Network Administrator; Senior-Level

Job Title

Network Administrator (Senior-Level) – Aberdeen Proving Ground, MD

Link Solutions is seeking a Senior-Level Network Administrator to support the Army Research Laboratory in Aberdeen Proving Ground, MD. The role involves maintaining enterprise network architecture, Layer 2/3 switching, routing protocols, and network security in accordance with DoD and ARL IT policies.

• Manage network performance and proactively maintain security protocols.
• Configure, install, and maintain Layer 2/3 switches, routers, wireless access points, firewalls, encryption devices, and telecommunication systems.
• Troubleshoot complex network issues across a variety of devices and configurations.
• Implement and enforce information security procedures in compliance with organizational policies.
• Configure routing protocols, including OSPF and BGP, and manage both IPv4 and IPv6 based networks.
• Set up and manage IPSec tunnels, 802.1x, and 802.11 LAN/MAN environments.
• Define and enforce network policies, procedures, and performance standards.
• Train users in network operations and best practices.

• U.S. Citizen.
• Active DoW Top Secret Clearance.
• Ten (10+) years of relevant experience or BA/BS Degree with two (2+) years in an IT enterprise network engineering role.
• Five (5) years of Cisco Identity Services Engine (ISE) experience.
• DoD 8570/8140 Level II Security Certification (e.g., CompTIA Security+, CCNA Security, GICSP, GSEC, SSCP).
• Cisco Certified Network Professional (CCNP) certification.
• Proven leadership in managing complex DoD network environments.
• Advanced knowledge of routing protocols (OSPF, BGP), security standards (802.1X, 802.11, MAC bridging), and media access control systems.
• Experience in network segmentation, traffic management, and secure network architecture design.
• In-depth knowledge of network monitoring tools, platforms, and documentation best practices.
• Ability to plan and implement large-scale network configurations and upgrades while minimizing downtime.

• ITIL v4 certification.
• Experience with incident management within Service Now ITSM platform.
• Familiarity with NIST, STIG, RMF, and Federal Information System Controls.
• Working knowledge of hardware configuration management tools and logistics tracking systems.
• Proficiency with Microsoft Office products.
• Experience creating and modifying documentation for technical procedures.
• Experience working in a DoD environment.
• Strong problem-solving and troubleshooting skills.
• Excellent written and oral communication skills.
• Excellent organizational skills, attention to detail, and ability to prioritize multiple tasks.

USD 62,000 – USD 104,000 per year, based on experience and qualifications.

• Paid holidays.
• Paid time off.
• Medical, dental, vision.
• Company‑paid long and short‑term disability.
• Life insurance.
• Referral bonuses.
• Relocation incentive program.
• Certification reimbursement program.
• Retirement plan.

Link Solutions, Inc. is an EOE. AA/M/F/D/V. We participate in the E-Verify Employment Verification Program. All your information will be kept confidential according to EEO guidelines.