Cybersecurity Engineering Manager / OT Consulting Manager in London

The Opportunity

As a Manager in Cybersecurity, you will leverage diverse ideas and perspectives to deliver technical excellence at global scale and provide relevant insights to our clients. You will play a pivotal role in managing cybersecurity engagements, building client relationships, and leading teams to develop innovative solutions that address complex security challenges.

Location – London, Manchester or Scotland.

Key Responsibilities

• Deliver complex cybersecurity engineering engagements across multiple sites and regions, encompassing IT and OT, ensuring technical excellence with alignment to EY’s standards and client expectations.
• Align security roadmaps to operational priorities, risk appetite and regulatory obligations.
• Deliver engineering delivery and plan and manage scope, schedule, resources and risks.
• Implement security measures from blueprints, including firewall configurations, network segmentation (zones and conduits), VLANs and ACLs, and secure sit‑to‑cloud connectivity.
• Produce engineering artefacts including build standards, configuration baselines and as‑built documentation.
• 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.

Skills and Attributes for Success

• Ability to work and thrive in a fast‑paced, result‑driven environment with the ability to establish credibility and demonstrate expertise quickly.
• Communication skills, both oral and written, tailored to diverse audiences.
• Strong team player who values collaboration and encourages open communication among team members.
• Experience in coaching and developing colleagues.

To Qualify for the Role, You Must Have

• Experience in cybersecurity with onsite experience (OT experience desirable but not mandatory).
• Strong network engineering skills (routing, switching, VLANs, ACLs, NAT), firewall rule base, design/optimisation, and network segmentation.
• Experience implementing secure remote and local access and privileged access (e.g., PAM, jump hosts, PAW).
• Working knowledge of NCSC CAF, EU NIS2, NIST CSF and CCNA/CCNP level networking competence.
• Willingness to travel for client delivery (domestic and international as required).

Ideally, You’ll Also Have

• Experience with major security vendors (e.g., Cisco, Fortinet, Palo Alto) and familiarity with MITRE ATT&CK.
• OT exposure such as SCADA/PLC/HMI basics, OT protocols (e.g., Modbus, DNP3, OPC UA) and IEC 62443.
• Experience coordinating with operations on infrastructure changes such as IP readdressing and re‑cabling.
• Advanced certifications (e.g., CISSP, GICSP, CCNA/CCNP 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 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.

What we look for

We’re interested in people with integrity who can collaborate with people from a diverse range of backgrounds and a growth mindset.