Senior Cloud System Administrator

MANTECH seeks a motivated, career and customer-oriented Senior
Cloud System Administrator in Annapolis Junction, MD.

The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort supports the Enterprise Infrastructure Services (EIS) organization, which oversees MPO’s Enterprise Information Technology (EIT)—the backbone platform for all enterprise users.

• Provide administration, troubleshooting, and general support for Windows Server 2022 environments, Windows 10/11 client systems, and various Linux distributions (e.g., Rocky, CentOS, RHEL) within both cloud and on-premise.
• Architect, deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premise server infrastructure.
• Develop, implement and maintain automation scripts and configurations using Salt Stack to streamline infrastructure provisioning, configuration management and deployment processes.
• Collaborate with development teams to support integration and operational stability of CI/CD pipelines, ensuring smooth deployment and reliable software deployments.
• Administer, monitor, and troubleshoot AWS cloud resources, including EC2, S3, VPC, IAM, AMIs, Route 53, work spaces, and other core services.
• Monitor system performance, availability, and security, responding to incidents and performing root cause analysis.
• Track and manage licenses and certificates.

• 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of similar scope and complexity.
• Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science. An additional 5 years of System Engineer experience might be substituted for a degree.
• Must hold an IAT II certification (e.g., Security+ or equivalent). If you don't have this, you'll be required to obtain it within 60 days of your program start date.
• Proficiency in administering Linux operating systems.
• Experience with Windows Server 2022 administration, including Active Directory and networking.
• Proven experience as a System Administrator or Cloud Engineer with practical knowledge of cloud environments.

• Experience working in enterprise or government environments.
• Familiarity with cloud security and compliance practices.
• Hands‑on experience with Amazon Web Services (AWS) for infrastructure deployment, management, and troubleshooting.
• Strong communication and interpersonal skills, capable of working effectively in a team environment.
• Proficiency in administering and troubleshooting Linux distributions (e.g., Ubuntu, CentOS, RHEL).

• Must have a current/active TS/SCI w/ Polygraph.
• Must be a US Citizen.

• The candidate must be able to move, carry and deliver workstations from inside the office to customer’s desk. The person in this position must be able to remain in a stationary position 50% of the time. Must communicate with co‑workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.