AI Trainer - Freelance Annotator (Portuguese)
$23 per hourToloka Annotators
Overview This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English. At Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial intelligence. What We Do The Toloka Annotators connects individuals with Generative AI projects from leading tech innovators. Our mission is to unlock the full potential of AI by involving real people from around the world in the development process. About The Role Annotation is what helps AI make sense of the world. As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. Responsibilities Carefully review provided data (text, images, or videos) Label or classify content based on project guidelines Identify and flag factually incorrect, sensitive, inappropriate, or unclear material Important note : This is project-based work. Tasks are available only when projects are active. You may be invited to one or more projects depending on your profile and current opportunities. Requirements Currently studying at a university or holding a completed Bachelor's, Master's, or PhD degree in any professional field Proficient in Portuguese (C2) and advanced in English (C1 or higher), both written and spoken Logical thinking, fact-checking and reasoning abilities Strong attention to detail and ability to understand and follow complex instructions Strong communication skills, including the ability to ask clarifying questions when needed Genuine interest in technology and artificial intelligence Benefits Get paid for your expertise, with rates that can go up to $23/hour depending on your skills, experience, and project needs Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments Work on advanced AI projects and gain valuable experience that enhances your portfolio Influence how future AI models understand and communicate in your field of expertise #J-18808-Ljbffr
$23 per hour
A leading AI project company is seeking annotators for various Generative AI projects. Responsibilities include reviewing and labeling... ...on accuracy and detail. Candidates should be proficient in Portuguese and have advanced English skills. This role offers flexible part...FreelancePortuguese language skillsPart timeRemote workFlexible hours$18 per hour
...curious people from around the world with freelance online tasks that train and improve... ...Annotators connects individuals with Generative AI projects from leading tech innovators.... ...helps AI make sense of the world. As an annotator, you may be invited to take part in online...FreelancePart timeInternshipRemote work$60 per hour
...Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not...FreelancePermanent employmentTemporary workPart time10 hours per week$55 per hour
...Overview Be among the first 25 applicants. Get AI-powered advice on this job and more exclusive features. This opportunity is only... ...and sometimes work with challenging, complex guidelines. Our freelance role is fully remote so, you just need a laptop, internet...FreelancePart timeRemote work$55 per hour
...Freelance Biology Expert with Python - AI Trainer 3 days ago Be among the first 25 applicants This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English...FreelancePart timeRemote work$76 per hour
...Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not...FreelanceHourly payPermanent employmentTemporary workPart time10 hours per week$69 per hour
...Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not...FreelanceHourly payPermanent employmentTemporary workPart time10 hours per week$60 per hour
...Join the DataAnnotation team and contribute to developing cutting‑edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for proficient programmers to help advance AI development. As a member of DataAnnotation’s coding...FreelanceHourly payFull timeRemote workFlexible hours$50 - $60 per hour
...DataAnnotation is committed to creating high-quality AI. Enjoy the flexibility of remote work and the freedom to set your own schedule. This is an opportunity to work with us as an independent contractor. We're currently expanding into an exciting new area – teaching...Hourly payContract workFor contractorsWork experience placementRemote work$60 per hour
A dynamic tech company is seeking proficient programmers to join their remote AI development team. As part of the team, you'll tackle diverse coding challenges, contribute to advanced AI models, and enjoy flexible schedules. Ideal candidates will be fluent in English and...Hourly payRemote workFlexible hours$10 per hour
...This is a project-based opportunity on an AI training platform - not a job. No fixed hours, no commitment beyond what fits your schedule... ...without unnecessary pauses or contrived movements Why is this freelance opportunity a great fit for you? Earn while you do your...FreelanceHourly pay$40 per hour
A cutting-edge AI firm is seeking experienced quantitative professionals to evaluate and improve AI models. This fully remote role allows you to work flexibly while undertaking important tasks like statistical analysis, predictive modeling, and providing essential feedback...Hourly payRemote work$50 - $60 per hour
...DataAnnotation is committed to creating high-quality AI. Enjoy the flexibility of remote work and the freedom to set your own schedule. This is an opportunity to work with us as an independent contractor. We're currently expanding into an exciting new area – teaching...Hourly payContract workFor contractorsWork experience placementRemote work$50 - $60 per hour
