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Eis System Administrator Jobs (NOW HIRING)

ManTech

Senior Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

This role directly supports the Enterprise Infrastructure Services (EIS) organization-the ... System Administrator or related experience in programs and contracts of similar scope, type, and ...

ManTech

Senior Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team ... This role directly supports the Enterprise Infrastructure Services (EIS) organization-the ...

MANTECH

Windows/Linux Systems Administrator

MD

This position supports the high-visibility Enterprise Infrastructure Services (EIS) organization ... Manages IT system infrastructure, configuration, operation, and any processes related to the ...

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How much do eis system administrator jobs pay per year?

As of Sep 13, 2026, the average yearly pay for eis system administrator in the United States is $88,927.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $104,000.00 per year, depending on experience, location, and employer.

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Senior Cloud System Administrator with Security Clearance

Annapolis Junction, MD • On-site

MANTECH
IT Services • 5 - 10K employees
Learn more about MANTECHexternal

Other

Re-posted 8 days ago

ManTech rating

8.8

Company rating: 8.8 out of 10

Based on 15 frontline employees who took The Breakroom Quiz

Job description

MANTECH seeks a motivated, career- and customer-oriented Sr Cloud System Administrator to join our team in Annapolis Junction, 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: * Provide administration and support for Windows Server 2019 and 2022 environments, including Active Directory, DNS, Certificate Authorities and manage Windows 10/11 client systems.
* Administer and troubleshoot various Linux distributions (e.g., RHEL8/9, AmazonLinux 2023) within AWS.
* Deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premises server infrastructure.
* Develop, implement and maintain automation scripts and configurations using SaltStack, Ansible, Bash and Python to streamline infrastructure provisioning, configuration management and deployment processes.
* Collaborate with development teams to support integration and operational stability of auto scaled software deployments and CI/CD pipelines, ensuring smooth and reliable software deployments.
* Administer, monitor, and troubleshoot AWS cloud resources, including EC2, S3, VPC, IAM, and other core services.
* Monitor system performance, availability, and security, responding to incidents and performing root cause analysis. Minimum Qualifications: * 15+ 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, Engineering Management or related professional engineering discipline. An additional 5 years of System Administrator experience might be substituted for a degree.
* Must hold an IAT II certification (e.g., Security+ or equivalent); In absence of having a certification, candidate will have 60 days from program start to obtain it * 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 Preferred Qualifications: * 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., RHEL8/9, AmazonLinux 2023). Clearance Requirements: * Must have a current/active TS/SCI with Polygraph Physical Requirements: * The candidate must be able to move, carry, and deliver workstations from the office to customer desks
* 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, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

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