Senior OT Security Engineer

About the role

PwC's OT Security Practice is a strategic priority and one of its fastest-growing areas, and it is looking for a Senior OT Security Engineer to join its Cybersecurity team in Athens. The role helps clients protect industrial systems and critical infrastructure from cyber threats, works with global organizations on complex cybersecurity projects, and supports the development of junior team members.

Key responsibilities

• Analyse the architecture and infrastructure of OT environments and co-lead assessments of ICS/OT systems (SCADA, DCS, IIoT), identifying risks and proposing mitigations
• Contribute to the design and implementation of cybersecurity controls for industrial systems
• Support the development of ICS security frameworks based on standards such as ISA/IEC 62443 and NIST SP 800-82
• Take part in cybersecurity projects within broader transformation initiatives, working with client stakeholders and internal teams
• Maintain and improve asset inventories, network diagrams and OT security documentation
• Collaborate with IT, OT and engineering teams to integrate security into operational processes and technology lifecycles
• Research emerging threats, technologies and best practices in industrial cybersecurity
• Mentor junior team members and contribute to knowledge sharing and capability building

Required profile

• Bachelor's or Master's degree in Cybersecurity, Automation, Electronics or Computer Science
• 2-4 years of experience in industrial cybersecurity or related fields
• Fluent in English and Greek
• Strong communication skills, able to engage technical and business audiences
• Passion for OT cybersecurity and advisory work, with a commitment to continuous learning

Required skills

• Practical experience with OT/ICS/IoT systems such as SCADA, PLCs, DCS or IIoT
• Familiarity with industrial protocols (OPC, Modbus, Profinet/Profibus) and vendors such as Siemens, Honeywell, ABB and Schneider Electric
• Understanding of OT cybersecurity concepts (network segmentation, secure remote access, IT/OT convergence, patch management) and common threats
• Knowledge of network devices (switches, routers, firewalls) and OT security standards (IEC 62443, NIST SP 800-82)
• Ability to produce clear technical and non-technical documentation
• Knowledge of IoT technologies is a strong plus; certifications such as ISA/IEC 62443 or GICSP are a plus

What we offer

• A hybrid working model
• Career growth through local and global opportunities
• Continuous learning and professional certifications
• Extra leave days and wellness initiatives