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Ernst & Young

Global professional services: consulting, assurance, tax

Associate Director - AI Enterprise Architect, EY-Parthenon

Technology & Systems ConsultingPosted on Nov 12
Full-timeLondon, UKNo salary listedIn-person

About the Job

Requirements

  • Strong enterprise architecture experience across AI, data, applications, integration, infrastructure, security and operating-model considerations.
  • A practical understanding of generative AI, machine learning, foundation models, retrieval architectures, orchestration, agentic patterns and modern data platforms.
  • Experience designing AI or machine-learning systems that progressed beyond proof of concept into sustained production use.
  • Practical familiarity with Python and AI development approaches sufficient to review technical designs, guide prototyping efforts and challenge technical assumptions.
  • Experience with cloud-native and hybrid environments, including at least one of AWS, Microsoft Azure or Google Cloud Platform.
  • Working knowledge of modern data platforms such as Databricks or Snowflake, and integration with core enterprise systems.
  • A strong understanding of AI unit economics and the difference between a successful demonstration and a system that is affordable, scalable and supportable in production.
  • Familiarity with emerging AI architectures, agentic systems and enterprise AI design patterns.
  • Strong answer-first communication and the ability to structure complex technical questions under demanding deadlines.
  • The ability to explain an architecture decision, technical risk or investment requirement clearly to a non-technical executive audience.
  • Evidence of constructively influencing senior stakeholders, including where the appropriate recommendation is to stop, redesign or defer an initiative.
  • The confidence to form a defensible view using incomplete information while being clear about assumptions and limitations.
  • Experience operating under compressed transaction or executive decision-making timelines.
  • A collaborative and low-ego working style, with a willingness to operate as an integrated member of a strategy engagement rather than as an external technical authority.
  • The ability to translate technology choices into implications for value, cost, scalability, risk, competitive differentiation and strategic control.
  • At least 7 years spanning technology strategy, AI advisory, enterprise architecture, solution architecture, technology consulting or related disciplines.
  • Hands-on experience designing AI architectures or machine-learning systems that reached and remained in production.
  • Experience working at the intersection of business strategy and technology, helping senior executives translate AI opportunities into investment priorities, transformation initiatives and measurable business outcomes.
  • Demonstrable enterprise architecture experience across cloud-native or hybrid technology environments.
  • Experience integrating AI and data solutions with enterprise systems such as ERP, CRM, supply-chain, manufacturing or other operational platforms.
  • Practical familiarity with Python and AI development approaches, including orchestration, agent, retrieval and evaluation approaches.
  • Experience assessing the scalability, security, reliability, performance and cost of AI systems.
  • Strong written and verbal communication skills, including experience presenting technical recommendations to senior stakeholders.
  • Ability to work effectively across multidisciplinary teams comprising strategy consultants, engineers, data scientists, commercial specialists and sector experts.
  • Ability to deliver high-quality answers under tight and sometimes transaction-driven deadlines.
  • Ability to provide vendor-neutral advice and objectively evaluate competing technologies, platforms and delivery models.
  • A master's degree or equivalent in Computer Science, Engineering, Mathematics, Data Science or a related analytical discipline from a reputable university.

Responsibilities

  • Provide strategic and technology advisory leadership across AI strategy, transformation and transaction engagements, with support from Directors and Partners.
  • Advise clients on AI target architectures and evaluate architectural options against business objectives, value creation opportunities, investment constraints and risk considerations.
  • Structure ambiguous client problems into hypotheses, analyses and actionable recommendations.
  • Design end-to-end AI target architectures spanning data foundations, models, orchestration, integration, security, enterprise systems and the operating model required to run them.
  • Assess AI, technology and data maturity of enterprises, including the credibility of data/AI claims and the durability of application landscapes, infrastructure and data to scale AI; translate findings into executive recommendations, investment priorities and transformation roadmaps.
  • Define AI solutions for targeted use cases or complex AI products spanning value streams and underpinned by existing enterprise IT and data landscapes; prioritize use cases based on value, feasibility, scalability and strategic relevance.
  • Develop board-ready recommendations on AI-enabled growth, productivity and transformation opportunities.
  • Develop the technical and economic case for AI, including inference and token costs, infrastructure requirements, cost-to-serve, gross-margin sensitivity and build, buy or partner decisions.
  • Advise on AI governance, security, data residency, responsible AI and relevant regulatory requirements, including the EU AI Act and evolving UK regulatory environment.
  • Guide prototyping teams and use prototypes to test strategic, operational, commercial and technical assumptions.
  • Define architecture standards, reference patterns, assessment frameworks, strategies and reusable technical assets for the practice.
  • Communicate strategic implications, investment trade-offs, architecture decisions and technical risks clearly to boards, investment committees, executive teams and non-technical stakeholders.
  • Support proposals, technical workshops and pursuit meetings, acting as a credibility anchor on complex AI questions; lead executive workshops, client problem-solving sessions and strategic discussions.
  • Coach colleagues and build AI architecture capability across EY-Parthenon and the wider EY organization, including engagement teams comprising strategy consultants and technical specialists.

Desired Qualifications

  • Experience supporting technology, digital or AI diligence engagements, including assessing scalability, risks, capability gaps and value creation opportunities.
  • Experience evaluating AI-enabled products, software businesses, data assets or technology-led investment theses, translating technical findings into commercial and strategic implications.
  • Sector expertise in one or more of Media, Retail & Consumer Products, Industrials, Automotive, Technology or Software, with an understanding of key technology and AI value drivers in those sectors.
  • Experience advising on responsible AI, AI governance, model risk, AI security, regulatory compliance or technology assurance.
  • Experience with major enterprise technology platforms, including ERP, CRM, supply chain, manufacturing and data platforms such as SAP, Oracle, Salesforce, Snowflake, Databricks or Palantir, and understanding of their role in enabling enterprise AI adoption.
  • Experience developing reusable assessment frameworks, architecture patterns, strategic recommendations or reference assets that accelerate client delivery and capability building.
  • Ability to coach and mentor, developing the technical and commercial confidence of specialist and non-specialist colleagues.
  • Ability to build trusted relationships across clients, EY-Parthenon and the wider EY organization, both in the UK and internationally.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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