Lead Engineer - OT Cybersecurity

We are seeking highly skilled Engineers / / Senior Engineer / Lead Engineer to support the implementation of OT Cybersecurity solutions across utility environment and master control centers. The role involves hands-on deployment, configuration, and integration of cybersecurity technologies, infrastructure design, commissioning, and documentation. Candidates must have a strong background in operational technology (OT), instrumentation, and experience working in high and low voltage substations.

Key Responsibilities

• Design and develop High-Level Design (HLD) and Low-Level Design (LLD) documents for OT cybersecurity infrastructure.
• Perform OT Cybersecurity Gap assessment , risk assessments as per IEC 62443 , NIST and international standards .
• Perform cable routing and physical installation of network and security devices in substations and control centers.
• Deploy, configure, and integrate cybersecurity solutions including Nozomi Networks, Forescout, and Fortinet firewalls.
• Implement and manage Acronis backup solutions for critical OT systems.
• Design and implement a centralized DMZ architecture for secure data exchange between IT and OT networks.
• Review and validate electrical panel drawings and overall electrical design setups for compliance and integration.
• Conduct Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) for all deployed systems.
• Prepare detailed technical reports, test plans, and documentation throughout the project lifecycle.
• Perform commissioning activities including system validation and operational readiness checks.
• Configure KVM switches for remote access and control of OT systems.
• Install and configure VMware ESXi on physical servers.
• Set up and segment virtual machines (VMs) according to network security policies.
• Create and maintain network architecture drawings using Microsoft Visio.
• Assign zones and conduits in accordance with ISA/IEC 62443 standards.
• Identify and document cable routes for all network and power connections.
• Ensure proper labeling and documentation of all installed components.
• Work with HMIs and gateways on Siemens, ABB, and Schneider Electric systems.
• Integrate and configure SICAM SCMS systems and other substation automation platforms.
• Apply instrumentation knowledge to configure and troubleshoot sensors, actuators, and control systems in substations.
• Collaborate with cross-functional teams including network engineers, cybersecurity analysts, and utility operations staff.
• Ensure compliance with industry standards and cybersecurity best practices

Engineering Design (HLD/LLD) & Drawing Development

• Review and validate Single Line Diagrams (SLDs), existing as-built drawings, and brownfield constraints; raise RFIs and propose constructible solutions.
• Validate panel drawings (GA, internal layout, wiring, interconnection, termination schedules, BOM) and ensure “as-built” updates post commissioning.
• OT Cybersecurity Infrastructure Deployment & Integration
• Implement and integrate OT cyber infrastructure components (e.g., industrial firewalls, switches, IDS sensors, secure remote access, logging collectors) according to approved LLD and standards.
• Support network cutovers, IP schemes, VLAN/VRF mapping, routing design inputs, and secure connectivity between substations and central platforms.
• Ensure installations meet required security baselines and customer utility practices (documentation, labeling, ports, hardening inputs).

Testing, FAT/SAT, Commissioning & Acceptance

• Support/lead FAT preparation and execution: test procedures, inspection checklists, configuration verification, and evidence packs.
• Execute SAT / site commissioning, including pre-checks, power-up, connectivity validation, link testing, redundancy checks, punch lists/snags, and final handover.
• Coordinate with OEMs and customer operations for outage windows, access approvals, and acceptance criteria signoffs.

**HSE Documen