Lean Six Sigma Process Analyst in London

Job Description

Role Overview

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A Lean Specialist for Payments applies continuous improvement and waste-reduction methodologies (such as Lean Six Sigma) to financial transaction workflows, payment processing and dispute management. The consultant will map payment workflows end-to-end, identify inefficiency and manual/repeatable work, and design and embed optimised, automated and cost-efficient processes, while maintaining strict regulatory compliance.

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Core Responsibilities

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Process Optimisation

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• Map payment workflows end-to-end to remove bottlenecks in transaction routing, invoicing and merchant onboarding

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Automation & Error Reduction

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• Identify repeatable administrative tasks in chargebacks or exception handling and implement automated fixes

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Cost Efficiency

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• Lower operational costs for financial institutions or fintech platforms while maintaining strict regulatory compliance

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Data-Driven Analysis

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• Track performance indicators such as transaction processing speed, failure rates and dispute resolution times

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Broader End-to-End Delivery

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• Apply Lean methodology (value stream mapping, waste identification, root cause analysis) across payments operations — from initiation through processing, exception handling, settlement and reconciliation

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• Facilitate workshops with Operations, Technology and Change stakeholders to validate current-state process maps

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• Design and document future-state, optimised process flows, including handoffs, controls and exception paths

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• Produce clear, structured process documentation (SIPOC, swimlane, value stream maps) suitable for both business and technical audiences

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• Work closely with Operations Consultants and Change/Delivery teams to translate findings into actionable improvement roadmaps

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• Present findings and recommendations to senior Operations and Transformation stakeholders

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3. Essential Experience & Skills

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• Proven track record as a Lean Specialist / Lean Six Sigma practitioner within financial services, ideally payments

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• Deep understanding of payments operations, transaction routing, invoicing, merchant onboarding, chargebacks, dispute management and exception handling

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• Strong end-to-end process mapping capability (current-state and future-state), using recognised Lean/process-mapping tools and techniques

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• Experience working within a bank, payments provider or fintech Operations function

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• Excellent stakeholder engagement and workshop facilitation skills across Operations, Technology and Change

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• Strong analytical skills — able to track and interpret performance indicators (transaction processing speed, failure rates, dispute resolution times) and quantify process inefficiency in business terms

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• Sound understanding of regulatory compliance requirements within payments, and ability to design efficiency improvements that maintain compliance

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• Confident, clear written and verbal communication; able to produce board-ready documentation

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• Comfortable working independently and autonomously to deliver against agreed outcomes

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4. Desirable Experience

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• Lean Six Sigma Green Belt / Black Belt certification

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• Experience with payments platforms (e.g. Avaloq, ISO 20022 migration, Faster Payments, SWIFT, card schemes)

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• Prior experience delivering process improvement within a regulated banking environment

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• Familiarity with process mining or workflow analytics tools

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• Experience translating process findings into automation or digitisation business cases

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