get world class sales training with a heavy focus on Sandler sales...  ...months. This role requires 100% fluency in Portuguese AND English (both written & verbal). This... 
    Training
    Portuguese language skills
    Hourly pay
    Work experience placement
    Work at office
    Local area
    3 days per week

    CrowdStrike Holdings, Inc.

    Austin, TX
    3 days ago
  • $15 - $20 per hour

     ...Audiobook QA Expert — Portuguese (Brazil) is a remote evaluation track for...  .... Why this role matters AI data reviewers help turn portuguese...  ...can target them in the next training run. Qualifications...  ...Nice to have Background in linguistics, content moderation, or... 
    Training
    Portuguese language skills
    Remote job
    For contractors
    10 hours per week

    AuraOne Human Data

    Remote
    12 days ago
  •  ...A leading technology firm is seeking a Linguist for a remote position to develop language components for voice-enabled technologies....  ...must have a Master’s degree with native fluency in Brazilian Portuguese and/or European Portuguese, experience in linguistic data analysis... 
    Portuguese language skills
    Contract work
    Remote work

    Intelliswift

    New York, NY
    4 days ago
  •  ...from both traditional search engines and AI answer engines across multiple languages....  ...languages, especially French, Spanish, Italian, Portuguese are a big advantage Daily use of...  ...re willing to allocate funds toward your training expenses English classes on our... 
    Training
    Portuguese language skills
    Remote work

    Planner 5D

    United States
    12 hours ago
  • $21 - $30 per hour

     ...security with the world’s most advanced AI-native platform. We work on large scale distributed...  ...makers. SDRs get world class sales training with a heavy focus on Sandler sales...  ...months. This role requires 100% fluency in Portuguese AND English (both written & verbal). This... 
    Training
    Portuguese language skills
    Hourly pay
    Full time
    Work experience placement
    Work at office
    Local area
    3 days per week

    CrowdStrike

    Austin, TX
    3 days ago
  • $38 per hour

     ...completed, but done right. You'll work closely with both people and AI systems — auditing outputs, supporting day-to-day execution, and...  ...combines data quality, light project coordination, and hands-on training, where your ability to guide others and think critically is just... 
    Training
    Portuguese language skills
    Full time
    Contract work
    Remote work
    Visa sponsorship

    Welocalize

    Los Angeles, CA
    4 days ago
  • $100k - $135k

     ...learning Maintain clear documentation and training systems to enable consistent execution...  ...adoption of new technologies, including AI, ensuring alignment to instructional and...  ...our students, such as speaking Spanish, Portuguese, Arabic, or a language commonly spoken by... 
    Training
    Portuguese language skills
    Summer work
    Work at office
    Immediate start
    2 days per week

    Excel Academy Charter Schools

    Chelsea, MA
    3 days ago
  • $15 - $20 per hour

     ...make the next generation of AI-narrated audiobooks sound genuinely...  ...re building a team of native Portuguese speakers who love audiobooks...  ...transcription, proofreading, linguistics, or other detail-oriented...  ...Have Prior experience on AI training-data, model-evaluation, or... 
    Training
    Portuguese language skills
    Part time
    Remote work

    Mercor

    Remote
    12 days ago
  •  ...Sigga digitizesindustrial maintenance with AI. At the world's largest refineries, mines...  ...from configuration, data, and training work,then plan each with owners, sequence...  ...planners, or consultants. WorkingSpanish or Portuguese. OtherRequirements Willingto travel... 
    Training
    Portuguese language skills
    Remote job
    Full time
    Worldwide

    Jobleads-US

    Kentucky
    2 days ago
  •  ...Portuguese In-Person Interpreter Location: Tacoma, onsite servicing Pierce County Job Type: Independent Contractor This is a...  ...Certification by CCHI, NBCMI or DSHS. Accredited Medical Interpreting Training course (i.e.: ALTA, MITS, Bridging the Gap, MiTio, Cross-... 
    Training
    Portuguese language skills
    Contract work
    For contractors
    Flexible hours

    Universal Language Service Inc

    Tacoma, WA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Portuguese Linguist for AI Training (Brazil). Be the first to apply!