AI Generalist Jobs Lisbon 2026

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 computer vision workflows.

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AI Generalist (Remote - Lisbon)

Title: AI Generalist Date: 25-02-2026 Company: Rexzone Country: PT Remote Type: Remote Employment Type: FULL_TIME Experience Level: Mid-Senior Industry: Technology Job Function: Engineering Skills: AI Generalist, RLHF, Large Language Models, Data Annotation, Prompt Evaluation Salary Currency: USD Salary Min: 63360 Salary Max: 126720 Pay Period: YEAR Rex.zone is actively recruiting for AI Generalist jobs in Lisbon for 2026. In this full-time remote role, you will drive large language model evaluation and training data quality. Your expertise in RLHF (Reinforcement Learning from Human Feedback), prompt evaluation, and complex data labeling will directly impact model performance improvement. We are looking for mid-senior professionals to manage NLP and computer vision annotation pipelines, ensuring strict annotation guidelines compliance across all AI/ML workflows.

Core Responsibilities in AI/ML Training Pipelines

As a senior AI Generalist, you will handle diverse tasks ranging from named entity recognition to content safety labeling. You will collaborate with AI labs, tech startups, and annotation vendors to refine LLM training pipelines. Daily workflows include executing prompt evaluation, conducting QA evaluation on generated outputs, and structuring high-quality datasets for machine learning models. Whether you have a background in freelance annotation or full-time AI engineering, this remote role demands high adaptability and precision to meet the evolving needs of the AI industry.

Frequently Asked Questions About AI Generalist Roles

  • Q: What is an AI Generalist at Rex.zone?

    An AI Generalist is a versatile professional who manages multiple stages of the AI training pipeline, including data labeling, RLHF, and QA evaluation for large language models.

  • Q: Is this Lisbon-based role fully remote?

    Yes, these AI Generalist jobs for 2026 are fully remote. While targeted at professionals in the Lisbon area, you can work from anywhere as a full-time or contract team member, collaborating with global AI labs and tech startups.

  • Q: What skills are required for this mid-senior position?

    Candidates need strong experience in large language model evaluation, prompt engineering, NLP, computer vision annotation, and ensuring training data quality through strict annotation guidelines compliance.

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