Empregos de data annotation em Aveiro

39 vagas de data annotation em Portugal. Encontre vagas atualizadas diariamente.


  • Aveiro, Portugal YO AI Labs Tempo integral 12 000 € - 24 000 € Contrato

    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...


  • Aveiro, Portugal YO AI Labs Tempo integral 72 000 € - 108 000 € Contrato

    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...

  • Odia Transcription

    Há 2 dias


    Aveiro, Portugal Mercor Tempo integral 12 000 € - 21 000 € Contrato

    Mercor is seeking a detail-oriented native Odiya speaker to annotate and transcribe complex documents. You will identify and bound meaningful regions, ensure precise reading order, and reproduce all text in Odiya script with careful attention to diacritics. Ideal candidates have experience with document annotation or QA for training data, and can handle...


  • Aveiro, Portugal Mercor Tempo integral 13 000 € - 18 000 € Contrato

    Odia. Native fluency in Odia (Oriya), including full command of Odia script and orthography, is required for this position. All annotation and transcription work is performed in Odia. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely see. This project builds training data for...

  • AI Data Trainer

    Há 3 dias


    Aveiro, Portugal YO AI Labs Tempo integral 72 000 € - 108 000 € Contrato

    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...

  • Data and AI Engineer

    Há 24 horas


    Aveiro, Portugal Jobgether Tempo integral 60 000 € - 80 000 € Contrato

    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...


  • Aveiro, Portugal YO AI Labs Tempo integral 17 000 € - 30 000 € Contrato

    YO AI Labs is seeking a Generalist to support AI and data-focused projects. You will review, evaluate, and annotate information across topics while maintaining high accuracy and quality. This remote contractor role requires excellent English, sharp attention to detail, and the ability to manage time across multiple projects. Prior experience in data...

  • Senior AI Engineer

    Há 24 horas


    Aveiro, Portugal Tether.io Tempo integral 80 000 € - 140 000 € Contrato

    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...


  • Aveiro, Portugal G2i Inc. Tempo integral 47 291 € - 94 582 € Contrato

    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...


  • Aveiro, Portugal Benture Tempo integral 18 000 € - 24 000 € Contrato

    Audiobook QA Expert – European Portuguese | $15–20/hr | Remote (Portugal Preferred) Join a growing team helping shape the future of AI-narrated audiobooks. We're looking for native European Portuguese speakers who are passionate about audiobooks and have a sharp, analytical ear to evaluate and improve AI text-to-speech narration. This is a part-time,...

  • AI Trainer

    Há 2 dias


    Aveiro, Portugal YO AI Labs Tempo integral 3 € - 4 € Contrato

    Generalist Job Type: Contractor Location: Remote Role Overview We are looking for 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 - Analyze,...

  • AI Generalist

    Há 3 dias


    Aveiro, Portugal Rex.zone Tempo integral 42 000 € - 64 000 € Contrato

    Explore remote AI Generalist jobs in Lisbon for 2026. Join Rex.zone to power AI training pipelines through data labeling, RLHF, and large language model evaluation. As an AI Generalist, you will shape the future of machine learning by ensuring training data quality, executing prompt evaluation, and driving model performance improvement across diverse NLP and...


  • Aveiro, Portugal Mercor Tempo integral 20 000 € - 28 000 € Contrato

    Mercor is seeking a meticulous native Japanese speaker to join our data annotation team. You will annotate structure, transcribe content exactly in Japanese (including kanji, kana and furigana), and ensure reading order accuracy on diverse documents. You will work under supervision of a second Japanese expert, reviewing and flagging illegible regions, and...


  • Aveiro, Portugal Mercor Tempo integral 36 000 € - 46 000 € Contrato

    Korean Transcription Expert - Fully Remote Descrição do Emprego - Korean Transcription Expert - Fully Remote Empresa : Mercor Tipo de Emprego : Periodo Integral Lisbon Lisbon District Portugal Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General...


  • Aveiro, Portugal Obsidian Tempo integral 11 000 € - 17 000 € Contrato

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


  • Aveiro, Portugal Mercor Tempo integral 36 000 € - 54 000 € Contrato

    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...


  • Aveiro, Portugal Obsidian Tempo integral 14 000 € - 24 000 € Contrato

    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...

  • AI Trainers Network

    Há 24 horas


    Aveiro, Portugal Lever, Inc. Tempo integral 17 000 € - 30 000 € Contrato

    This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a AI Trainers Network - Maltese based in Portugal. Join a global contributor network helping shape the next generation of artificial intelligence through human expertise and linguistic insight. This opportunity is designed for...


  • Aveiro, Portugal Mercor Tempo integral 12 000 € - 21 000 € Contrato

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


  • Aveiro, Portugal Crossing Hurdles Tempo integral 12 977 € - 17 696 € Contrato

    A tech company is seeking a part-time LLM – AI Quality Analyst (Personalization) to evaluate personalization features for AI models. This role requires fluency in Portuguese and experience in data annotation or AI quality evaluation. The candidate will work remotely, analyzing responses, designing conversational prompts, and providing structured feedback....