Onsite Systems Administrator (Linux/Windows) – DoD Secret

Apex Systems; Baltimore (MD); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health insurance

401K

ESPP

HSA

EAP counseling

Discount program

Job summary

Apex Systems is seeking a Systems Administrator 2/3 for our Linthicum, MD campus on-site. The role involves deploying, securing, and maintaining Windows and Red Hat Linux environments, managing vulnerabilities, and coordinating with security teams to support DoD-focused programs.

The position requires a DoD Secret Clearance, strong experience with STIGs, VMware, backups, and Splunk, and a hands-on approach to building reliable infrastructure.

Qualifications

• Associate's degree with 7 years of experience, or a Bachelor's degree with 5 years, or a Master's degree with 3 years, or a High School diploma with 9 years.
• Must be willing to obtain a DoD Secret Clearance before starting program work.
• CompTIA Security+ (Sec+) or equivalent.
• Experience managing Red Hat Enterprise Linux (RHEL) OS and Windows Server OS; familiarity with VMware.

Responsibilities

• Perform as a Linux/Red Hat and Windows Systems Administrator.
• Deploy and harden RHEL servers, apply STIGs, and manage patching and vulnerabilities.
• Maintain the smooth operation of computer infrastructure, coordinating with various engineering and security teams.
• Recommend and implement system enhancements to improve performance and reliability.
• Provide backup and recovery services and manage data storage devices.
• Create and maintain user accounts and manage file permissions.
• Develop and document technical processes and procedures.
• Familiarity with DoD STIGs and working with IT/IA to develop POA&M's for vulnerabilities.
• Manage Splunk environments, including indexers, search heads, and creating dashboards.

Skills

Linux/Red Hat Admin

Windows Server Admin

Scripting

Networking basics

Security fundamentals

Education

Associate's degree + 7 years

Bachelor's degree + 5 years

Master's degree + 3 years

High School diploma + 9 years

Tools

Splunk

RHEL

Windows Server

VMware

Job description

Apex Systems is seeking a Systems Administrator 2/3 for our Linthicum, MD campus on-site. The role involves deploying, securing, and maintaining Windows and Red Hat Linux environments, managing vulnerabilities, and coordinating with security teams to support DoD-focused programs.

The position requires a DoD Secret Clearance, strong experience with STIGs, VMware, backups, and Splunk, and a hands-on approach to building reliable infrastructure.