Senior OT Security Engineer

Werea team that transforms vision into tech-enabled reality. We look for those who see technology not just as tools or platforms but as the invisible infrastructure behind strategy performance and growth. We turn bold ideas into scalable secure and human-centered solutions.

SHAPING TOMORROW

Make a real impact today and tomorrow through work that matters. Here you will tackle todays toughest challenges with a future-focused mindset; so our clients turn to us first when it matters most.

Make a real impact

In this dynamic environment we are looking for an ambitious and self-driven Senior OT Security Engineerto join our Cybersecurity team.

PwCs OT Security Practice is a strategic priority and one of the fastest-growing areas of our business with ambitious plans for expansion through targeted hiring alliances and acquisitions.

As a Senior OT Security Engineer youll play a key role in helping clients protect their industrial systems and critical infrastructure from cyber threats. Youll work closely with global organizations contribute to the delivery of complex cybersecurity projects and support the development of junior team members. Youll be part of a high-performing team of Cybersecurity Architecture and Engineering professionals bringing the best of PwC to our clients.

• Analyse the architecture and infrastructure of OT environments across diverse industries and co-lead assessments of ICS/OT systems (e.g. SCADA DCS IIoT) identifying cybersecurity risks and proposing mitigation strategies.
• Contribute to the design and implementation of cybersecurity controls and solutions tailored to industrial systems.
• Support the development and customization of ICS security frameworks based on standards such as ISA/IEC 62443 and NIST SP 800-82.
• Participate in cybersecurity projects as part of broader transformation initiatives collaborating with client stakeholders and internal teams.
• Maintain and improve asset inventories network diagrams and documentation related to OT security posture.
• Collaborate with IT OT and engineering teams to integrate security into operational processes and technology lifecycles.
• Conduct research on emerging threats technologies and best practices in industrial cybersecurity.
• Mentor junior team members providing guidance and support in their technical and professional development.
• Contribute to internal knowledge sharing methodology refinement and capability building within the OT cybersecurity team.

What you bring matters

• Bachelors or Masters degree in Cybersecurity Automation Electronics or Computer Science

• 24 years of experience in industrial cybersecurity or related fields

• Practical experience with OT/ICS/IoT systems such as SCADA PLCs DCS or IIoT through professional roles projects or consulting engagements
• Familiarity with industrial protocols like OPC Modbus Profinet/Profibus etc. and with technologies from major vendors (e.g. Siemens Honeywell ABB Schneider Electric)
• Sound understanding of core OT cybersecurity concepts (e.g. network segmentation secure remote access IT/OT convergence patch management etc.) and common OT cybersecurity threats and attack vectors (e.g. ransomware supply chain attacks remote access exploitation spoofing unauthorized mode changes setpoint/register manipulation firmware attacks etc.)
• Solid knowledge of common network devices (e.g. switches routers firewalls) and their placement in industrial environments
• Familiarity with internationally recognized OT security standards and frameworks (e.g. IEC 62443 / ISA 99 NIST SP 80082)
• Ability to produce clear and structured technical and non-technical documentation for diverse stakeholders
• Knowledge of IoT technologies and architectures is considered a strong plus especially in industrial or edge computing contexts
• Strong communication and interpersonal skills with the ability to engage both technical and business audiences
• Passion for OT cybersecurity and advisory work with a commitment to continuous learning and knowledge sharing
• Experience working collaboratively within multidisciplinary teams

• Professional certifications in ICS/OT security (e.g. ISA/IEC 62443 GICSP) or vendor-specific tools (e.g. Claroty Nozomi) are considered a plus

• General knowledge of cybersecurity frameworks (e.g. NIST-CSF ISO 27000 series)

• Fluent in English and Greek

BRING YOUR BEST EVERYDAY

Your skills integrity and curiosity make the difference. At PwC Greece we match that with an environment that brings out your best every day supported by people who inspire challenge and grow with you.

What we offer goes beyond a competitive package. Its about creating the conditions for you to learn belong and deliver impact. That means:

• Your work life-balance supported by a hybrid working model

• Your creativity sparked in collaborative office spaces

• Your career growing through local and global opportunities

• Your development advanced with continuous learning and professional certifications

• Your well-being cared for with extra leave days and wellness initiatives

• Your perspective valued in an inclusive team where your impact matters

Want to unlock new value by applying your unique perspective and talents At PwC Greece you lead by example. Our standards for quality and care are high and together we surpass them. We redefine possibilities for our clients and communities.

Challenge accepted

Our circle of connection matters - its at the heart of what we do. Click here (PwC life)

All applicants will be acknowledged and treated in the strictest confidenciality.