Empregos de data annotation em Lisboa

YO AI Labs in Portugal is seeking Generalists with strong analytical and critical-thinking skills to support AI and data-focused projects. The role involves reviewing, evaluating, and annotating information across different topics while maintaining high accuracy and quality. Key responsibilities include analyzing and annotating data, evaluating AI-generated...

Welo Global is seeking detail-oriented Trainers to support an AI data annotation project. You will review pre-seeded questions and images and produce accurate golden answers based on visual data, remotely. This freelance, remote role offers 10 hours per week, pay of $36 per hour, and long-term opportunity. Native Portuguese, fluent English, and a Bachelor's...

Toloka connects smart, curious people with freelance online tasks that train and improve AI. As an annotator, you may participate in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses—when projects are available.This is project-based, remote freelance work with compensation varying by project. On this...

Welo Data, part of Welocalize, is seeking a detail-oriented Quality Control Specialist to verify AI data annotation tasks. You will review Trainer submissions, assess accuracy against guidelines, and provide constructive feedback to maintain data quality. This remote freelance role offers 10 hours weekly with compensation at $39.60 per hour. Ideal...

Welo Global is seeking detail-oriented Trainers to support an AI data annotation project. You will review pre-seeded questions with images and provide accurate "golden" answers based on visual content, working remotely as a freelance contributor for about 10 hours per week. The role requires strong attention to detail, the ability to follow written...

YO AI Labs is seeking a Senior AI Trainer for a remote contract role to support our video annotation project. You will review robotic-arm footage, apply precise guidelines, and deliver high-quality labeled data to improve AI training systems. Ideal candidates bring exceptional attention to detail, strong communication, and the ability to work independently...

Fluent Language Skills Required: Telugu. Native fluency in Telugu, including full command of Telugu script and orthography, is required for this position. All annotation and transcription work is performed in Telugu. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This...

Sword Health is seeking a qualified physical therapist to join our Data & Tooling team as a remote exercise-annotation specialist. You will watch sessions, assess movement quality, and provide structured clinical feedback to ground our AI models. This full-time role (40 hours/week) is remote with a part-time option (min 20 hours/week). You'll calibrate with...

Mercor seeks a native Malayalam annotator for a data-labeling project focused on Malayalam documents, handwriting, and complex page layouts. You will bound regions, assign types, and ensure exact Malayalam transcription for diverse sources. Applicants must show fluent Malayalam, meticulous attention to character-level accuracy, and experience with document...

Fluent Language Skills Required: Malayalam. Native fluency in Malayalam, including full command of Malayalam script and orthography, is required for this position. All annotation and transcription work is performed in Malayalam. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely...

Mercor seeks a native Malayalam annotator for a data-labeling project focused on Malayalam documents, handwriting, and complex page layouts.You will bound regions, assign types, and ensure exact Malayalam transcription for diverse sources. Applicants must show fluent Malayalam, meticulous attention to character-level accuracy, and experience with document...

Fluent Language Skills Required: Malayalam. Native fluency in Malayalam, including full command of Malayalam script and orthography, is required for this position. All annotation and transcription work is performed in Malayalam.Why This Role ExistsDocument understanding breaks down fastest in the languages that parsing and vision-language models rarely see....

Senior AI Trainer Role Type: Contractor, Remote Location: North America, Latin America, Europe, UK, Oceania We're seeking Senior AI Trainers to support a customer project focused on improving AI systems through expert-level video annotation and data labeling. You'll review robotic-arm footage, create precise annotations, and provide high-quality data to...

Toloka connects a global community of freelancers with AI training tasks to help products improve. As an annotator, you may review text, images, and videos, labeling content according to project guidelines and flagging any material that is factually incorrect or inappropriate.This project-based opportunity pays up to $17 per hour equivalent and offers...

Mission: We are seeking a skilled and motivated Data Scientist to join our team and contribute to the development, implementation, and optimization of advanced algorithms and models. Your work will support key teams such as Field Operations, R&D, Flights, Simulation, Autopilot by automating workflows and enhancing decision support, mission planning, and...

Mission: We are seeking a skilled and motivated Data Scientist to join our team and contribute to the development, implementation, and optimization of advanced algorithms and models. Your work will support key teams such as Field Operations, R&D, Flights, Simulation, Autopilot by automating workflows and enhancing decision support, mission planning, and...

Fluent Language Skills Required: Korean. Native fluency in Korean, including full command of Hangul, is required for this position. All annotation and transcription work is performed in Korean.Why This Role ExistsDocument understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This project builds training data...

Thoth AI is a cutting-edge data solutions company specializing in AI training data, content moderation, and linguistic services. We collaborate with global tech leaders to improve machine learning models and enhance user experiences across digital platforms. We’ve recently opened our new office in Lisbon, and we’re excited to grow our team in a city...

About the Role We are looking for detail-oriented Trainers to support an AI data annotation project. In this role, you will review pre-seeded questions paired with images and provide accurate "golden" answers based on what you observe in the image. This is a task-based, remote-friendly opportunity ideal for individuals who are meticulous, and able to follow...

Thoth AI is seeking a detail-oriented Data Labeler fluent in German to support a global video platform. You will review multimedia content, label it into predefined poor-quality categories, and help train AI models.The role requires onsite work in Lisbon, English proficiency at B2, and a minimum of six months in data annotation or content moderation....