Updated: 15 March 2026

Freelance | 8–20 hrs/week | Remote (EU/UK)

Are you an experienced Lean or Six Sigma Black Belt looking to leverage your process improvement expertise in an innovative way? Do you have 8 to 20 hours per week available alongside your current work or consulting commitments? Join 10x.team to shape how advanced AI systems understand, reason about, and apply Lean and Six Sigma methodologies.

What you’ll be doing

At 10x.team, we connect top fractional and freelance professionals with world-leading AI labs, driving practical advancements in large-scale AI models. In this impactful and flexible remote role, you will:

• Review and refine AI-generated responses on Lean, Six Sigma, process improvement, operational excellence, and related topics

• Evaluate outputs for technical accuracy, methodological soundness, and real-world applicability

• Draft realistic business scenarios involving Lean transformations, Six Sigma projects, root cause analysis, waste reduction, process mapping, and continuous improvement

• Create scenario variations from perspectives such as Lean consultant, Black Belt project leader, process owner, executive sponsor, or frontline staff

• Identify gaps in reasoning, superficial application of methodologies, or misinterpretation of Lean/Six Sigma principles

Your expertise will directly enhance how AI understands, reasons about, and applies Lean/Six Sigma frameworks, ensuring content reflects practical, industry-standard approaches. This role is not about running improvement projects yourself, but about defining how AI systems approach real-world operations management scenarios.

Who this is for

We are looking for:

• Certified Lean and/or Six Sigma Black Belt professionals (consultants, trainers, project leads, operational excellence managers, etc.)

• Based in the EU or UK

• Experienced in process improvement, root cause analysis, value stream mapping, and driving sustainable operational change

• Skilled at identifying weak process analysis, flawed improvement logic, or misapplication of Lean/Six Sigma tools

• Available for 8–20 hours per week, with the ability to start within weeks

This is a fully remote, flexible freelance role designed to fit alongside your other professional commitments.

Why join?

• Flexible hours, fully remote

• Advance Lean/Six Sigma methodologies in widely adopted AI models

• Tangible impact on the next generation of AI tooling

• Clear deliverables, structured onboarding

• Potential for ongoing collaboration based on performance

Screening process

Our process is simple and efficient:

• A brief AI-based interview

• A short written exercise focusing on Lean/Six Sigma scenario evaluation

• Compliance verification of your credentials

If successful, you’ll be onboarded and can start soon after.

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