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Working at EY UK

  • Company employees
    400000
  • Gender diversity (m:f)
    52:48

Hiring in

  • Global

Office locations

Join EY-Parthenon as a Senior Executive (Manager) - Operational Decision Intelligence in London. In this full-time role, you will lead delivery throughout assignment lifecycles, manage project teams, and work directly with clients to design complex models and algorithms that address strategic and operational challenges.

Requirements

  • Degree in Operational Research or equivalent in a numerate or analytical subject.
  • Experience applying analytical and modelling techniques to support optimisation, workforce planning, or complex operational decision-making.
  • Technical familiarity in optimisation, analytics, or workforce modelling and forecasting.
  • Experience managing projects through the project lifecycle.
  • Preferred: Experience in SQL Server, MS Excel, VBA, R, Python, visualisation tools, and React.

Skills & Responsibilities

  • Operational Research & Modelling: Apply techniques such as discrete event simulation, mathematical programming, and forecasting to solve complex operational challenges.
  • Project Management: Lead team delivery of projects, manage performance against plans, and supervise junior team members.
  • Client & Stakeholder Management: Work directly with clients to define requirements, build models, and translate solutions into easy-to-understand outputs.
  • Technical & Analytical Skills: Utilise optimisation, analytics, and workforce modelling to support business decisions and identify AI opportunities.
  • Potential transition routes: People from data science, management consulting, or advanced analytics roles may bring strong quantitative and client-facing skills, alongside meeting the required operational research and project management experience.

Job description

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.

Join EY and help to build a better working world.

Senior Executive – Operational Decision Intelligence – London

The opportunity

At EY-Parthenon, our unique combination of transformative strategy, transactions, tax and corporate finance delivers real-world value – solutions that work in practice, not just on paper. Benefiting from EY’s full spectrum of services, we’ve reimagined strategic consulting to work in a world of increasing complexity. With deep functional and sector expertise, paired with innovative AI-powered technology and an investor mindset, we partner with CEOs, boards, private equity and governments every step of the way.

EY-Parthenon’s Operational Decision Intelligence team is a rapidly growing part of our business that combines deep Operational Research, modelling and analytics expertise with a commercial consulting mindset to help clients address complex strategic and operational challenges.

We work with major corporate clients, government departments and other public sector bodies, advising them on complex strategic, commercial and operational decisions. Our projects often involve managing multiple stakeholders and high degrees of complexity and uncertainty. Decision making in this environment requires strong client management and communication skills, in addition to a rigorous analytical mindset and excellent data handling skills.

Although the team is largely London-based, we operate as a national team and many of our engagements involve multinational clients. This role will most likely require some travel within the UK and could require overseas working from time to time.

This role will specifically require Operational Research skills with experience in optimisation and/or workforce modelling and analytics.

Your Key Responsibilities

  • Leading delivery throughout the life-cycle of an assignment – requirements definition, specification, data collection, solution design, development, testing, documentation, implementation and user training.
  • Leading the team delivery of projects, managing and supervising the project team and supporting junior team members to develop their skills and technical expertise.
  • Work directly with clients to design and build complex models/algorithms and employ insightful visualisation to translate the solution into easy-to-understand outputs.
  • Identify opportunities for utilising AI to innovate and/or drive efficiency within projects.
  • Manage clients’ expectations in relation to deliverables.
  • Identify and manage risk on the assignment, involving Director / Partner appropriately in its resolution.
Apply now
EY UK

Senior Executive (Manager) - Operational Decision Intelligence - London

London
Field-based
  • Support senior team members in developing new business and offerings.
  • What we look for:

    • A strong academic background, e.g. Degree in Operational Research or equivalent in a numerate or analytical subject.

    • Technical familiarity in one or more of the following areas:

    • Optimisation and analytics (e.g. network, supply chain or resource allocation)
    • Workforce modelling and analytics (e.g. demand, supply and capacity forecasting)
    • Direct experience with Operational Research techniques such as discrete event simulation, mathematical programming, system dynamics, forecasting or scenario analysis.

    • Experience applying analytical and modelling techniques to support optimisation, workforce planning or other complex operational decision-making challenges.

    • Strong understanding of business issues and how advanced analytics can be used to support businesses to make better decisions.

    • Experience in managing projects, from defining requirements, designing project plans and managing performance against plan through the project lifecycle.

    • Effective communication skills to be able to work collaboratively with a team, in a concerted effort towards delivering work products of the highest standard as well as coaching team members to get the most out of them.

    • Previous evidence of working with clients and model users to identify their particular needs, and evidence of problem-solving previous client problems.

    Ideally, you'll also have some of the following:

    • Experience in SQL Server, MS Excel and VBA. Experience of modelling languages such as R or Python is a plus
    • Experience of employing visualisation tools to display outputs in a compelling way.
    • Experience of user interface development e.g. using React.
    • Sector experience in one or more of the following areas:
    • Government
    • Consumer products
    • Logistics
    • Utilities
    • Oil & Gas
    • Some experience in coaching more junior staff to maximise performance.

    What we offer you

    At EY, you will be part of a global network of professionals working on high-profile and impactful projects. We offer:

    • Continuous learning and development opportunities

    • Exposure to a wide range of industries and economic issues

    • A collaborative and inclusive working environment

    We will fuel your ambition and potential with future-focused skills development that equips you with state-of-the-art methodologies and technology-enabled solutions. With more than 25,000 people in 150 countries, you will join an inclusive and empowering culture that values your uniqueness, prioritizes your wellbeing, and immerses you in the diverse thinking and cross-cultural experiences necessary to help deliver impact to clients across the globe and to help build a better working world. Learn more about careers at EY-Parthenon.

    Are you ready to shape your future with confidence? Apply today.

    To help create the best experience during the recruitment process, please describe any disability-related adjustments or accommodations you may need.

    EY | Building a better working world

    EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.

    Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.

    EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

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