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LTIMindtree · 2 days ago

Network Engineer with Palo Alto Firewalls and PCN/OT(Onsite)

Houston, TX

Full-time

Onsite

Senior Level, Lead/Staff

$94K/yr - $127K/yr

15+ years exp

LTIMindtree is a global technology consulting and digital solutions company that enables enterprises across industries to reimagine business models and accelerate innovation. They are seeking a seasoned Network Security professional to lead the design, implementation, and lifecycle management of Process Control Network (PCN) and perimeter security controls across industrial/OT environments.

ConsultingEnterpriseInformation TechnologySoftware

H1B Sponsor Likely

Hiring Manager

Rahul Sharma

Responsibilities

Define and maintain secure PCN/OT network architectures, zoning, and segmentation; design reference patterns for site deployments and interconnects to business networks and cloud edge services

Lead end‑to‑end firewall lifecycle— requirements intake, sizing, solution selection, commissioning, pre‑prod registration, and cutover —in line with our playbook and standards

Establish policy baselines, review and refine rule sets, enforce change management, and drive periodic audits for least‑privilege, App‑ID, User‑ID, NAT, IPS/Threat prevention, URL filtering, and TLS decryption where appropriate

Champion platform standards (e.g., Palo Alto hardware/software selection, supported PAN‑OS versions, and upgrade procedures) and coordinate vendor engagements

Orchestrate commissioning activities (IP addressing/subnets, racking, initial setup, HA pairs, path testing) with OT, Network Assets, and Service Delivery teams per established processes

Oversee day‑to‑day operations, incident response, performance tuning, capacity planning, log analysis, and health monitoring; partner with SOC for threat detection and response

Embed controls aligned to ISA/IEC 62443 and enterprise security policies; prepare for audits and ensure evidence collection, configuration hardening, and continuous compliance

Collaborate with OT engineers, cybersecurity, cloud/network architects, and managed service providers to deliver secure, resilient connectivity

Produce and maintain detailed design docs, runbooks, and diagrams; mentor engineers and drive standardization across plants/sites

Identify modernization opportunities (automation, telemetry, configuration as code, Panorama/Ansible workflows) and lead POCs/rollouts

Qualification

Palo Alto FirewallsNetwork Security EngineeringPCN/OT EnvironmentsTCP/IPFirewall ArchitectureSecurity ControlsISA/IEC 62443Design & DocumentationAutomationNetwork Monitoring ToolsCertificationsCollaboration

Required

15+ years in network security engineering, with 8+ years in industrial/OT/PCN environments and 8+ years of firewall architecture/operations at enterprise scale

Deep hands-on experience with Palo Alto NGFWs (design, policy, HA, upgrades, Panorama), plus working knowledge of one or more of Check Point/Fortinet/Cisco ASA/F5 AFM

Expert-level TCP/IP, routing (OSPF/BGP), switching, VLANs, QoS, NAT, DNS/DHCP, authentication/AAA; strong grasp of segmentation patterns for OT/ICS

Proficiency with IPS/Threat prevention, SSL/TLS decryption, identity-based policies, URL filtering, and logging/telemetry integration (Syslog/SIEM)

Ability to produce high-fidelity architecture diagrams and commissioning documents that include zones, subnets, ports, and application flows, consistent with lifecycle guidance

Familiarity with ISA/IEC 62443, NIST SP 800-82, and enterprise audit/control frameworks

Demonstrated success working cross-functionally with OT, network assets/service delivery, vendors, and managed service partners

Bachelor's in Computer Science, Electrical/Network Engineering, or equivalent. Relevant certifications such as PCNSE (Palo Alto), NSE (Fortinet), CCNP Security, or CISSP are strongly preferred

Preferred

Experience with Panorama multi-tenant policy management; GlobalProtect; application-aware policies (App-ID); micro-segmentation patterns in OT

Exposure to Azure networking (VNets, vWAN, Palo Alto VM-Series), on-prem/cloud secure edge designs

Familiarity with automation (Ansible/REST APIs), config compliance checks, and golden image management

Tooling: Network performance/monitoring (e.g., SolarWinds, NetFlow), ticketing/ITSM, and diagramming/Visio

Benefits

Comprehensive Medical Plan Covering Medical, Dental, Vision

Short Term and Long-Term Disability Coverage

401(k) Plan with Company match

Life Insurance

Vacation Time, Sick Leave, Paid Holidays

Paid Paternity and Maternity Leave

Company

LTIMindtree

Glassdoor3.6

LTIMindtree is a worldwide technology consulting and digital solutions company that empowers businesses in a variety of sectors.

Founded in 1996

Mumbai, Maharashtra, IND

10001+ employees

https://www.ltimindtree.com

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