Network Systems Engineer

• Active Top Secret (TS) clearance required.
• Must be able to obtain and maintain clearance at the necessary level for assigned duties.

• Architect, configure, and manage routing, switching, and firewall hardware across mixed Cisco, Fortinet, and Juniper environments
• Design, implement, and maintain Enterprise VPN architectures (IPsec) and secure network enclaves
• Configure, deploy, and manage digital encryptors
• Analyze network appliances, software applications, and encryption technology products to specify and develop Risk Management Framework (RMF) documentation (NIST SP 800-37)
• Prepare, implement, and monitor network disaster procedures and infrastructure recovery solutions

• Review design and engineering blueprints, and oversee the deployment of fiber optic and structured cabling systems across new construction and existing facilities
• Enforce construction drawings, conduct site inspections to evaluate physical conditions, and oversee contractor execution for networking installations (ICS, Security ACS, IDS, and Cameras)
• Manage the three-phase control quality management process to verify physical and logical network compliance at all project stages
• Ensure all standards for pathways, cable management, racks, and distribution points have been installed for optimized performance

• Assess campus-wide needs for network bandwidth, stability, and security, ensuring scalability for future ICS and enterprise growth
• Participate in meetings, site briefings, and provide technical insight and troubleshoot complex network stability issues

• Ability to work in indoor and outdoor environments, including construction zones, and near high-voltage switchgear and substations
• Ability to work in high-security environments requiring strict access controls and security protocols
• Requires lifting/carrying up to 50 lbs, climbing ladders, and working in confined spaces

• BS. in Engineering, Computer Science, Information Technology or a related field is preferred
• Professional certification such as NSE, CCNA, CCNP, CISSP or equivalent, plus ten years of experience in lieu of a degree
• Five or more years of experience with a strong emphasis on network engineering, protocols, and infrastructure standards
• Two or more years of experience in a dedicated network engineering or network administration role
• Two or more years of experience with Industrial Control Systems (ICS) networks
• Experience with DoD construction projects, military facilities, or government contracting is highly preferred

• Comprehensive knowledge of advanced networking concepts (TCP/IP, VLANs, routing protocols) and computing infrastructures
• Experience with Cisco (e.g., ASA/Firepower), Fortinet (e.g., FortiGate), and/or Palo Alto firewalls
• Experience with the configuration and deployment of Cisco, Fortinet, and/or Juniper switches
• Familiarity with fiber optic network design, CAT6 cabling, and testing/troubleshooting tools (OTDR, Fluke testers)

• Global Industrial Cyber Security Professional (GICSP) obtained within 1 year of position.
• Fortinet Certified Professional (FCP) in Network Security (w/an elective in NSE 6 FortiSwitch) OR a Cisco equivalent (e.g., CCNP Enterprise/Security) obtained within 2 years of position.
• GIAC Response and Industrial Defense (GRID) obtained within 3 years of position.

• Excellent written and verbal communication and coordination abilities across multidisciplinary IT, OT, and construction teams
• Analytical and problem-solving skills to troubleshoot and optimize both physical infrastructure and logical network performance
• Ability to work in high-paced environments while managing multiple priorities

Why Work for Fusion?

At Fusion, we believe exceptional work begins with exceptional people.

Our teams bring together technical excellence, integrity, and a shared commitment to delivering mission‑critical solutions that directly support national security.

Here, your expertise has real impact.

You’ll collaborate with experienced professionals, contribute to meaningful programs, and be part of a supportive small‑business culture invested in your growth and success.

• Medical insurance with a generous employer HSA contribution
• 401(k) with company match and immediate vesting
• 15 days of vacation
• 5 days of sick leave
• 11 paid federal holidays
• A mission‑focused, supportive small‑business culture where your work makes a real impact

FusionICS, LLC is an Equal Opportunity Employer.

We consider all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.