Senior Cloud System Administrator

ManTech seeks a motivated, career- and customer-oriented Sr Cloud System Administrator to join our team in Hanover, MD. Our 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.Responsibilities include, but are not limited to:Provide administration and support for Windows Server 2022 environments, including Active Directory, and manage Windows 10/11 client systems.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 SaltStack 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, and other core servicesMonitor system performance, availability, and security, responding to incidents and performing root cause analysisAdminister and troubleshoot various Linux distributions (e.g., Ubuntu, CentOS, RHEL) within both cloud and on-premise contexts Minimum Qualifications:20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of similar scope and complexityBachelor’s degree in system engineering, Computer Science, Information Systems, Engineering Science, Engineering Management or related professional engineering discipline from an accredited college or university is requires. An additional 5 years of System Engineer experience may be substituted for a degreeMust hold an IAT II certification (e.g., Security+ or equivalent); candidates will have 60 days from program start to obtain itProficiency in administering Linux operating systems.Experience with Windows Server 2022 administration, including Active Directory and networkingPreferred Qualifications:Experience working in enterprise or government environmentsFamiliarity with cloud security and compliance practicesHands-on experience with Amazon Web Services (AWS) for infrastructure deployment, management, and troubleshootingStrong communication and interpersonal skills, capable of working effectively in a team environmentProficiency in administering and troubleshooting Linux distributions (e.g., Ubuntu, CentOS, RHEL).Clearance Requirements:Must have a current/active TS/SCI with PolygraphPhysical Requirements:The candidate must be able to move, carry, and deliver workstations from the office to customer desksThe person in this position must be able to remain in a stationary position 50% of the timeMust communicate with co-workers, management, and customers via email, phone, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

Created: 2025-08-14