Network Engineer

Extant Aerospace•Melbourne, FL

1d•Onsite

About The Position

This is an onsite role and U.S. Citizenship is required. We are seeking a skilled and motivated Network Engineer to implement and maintain our enterprise network infrastructure across multiple sites. This individual will be responsible for the configuration and ongoing management of all network devices — including firewalls, switches, and wireless access points — and will be a key contributor to network segmentation strategy, configuration change management, and VoIP telephony integration. The ideal candidate is hands-on, detail-oriented, and comfortable operating in a compliance-driven defense contracting environment where network integrity directly supports mission-critical operations.

Requirements

Bachelor’s degree in Information Technology, Business, Engineering, or a related field required
3–5 years of hands-on experience in network engineering or network administration
Demonstrated proficiency configuring and managing enterprise firewalls (policy creation, NAT, VPN, IPS/IDS)
Experience with managed switches — VLANs, STP, port security, trunking, and inter-VLAN routing
Hands-on experience with enterprise wireless systems (access point deployment, SSID segmentation, RF management)
Working knowledge of VoIP technologies — SIP trunking, PBX/UC platforms, QoS configuration, and endpoint provisioning
Solid understanding of TCP/IP networking, subnetting, and routing protocols (OSPF, BGP fundamentals)
Experience with network segmentation design supporting security or compliance requirements
Strong documentation skills — network diagrams (Visio or draw.io), runbooks, and change records

Nice To Haves

Master’s degree preferred
Experience with the Fortinet product stack — FortiGate firewalls, FortiSwitches, FortiAPs, and FortiManager
Familiarity with SD-WAN configuration and management
Exposure to CMMC, NIST 800-171, or other DoD compliance frameworks
Experience in a defense contracting or government environment
Scripting or automation experience (Ansible, Python, or PowerShell) for network configuration management
Active Secret clearance or willingness to obtain
Certifications: Network+, CCNA, NSE 4/5 (Fortinet), or equivalent

Responsibilities

Configure, manage, and maintain all network infrastructure including firewalls, managed switches, routers, and wireless access points across on-premises and remote sites
Design and implement network segmentation strategies including VLANs, ACLs, and zone-based firewall policies to support security compliance and CUI data handling requirements
Manage and process configuration change requests following formal change management procedures, ensuring changes are tested, documented, and approved prior to implementation
Deploy, administer, and troubleshoot VoIP phone systems, including handset provisioning, dial plan management, call routing, and QoS tuning
Monitor network performance and availability using network management tools; proactively identify and resolve bottlenecks, outages, and degraded services
Maintain accurate and up-to-date network documentation including topology diagrams, IP address management (IPAM), device inventories, and configuration baselines
Support site-to-site VPN configuration, SD-WAN deployments, and remote access infrastructure
Collaborate with the cybersecurity team to ensure firewall rulesets, wireless configurations, and network architecture align with NIST 800-171 and CMMC requirements
Participate in on-call rotation for after-hours network incidents and maintenance windows