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Ernst & Young

Ernst & Young

Global professional services: consulting, assurance, tax

Manager – Cybersecurity - Engineering, TC, Uki

Full-Time
No salary listed
Senior, Expert
London, UK+2 more

More locations: Manchester, UK | United Kingdom

In Person
UK Citizenship Required

About the job

Requirements
  • Experience in cybersecurity with a strong track record in security architecture delivery, including IT/OT convergence
  • Advanced Visio skills and fluency with TOGAF or equivalent architecture methods
  • Working knowledge of NIST CSF, IEC 62443, NCSC CAF, EU NIS2, cloud and network fundamentals
  • Willingness to travel for client delivery (domestic and international as required)
  • Must undergo checks in line with Security Check (SC) clearance standards after joining EY
  • Candidates must be a UK national or have been a resident in the UK for a minimum of five years and ensure that they have not spent more than six months outside the UK
Responsibilities
  • Build and maintain strong client relationships and shape clear security outcomes, milestones and measures aligned to regulatory obligations
  • Deliver security architecture work packages and produce high level design and low level design artefacts, data flows and threat models for enterprise and IT/OT converged environments
  • Create cloud security architecture for site-to-cloud connectivity, establishing secure landing zones, segmented network connectivity, identity and secrets management
  • Analyse systems and networks and propose segmentation, secure access methodology and reference designs that engineering teams can implement
  • Enhance governance and compliance by aligning solutions and controls to various frameworks and standards such as NIST 800, ISO 27001 and NIS2
  • Foster a positive team environment by mentoring and coaching junior staff, conducting performance reviews, and contributing to their professional development
  • Support business development activities, including proposal writing and impactful presentations to potential clients
  • Contribute to recruiting, retaining, and training cybersecurity professionals, ensuring a high-performing team
Desired Qualifications
  • Experience supporting security transformation programs and modernisation
  • Experience integrating SOC/MDR, SIEM/SOAR and familiarity with MITRE ATT&CK
  • Experience designing remote and local access models including PAM and ZTNA with identity integration
  • Familiarity with Microsoft cloud security stack including Microsoft Defender for Cloud, Microsoft Entra ID, Microsoft Sentinel and secure connectivity on Azure
  • Advanced certifications such as CISSP, TOGAF or SABSA, Cloud Security e.g. Microsoft SC-100/AZ-500, CCNA or equivalent
  • Ability to obtain and maintain UK Government security clearances

About the company

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

N/A

Total Funding

N/A

Headquarters

Boston, Massachusetts

Founded

1991

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Simplify's Take

What believers are saying

  • EY's January 2026 acquisitions of couniq and Qiado expand public-sector and FAAS consulting.
  • EY's April 2026 agentic AI rollout strengthens audit quality and client delivery speed.
  • EY's Microsoft alliance and AI assurance services attract transformation work from regulated enterprises.

What critics are saying

  • EY paid £105.5 million over NMC Health in 2026, signaling recurring audit liability exposure.
  • KPMG, Deloitte, and PwC relentlessly poach EY partners after the failed 2021 split.
  • Agentic AI standardizes audit workflows by 2028, compressing billable hours and weakening junior leverage.

What makes Ernst & Young unique

  • EY Canvas embeds agentic AI across 160,000 audits with Microsoft Azure, Foundry, and Fabric.
  • EY-Parthenon ties consulting, assurance, tax, and transactions into one global client platform.
  • EY's sector teams, especially banking and capital markets, deepen specialization across regulated industries.

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Benefits

Professional Development Budget

Flexible Work Hours

Remote Work Options

Company News

Yahoo Finance
Aug 31st, 2026
EY commits $100M to bonuses rewarding human skills alongside AI adoption

Ernst & Young's US division is allocating $100 million this fiscal year to bonus payments rewarding employees who demonstrate adaptability, innovation, and judgement. Individual spot awards reach $500, whilst employees or teams making significant contributions can receive between $10,000 and $25,000, five times the previous programme's ceiling. The initiative also covers AI experimentation. "What we recognise signals what we value," said Ginnie Carlier, chief talent and culture officer for EY Americas. The bonuses form part of a broader strategy to reshape employee development across all career levels. Other professional services firms are pursuing similar approaches. KPMG restructured its audit internship this summer to emphasise critical thinking, whilst PwC US introduced training combining AI proficiency with human qualities like empathy. EY reported AI-related revenue grew 30% year-over-year in 2025.

Consultancy.eu
Aug 28th, 2026
EY-Parthenon acquires Dutch digital strategy consultancy SparkOptimus

EY-Parthenon has acquired SparkOptimus, a Dutch digital strategy consultancy founded in 2010. The Amsterdam-based firm employs around 50 consultants and specialises in AI transformation, digital business model redesign and technology-driven transformation. SparkOptimus founders Alexandra Jankovich and Tom Voskes, both former McKinsey consultants, said joining EY-Parthenon will create significant value for clients and staff whilst providing access to broader capabilities. The acquisition marks EY-Parthenon's first European deal since 2021. EY-Parthenon, established in 2014, is EY's strategy consulting and transactions advisory business with around 25,000 professionals globally. Mark Reich, Partner at EY-Parthenon Netherlands, said SparkOptimus' expertise will complement existing capabilities in the Dutch market. The deal closes on 1 September 2026. Financial terms were not disclosed.

Yahoo Finance
Aug 18th, 2026
KPMG and EY win $579M UK civil servants training contract despite consultancy spending pledge

The UK Government has awarded a contract worth up to £456 million to KPMG and EY to train civil servants, the Financial Times reported, citing government procurement tracker Tussell. Under the arrangement, the firms will train officials across various skills areas, including AI, between 2026 and 2028. KPMG's share is capped at £319 million, representing almost a quarter of its total UK advisory net sales from last year. EY's portion is worth £137 million, equivalent to around 13% of its UK consulting revenue. The deal is the largest single contract awarded to Big Four companies since Tussell started tracking records in 2012. The previous record was a £322 million deal between the Foreign Office and PricewaterhouseCoopers in 2012.

Business Insider
Jul 30th, 2026
EY's 'invisible' AI router cuts token costs by 60% by directing queries to cheaper models

EY has introduced an "invisible" AI router to manage internal AI spending, helping cut token consumption by up to 60% since its April rollout. The router sits behind specialised AI tools and directs employee queries to the most appropriate model for each task, rather than defaulting to the most powerful option. Token costs have become a growing concern as AI providers increasingly charge based on usage. EY's AI Pulse survey found that 82% of senior leaders at companies investing in AI were worried about token usage. The router has been deployed on department-specific platforms, including tax and risk functions, though not on the general Microsoft Copilot chatbot available to all staff. EY has also implemented token budgets based on employees' roles and departments. The firm's global consulting AI leader Dan Diasio said companies should focus AI investment on areas with the deepest impact rather than spreading resources thinly.

Yahoo Finance
Jul 29th, 2026
FRC fines EY $1.5M over Made.com audit failures before 2022 collapse

The UK's Financial Reporting Council has fined EY nearly £1.2m and audit partner Julie Carlyle £49,000 for failings in their 2021 audit of Made.com. Both received severe reprimands for breaching international auditing standards regarding going concern and deferred tax assets. The FRC said the auditors relied on management forecasts without sufficient challenge or adequate testing. Made.com, an online furniture retailer that listed on the London Stock Exchange in June 2021, entered administration in November 2022 after reporting a £35.3m loss. EY later disclaimed its opinion on Made.com's 2022 interim statements due to material uncertainty about the company's ability to continue operating.