Senior Network Administrator

Founded in 1989, SOSi is among the largest private, founder‑owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

🌐 Lead the Network. Power the Mission. Join SOSi in Honolulu.

SOSi is on the hunt for a Senior Network Administrator to join our elite team at Joint Base Pearl Harbor Hickam in Honolulu, HI. In this pivotal role, you’ll ensure secure, compliant, and resilient network operations that support USINDOPACOM’s mission‑critical communications across the Pacific theater.

From managing complex IT systems to solving high‑stakes technical challenges, you’ll be at the front‑line of enabling time‑sensitive Command and Control (C2) strategies for over 5,000 users
. If you’re ready to elevate defense tech and make a strategic impact—this is your next move.

As a Senior Network Administrator at SOSi, you will work within the Network Operations team to provide essential support within the USINDOPACOM Area‑of‑Responsibility AOR. Your role includes monitoring, maintaining, and ensuring network availability, all while adhering to DoD regulations. You will be responsible for managing various network components, including LAN, BAN, WAN, telecommunications/transport protocols, Unified Communications/VoIP/Video Teleconferencing (VTC), WAN accelerators, load‑balancers, firewalls, and cryptographic devices.

• Configures and maintains Cisco routers, switches, Adaptive Security Appliances (ASAs), Taclane encryption devices, and Cisco Voice over IP (VoIP) systems to support efficient data flow within the network, while following established Standard Operating Procedures (SOPs) and Tactics, Techniques, and Procedures (TTPs) when necessary.
• Supports and troubleshoots External Border Gateway Protocol (eBGP) routing within a Palo Alto environment.
• Implements and provides oversight of Commercial Solutions for Classified (CSfC) and Taclane encryption methods to protect sensitive data.
• Provides essential support in the maintenance of VDI environments, ensuring efficient and secure user access.
• Manages Cisco Unified Communications Manager (CUCM), Video Teleconferencing systems (VTC) s, and other Cisco VoIP systems to ensure reliable communication services.
• Serves as a point of incident escalation and coverage for network‑related issues. Reviews and troubleshoots network transport and protocol related issues.
• Collaborates with the Cross‑Domain Solutions team to facilitate secure information sharing across security domains.
• Acts as the primary point of contact (POC) for the project management team in support of the installation, configuration, and implementation of network equipment for new projects and requirements.
• Actively participates in project coordination alongside the project management team to ensure successful project execution.
• Liaises with POCs and customers to understand their network needs and provides appropriate solutions, including but not limited to List of Materials (LOM), proposals and related supporting documents (e.g., solution diagrams, implementation timelines, etc.).
• Diligently follows guidance and direction from the Network Operations Lead, Deputy, and Operations Manager, adhering to established standards and procedures for network administration.
• Participates in related solution technologies and special projects, as required.

• Active in‑scope TOP SECRET clearance with SCI eligibility.
• Bachelor’s Degree in IT, Networking, or similar, and 4 years of related experience or 8+ years of experience in network administration.
• DoD 8570 IAT‑II compliant (CCNA, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)
• Cisco Certified Network Associate (CCNA) or higher.
  
  Expertise in Cisco routers, switches, ASA, Palo Alto firewalls, CSfC, Taclane encryption methods, VDI environments, Cross‑Domain Solutions, CUCM, and VTCs.
• Knowledge of network security best practices and compliance standards including government Secure Technical Implementation Guidelines (STIGs).
• Strong problem‑solving skills and the ability to troubleshoot network issues.
• Ability to…