Senior OT Network & Security Engineer - Hybrid (AZ)

Vertech; Phoenix (AZ); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible schedule

Bonus plan

401k

Holiday party

Growth opportunities

PTO

Job summary

Vertech, based in the United States, is seeking a Senior Industrial Network Engineer to design and support secure industrial networks for clients across various sectors, including solar, water, and manufacturing. The role emphasizes OT cybersecurity, Purdue ISA/IEC 62443 standards, and hands-on Cisco equipment management.

The ideal candidate has extensive experience in industrial networking, strong leadership, and the ability to mentor junior engineers while advancing Vertech’s internal network

Qualifications

• Four-year degree in CIS, MIS, or similar, or 7 years of successful industrial networking experience
• 5+ years leading a company’s internal IT or OT department
• CCNP or CCIE certification, or equivalent experience supporting Cisco or equivalent managed switches, routers, and firewalls
• Extensive experience designing and implementing secure network infrastructure, both from the ground up and incorporated into existing systems
• Complete understanding of IP protocols and the ability to analyze network traffic to understand communication patterns
• Working knowledge of industrial protocols such as DNP3, Modbus, EtherNet/IP, and OPC
• Complete understanding of NERC CIP, NIST, and ISA/IEC 62443 security standards
• Network security certifications such as GICSP, GSEC, CISSP, or CISM preferred
• Experience in the Energy vertical, such as solar PV, BESS, or utility projects, is a big plus
• Experience with Fortinet or Palo Alto Networks firewalls and OT visibility platforms such as Claroty or Nozomi Networks is a plus
• Scripting skills in Python, PowerShell, or Lua
• Excellent communication and customer relationship skills, and the ability to work well in a team environment

Responsibilities

• Design, implement, maintain, and support secure communication networks for our clients and for our own organization
• Design and implement network security equipment such as firewalls, rule sets, and ACLs
• Architect segmented industrial networks using the Purdue Model and ISA/IEC 62443 zones and conduits
• Install, set up, and configure Cisco switches, routers, access points, and other devices vital to business and industrial operations
• Design secure, highly available networks for solar PV and battery energy storage (BESS) sites, including SCADA, power plant control, and secure remote access
• Troubleshoot connectivity issues and outages in wired (802.3) and wireless (802.11) TCP/IP networks, coordinating with third-party vendors when needed
• Perform network audits, vulnerability assessments, and penetration testing at client facilities and recommend mitigation strategies
• Support client NERC CIP compliance through network documentation, access controls, and reporting
• Act as the technical lead on network projects, lead small teams, and mentor less experienced engineers
• Support and improve Vertech’s internal corporate network
• Lead internal training and write case studies and articles that share what you know

Job description

Vertech, based in the United States, is seeking a Senior Industrial Network Engineer to design and support secure industrial networks for clients across various sectors, including solar, water, and manufacturing. The role emphasizes OT cybersecurity, Purdue ISA/IEC 62443 standards, and hands-on Cisco equipment management.

The ideal candidate has extensive experience in industrial networking, strong leadership, and the ability to mentor junior engineers while advancing Vertech’s internal network