Portuguese (Portugal) Data Labeling Associate - California based
$34 per hourWelo Data
Overview Refine the Future of Multilingual AI Do you have professional-level proficiency in Portuguese (Portugal) and a background in writing, with attention to AI safety? Responsibilities Model Evaluation: Critique Arabic AI outputs for accuracy, fluency, and tone, providing structured feedback to drive model improvement. Safety Engineering: Use your 2+ years of GenAI safety experience to identify bias, risks, and failure modes in Arabic datasets. Guideline Evolution: Apply complex linguistic guidelines thoughtfully and help refine evaluation frameworks to reflect real-world Arabic dialects and contexts. Strategic Insights: Identify trends in model performance and communicate findings clearly to technical stakeholders. Collaborative Calibration: Participate in team syncs to ensure consistent quality across global AI workstreams. Project Details Employment Type: W2 Full-Time Employee Hours: 40 hours/week Location: California (On-Site: San Francisco, Sunnyvale, or Burlingame) Pay Rate: 34 $ (per hour) What We’re Looking For Linguistic Mastery: Professional-level proficiency in Portuguese (Portugal) and a bachelor’s degree or higher. English Proficiency: B2 level or superior English skills to navigate technical guidelines and stakeholder syncs. Professional Writing: 1–2 years of experience in professional writing, journalism, or content creation. AI Safety Expertise: 2+ years of experience focusing on Safety & Trust in Generative AI data delivery. Critical Thinking: The ability to make sound judgment calls in ambiguous "grey area" scenarios. Technical Agility: A natural curiosity about LLMs and the confidence to flag issues when a model's behavior feels "off." Premium Campus Benefits Gourmet Dining: Free breakfast, lunch, and dinner with a wide variety of cuisines. Snack Suites: Micro-kitchens stocked with premium coffee, beverages, and healthy treats. Campus Features: Modern collaborative spaces and unique amenities like rooftop nature parks (at select locations). Full Security: Comprehensive Medical, Dental, and Vision + 401(k) and HSA eligibility. Commuter Support: Free transport, shuttles, and bike-to-work perks. Why This Role This is an opportunity to move beyond traditional data work and play a direct role in how AI systems are evaluated and improved. The work is fast-moving, collaborative, and increasingly central to how modern AI systems are built and deployed. #J-18808-Ljbffr Welo Data
$38 per hour
...maintain a high bar for data integrity? Welo Data... ...isn't just about labeling; you are the Quality... ...between our Data Labeling Associates (DLAs) and Team Leads... ...for cutting-edge Portuguese (Portugal) AI models is not only... .../week Location: California (On-Site: San Francisco...Portuguese language skillsHourly payFull timeWork at officeShift work$34 per hour
Overview Welo Data is looking for sharp, curious, and detail-oriented individuals to join our team as Data Labeling Associate. This is not a traditional annotation role. You’ll be working... ...high-quality feedback Perform audit-based reviews of data and model behavior — identifying...SuggestedFull timeContract workRemote workVisa sponsorship$26 - $28 per hour
...Speech And Voice Ai Analyst Welo Data is hiring Portuguese (Portugal)-speaking analysts to support our Speech And Voice AI team. You'll help build... ...depending on location and experience What You'll Do Label and annotate speech/voice data (transcription, tagging,...Portuguese language skillsFull timeVisa sponsorshipWork visa$70.72k
\n What You’ll Do Evaluate AI model outputs and provide structured, high-quality feedback Perform audit-based reviews of data and model behavior — identifying patterns, edge cases, and failure modes Apply guidelines thoughtfully — and flag when they don’t...SuggestedFull time$34 per hour
...Description Overview Welo Data is looking for detail-oriented... ...to join our team as Data Labeling Analysts, supporting speech... ...~ Native-level fluency in Portuguese (Portugal) ~ Strong written communication... ...signals in application materials based on available information....Portuguese language skillsFull timeWork experience placementRemote workVisa sponsorship- ...Data Operations Associate, Opinion Research Remote, United States ( Bay Area, NYC, Washington DC... ...our clients with actionable guidance based on that research. We have a long track... ...agreed timelines. Prepare clean, well-labelled data files and crosstab outputs ready...Remote jobFull timeFlexible hours
- Job Responsibilities The ideal candidate will have a foundational understanding of machine learning, data annotation, quality assurance, and natural language processing. They will play a pivotal role in updating our machine learning models and ensuring their efficacy....Full time
- Welo Data is seeking a Data Labeling Associate for Project Perseus in San Francisco, CA. This position involves critiquing Arabic AI outputs for accuracy, identifying biases in datasets, and ensuring model improvement. Candidates must have native Turkish proficiency, a...
