• Senior Systems Administrator

    ManTech (Lothian, MD)


    **MANTECH** seeks a motivated, career and customer-oriented **Senior Systems Administrator** to join our team in **Patuxent River, MD.** This is a full-time **onsite** position.

    Responsibilities include but are not limited to:

    + Create software applications, test and evaluate applications, and tweak and improve applications to make them user-friendly.

    + Assist in the definition, development, testing, analysis, and maintenance of new or existing software applications in support of the achievement of business requirements. This may include writing, coding, testing, and analyzing software programs and applications.

    + Update software or enhance existing software capabilities. May work with computer hardware engineers to integrate hardware and software systems and develop specifications and performance requirements.

    + May maintain databases within an application area, working individually or coordinating database development as part of a team.

    + May deploy and administer on-premises systems (e.g. VMware, Horizon, ESXi, WYSE) with an emphasis on high availability, scalability, and cost optimization.

    + Develop and maintain automation scripts using tools like Terraform, Ansible, and PowerShell.

    + Collaboration with DevOps, software engineering, and security teams to optimize system performance and reliability

    Minimum Qualifications:

    + ​ Mater’s degree in technical or business discipline with 8+ years of systems administration or similar work experience, or a Bachelor’s degree plus 12+ years of experience, or an Associates degree with 14 years of experience may be substituted for the Master’s degree

    + 5+ years of experience in Systems Administration or Engineering of Virtualization, High Performance Computing (HPC), storage, and networking

    + Experience building and administering systems using Red Hat Enterprise Linux (RHEL) 8.10, Windows 11 Enterprise, and/or Windows Servers 2019/2022 Enterprise

    + Experience administering VMware environments (vSphere, vCenter, ESXi, VMware Horizon VDI)

    + Strong knowledge of cybersecurity compliance, including STIGs, ATO processes (RMF), and vulnerability management tools (e.g., Tenable Security Center, Nessus, and Evaluate-Stig)

    Preferred Qualifications:

    + Experience with DoD or Navy cybersecurity mandates and cross-domain solutions

    + Certifications such as Linux+, Cisco CCENT, or Microsoft MCSA/MCSE

    + Knowledge of COMSEC principles and training

    Clearance Requirements:

    + Must be a U.S. Citizen and possess a current/active Top Secret Clearance

    Physical Requirements:

    + The person in this position must be able to remain in a stationary position 50% of the time.

    + Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication.

     

    ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

     

    If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at [email protected] and provide your name and contact information.