Senior Network Engineer: Process Control Network (PCN)

PERSOL; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

PERSOL is seeking an experienced network security architect to lead the design, implementation, and support of secure PCN environments in Bengaluru. You will focus on firewall technologies, segmentation, and robust site network design to support global industrial deployments.

The role requires hands-on expertise with Palo Alto firewalls, AlgoSec, ServiceNow, and Agile delivery, coordinating with global teams to ensure secure, scalable, and resilient networks.

Qualifications

• Hands-on Palo Alto firewalls with PCN/OT security focus.
• Strong firewall policy design and security segmentation (Purdue model).
• Experience with AlgoSec for policy analysis and automation.
• Experience with ServiceNow for incident/change management.
• Solid routing & switching knowledge (BGP, OSPF, VRF, VLANs).
• Background in industrial/PCN/OT network environments.

Responsibilities

• Design and implement PCN network infrastructure including firewalls, routing, and switching.
• Lead firewall architecture, policy management, and segmentation initiatives.
• Manage firewall lifecycle using AlgoSec for analysis, compliance, and automation.
• Develop technical designs, implementation plans, and test strategies.
• Provide Tier-3 support for complex incidents and coordinate with vendors.
• Execute changes via ServiceNow (incident & change management).
• Collaborate with global teams to implement solutions and resolve escalations.
• Drive automation, process improvements, and Agile delivery practices.
• Support BC/DR activities and network resiliency initiatives.
• Develop and maintain reliable, efficient network security infrastructure across PCN environments.

Skills

Palo Alto firewalls

Firewall policy design

Security segmentation

Routing & Switching

Industrial/PCN/OT networks

Agile delivery

Network automation

Education

Bachelor's/Master's IT/CS or related

CCNP, Palo Alto PCNSE preferred

Tools

AlgoSec

ServiceNow

Panorama

Job description

Role Summary

Lead the design, implementation, and support of secure Process Control Network (PCN) environments, with a strong focus on firewall technologies, network segmentation, and site network design.

The role requires hands-on expertise in Palo Alto firewalls, AlgoSec, ServiceNow, and Agile delivery, supporting global industrial network deployments and operations.

Key Responsibilities

• Design and implement PCN network infrastructure (firewalls, routing, switching)


• Lead firewall architecture, policy management, and segmentation (Purdue model)


• Manage firewall lifecycle using AlgoSec for policy analysis, compliance, and automation


• Develop technical designs, implementation plans, and test strategies


• Provide Tier-3 support for complex incidents and coordinate with vendors


• Execute changes through ServiceNow (incident & change management)


• Collaborate with global teams to implement solutions and resolve escalations


• Drive automation, process improvement, and Agile delivery practices


• Support BCP/DR activities and network resiliency initiatives


• Develops and implements solutions and processes to maintain the reliability, effectiveness, and efficiency of network security infrastructure components across the enterprise and associated process control environments.


• Works with project managers, team members, architects, business units and other stakeholders to create agile solutions, identifying continuous improvement opportunities, creating new or improved processes and automation to support step changes in operational efficiencies.


• Analyses network security needs and designs solutions that meet business requirements for protection, standardization, efficiency, scalability, supportability, and cost-effectiveness. Contributes to lifecycle activities.


• Follows standard change management processes and practices when introducing technical changes to the environment.

Must-Have Skills

• Strong hands-on experience in Palo Alto firewalls (mandatory)


• Expertise in firewall policy design, security segmentation


• Experience with AlgoSec (policy analysis & automation)


• Experience with ServiceNow (incident/change management)


• Strong knowledge of routing & switching (BGP, OSPF, VRF, VLANs)


• Experience in industrial / PCN / OT network environments

Good-to-Have Skills

• Knowledge of Purdue model / OT segmentation


• Experience with Agile/Scrum delivery


• Exposure to network automation (Python/APIs)


• Experience with centralized firewall management (e.g., Panorama)

Qualifications

• Bachelors/Master’s degree in IT / Computer Science or related field


• Certifications: CCNP, Palo Alto (PCNSE preferred)