Updated: 16 April 2026 Freelance | 8–20 hrs/week | Remote (EU/UK)
Are you an experienced Lean / Six Sigma Black Belt who instinctively spots gaps in operational reasoning and understands the complex realities of process improvement and quality management? Do you have 8 to 20 hours per week available alongside your main job or consulting projects? Join us in shaping how AI understands and applies Lean/Six Sigma expertise at scale.
About The Role
10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable Lean / Six Sigma Black Belt professionals based in the EU or UK to enhance the accuracy, depth, and real‑world relevance of AI‑powered process improvement and operational systems.
What You Will Do
* Review and refine AI‑generated outputs related to Lean, Six Sigma, process optimisation, quality control, and the practical aspects of continuous improvement projects
* Evaluate AI responses for operational accuracy, practicality, and compliance with real‑world requirements
* Draft realistic process improvement scenarios based on your direct professional experience
* Create scenario variations from different perspectives (e.g. process owner, Black Belt, client, or project manager)
* Identify gaps, oversights, or weak reasoning in AI‑generated process improvement and quality content
In simple terms: You will assess and improve AI‑generated content, ensuring it reflects true Lean/Six Sigma reasoning, authentic process optimisation methods, and practical improvement approaches. Rather than conducting traditional Lean/Six Sigma projects, you’ll apply your expertise to help AI systems understand and reason about process improvement at scale.
Who You Are
* A senior‑level Lean / Six Sigma Black Belt with significant professional experience within the EU or UK
* Experienced in advising on, planning, and executing Lean/Six Sigma initiatives and continuous improvement strategies
* Skilled at evaluating operational processes, requirements, and compliance
* Comfortable working independently and providing structured, critical feedback
* Available for 8–20 hours per week, with prompt availability
Why Join?
* Flexible, fully remote freelance work that fits your current commitments
* Apply your Lean/Six Sigma expertise in a rapidly evolving, high‑impact AI environment
* Directly contribute to building advanced AI‑based process improvement and operational systems
* Free access to our in‑house AI Academy to further develop your AI skillset
* Clear onboarding, structured tasks, and ongoing opportunities for collaboration
Join us to help shape the process improvement expertise of the world’s most advanced AI models!
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