Senior Network Engineer - Fortinet

Senior Network Engineer (Contract-to-Hire)

Location: Hybrid – 2 days onsite in Boulder, CO Compensation: $120K–$140K upon conversion

About the Role Our client is seeking a Senior Network Engineer to design, implement, and optimize our enterprise network infrastructure. This role bridges the gap between architecture and administration—turning high-level designs into secure, efficient deployments. You'll work closely with our Network Architect and IT Operations team to build a resilient, modern network that supports their growth.

Key Responsibilities

• Implement network designs across Fortinet, Cisco, and other platforms.
• Configure and manage Fortinet FortiGate firewalls, FortiSwitches, FortiAPs, and FortiManager environments.
• Deploy and maintain high-availability systems for network resilience.
• Optimize network topology, redundancy, and capacity in collaboration with the Network Architect.
• Monitor, tune, and troubleshoot WAN/LAN/WLAN and VPN performance.
• Manage network security: firewall policy audits, vulnerability mitigation, and compliance.
• Document configurations, standards, and disaster recovery procedures.
• Mentor Network Administrator and assist with escalated incidents.
• Support IT projects like network modernization and IoT security segmentation.
• Participate in on-call rotation and after-hours maintenance.

Top Skills – Must Haves

• Fortinet Expertise (Highest Priority):
• FortiGate firewalls (e.g., 4040 gates)
• FortiSwitches, FortiAPs
• Tools: FortiManager, FortiAnalyzer, FortiNAC
• Configuration, troubleshooting, and optimization
• Network Design & Operations:
• Routing, switching, VLANs, VPNs
• Network architecture and protocols
• Network Security:
• Firewall policy management
• Secure-by-design mindset
• Documentation & Audit Support
• Nice to Have:
• Cisco routers and network design experience

Employee Value Proposition

Work with Fortinet's latest tools and explore AI-driven network solutions. Hybrid schedule with 2 days onsite in Boulder. Collaborative team that values innovation, security, and continuous improvement.

Why This Role Matters

Our network infrastructure is evolving, and we need an engineer to take on critical workload so our architect can focus on strategic initiatives. You'll play a key role in upcoming network audits and modernization projects.

Job Type & Location

This is a Contract to Hire position based out of Boulder, CO.

Pay and Benefits

The pay range for this position is $45.00 - $65.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Boulder, CO.

Application Deadline

This position is anticipated to close on Jan 12, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.