Senior OT Security Architect

EY

Porto

On-site

EUR 55,000 - 85,000

Full time

14 days+

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Job summary

EY is seeking an OT cybersecurity professional to strengthen the security of industrial environments across critical infrastructure sectors. You will conduct maturity and risk assessments, review ICS/SCADA systems, and help define transformation roadmaps while collaborating with multidisciplinary teams across Energy, Utilities, Manufacturing and Transportation.

The role emphasizes working on international projects, regulatory compliance, and deployment of monitoring and threat detection

Qualifications

Experience in Cybersecurity/OT within industrial environments.
Knowledge of IEC 62443, NIST CSF and CIS Controls (OT context).
Fluent in English, both written and spoken.

Responsibilities

Conduct OT cybersecurity maturity assessments and risk analyses against industry standards.
Assess ICS/SCADA/DCS/IIoT environments and identify gaps in security controls.
Support the definition of OT cybersecurity strategies and transformation roadmaps.
Review industrial network architectures and secure remote access solutions.
Assist in regulatory compliance efforts (NIS2, IEC 62443).
Perform OT security assessments and vulnerability analyses.
Support deployment of OT security monitoring and threat detection solutions.
Collaborate with engineering, operations and IT teams to minimize operational impact.
Contribute to incident response planning and cyber resilience initiatives.
Prepare client deliverables and executive reports.