AI Generalist Jobs Spain 2026

Explore full-time remote AI Generalist jobs in Spain for 2026. Join Rex.zone to power AI training pipelines through data labeling, RLHF evaluation, and large language model evaluation.

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About AI Generalist Roles at Rex.zone

Are you looking for remote AI Generalist jobs in Spain for 2026? At Rex.zone, we are hiring skilled professionals to drive model performance improvement and ensure training data quality. As an AI Generalist, your work directly impacts large language model evaluation, RLHF (Reinforcement Learning from Human Feedback), and prompt evaluation. Whether you are seeking freelance, contract, or full-time opportunities, this role bridges the gap between complex NLP tasks and AI training pipelines. Join our global team to provide high-quality data labeling, QA evaluation, and content safety labeling for the next generation of AI labs and tech startups.

Senior AI Generalist — Spain (Remote)

Title: Senior AI Generalist Date: 25-02-2026 Company: Rexzone Country: Spain Remote Type: Remote Employment Type: FULL_TIME Experience Level: Mid-Senior Industry: Technology Job Function: Engineering Skills: AI Generalist, RLHF, Large Language Model Evaluation, Data Labeling, Prompt Engineering, NLP Salary Currency: USD Salary Min: 63360 Salary Max: 126720 Pay Period: YEAR We are actively recruiting for mid-senior AI Generalists based in Spain. In this remote role, you will execute comprehensive QA evaluation, named entity recognition, and computer vision annotation. You will ensure strict annotation guidelines compliance while collaborating with top-tier AI labs. This full-time position requires deep expertise in AI/ML workflows and a passion for refining LLM training pipelines.

Core Responsibilities and AI/ML Workflows

Candidates applying for AI Generalist jobs in Spain will engage in diverse AI/ML training workflows. Your daily tasks will include prompt evaluation, content safety labeling, and crafting high-quality responses for RLHF. You must possess a strong command of both English and Spanish to evaluate multilingual models accurately. Experience with data annotation vendors, tech startups, or BPOs is highly valued. We offer flexible remote work environments suitable for both entry-level and senior experts dedicated to advancing artificial intelligence.

Frequently Asked Questions

  • Q: What is an AI Generalist, and what do they do?

    An AI Generalist is a versatile professional who handles multiple aspects of AI data operations, including data labeling, RLHF, prompt evaluation, and QA evaluation to improve large language model performance.

  • Q: Are these AI Generalist jobs in Spain fully remote?

    Yes, all our AI Generalist positions for 2026 at Rex.zone are 100% remote, allowing you to work from anywhere in Spain as a full-time, contract, or freelance professional.

  • Q: What skills are required for AI/ML training pipelines?

    Key skills include expertise in NLP, computer vision annotation, content safety labeling, and strict annotation guidelines compliance. Strong analytical abilities for large language model evaluation are essential.

  • Q: How do I apply for AI Generalist roles at Rex.zone?

    You can apply directly through the Rex.zone platform. We are continuously hiring for entry-level to senior positions to support leading AI labs and tech startups globally.

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We believe exceptional intelligence deserves exceptional pay. Our platform consistently offers rates above the industry average, rewarding experts for their true value and real impact on frontier AI. Here, your expertise isn't just appreciated - it's properly compensated.

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