Cloud SR Systems Administrator

Defense Acquisition Support Services (DAS) is seeking an experienced Senior Systems Administrator to support the U.S. Army's Distributed Common Ground System–Army (DCGS-A) program at Aberdeen Proving Ground (APG), Maryland.

The ideal candidate will have extensive experience administering Microsoft Azure Government cloud environments
, managing secure enterprise infrastructure, troubleshooting complex systems, and maintaining cybersecurity compliance within Department of Defense (DoD) environments.

This position requires hands-on expertise in Azure Government, cArmy, ECMA, Microsoft Entra , Role-Based Access Control (RBAC), vulnerability management, and advanced network troubleshooting
. The selected candidate will support mission-critical cloud infrastructure, system administration, security compliance, and application hosting to ensure operational reliability and mission readiness.

• Administer, configure, and maintain secure Microsoft Azure Government cloud environments across multiple subscriptions, including Army cArmy and Enterprise Cloud Management Agency (ECMA) frameworks.
• Deploy, configure, and manage cloud infrastructure, including virtual machines, storage, networking components, identity services, and application hosting environments.
• Support Linux-based application workloads using container technologies and Azure App Services, including One Deploy deployment methods.
• Manage secure remote administrative access using Remote Desktop Protocol (RDP), privileged accounts, and approved connectivity protocols.
• Monitor, document, and maintain Information Assurance Vulnerability Management (IAVM) compliance and implement Security Technical Implementation Guides (STIGs).
• Analyze and execute technical requirements associated with Cyber Tasking Orders (CTOs) and cybersecurity directives.
• Troubleshoot complex system outages, network connectivity issues, firewall configurations, proxy traffic, and cloud infrastructure performance.
• Utilize packet capture and network analysis tools, including Wireshark, to diagnose and resolve connectivity and system performance issues.
• Perform above-baseline software updates, application deployments, system configurations, and validation activities in coordination with the Managed Service Provider (MSP).
• Develop and execute administrative scripts using Azure CLI and Power Shell to automate operational tasks and improve system efficiency.
• Administer Microsoft Entra , Role-Based Access Control (RBAC), security groups, and enterprise identity and access management services.
• Troubleshoot complex authorization configurations, including nested security groups, dynamically assigned roles, and custom application permission structures.
• Document, track, and resolve technical incidents and service requests using enterprise ticketing and service desk systems.
• Collaborate with cybersecurity personnel, cloud engineers, application developers, and government stakeholders to maintain secure and reliable systems.
• Provide clear technical documentation, troubleshooting reports, and status updates to government customers and internal teams.

• Must possess an active Top Secret/SCI security clearance.
• Experience administering Microsoft Azure Government environments, including Army cArmy, ECMA, or similar DoD cloud platforms.
• Strong knowledge of Azure infrastructure, including virtual machines, storage, networking, subscriptions, and identity management.
• Experience managing Microsoft Entra , Role-Based Access Control (RBAC), security groups, and access permissions.
• Knowledge of DoD cybersecurity requirements, including STIGs, IAVM compliance, and Cyber Tasking Orders (CTOs).
• Strong troubleshooting skills involving cloud systems, network connectivity, firewalls, proxies, and packet analysis tools such as Wireshark.
• Proficiency with Azure CLI and Power Shell for system administration, scripting, and automation.
• Experience with secure remote access, including RDP and privileged account management.
• Experience supporting Linux environments, containers, Azure App Services
  , and application deployments.
• Ability to perform software updates, troubleshoot system issues, and document resolutions using enterprise ticketing systems.
• Strong communication, documentation, and collaboration skills when working with technical teams and government customers.
• CompTIA Security+ or equivalent DoD IAT Level II certification is required.
• Must possess one of the following:
  Microsoft Azure Administrator Associate (AZ-104),…