Senior Windows Enterprise Domain & Server Administrator

Colsa; Huntsville (AL); On-site; USD 120,000 - 170,000; Full time

Job summary

COLSA is seeking a Senior Windows Server System Analyst to support Enterprise IT at Redstone Arsenal in Huntsville, Alabama. The ideal candidate will administer AD DS, DNS/DHCP, PKI, and patch management, while delivering Tier 3 support and ensuring DISA STIG compliance.

Experience with IIS, SQL Server, PowerShell automation, and DoD cybersecurity documentation is highly desired. This role offers collaboration across IT operations with cross-functional teams.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or other related fields.
• Active Security+CE certification.
• Minimum 10 years of prior experience in a similar role involving administration of Windows Server platforms.
• Experience as a Windows Enterprise Domain Administrator on networks with virtual and physical servers and thousands of users.
• Experience deploying, updating, and sustaining Windows Domain Controllers and Applications Servers.
• Experience with DISA STIG requirements and DoD cybersecurity documentation.
• Experience developing, testing, and executing PowerShell scripts for administration.
• Proficiency with Microsoft operating systems and Office applications.
• Active DoD Secret clearance; US Citizenship required.

Responsibilities

• Administer, maintain, and troubleshoot Active Directory Domain Services.
• Manage user accounts, computer accounts, security groups, OUs, GPOs.
• Monitor domain controllers, replication, authentication, directory synchronization, and domain trusts.
• Maintain enterprise DNS and DHCP with secure configuration and issue resolution.
• Apply OS and software updates; DISA STIG compliance and mitigation tracking.
• Develop PowerShell scripts to automate tasks and improve efficiency.
• Coordinate with Virtualization, Network, SQL & IIS, and Cybersecurity teams.
• Provide Tier 3 support via Service Desk.
• Support enterprise print and software license services.
• Prepare weekly/monthly operation and engineering status documents.
• Coordinate changes with other teams via change management processes.
• Create system design specifications to meet customer needs.

Skills

Active Directory administration

PowerShell scripting

Windows Server administration

DISA STIG & DoD cybersecurity

Group Policy Objects (GPOs)

DNS/DHCP management

Education

Bachelor's degree in Computer Science/Engineering or related field

Master's degree (preferred)

Tools

IIS

MS SQL Server

VMware vCenter / vSphere

Delinea PAM

License management systems

Job description

COLSA is seeking a Senior Windows Server System Analyst to support Enterprise IT at Redstone Arsenal in Huntsville, Alabama. The ideal candidate will administer AD DS, DNS/DHCP, PKI, and patch management, while delivering Tier 3 support and ensuring DISA STIG compliance.

Experience with IIS, SQL Server, PowerShell automation, and DoD cybersecurity documentation is highly desired. This role offers collaboration across IT operations with cross-functional teams.