Sr. Network/Systems Administrator

US Navy; Portsmouth (VA); On-site; USD 110,000 - 170,000; Full time

Job summary

US Navy seeks a Senior Network and Computer Systems Administrator to design, implement, and maintain enterprise network and server infrastructure. The role ensures secure, reliable, high‑performance IT operations in mission‑critical environments.

Responsibilities include configuring routers, switches, firewalls, VPNs, monitoring performance, enforcing security (ACLs, IDS/IPS, STIG), and leading disaster recovery planning. Bachelor's degree and 10+ years in enterprise networking required.

Qualifications

• Bachelor's degree in IT, Computer Science, or related field.
• 10+ years of experience in enterprise networking.

Responsibilities

• Configure, monitor, and troubleshoot routers, switches, firewalls, and VPNs.
• Manage network performance, capacity planning, and QoS policies.
• Implement and maintain network security measures (ACLs, IDS/IPS, STIG compliance).
• Perform firmware upgrades, patching, and vulnerability remediation.
• Support disaster recovery and business continuity planning.
• Document network architecture, configurations, and change management processes.

Skills

TCP/IP

VLANs

OSPF

BGP

network monitoring

firewalls

VPNs

Education

Bachelor's degree in IT, Computer Science, or related field

Tools

IDS/IPS

STIG compliance

Job description

We are seeking a Senior Network and Computer Systems Administrator is responsible for the design, implementation, and maintenance of enterprise network and server infrastructure to ensure secure, reliable, and high-performance IT operations. This role combines advanced networking expertise with comprehensive systems administration skills to support mission-critical environments.

Responsibilities

• Configure, monitor, and troubleshoot routers, switches, firewalls, and VPNs.
• Manage network performance, capacity planning, and QoS policies.
• Implement and maintain network security measures (ACLs, IDS/IPS, STIG compliance).
• Perform firmware upgrades, patching, and vulnerability remediation.
• Support disaster recovery and business continuity planning.
• Document network architecture, configurations, and change management processes.

Education and Experience

• Bachelor's degree in IT, Computer Science, or related field.
• 10+ years of experience in enterprise networking.

Required Skills

• Strong knowledge of TCP/IP, VLANs, routing protocols (OSPF, BGP), and network monitoring tools.