Cyber - Operational Technology - Senior - Consulting

Location: Anywhere in Country

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The opportunity

Industrial and critical infrastructure organizations are strengthening cybersecurity as Operational Technology environments become more connected and exposed to changing threats. They need professionals who can understand industrial systems, work across engineering and cybersecurity teams, and turn technical analysis into practical improvements.

As an OT Cybersecurity Senior or Senior Consultant in Technology Consulting, you will deliver and lead defined workstreams across OT security assessments, architecture, strategy and implementation initiatives. You will work directly with clients, prepare high-quality technical and executive deliverables, and help improve the security and resilience of industrial environments.

Your key responsibilities

• Conduct OT cybersecurity maturity assessments, risk assessments, gap analyses, security audits, architecture reviews and vulnerability assessments.
• Assess industrial environments that may include ICS, SCADA, DCS, PLC, RTU, HMI, SIS and IIoT technologies, industrial networks and supporting infrastructure.
• Review OT network architectures, segmentation approaches, zones and conduits, firewall rules, secure remote access, system hardening, asset visibility and monitoring capabilities.
• Support the development of OT cybersecurity strategies, roadmaps, policies, standards, procedures, reference architectures and implementation plans.
• Design and support implementation of OT security solutions while considering safety, availability, reliability and operational constraints.
• Apply frameworks and standards such as ISA/IEC 62443, NIST SP 800-82 and NIST CSF. Apply sector-specific guidance when relevant.
• Participate in and facilitate client interviews, workshops and technical discussions with engineering, operations, maintenance, IT and cybersecurity stakeholders.
• Prepare clear client deliverables, technical documentation, architecture diagrams, executive presentations and prioritized recommendations.
• Lead defined workstreams and support project planning, status reporting, risk and issue tracking, resource planning and budget monitoring.
• Collaborate with engagement leadership and multidisciplinary teams. Guide and mentor junior team members where appropriate.
• Contribute to proposals, client presentations, reusable assets, thought leadership and identification of additional client needs.
• Stay current on OT threats, vulnerabilities, industrial attack techniques, technologies and regulatory developments.

Skills and attributes for success

• Strong understanding of OT and ICS cybersecurity principles, industrial control environments and the operational impact of security decisions.
• Working knowledge of industrial network architectures, common protocols and controls such as segmentation, firewalls, IDS or IPS, allowlisting, monitoring and secure remote access.
• Ability to analyze technical information and develop practical recommendations for technical and nontechnical audiences.
• Strong written and verbal communication, stakeholder management, analytical and problem-solving skills.
• Ability to manage competing priorities and deliver high-quality work in a collaborative consulting environment.
• Ability to work with cross-functional teams spanning engineering, operations, IT and cybersecurity.

To qualify for the role, you must have

• Bachelors degree in Cybersecurity, Computer Science, Information Technology, Engineering, Industrial Automation or a related field, or equivalent relevant experience.
• Approximately 3 or more years of relevant cybersecurity, OT security, industrial automation or related experience. HR should calibrate the final threshold to the approved U.S. rank and compensation structure.
• Experience performing or supporting OT cybersecurity assessments, architecture reviews, risk analysis, security design or implementation activities.
• Knowledge of OT and ICS environments and systems such as SCADA, DCS, PLC, RTU or HMI.
• Familiarity with ISA/IEC 62443, NIST SP 800-82, NIST CSF or comparable cybersecurity guidance.
• Experience producing professional reports, presentations, technical documentation or architecture artifacts.
• Ability and willingness to travel based on client and project needs.

Ideally, youll also have

• Hands-on experience with OT monitoring, asset visibility or threat detection platforms such as Nozomi Networks, Claroty, Dragos, Armis, Microsoft Defender for IoT, Cisco Cyber Vision or comparable technologies.
• Experience in power and utilities, oil and gas, manufacturing, chemicals, mining, transportation, water or other critical infrastructure sectors.
• Experience with industrial protocols such as Modbus, DNP3, OPC, OPC UA, EtherNet/IP, CIP, PROFINET or IEC 61850.
• Experience with OT incident response, vulnerability management, security testing, threat modeling or transition-to-operations activities.
• Relevant certifications such as GICSP, ISA/IEC 62443, GRID, CISSP, CISM, CISA, Security+, CCNA or comparable credentials.

What we look for

We are looking for professionals who combine OT and ICS technical credibility with practical consulting judgment. Successful candidates communicate clearly, collaborate across engineering, operations and cybersecurity teams, and deliver high-quality outcomes in complex industrial environments.

What we offer you

At EY, we harness our collective strength to empower you to shape your future with confidence through professional growth, personal fulfillment and an inclusive culture. Learn more at ey.com/us/careers.

• The salary range for this job is:

• New York City, Boston, and Washington DC Metro Areas, Washington State, and Southern California offices - $125,800 to $209,700

• Bay Area California offices - $131,100 to $218,500

• All other offices locations in the US, including Sacramento - $104,800 to $192,200

• Individual salaries within these ranges are determined through a wide variety of factors including but not limited to education, experience, knowledge, skills and geography. In addition, our Total Rewards package includes medical and dental coverage, pension and 401(k) plans, and a wide range of paid time off options.

Are you ready to shape your future with confidence? Apply today.

• To make the most of your application experience, please limit yourself to two applications within a six-month period.
• EY accepts applications for this position on an on-going basis.
• For those living in California, please click here for additional information.
• At EY, our values set the foundation for how we work and the behaviors we expect of our people. Any misrepresentation or falsification of information or lack of integrity at any point in the recruiting process may result in withdrawal of your candidacy, revocation of an offer or immediate termination of employment.

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