Unix/Linux Network and Computer Systems Administrator

B&A•Portsmouth, VA

About The Position

B&A is seeking a Senior Network and Computer Systems Administrator 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.

Requirements

Bachelor’s degree in IT, Computer Science, or related field.
10-15 years of experience in enterprise networking.
Strong knowledge of TCP/IP, VLANs, routing protocols (OSPF, BGP), and network monitoring tools.
U.S Citizen
Active Top Secret (T5)

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.

Benefits

Three robust individual and family medical plans
Health Savings Account (HSA) option
Two tiers of dental coverage
Vision insurance
Life & AD&D insurance
Disability insurance
Accident insurance
Hospital indemnity insurance
Critical illness insurance
Paid time off
B&A sponsored trainings and certifications
Pet insurance benefits
Commuter transit benefits
Free subscription to a virtual exercise platform (NEOU)
401(k) plan with company matching contribution
B&A Cares program (wellness check ins, personal development, financial management, and stress management seminars)
Formal mentorship program
Job shadowing and cross training opportunities
Brand Ambassador program
Employee Assistance Program (EAP) - Access to counseling, legal guidance, financial planning
Monthly teambuilding events
Annual Wellness Challenges (#StepWithB&A, #WalkDuringLunchWithB&A, #VolunteeringWithB&A, #ExerciseDuringLunchWithB&A)