$26 - $28 per hour
...Job Description Job Description Overview Welo Data is looking for detail-oriented and reliable individuals to join our team as Data Labeling Analysts, supporting speech and voice AI systems. This is a high-impact production role focused on building the datasets...Full timeWork experience placementRemote workVisa sponsorship$63k - $140k
...LevelAssociateJob Description & SummaryThe OpportunityAs a Deal Data Technology & Analytics, Experienced Associate you will help clients use data to inform business... ..., San Diego County Fair Chance Ordinance, and the California Fair Chance Act, where applicable, arrest or...Full timeInternshipH1bShift work- ...Job Description About Grupo Data Data Group is a multinational... ...operating in Brazil, Portugal, Spain, the US, and Canada, organized... ...and work model Hybrid, based in San Francisco, CA. Regular... ...technology ecosystem is a plus. Portuguese or Spanish is a plus, not a...Portuguese language skillsLocal area
- Contact Review, supporting CGS Federal, seeks a remote Portuguese Document Reviewer to assist with eDiscovery, privilege review, and related tasks. The project-based role emphasizes accuracy and adherence to client workflows. Qualified candidates will be fluent in Portuguese...Portuguese language skillsRemote work
- Overview Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global... ...first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...Remote jobContract workFor contractorsTraineeship
$93.6k
...not predetermine one’s opportunities. Position Overview The Data Analytics Associate plays a key role in strengthening Tipping Point’s ability... ...Equal Employment Opportunity company. We do not discriminate based on race, religion, color, national origin, gender (...Hourly payWork at officeRemote workMonday to Friday- ...strong analytical and critical-thinking skills to support AI and data-focused projects. The role involves reviewing, evaluating, and... ...attention to detail and accuracy. Experience in data annotation or labeling is a plus. Strong time management and ability to work...Remote jobFor contractors
$34 per hour
...Portuguese Document Reviewer Contact Review - Washington, DC Location: Remote Start... ...signals in application materials based on available information. These tools assist... ...If you would like more information about how your data is processed, please contact us.Portuguese language skillsRemote work- Welo Data in San Francisco seeks a full-time AI Evaluator with professional proficiency in Portuguese (Portugal) and experience in Generative AI safety. The role involves critiquing AI outputs, identifying biases, and refining evaluation frameworks. Candidates should possess...Portuguese language skillsFull time
$28.13 - $37.5 per hour
...through the responsible use of data and AI. We believe that... ...and troubleshoot complex, web-based software suites Working... ...skills (French, German, Spanish, Portuguese) Familiarity with IAB TCF... ..., CSS, Javascript For California, Colorado, Connecticut, Nevada...Portuguese language skillsWork experience placementWork at officeLocal areaWorldwideFlexible hoursShift workWeekend workAfternoon shift3 days per week1 day per week- ...preparing course materials. This role offers a flexible appointment based on the academic semester with competitive salary and requires applicants to be authorized to work in the U.S. Applications close on April 9, 2027. #J-18808-Ljbffr University of California-BerkeleyPortuguese language skillsWork at officeFlexible hours
$112k
...Silicon Valley (United States) | Southern California (United States)Compensation Range: $112,0... ...: On top of a competitive salary (based on your location, experience, and skills)... ...organization. You will shape the future of what data-driven organizations look like, drive...ApprenticeshipWork at officeLocal areaEasy work- ...customer experiences with AI. We are primarily an in-person company based in San Francisco, with growing offices in Atlanta, New York,... ...recent AI developments.Professional fluency in both Brazilian Portuguese and English.Degree in a technical or related field, or...Portuguese language skillsFull timeFlexible hours
- ...clients' complex immigration cases. We base our legal assistance work on compassion,... ...Qualifications Licensed to practice law in California preferred; Habeas Corpus experience... .../Spanish), additional languages such as Portuguese or Mam preferred; Ability to communicate...Portuguese language skillsFull timeWork at officeRemote workMonday to FridayFlexible hours
$180k - $390k
...and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America,... ...recent AI developments.Professional fluency in both Brazilian Portuguese and English.Degree in a technical or related field, or equivalent...Portuguese language skillsFull timeFlexible hours$211k - $251k
...to both non-technical and technically skilled audiences, including recent AI advancements ~ Professional fluency in Brazilian Portuguese and English ~ A degree in a technical or related discipline, or equivalent professional experience ~ AI-related experience, particularly...Portuguese language skillsFull timeFlexible hours$29 - $45 per hour
...Position: AI Safety Experts — English & Portuguese (global) Type: Contract Compensation... .... Generate high-quality human data by annotating failures, classifying vulnerabilities... ...) Upload resume AI interview based on your resume Submit form Resources...Portuguese language skillsContract workSummer workRemote work- ...reproductive health family planning human rights gender-based violence women sexual rights sexual education lgbt... ...fluency in English is required, and proficiency in Spanish, Portuguese, or French is an asset. The ideal candidate will have a diverse...Portuguese language skills
- ...AI. We are primarily an in‑person company based in San Francisco, with growing offices in... ...: professional fluency in both Brazilian Portuguese and English 8-12+ years of experience in... ...trends, identify opportunities, and make data‑driven decisions. Prospecting & lead generation...Portuguese language skillsFull timeFlexible hours
- ...and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America,... ...with technical concepts - reading API documentation, understanding data models and system architecture, and following engineering tradeoffs...Portuguese language skillsFull timeFlexible hours
$126k - $210k
...LATAM.Bilingual in English and Spanish. Portuguese is a plus.Demonstrated success in expanding... ...the ability to effectively communicate data-driven insights to both internal and external... ...and supporting a customer portfolio based primarily in LATAM, requiring daily verbal...Portuguese language skillsRemote work- ...Luminance’s relationships with our large international client base Own specific client relationships Understand the client’s business... ...languages (particularly French, German, Spanish, Italian, Portuguese and Dutch) are desirable, but not essential #J-18808-Ljbffr LuminancePortuguese language skills
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Portuguese (Portugal) Data Labeling Associate - California based. Be the first to apply!
- data entry associate San Francisco, CA
- data associate San Francisco, CA
- provider data specialist San Francisco, CA
- oncology data specialist San Francisco, CA
- data science associate San Francisco, CA
- data management specialist San Francisco, CA
- data management associate San Francisco, CA
- data specialist San Francisco, CA
- portuguese language San Francisco, CA
- portuguese San Francisco, CA




