Sr. Network Engineer | Cleared | Florida

Lockheed Martin•Orlando, FL

12d•Onsite

About The Position

Lockheed Martin's EBDT Classified IT Transformation team is modernizing the delivery of classified IT services for Business‑Area partners and DoD programs. We seek an experienced Network Engineer to join the Classified IT Center of Excellence (CoE). In this fast‑paced, innovation‑driven environment, the incumbent will design, implement, and secure next‑generation IT infrastructure solutions, standardize and streamline processes across classified environments, and collaborate with cross‑functional teams to accelerate product development for U.S. Department of Defense missions. The role is critical to enabling Lockheed Martin to deliver higher‑quality, mission‑critical solutions more rapidly.

Requirements

Top Secret Clearance Required with the ability to Obtain and Maintain a CI Polygraph.
Demonstrated experience with configuring and maintaining Network devices (Switches, Firewalls and Routers).
Experience with Cisco, Juniper and Palo Alto network devices and creating firewall rule Policies.
IAT‑Level II (8570‑compliant) certification (Security+ or equivalent certification)
Proven classified infrastructure support and administration experience
Experience with DoD requirements and processes including Risk Management Framework requirements within classified environments.
Active Top Secret (or higher) clearance required at hire; must remain eligible throughout employment , U.S. citizen, candidates must also be eligible to undergo a Counter‑Intelligence (CI) polygraph.

Nice To Haves

IAT‑Level II (8570‑compliant) certification (Security+, GSEC, SCNP, SSCP, CISSP, CISA, GSE, SCNA)
Network‑security certifications (CCNA, CCNP, CCIE, JNCIA, Palo Alto Networks)
4 + years experience administering and supporting enterprise‑class, classified IT infrastructure
Hands‑on experience with Cisco, Juniper, and Palo Alto devices; Cisco ACI, CUCM, Unity Connection, Voice/VTC deployments
Configuring, installing, deploying, and maintaining switches, routers, firewalls, WAN optimizers, encryption appliances (TACLANE), and optical‑transport equipment
Strong knowledge of the OSI model, TCP/IP, BGP, OSPF, VLANs, GRE tunnels, UDP multicast, SONET, MSPP, DNS, DHCP, subnetting, and Layer‑2/3 VLAN design
Network traffic analysis, diagnostics, and troubleshooting expertise
Virtualization & cloud platforms: VMware (NSX, vSAN, Horizon, ARIA), private/public clouds, SAN/NAS, VDI, NetApp storage, Dell VxRail/HCI
Scripting/automation (PowerShell, Bash, Python or similar)
Firewall rule creation and policy management
Familiarity with STIGs, RMF, vulnerability management, patching, and security hardening processes
Experience with ITSM/ITOM tools (e.g., Aria Operations) and DoD Cloud Computing SRG compliance
Excellent written and verbal communication, documentation, and mentoring skills
Growth mindset with willingness to learn new technologies and adapt to a fast‑changing, mission‑critical environment

Responsibilities

Perform routine updates, major upgrades, patching, and vulnerability scanning
Maintain asset inventory and ensure hardware/software lifecycle compliance
Enforce Lockheed Martin and DoD policies, including STIG and RMF requirements
Implement security hardening, remediate findings, and conduct technical security implementations
Provide timely resolution of infrastructure issues (hardware, software, networking)
Update Service Central tickets, JIRA issues, and Confluence pages with accurate status, work performed details, and any changes to scope, priority, or assignment; attach relevant artifacts and ensure traceability to requirements or incidents.
Coordinate with stakeholders (customers, engineers, and support leads) to verify resolution, close tickets or issues promptly, and communicate any follow up actions or documentation updates across all three platforms.
Design and implement innovative technical solutions to complex problems
Support classified customer demonstration environments and lab testbeds, ensuring readiness and performance for stakeholder reviews
Document system configurations, procedures, and lessons learned
Mentor junior staff and contribute to knowledge‑base growth
Participate in a 24 × 7 on‑call rotation; work off‑shift hours and weekends as needed
Work onsite full‑time with occasional travel to other Lockheed Martin facilities or customer sites