Senior Systems Administrator - Red Hat & Windows | TS/SCI

AV; Maryland; On-site; USD 150,000 - 175,000; Full time

Benefits offered by this job

Medical benefits

Dental vision

401K with company matching

9/80 work schedule

Paid holiday shutdown

Job summary

AV is seeking a System Administrator to manage and support mission-critical IT infrastructure across Windows and UNIX systems. The role involves day-to-day operations, troubleshooting, and maintenance in a multi-platform environment.

You will provide Tier I/II IT support, manage networks/servers, configure RedHat Linux and Windows, support vulnerability management with Nessus, and collaborate with vendors on system refreshes and security documentation.

Qualifications

• Bachelor’s degree in Information Technology, Information Systems, Computuer Engineering, or related field is required or equivalent combination of education, and experience
• Minimum 10+ years of system administration experience
• Strong RedHat Linux and Windows (2012/2016/2019) troubleshooting skills.
• Familiarity with Nessus, POA&Ms, and STE/STN initiatives.
• Experience configuring UNIX and Windows environments.
• An active TS/SCI with Polygraph.

Responsibilities

• Provide Tier I and II IT support and problem resolution.
• Manage client/server/storage/network infrastructure.
• Configure and manage RedHat Linux and Windows systems.
• Support vulnerability management using Nessus.
• Handle STE/STN scoring and documentation.
• Maintain POA&Ms and patch systems based on security and functional parameters.
• Collaborate with hardware vendors on system specs and refreshes.
• Analyze escalated issues and provide actionable feedback.

Skills

RedHat Linux

Windows troubleshooting

Nessus

POA&Ms

STE/STN

TS/SCI with Polygraph

Virtual environments

Education

Bachelor's degree in Information Technology / Information Systems / Computer Engineering

Tools

UNIX

Windows Server 2012/2016/2019

Job description

AV is seeking a System Administrator to manage and support mission-critical IT infrastructure across Windows and UNIX systems. The role involves day-to-day operations, troubleshooting, and maintenance in a multi-platform environment.

You will provide Tier I/II IT support, manage networks/servers, configure RedHat Linux and Windows, support vulnerability management with Nessus, and collaborate with vendors on system refreshes and security documentation.