...DataAnnotation is committed to creating high-quality AI. Enjoy the flexibility of remote work and the freedom to set your own schedule. This is an opportunity to work with us as an independent contractor. We're currently expanding into an exciting new area – teaching...Hourly payContract workFor contractorsWork experience placementRemote work$20 per hour
...We are looking for an OR Scheduling Coordinator to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model. In this role, you will need to be an expert in...Hourly payFull timePart timeFor contractorsRemote workFlexible hours$40 per hour
A leading AI development company is seeking experienced quantitative professionals to evaluate AI-generated work and contribute to innovative AI systems. This fully remote position offers the flexibility to work on projects at your convenience, starting at $40+ USD per...Hourly payRemote work$60 per hour
A remote data-focused company is seeking experienced quantitative professionals to evaluate AI-generated analyses and solve complex problems. You will work flexibly, from anywhere in the US or other approved regions. The role requires 2+ years in a quantitative field and...Hourly payRemote work$40 per hour
...Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for experienced quantitative professionals to help advance AI development. AI models are increasingly...Hourly payFull timeRemote workFlexible hours$40 per hour
...We are looking for an existing chemistry professional to help train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model. In this role, you will need to hold an expert understanding...Hourly payFor contractors$60 per hour
...A leading AI development company is seeking proficient programmers to contribute to cutting-edge projects. Responsibilities include designing coding problems for AI systems, specifically in Android development, and writing clear, high-quality code. Flexibility in scheduling...Remote work$40 per hour
A tech company focused on AI development is seeking experienced quantitative professionals for a fully remote role. Candidates will evaluate AI-generated quantitative work, solve technical problems, and provide critical feedback to shape the future of AI models. With competitive...Hourly payRemote work$76 per hour
...Mindrift is seeking part-time contributors for project-based AI opportunities. The role focuses on simulating real physics research workflows by designing problems requiring Python programming. Ideal candidates are physicians with a degree in physics and experience in...FreelanceHourly payPart time10 hours per week$50 - $60 per hour
...DataAnnotation is committed to creating high-quality AI. We are looking for an Asset Management Analyst to join our team to help train the next generation of AI while enjoying the flexibility of remote work and the freedom to set your own schedule. This role is designed...Hourly payFull timeContract workPart timeWork experience placementRemote workFlexible hours$40 per hour
...apply for the Administrative Law Attorney role at DataAnnotation . We are looking for legal experts to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model...Hourly payContract work- ...digital maps and evaluate information for accuracy. This part-time freelance role allows for flexible working hours and requires candidates... ...skills and the ability to engage with diverse tasks. Join a dynamic team and make a difference in AI innovation. #J-18808-LjbffrFreelancePart timeRemote workFlexible hours
$110k - $200k
...customer’s unique communication and operational objectives throughout the U.S. and across the globe. Position Summary AGI is seeking Portuguese (European) Language Instructors to work with a diverse team of linguists, intelligence analysts, and collection specialists...Portuguese language skillsContract workTemporary workFor contractorsLocal area$74.1k - $148.3k
...together the data, infrastructure, applications, and expertise to power everything from industry innovations to life‑saving care. And with AI embedded across our products and services, we help customers turn that promise into a better future for all. Discover your potential...Temporary workFlexible hoursShift work$91.4k - $187k
Job Description Deploys physical plant cabling systems. Coordinates infrastructure implementation efforts for Oracle data centers. Collaborates with Program Management teams to ensure project deliverables are completed on time. Collaborates with vendors to deliver build...Temporary workFlexible hoursShift work- ...and a good understanding of national and local geography? This freelance opportunity allows you to work at your own pace and from the comfort... ...that is making a difference in the world! About TELUS Digital AI Community Our global AI Community is a vibrant network of 1...FreelancePart timeLocal areaRemote workWorldwide
- The Senior Analytics Engineer will take direct ownership of data ingestion, modeling, and governance work that is currently outsourced or distributed across an MSP, a project-based BI consultant, and prior internal contributors whose work was never unified under one owner...Interim role
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to AI Trainer - Freelance Annotator (Portuguese). Be the first to apply!


