Lean / Six Sigma Black Belt Expert - AI Trainer - Freelance - 8-20 hrs/week - Remote

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Portugal Remote Contract€187k–€374k / year Posted 30+ days ago

Updated: 07 July 2026 Freelance | 8–20 hrs/week | Remote (EU/UK) Are you an experienced Lean / Six Sigma Black Belt passionate about shaping the future of artificial intelligence? Join the company as a Freelance Lean / Six Sigma Black Belt Expert – AI Trainer and put your process improvement knowledge to work enhancing advanced AI models, all while enjoying the flexibility of remote, project-based work. Key Responsibilities: * Review and refine AI-generated outputs related to Lean methodology, Six Sigma practices, and process improvement * Evaluate the accuracy and practicality of AI…

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