Sr. Communication Systems Design Engineer, Secret-Littleton,CO

Lockheed Martin is seeking a highly motivated Network Operations Technician to join the Infrastructure Deployment Services (IDS) team in Littleton, CO. As a key member of the West Region network operations team, you will support enterprise-wide networking services for Lockheed Martins Business Areas (BA) and the Enterprise IT organization.
You will serve as a primary technical resource responsible for sustaining, implementing, remediating, and supporting secure LAN/WAN infrastructureincluding corporate, classified, program-specific, and voice networks. The role includes hands-on work with routers, switches, wireless systems, firewalls, and more, while ensuring compliance with IT policies, audit requirements, and customer regulations.
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Key Responsibilities
Support, maintain, and remediate network infrastructure (routers, switches, firewalls, WAPs, VOIP, DNS/DHCP, Extranets)
Provide second-level troubleshooting and incident resolution using network monitoring tools
Interface directly with internal customers and stakeholders, including executives, to deliver technical updates and project status
Interpret business and compliance requirements into network solutions and documentation
Collaborate with IT and engineering teams to integrate services across physical and virtual environments
Participate in planning, testing, documenting, and implementing infrastructure solutions
Maintain detailed documentation including network diagrams, configurations, and asset information
Support development and integration of tactical and hybrid communications systems as part of 5GMIL (5G for Military) initiatives
Support ServiceNow ticket management, equipment lifecycle, and change management processes Bachelors degree in a related field or equivalent experience with 5+ years in IT/networking
3+ years hands-on experience with LAN/WAN/Wireless network infrastructure
In-depth knowledge of TCP/IP, VLANs, IPv4/IPv6, subnetting, routing tables, and peer-to-peer networking
Proficiency with Cisco IOS, CLI tools, and industry-standard troubleshooting practices
Ability to perform structured root cause analysis for network incidents
Strong written communication and technical documentation skills
Willingness to work flexible hours and participate in on-call rotations
Ability to lift up to 35 lbs and stand/walk for extended periods
CompTIA Security+ (or ability to obtain within 6 months of hire) Active DoD Secret clearance
Certifications such as CCNA, CCNP, CCIE, CISSP, Juniper, or Arista
Experience with Software-Defined Networking (Cisco DNA Center, ACI, APIC, OpenStack)
Experience with BGP and OSPF routing protocols
Familiarity with Wireshark and packet capture analysis
Experience with ServiceNow, Cisco Viptela SD-WAN, Arista BCF, Juniper SRX, Infoblox, and CA Spectrum
Knowledge of firewall and VPN infrastructure
Experience managing vendor escalations, RMAs, and root cause analysis
Cloud experience with AWS or Azure, including:
o Virtual networking (VPCs/VNETs), subnets, and security groups
o Integration of cloud networks with on-prem infrastructure
o Cloud-based firewalls, load balancers, and routing configuration
o Experience with cloud monitoring and network performance tools
Support experience or awareness of 5GMIL (5G for Military) environments, including:
o Network segmentation and edge compute integration
o Secure wireless backhaul and transport design
o Application support across hybrid and tactical networks
o Military-focused network compliance and resiliency best practices
Ability to translate corporate IT policies into actionable network solutions and support plans