PwC

Operational Technology Cybersecurity – Infrastructure Specialist

PwC

full-time

Posted on:

Location Type: Office

Location: Olivos • Argentina

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Tech Stack

CloudCyber SecurityFirewalls

About the role

  • The OT Cybersecurity & Infrastructure Specialist is responsible for designing, implementing, securing, and maintaining IT-OT infrastructures that enable safe, reliable, and efficient industrial operations.
  • The role focuses on protecting control environments through secure-by-design architectures, Purdue Model segmentation, and end-to-end visibility using advanced OT monitoring platforms.
  • Design, implement, and maintain secure IT-OT infrastructure ensuring reliability, performance, and cyber resilience.
  • Provide expert technical support and resolve complex IT-OT integration and security issues to minimize downtime.
  • Maintain a comprehensive asset inventory (wired, wireless, and IIoT) for visibility and configuration management.
  • Act as a subject matter expert (SME) in OT security and infrastructure lifecycle management.
  • Develop, implement, and enforce cybersecurity policies and standards in alignment with SANS, IEC 62443, NIST, and CIS frameworks.
  • Conduct security assessments, audits, and compliance reviews across control networks and critical systems.
  • Integrate IDS/IPS and SIEM solutions to monitor and detect OT-specific cyber threats.
  • Utilize OT cybersecurity monitoring tools (e.g., Dragos, Nozomi, Claroty, Armis) for continuous threat visibility and anomaly detection.
  • Use network and infrastructure monitoring platforms (e.g., SolarWinds, Zabbix, NetBrain) for performance tracking, topology mapping, and proactive incident management.
  • Lead secure OT migration initiatives for modernization or technology upgrades.
  • Design greenfield OT environments with security integrated from concept to commissioning.
  • Assess and retrofit brownfield environments, addressing vulnerabilities in legacy systems.
  • Develop and execute migration roadmaps aligned with Purdue Model (Levels 0–5) for secure network segregation.
  • Collaborate with engineering and operations teams to ensure secure deployment of new OT technologies.

Requirements

  • Education: Bachelor’s or Master’s in Computer Science, Electrical, Electronics, or Industrial Engineering.
  • Experience: 5–10 years in OT/ICS cybersecurity, network engineering, or industrial automation.
  • Certifications (Preferred): SANS GICSP, GRID, GIAC ICS Defender, GCIP CISSP, CISM, CEH, CompTIA Security+/CySA+ ISA/IEC 62443 Expert/Practitioner Cisco CCNP Security, Palo Alto PCNSE, CWSP/CWNA (for wireless OT).
  • Technical Competencies: Deep expertise in ICS/SCADA, DCS, and PLC systems (e.g., Siemens, Rockwell, Schneider).
  • Proficient in industrial protocols (Modbus, DNP3, OPC-UA, Profinet, EtherNet/IP).
  • Experience with network segmentation and Purdue Model architecture (Levels 0–5).
  • Skilled in OT visibility and monitoring tools: Dragos, Nozomi Networks, Claroty, Armis (for OT cybersecurity and asset discovery). SolarWinds, Zabbix, NetBrain (for network performance monitoring and topology mapping).
  • Hands-on experience with firewalls, IDS/IPS, SIEM, NAC, and VPNs in OT/industrial environments.
  • Knowledge of wireless OT security, IIoT device hardening, and cloud-connected OT visibility.
  • Familiar with risk management, threat modeling, and incident response for OT systems.
  • Soft Skills: Strong analytical and problem-solving mindset. Excellent communication and stakeholder coordination skills. Ability to balance security rigor with operational uptime. Commitment to security-by-design, documentation, and continuous improvement.
Benefits
  • All qualified applicants will receive consideration for employment at PwC without regard to ethnicity; creed; color; religion; national origin; age; disability; neurodiversity; sexual orientation; gender identity or expression; marital; or any other status protected by law.
  • PwC is proud to be an inclusive organization and equal opportunity employer.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
OT cybersecuritynetwork engineeringindustrial automationICS/SCADADCSPLC systemsindustrial protocolsnetwork segmentationPurdue Model architecturerisk management
Soft Skills
analytical mindsetproblem-solvingcommunicationstakeholder coordinationsecurity-by-designdocumentationcontinuous improvement
Certifications
SANS GICSPGRIDGIAC ICS DefenderGCIP CISSPCISMCEHCompTIA Security+CySA+ISA/IEC 62443 ExpertCisco CCNP Security