Empregos de data annotation em Porto

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...

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...

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 in...

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...

Overview:Welo Data is looking for experienced quality reviewers to join a high-profile AI training data project in collaboration with one of the world's leading voice AI platforms. As a Verifier, you will play a critical role in shaping the way AI understands and interacts with people globally by ensuring transcription accuracy and compliance with quality...

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...

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...

Sword Health is seeking a meticulous image and video annotator to label physical exercise data using our internal tools. You will apply structured guidelines consistently, review peers’ work, and ensure high accuracy across large volumes. Remote, full-time role based in Portugal. No clinical or technical background required, training provided, with a...

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...

Overview This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Data and AI Engineer in EMEA. As a Data and AI Engineer, you will design, implement, and optimize advanced data pipelines and backend integrations to support next-generation cybersecurity and data-intensive platforms. You will work on scalable...

Mindrift is seeking a freelance annotation specialist to join a remote, project-based opportunity. Responsibilities include reviewing data, labeling content, and adhering to guidelines. You should have a Bachelor's degree, at least 1 year of professional experience, strong attention to detail, and excellent English skills (C1+). This role offers flexible...

Please submit your resume 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 permanent employment. What this opportunity involves Annotation is what helps AI make...

Software Developer for Training AI Data – Remote Applying for the Software Developer for Training AI Data – Remote role at G2i Inc. Location & Employment Remote (Worldwide – see accepted locations below) Contract Type: Long‑term Contract Hours: Flexible, 15‑40+ per week Immediate Opportunity – Tool Use Sprint Starting This Week! We’re...

This is a fully remote, hourly contractor role supporting AI data and language projects on a project-based, flexible hour basis. Project scopes vary and may include: Data annotation: labeling, classifying, and structuring documents, tables, and other content to support AI training datasets. LLM evaluation: reviewing AI-generated responses for accuracy,...

Senior AI Engineer - Data & Infrastructure for Multimodal Models (100% Remote) Join to apply for the Senior AI Engineer - Data & Infrastructure for Multimodal Models (100% Remote) role at Tether.io Senior AI Engineer - Data & Infrastructure for Multimodal Models (100% Remote) 3 days ago Be among the first 25 applicants Join to apply for the Senior AI...

Mindrift seeks a freelance annotation specialist for a remote, project-based role. You will review data, label content, and follow guidelines. A Bachelor's degree, 1+ year experience, strong attention to detail, and excellent English (C1+) are required. Flexible hours and contribution to AI model testing are included. The position is remote, part-time...

We are looking for Legal Annotators to support the training and evaluation of AI capabilities for contract management platforms in Portuguese (Portugal). - Job Type: Freelance - Location: Work from home - Work Schedule: Part-time - 25+ flexible hours per week - Start Date: Immediately - Duration: TBC - Rate: 22.95 USD/hour Help Shape the Future of Legal...