Windows​/Linux Cloud System Admin

Overview

Windows/Linux Cloud System Admin:
The Systems Administrator will provide operational and maintenance support for enterprise clinical data exchange applications and supporting infrastructure hosted in a cloud-based environment (VA Enterprise Cloud). This role focuses on day-to-day administration of Windows and Linux systems
, ensuring reliability, security, and performance through proactive monitoring, patching, and incident response. The position provides Tier 1-2 operational support across multiple production systems.

• Administer, configure, and maintain Windows Server and Linux systems (Red Hat, Ubuntu, Amazon Linux) supporting enterprise applications.
• Perform routine system maintenance including OS patching, vulnerability remediation, software installations, and configuration updates
  .
• Manage system services, startup scripts, scheduled tasks, cron jobs, and configuration baselines.
• Support file systems, storage utilization, system performance tuning, and capacity management.
• Validate and maintain system backups, snapshots, and recovery procedures
  .

• Monitor system health, resource utilization, and application availability using enterprise monitoring and logging tools (e.g., Cloud Watch, Splunk, Nagios, or equivalent).
• Review alerts and logs, analyze system behavior, and identify root causes of issues.
• Provide Tier 1 and Tier 2 operational support
  , including service restarts, system recovery actions, and connectivity troubleshooting.
• Participate in incident response activities and maintain operational runbooks and troubleshooting documentation.

• Apply system hardening, patching, and configuration standards aligned with CIS benchmarks and federal security requirements (RMF, FISMA, FedRAMP).
• Support Authority to Operate (ATO) activities by maintaining compliant system configurations, patch baselines, and asset inventories.
• Work with cybersecurity teams to remediate vulnerabilities identified through scanning tools such as Nessus or Tenable.
• Ensure least-privilege access and proper credential management on Windows and Linux systems.

• Support systems hosted in AWS-based environments by maintaining compute instances, storage, and networking configurations as needed.
• Assist with system recovery, scaling activities, and environment maintenance using existing cloud tooling and processes.
• Collaborate with cloud engineers and developers to support application deployments and operational stability.

• Maintain system documentation including operating procedures, configuration standards, and architecture diagrams.
• Develop and maintain scripts for administrative tasks using Power Shell, Bash, or Python.
• Contribute to continuous improvement of monitoring, alerting, and operational processes.

• 3+ years of experience as a Systems Administrator supporting production Windows and Linux environments
  .
• Strong hands-on experience with Windows Server and Linux OS administration
  , patching, and troubleshooting.
• Experience responding to system alerts and incidents in a 24x7 production environment.
• Familiarity with system monitoring and logging tools (Splunk, Cloud Watch, Nagios, Datadog, or similar).
• Working knowledge of scripting and automation (Power Shell, Bash, Python, Ansible).
• Strong problem-solving skills and ability to operate under time-sensitive conditions.

• Experience supporting systems hosted in cloud environments (AWS, Azure, or Gov Cloud).
• Familiarity with VA or other federal enterprise IT environments
  .
• Understanding of federal security frameworks (RMF, FISMA, FedRAMP).
• Experience supporting ATO-authorized systems.
• Linux (RHCSA/RHCE) or Microsoft Windows Server certifications.
• Active Public Trust or ability to obtain VA suitability clearance.

• Remote support for production Windows and Linux systems hosted in cloud and VA environments.
• Participation in an on-call rotation for critical system support.
• Regular collaboration with developers, cybersecurity teams, QA, and help desk staff.