AI Generalist Switzerland 2026

Rex.zone is looking for an AI Generalist to join its 2026 remote hiring wave in Switzerland. The company focuses on building and refining large language models for AI labs and tech startups, and it needs professionals who can turn raw data into high‑performing machine‑learning systems. In this full‑time remote position you will spend each day checking the quality of training data, running named‑entity‑recognition checks, and assessing prompts for both natural‑language and computer‑vision tasks. You will label content, apply safety tags, and make sure every annotation follows strict guidelines. Collaboration happens online with cross‑functional teams, and your work will help scale LLM training pipelines efficiently. To succeed, you must have a solid grasp of AI/ML training workflows and a proven track record with Reinforcement Learning from Human Feedback. Experience in data labeling and evaluating large language models is essential, as is the ability to analyse data quality and enforce annotation standards. The role requires full‑time remote availability and a residence in Switzerland for the 2026 cohort. Candidates with previous experience in tech startups, business‑process‑outsourcing firms, or annotation‑service providers will find their background especially valuable. Rex.zone offers compensation that exceeds typical market rates, a completely remote setup with no commuting, and a culture that places trust and respect at its core. The company promises flexible pacing, personalized support, and long‑term relationships for its AI trainers. What the role asks for: - Deep understanding of AI/ML training workflows - Proven experience with Reinforcement Learning from Human Feedback - Experience in data labeling for LLMs - Experience evaluating large language models - Strong analytical skills for data quality - Ability to follow annotation guidelines compliance - Based in Switzerland for 2026 cohort - Background in tech startups, BPOs, or annotation vendors (nice‑to‑have)