Business Consulting - Lean Six Sigma Black Belt - Manager

Job Title: Business Consulting – Lean Six Sigma Black Belt – Manager Location: Dublin Available for Work Visa Sponsorship: NO Business Area: Business Consulting - Customer Transformation Contract Type: Full-Time – Permanent   The opportunity Join our Customer Transformation team and help clients radically improve processes across operations to drive value for internal and external customers. You’ll work on exciting projects that transform customer experience, drive sustainable growth, and enhance business outcomes. This is your chance to shape how organisations optimise operations and have a tangible impact on performance.   Your key responsibilities Process Decomposition & Lean Analysis

Lead Lean Six Sigma DMAIC reviews across key client projects Decompose end‑to‑end processes to task level, explicitly defining:

inputs and outputs decision points hand‑offs exception paths Produce Value Stream Maps (As‑Is and To‑Be) with quantified metrics (cycle time, lead time, takt time, capacity utilisation)

Waste Identification & Quantification

non‑value‑added activity bottlenecks and delays duplication and rework

business cases prioritisation of AI agent candidates phased transformation roadmaps

Statistical Analysis

Expert use of statistical tools and hypothesis testing to identify root causes, validate improvements, and predict performance outcomes using:

regression analysis ANOVA correlation analysis Design of Experiments (DOE),

experience applying control charts, process capability analysis (Cp/Cpk), variation analysis to monitor process stability and drive defect reduction

Proficient in analysing large datasets and presenting insights using histograms, Pareto charts scatter plots control charts statistical software such as Minitab, or advanced Excel

Ability to design and execute experiments, develop predictive models, determine sample sizes use data to optimize process performance and operational outcomes.

AI‑Ready Process Design

identify tasks suitable for agent execution define Human‑in‑the‑Loop control points shape agent‑to‑agent and workflow‑to‑agent interactions

standardised auditable scalable across jurisdictions and clients

CoE & Capability Development

Develop reusable Lean artefacts and patterns for repeat client delivery Coach client and EY teams on Lean‑led AI enablement

Skills and attributes for Success

Certified Lean Six Sigma Black Belt Experience delivering multiple Lean Six Sigma Black Belt projects Proven delivery of Lean transformations in complex, regulated environments Strong experience decomposing knowledge‑heavy processes Comfortable working alongside technologists, data engineers, and AI specialists Experience presenting quantified improvement cases to senior stakeholders Strong interpersonal, workshop facilitation skills

What we look for

We’re looking for results driven, innovative, agile thinkers who are passionate about organisation transformation You’ll thrive in a collaborative environment and be driven to make a meaningful impact through inclusive leadership and creative problem-solving.

What working at EY offers We offer a competitive remuneration package. Our comprehensive Total Rewards package includes support for flexible working and career development, and with FlexEY you can select benefits that suit your needs, covering holidays, health and well-being, insurance, savings and a wide range of discounts, offers and promotions. Plus, we offer:

Support and coaching from some of the most engaging colleagues around Opportunities to