Decision Modelling Lead: Strategy, Finance & Impact

Ernst & Young Advisory Services Sdn Bhd; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

EY-Parthenon, part of EY, London, seeks a Decision Modelling Assistant Director to lead complex engagements and steer high-impact strategic and financial decisions for major corporates. You will combine deep financial modelling with commercial judgement, guiding teams and client relationships to drive value.

Role offers hybrid working with UK and international project exposure, travel flexibility, and opportunities to shape the practice and adopt AI responsibly across engagements.

Qualifications

• Deep financial modelling expertise and ability to scope, challenge and assure complex work.
• Strong commercial instinct and relationship-building to convert opportunities.
• Experience leading projects to resolve complex business problems.

Responsibilities

• Lead engagements across the full lifecycle, including scoping, design and delivery.
• Co-develop complex solutions with clients and lead senior relationships.
• Actively manage engagement quality, risk, scope and economics.

Skills

Financial modelling

Commercial acumen

Project leadership

Stakeholder management

Data analysis

Education

ACA/ACCA or finance qualification

Tools

Power BI

Power Query

VBA

Job description

EY-Parthenon, part of EY, London, seeks a Decision Modelling Assistant Director to lead complex engagements and steer high-impact strategic and financial decisions for major corporates. You will combine deep financial modelling with commercial judgement, guiding teams and client relationships to drive value.

Role offers hybrid working with UK and international project exposure, travel flexibility, and opportunities to shape the practice and adopt AI responsibly across engagements.