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Ernst & Young

Global professional services: consulting, assurance, tax

UKI Technology Consulting - Cyber Security Architect, Manager

Security Engineering & ArchitectureUpdated on Nov 14
Full-timeDublin, IrelandNo salary listed

About the Job

Requirements

  • Demonstrable experience designing and reviewing enterprise security architectures.
  • Practical experience defining technical controls and assessing security risks in complex solution designs.
  • Experience across both information technology and operational technology environments, including the security dependencies between enterprise and operational systems.
  • Ability to translate regulatory, risk and compliance requirements into practical architecture principles, controls and designs.
  • Experience with security architecture frameworks or recognised architecture methods, including SABSA or equivalent.
  • Knowledge of IEC 62443 and secure architecture in industrial or operational environments.
  • Experience supporting architecture governance, cloud transformation, infrastructure modernisation or security-tool deployment.
  • Relevant security or architecture certification such as CISSP, CISM, SABSA or equivalent.
  • Strong verbal and written communication and project management skills.
  • Organisational and problem-solving skills, with attention to detail.
  • Experience drafting proposals, bids and tender responses.
  • Working knowledge of Microsoft PowerPoint, Word, Excel and online research tools.
  • Ability to collaborate with global and multifunctional teams.
  • Ability to prioritise, work to tight deadlines and manage one's own caseload.
  • Ability to learn quickly and work well under pressure.
  • Ability to listen attentively and express complex issues concisely to clients.
  • Ability to lead and motivate teams, including project management of consultancy projects.
  • Ability to participate in implementing or deploying tools, processes and best practices to improve knowledge sharing and raise security awareness among team members.

Responsibilities

  • Provide advisory and technical leadership to help clients improve their cybersecurity posture in response to changing cybersecurity threats.
  • Work closely with clients to advise on, design, build, deploy and test practical security solutions.
  • Design and review secure enterprise technology solutions spanning information technology and operational technology.
  • Translate regulatory, risk and compliance requirements into practical security architecture principles, control requirements and implementable solution designs.
  • Work with technical and non-technical stakeholders to challenge designs, identify security risks and support proportionate remediation decisions.
  • Assess current information technology and operational technology architectures, assets, interfaces, remote-access paths, data flows, dependencies, zones and conduits.
  • Develop secure current-state, target-state and solution architectures for enterprise information technology and operational technology environments.
  • Review technology and project designs, identify security risks and recommend proportionate remediation options balancing security, safety, operational continuity, cost and delivery constraints.
  • Apply security architecture standards and frameworks, including IEC 62443 concepts such as zones, conduits and Security Levels, to operational technology architecture and control design.
  • Define security controls across identity, privileged access, networks, endpoints, cloud platforms, applications, data, industrial systems, engineering workstations, servers, sensors, monitoring platforms and third-party services.
  • Evaluate information technology and operational technology integration points and define network segmentation, access control, remote-access, monitoring, logging and data-flow requirements.
  • Design and review industrial security monitoring and sensor architectures, including sensor placement, coverage, connectivity, integration and operational support requirements.
  • Assess architecture risks arising from legacy technologies, vendor dependencies, constrained patching, high-availability requirements and complex enterprise or industrial environments.
  • Produce implementation-ready security architecture documentation, including security architecture documents, high-level and low-level designs, architecture diagrams, control matrices, risk assessments, decision records and implementation requirements.
  • Work with control-system engineers and operations, infrastructure, application, cloud, security, risk, compliance and third-party stakeholders to resolve design issues and technical constraints.
  • Support security design governance, architecture review boards, security assurance, testing, risk-acceptance and design-approval decisions.

Desired Qualifications

  • CISSP or CISM certification is an advantage.
  • Relevant certification in IEC 62443, industrial cybersecurity, CISSP, CISM, SABSA or equivalent.

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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