Senior Executive – Decision Modelling – London

Overview

As a Senior Executive in Decision Modelling, you shape strategic, commercial and financial decisions for major clients by building robust models and analytics. You work within EY-Parthenon to translate complex data into clear insights that inform decisions across transactions, financing and planning. You lead delivery, manage client relationships, and coach colleagues while solving ill-defined problems amid uncertainty. This role puts you at the heart of client decision-making, offering broad exposure across industries and opportunities to drive impact with AI-enabled tooling.

Pay / Benefits

• hybrid and flexible working
• travel opportunities
• global network
• inclusive and empowering culture
• professional development opportunities
• state-of-the-art methodologies and technology-enabled solutions

Responsibilities

• Design, build, test and document financial models, analytical frameworks or decision-support tools.
• Collaborate with clients to define decisions, scope support, and shape the modelling approach.
• Plan and manage work, translate scope into practical delivery, and own priorities, timing and budget.
• Use modelling to develop insights, assess options, and identify risks and opportunities.
• Lead or facilitate client meetings, validate information, present findings and align on requirements.
• Deliver assignments independently or lead a small team, coach juniors, and ensure quality.
• Manage delivery governance, documentation and handover, guiding clients on outputs and escalation needs.
• Gather feedback to inform development priorities and provide constructive coaching to others.
• Contribute to proposals, pitches, and client opportunities, and support capability-building initiatives.

Key requirements

• Relevant financial modelling experience with Excel proficiency
• Judgement to compare modelling options and selectAppropriate approaches
• Curiosity about organisational drivers and business effects on decision-making
• Experience delivering for clients, managing expectations and relationships
• Attention to detail, problem-structuring skills, option assessment
• Clear written and verbal communication and ability to present for action
• Experience managing quality, scope, timing and budget and escalation of risks
• Collaborative mindset and ability to coordinate specialist input

• collaborative
• strong communication
• problem-solving
• financial modelling
• Microsoft Excel
• Power Query

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