Network Security Engineer (Fortinet, SD-WAN & ADVPN) - Resident Engineer

C-Serv; Allen (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

C-Serv is seeking an experienced Fortinet specialist to own and operate a Fortune-scale Fortinet backbone for a major financial services client. You will manage FortiGate infrastructure across a global, multi-site environment where judgment and precision matter.

You will build procedures for migrations, upgrades, and releases, test new Fortinet features before production, evaluate third-party device integrations, and train client staff to grow independence rather than dependency.

Qualifications

• 7+ years in LAN/WAN/Internet consulting, support, or administration.
• 5+ years with network security products, including 2+ years hands-on with Fortinet specifically.
• FortiGate firewall expertise.
• Fortinet SD-WAN design experience across a global, multi-site architecture.
• Experience in regulated financial environments.
• Authorized to work in the US without sponsorship.

Responsibilities

• The day-to-day of enterprise Fortinet infrastructure in a high-security financial environment, where judgment matters.
• Building procedures for migrations, upgrades, and releases that are clean and audit-ready.
• Testing new Fortinet features and releases before they touch production.
• Evaluating how third-party devices work with Fortinet, not just taking someone else's word.
• Training client staff so they grow, not stay dependent on you.
• Catching issues that matter before they become others' problems.

Skills

Fortinet FortiGate

LAN/WAN/Internet consulting

Network security products

Fortinet SD-WAN design

ADVPN

US work authorization

Fortinet certifications

Job description

Own a Fortune-scale network security backbone. Not babysit one.

A major financial services enterprise needs someone who can walk in, take real ownership of their Fortinet infrastructure, and run it like it's theirs. Not a support seat. Not a ticket queue. Actual ownership across a global, multi-site environment where the stakes, and the trust placed in you, are real.

What you'll own

• The day-to-day of enterprise Fortinet infrastructure in a high-security financial environment, the kind of environment where your judgment matters
• Building the methods of procedure that keep migrations, upgrades, and releases clean and audit-ready
• Testing new features and releases before they ever touch production
• Being the person who evaluates how third-party devices work with Fortinet, not just takes someone else's word for it
• Training client staff so they grow, not so they stay dependent on you
• Catching the issues that matter, before they become everyone else's problem

• 7+ years in LAN/WAN/Internet consulting, support, or administration
• 5+ years with network security products, including 2+ years hands-on with Fortinet specifically
• Real FortiGate firewall expertise, not just familiarity
• Fortinet SD-WAN design experience across a global, multi-site architecture
• Comfort operating in a regulated, high-stakes financial environment
• Authorization to work in the US without employer sponsorship
• ADVPN experience

Nice-to-haves that make you stand out:

• 2 to 3 Fortinet certifications, EPSP-track is ideal
• Prior professional services or consulting engineer background
• Strong grounding in switching, routing, load balancing, WiFi, IPS, VPN, antivirus/antispam, web filtering, and application control

What you'll get

Direct hire or contract flexibility,competitive rates paid and a placement with a firm that treats financial-sector security work as the specialist discipline it is.