Senior Unix/Linux Network & Systems Admin – Onsite, TS

Arena Technical Resources, LLC (ATR); Portsmouth (VA); On-site; USD 85,000 - 90,000; Full time

Benefits offered by this job

Benefits

Job summary

Arena Technical Resources, LLC (ATR) in Portsmouth, Virginia, onsite, seeks a Senior Unix/Linux Network & Systems Administrator to design, implement, and maintain enterprise network and server infrastructure for secure, high-performance IT operations. The ideal candidate will have 7+ years of enterprise networking experience, strong TCP/IP, VLANs, OSPF and BGP, and an active Top-Secret clearance for a government contract.

A Bachelor's degree is required.

Qualifications

• 7+ 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

Security policies

Education

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

Job description

Arena Technical Resources, LLC (ATR) in Portsmouth, Virginia, onsite, seeks a Senior Unix/Linux Network & Systems Administrator to design, implement, and maintain enterprise network and server infrastructure for secure, high-performance IT operations. The ideal candidate will have 7+ years of enterprise networking experience, strong TCP/IP, VLANs, OSPF and BGP, and an active Top-Secret clearance for a government contract.

A Bachelor's degree is required.