About The Position

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. In simple terms: You will assess and improve AI-generated content, ensuring it reflects true Lean/Six Sigma reasoning, authentic process optimization 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.

Requirements

  • 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

Nice To Haves

  • Experienced in AI training or evaluation

Responsibilities

  • Review and refine AI-generated outputs related to Lean, Six Sigma, process optimization, 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

Benefits

  • 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
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