Server Administrator II

Agile Defense; Alabama; On-site; USD 65,000 - 95,000; Full time

Job summary

Agile Defense, Inc. is seeking a Junior/Mid-Level Server Administrator to support DoD-grade IT infrastructure at Redstone Arsenal, AL. The role focuses on implementing and validating DISA STIGs across Windows and Linux, maintaining secure configurations, and contributing to documentation and compliance efforts.

The candidate will work with VMware ESXi, OpenShift, and GitOps workflows, with strong emphasis on security, policy adherence, and collaborative problem-solving in a DoD environment.

Qualifications

• Security+ within 6 months is required.
• 5+ years IT experience with a security focus.
• High School Diploma or GED required.
• Active Secret Security Clearance required.
• Onsite work at Redstone Arsenal, AL is required.

Responsibilities

• Implement, assess, and remediate DISA STIGs on Windows Server and RHEL.
• Validate compliance using STIG Viewer, SCC, Evaluate-STIG, and similar tools.
• Administer DHCP, DNS, Group Policy, and Active Directory on Windows servers.
• Support VMware ESXi, Horizon VDI, and Dell thin clients.
• Perform Linux CLI administration, patching, hardening, and config management.
• Support Red Hat OpenShift and GitOps workflows as needed.
• Maintain clear documentation of configurations, findings, remediation steps, and changes.

Skills

Windows Server

Linux

Active Directory

PowerShell

Education

Security+ Certification

High School Diploma or GED

Tools

VMware ESXi

OpenShift

GitOps

STIG Viewer

Job description

About Agile Defense

At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.

Our vision is to bring adaptive innovation to support our nation’s most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.

Requisition #: 1990

Job Title: Junior/Mid-Level Server Administrator

Location: Redstone Arsenal, AL | Onsite

Clearance Level: Secret Required, Must have clearance to start

Certification(s): Security+ce, within 6 months

Job Description

The Office of the Chief Information Officer (OCIO) provides Information Technology (IT) support to PAE FIRES which is a Continental United States (CONUS) organization. The OCIO provides centralized life cycle management, direction, guidance, and support for the acquisition, sustainment, maintainability, supportability, and implementation of the PAE, Information Mission Area (IMA). PAE FIRES is an approved Data Center providing hosting to multiple organizations throughout the US Army Acquisition community.

We are seeking a Junior/Mid-Level Server Administrator to support server administration, security hardening, and compliance with Department of Defense (DoD) cybersecurity requirements. This role focuses on implementing and validating DISA Security Technical Implementation Guides (STIGs), maintaining secure server configurations, and supporting Windows and Linux infrastructure. Strong technical documentation skills, attention to detail, and commitment to security are essential.

JOB DUTIES AND RESPONSIBILITIES

• Implement, assess, and remediate DISA STIGs on Windows Server and Red Hat Enterprise Linux (RHEL) systems.
• Validate compliance using STIG Viewer, SCAP Compliance Checker (SCC), Evaluate-STIG, and similar tools.
• Administer and troubleshoot DHCP, DNS, Group Policy, and Active Directory services on Windows servers.
• Support VMware ESXi, Omnissa Horizon VDI, and Dell thin client environments.
• Perform Linux command-line administration, server patching, security hardening, and configuration management.
• Support Red Hat OpenShift and GitOps workflows as needed.
• Maintain clear, accurate documentation of system configurations, STIG findings, remediation steps, procedures, and infrastructure changes.
• Collaborate with co-workers, users, technicians, and cybersecurity teams to resolve technical issues and maintain compliance with applicable DoD and NIST standards.

QUALIFICATIONS Required Certifications

Security+ce, within 6 months

Education, Background, and Years of Experience

• High School Diploma/GED
• Experience: 5 Years + of IT Experience, Background – IT
• Education: Security+ (at minimum)

ADDITIONAL SKILLS & QUALIFICATIONS Required Skills

• Active Secret Security Clearance

• Working knowledge of Windows Server, Linux command-line operations, and Red Hat Enterprise Linux.

• Familiarity with DISA STIGs, server hardening, and security compliance.

• Experience with DHCP, Group Policy, and Active Directory.

• Strong technical writing, documentation, troubleshooting, and problem-solving skills.

• Ability to follow technical standards, document work accurately, and validate configuration changes.

Preferred Skills

• Experience with VMware ESXi, Omnissa Horizon VDI, and thin client administration.

• Familiarity with Red Hat OpenShift and GitOps.

• Experience with PowerShell scripting, task automation, and configuration management.

• Familiarity with STIG Viewer, SCC, Evaluate-STIG, and vulnerability assessment tools.

• Understanding of applicable DoD and NIST security requirements.

• CompTIA SecurityX certification or equivalent industry certification.

WORKING CONDITIONS Environmental Conditions

100% Onsite Support Required. Contractor site with 0%-10% travel possible. Possible off-hours work to support releases and outages. General office environment. Work is generally sedentary in nature but may require standing and walking for up to 10% of the time. The working environment is generally favorable. Lighting and temperature are adequate, and there are not hazardous or unpleasant conditions caused by noise, dust, etc. Work is generally performed within an office environment, with standard office equipment available.

Strength Demands

Sedentary – 10 lbs. Maximum lifting, occasional lift/carry of small articles. Some occasional walking or standing may be required. Jobs are sedentary if walking and standing are required only occasionally, and all other sedentary criteria are met.

Typical Physical Requirements

Ability to remain in a stationary position (sitting/standing) for extended periods, upto [X] hours
Ability to operate a computer and other office equipment, including frequent use of hands for typing
Ability to communicate effectively in person, by phone, and in writing
Occasionally move about the office to access files, equipment, or attend meetings
Visual acuity sufficient to read printed and electronic documents, and to view a computer screen for extended periods.

Our Core Values

• Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do.
• Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated.
• Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support.
• Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.
• Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges.
• Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities