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Senior Network Engineer

Addison Group

Houston, TX • 10/10/2026

Job Description

Job Description

Job Posting: Senior Network Engineer

Salary: $130,000–$140,000

We are seeking a highly experienced Senior Network Engineer to lead the design, implementation, and optimization of enterprise network and security infrastructure. This individual will play a key role in modernizing the organization's Fortinet environment, implementing next-generation firewalls, and supporting network integrations and cloud-based solutions.

The ideal candidate is a hands-on technical expert who can independently architect and implement network solutions, lead complex infrastructure projects, and thrive in a smaller IT environment where versatility and ownership are essential.

Key Responsibilities:

  • Independently design, configure, and implement enterprise network infrastructure, with a strong emphasis on Fortinet firewalls and security solutions.
  • Lead upgrades and implementations involving next-generation firewalls, VPN, SD-WAN, and SASE technologies.
  • Configure and manage Fortinet products, including FortiGate, FortiSwitch, FortiManager, and related solutions.
  • Support LAN/WAN infrastructure, routing, switching, and network security.
  • Assist with network integrations related to mergers and acquisitions.
  • Support VoIP infrastructure and the migration of on-premises telephony systems to cloud-based solutions.
  • Troubleshoot complex network issues, optimize performance, and maintain network security.
  • Lead infrastructure projects independently from design through implementation.

Qualifications:

  • 10+ years of network engineering experience with strong hands-on architecture and implementation skills.
  • Expert-level Fortinet experience, including independently designing and deploying complete Fortinet environments.
  • Strong knowledge of next-generation firewalls, VPN, SD-WAN, and network security.
  • Understanding of SASE and Zero Trust technologies; experience with Zscaler, Cato Networks, or Fortinet SASE is a plus.
  • Experience with Cisco networking, routing protocols, and enterprise network infrastructure.
  • Working knowledge of VoIP, SIP, PBX, or cloud telephony solutions.
  • Experience with AWS or Azure networking is preferred.
  • M&A network integration experience is a strong plus.
  • Ability to work independently, manage multiple projects, and take full ownership of technical solutions.