Senior Consultant, Cybersecurity, Engineering, TC, UKI

Security Architect – Senior Consultant

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.

At EY, we are committed to building a better working world. Our Cybersecurity Consulting Practice is rapidly expanding, and we are investing in our capabilities to meet the increasing demand for cybersecurity solutions. Join us and be part of a global team of over 13,000 professionals dedicated to delivering cutting‑edge security transformation programs and services.

As a Senior Consultant in Cybersecurity, you will contribute to the delivery of high‑quality security architecture and engineering outcomes for our clients. You will work as part of delivery teams, supporting the design and documentation of secure solutions and providing technical input across a range of cybersecurity engagements.

• Support the design of enterprise and IT/OT converged security architectures, including secure network segmentation and access models.
• Help to produce HLD and LLD artefacts, data flows and threat models for enterprise and IT/OT converged environments.
• Contribute to cloud security architecture designs, including secure landing zones, identity integration, connectivity patterns 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 NIS
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• Support client workshops, design reviews and technical discussions.
• Contribute to internal knowledge sharing, reusable assets and capability development within the Cyber Engineering team.

• Ability to work and thrive in a fast‑paced, result‑driven environment.
• Communication skills, both oral and written, tailored to diverse audiences.
• A proactive learner with a strong interest in developing deeper security architecture expertise.
• Strong team player who values collaboration and encourages open communication among team members.

• Demonstrable experience in cybersecurity or security architecture, ideally in a consulting or enterprise environment.
• Practical experience producing security design documentation and architecture artefacts.
• Solid understanding of:
• Network and cloud fundamentals
• Identity and access management concepts
• Secure system design principles.
• Working knowledge of any cybersecurity framework or standard such as NIST or ISO 27001.
• Experience using architecture and design tools.
• Willingness to travel for client delivery (domestic and international as required).

• Experience supporting security transformation or modernisation programs
• Familiarity with:
• SOC / MDR operating models
• SIEM / SOAR technologies
• MITRE ATT&CK.
• Awareness of modern access management such as PAM and ZTNA
• Exposure to Microsoft security technologies such as:
• Microsoft Sentinel
• Microsoft Entra
• Microsoft Defender for Cloud.
• Certifications such as Microsoft AZ104, AZ500, CCNA, Network Plus or equivalent.
• Ability to obtain and maintain UK Government security clearances.

Please note:

The successful candidate must undergo and pass checks in line with SC (Security Check) clearance standards after joining EY. These checks may include, but are not limited to, verification of identity, right to work in the UK, employment history, proof of address may be required and unspent criminal convictions. 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.

At EY, you’ll have the chance to build a meaningful and fulfilling career, supported by an inclusive culture and cutting‑edge technology. Together, we can create a better working world for all.

We’re interested in people with integrity who can collaborate with people from a…