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
$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
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 and...FreelancePart timeRemote work$108k - $208k
Job ID: 9660 Date Posted: September 30, 2026 Space Dynamics Laboratory (SDL) is seeking a Data Engineer to join our C4ISR Division. This position is embedded with a Government customer to support the design and implementation of a data infrastructure for an intelligence...SuggestedFull timeRemote work$83.43k - $222.48k
We're building a world of health around every individual - shaping a more connected, convenient and compassionate health experience. At CVS Health®, you'll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize...SuggestedHourly payFull timeTemporary workLocal area$160k - $205k
Hitachi Rail is seeking a Senior Data Engineer to serve as a technical lead for enterprise data engineering delivery for Hitachi Federal customers. Based in Washington, VA on an onsite schedule, this role supports professional services engagements by guiding solution...SuggestedFlexible hours$120k - $140k
...Everforth ECS is seeking an AI Prompt Engineer to work in Arlington, VA. ECS is seeking talented professionals to join our growing team supporting the Cybersecurity and Infrastructure Security Agency's (CISA) Technical Engineering and Support Services (TESS) program...$175k - $225k
...partnering approach. Job Type Full‑time Location VA US (Primary) Job Description VAE, Inc. is seeking an Agentic AI Engineer to design, develop, and drive innovative agentic AI projects supporting national security programs and missions under the C5...Full time$111.3k - $186.1k
ID lavoro: 10440389 | Amazon Data Services, Inc. Overview As part of the global controls team, you will work with highly motivated experts and innovators in the data center industry. You will be responsible for troubleshooting, project management, and maintaining...Local areaImmediate startFlexible hours$25 per hour
Job description We are urgently looking for people interested in taking online surveys for Fortune 500 brands. If you are a self-starter, looking for flexible hours throughout the week, this may be for you! Earn up to $25 per survey. Share your opinion and help influence...Extra incomeFull timeTemporary workPart timeSecond jobRemote workWork from homeFlexible hours- Overview General Opportunities - Psychiatric Mental Health Nurse Practitioner - PMHNP Blackbird Health delivers virtual and in-person mental health services across Pennsylvania, Virginia, New Jersey, and beyond. We take a whole-child approach, addressing root causes by...Weekly payFull timeContract workPart timeSecond job
- ABOUT THE JOB Please read the following job description thoroughly to ensure you are the right fit for this role before applying. Do you know why Domino's Pizza hires so many drivers? Well, aside from the fact that our delicious pizza is the perfect solution for ...Extra incomeSecond jobFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to AI Trainer - Freelance Annotator (Portuguese). Be the first to apply!



