OT PCN Network Engineer (L3 Firewall & Industrial Networks)
First Tek
All India • 1 month ago
Experience: 5 to 9 Yrs
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Job Description
As a Network Engineer specializing in Firewall & Industrial Networks, your role will involve designing, implementing, and supporting secure network infrastructures within Operational Technology (OT) and Process Control Network (PCN) environments. Your responsibilities will include:
- Designing and implementing secure and scalable network architectures for OT / PCN environments
- Providing Level support for complex routing, switching, and firewall-related incidents
- Configuring and troubleshooting enterprise-grade firewalls such as Palo Alto, Cisco ASA, and Fortinet
- Implementing and supporting VPNs, NAT, ACLs, and High Availability (HA) firewall configurations
- Collaborating with engineering, cybersecurity, and infrastructure teams to ensure secure IT-OT network segmentation
- Participating in structured change management processes and ensuring compliance with industrial standards
- Maintaining network documentation, architecture diagrams, and audit records
- Supporting both collocated and remote industrial environments
- Coordinating with Managed Service Providers (MSPs) when required
- Assisting in wireless deployments where applicable
To excel in this role, you should possess:
- 5+ years of experience in Network Engineering
- Minimum 2+ years of experience in OT / Industrial / Process Control Network environments
- Strong hands-on experience in routing and switching
- Strong firewall expertise, with preference for Palo Alto and acceptance of Cisco ASA / Fortinet
- Experience configuring VPNs, NAT, ACLs, and HA firewalls
- Solid understanding of OT and IT network segmentation principles
- Experience working in structured, process-driven support models
- Exposure to compliance and change management in regulated environments
Preferred skills include experience with Palo Alto Panorama, exposure to Cisco WLC or Aruba wireless infrastructure, knowledge of Prisma SASE or cloud-based firewall deployments, basic understanding of Azure networking, familiarity with SCADA, PLC, or other industrial control systems, and ITIL Foundation certification.
Educational Qualifications:
- Bachelor's degree in Computer Science, Electronics, Telecommunications, or related field
Preferred Certifications:
- CCNA / CCNP (Routing & Switching or Security)
- PCNSE (Palo Alto Certified)
- Fortinet NSE or above
- ITIL Foundation As a Network Engineer specializing in Firewall & Industrial Networks, your role will involve designing, implementing, and supporting secure network infrastructures within Operational Technology (OT) and Process Control Network (PCN) environments. Your responsibilities will include:
- Designing and implementing secure and scalable network architectures for OT / PCN environments
- Providing Level support for complex routing, switching, and firewall-related incidents
- Configuring and troubleshooting enterprise-grade firewalls such as Palo Alto, Cisco ASA, and Fortinet
- Implementing and supporting VPNs, NAT, ACLs, and High Availability (HA) firewall configurations
- Collaborating with engineering, cybersecurity, and infrastructure teams to ensure secure IT-OT network segmentation
- Participating in structured change management processes and ensuring compliance with industrial standards
- Maintaining network documentation, architecture diagrams, and audit records
- Supporting both collocated and remote industrial environments
- Coordinating with Managed Service Providers (MSPs) when required
- Assisting in wireless deployments where applicable
To excel in this role, you should possess:
- 5+ years of experience in Network Engineering
- Minimum 2+ years of experience in OT / Industrial / Process Control Network environments
- Strong hands-on experience in routing and switching
- Strong firewall expertise, with preference for Palo Alto and acceptance of Cisco ASA / Fortinet
- Experience configuring VPNs, NAT, ACLs, and HA firewalls
- Solid understanding of OT and IT network segmentation principles
- Experience working in structured, process-driven support models
- Exposure to compliance and change management in regulated environments
Preferred skills include experience with Palo Alto Panorama, exposure to Cisco WLC or Aruba wireless infrastructure, knowledge of Prisma SASE or cloud-based firewall deployments, basic understanding of Azure networking, familiarity with SCADA, PLC, or other industrial control systems, and ITIL Foundation certification.
Educational Qualifications:
- Bachelor's degree in Computer Science, Electronics, Telecommunications, or related field
Preferred Certifications:
- CCNA / CCNP (Routing & Switching or Security)
- PCNSE (Palo Alto Certified)
- Fortinet NSE or above
- ITIL Foundation
Skills Required
Network Engineering
Cisco ASA
VPN configuration
SCADA
PLC
ITIL Foundation
Firewall technologies
Routing
switching
Secure industrial network architecture
Palo Alto
Fortinet
NAT configuration
ACL configuration
High Availability HA firewall configurations
ITOT network segmentation
Change management processes
Network documentation
Wireless deployments
Palo Alto Panorama
Cisco WLC
Aruba wireless infrastructure
Prisma SASE
Azure networking
Posted on: March 1, 2026
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