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Systems Administrator, Senior

Job in Corridor North, Howard County, Maryland, USA
Listing for: Navstar Inc.
Per diem position
Listed on 2026-02-16
Job specializations:
  • Engineering
    Cybersecurity, Systems Engineer
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Location: Corridor North

Navstar Inc.

Location:

Annapolis Junction, MD

Required Clearance Level:
TS/SCI with Polygraph

Would you like to perform rewarding work while contributing to the success of an established, growing company? Navstar is an award-winning organization that has a proven track record of successfully providing IT services and solutions both as a prime and sub-contractor on mission-focused IT programs. Our employees are integral players in support of mission-critical programs focused on our National Security.

Role

Description:

The selected individual will be responsible for system administration support activities for a large, complex network environment with geographically distributed systems. The position entails supporting solutions for system engineering requests that meet operational needs, as well as upgrading and maintaining capabilities. The selected candidate must be comfortable working in a fast-paced environment with multiple air-gapped systems which have individual domains and supporting infrastructure, and with maintaining a complex IT environment with multiple logins and associated supporting storage and network infrastructure.

The role requires an energetic, focused, and driven individual who can adapt well to a changing environment. The selected candidate must possess strong system administration and troubleshooting skills and must be able to adapt quickly with the team to undertake various system administration network-centric tasking.

Responsibilities Include:
  • The selected individual will be responsible for installing and administrating systems, applications, and processes, and for ensuring that all issues are identified and resolved in a timely manner.
  • The applicant will be responsible for ensuring server and desktop configurations are optimized and running continuously and efficiently. The individual will also perform security management and application performance optimization functions.
Additional responsibilities may include:
  • Administration/sustainment of a system that provides a web-based application for storing, sharing, and distributing information.
  • Creating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations.
  • Identifying and correcting hardware and software issues.
  • Responding to system administration, operations, and maintenance problems, and developing re-work solutions.
  • Creating and maintaining documentation of complex server/network environments to ensure that clear, concise and accurate information is readily available for incident resolution.
  • Communicating with users and external support personnel regarding system outages and upgrades, and conferring with upper management regarding recommended resolution options.
Required Skills and Qualifications:
  • To be eligible for this position you must hold an active TS/SCI clearance with Polygraph.
  • Bachelor's Degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least 8 years of relevant experience. Additional experience may be substituted for a degree.
  • Must have experience as a systems administrator providing direct support to end users and technical staff (developers, testers, engineers, etc.).
  • Must be proficient with Windows Server, 2016, 2019, and Active Directory.
  • Must have experience with Linux and Microsoft-based servers and workstations.
  • Must have experience with OS and Application Hardening to include DISA, Best Practices, and High Assurance environments.
  • Must have experience with software/hardware deployment, patches, and operating systems, and basic system backup and restore functions.
  • Must have experience with and/or have knowledge of Red Hat 7 and 8, and VMWare.
  • Must have experience with Apache Tomcat, IIS, and/or SQL server database.
  • Must have experience documenting and providing information for security accreditation and certification.
  • Must have a solid understanding of advanced security protocols and standards.
  • Must have experience with Network Security Technologies (e.g. Multiple Domain, PKI, SSP, and Vulnerability Assessment).
  • Must have experience with both Client and Server virtualization environments.
  • Must have experience with installation, configuration, troubleshooting, and reimaging hardware.
  • Must have experience with disk arrays, Power Shell and Power

    CLI, KVMs.
  • Must have knowledge of PKI systems which use HSMs.
  • Knowledge of NTP servers for time synchronization.
  • Must have experience optimizing system operations.
  • Must have a solid understanding of information security principles and practices.
  • Must have experience with or familiarity with software and security architectures.
  • Must be able to support occasional day or short duration travel, if needed.
  • To be considered for this role, candidates must meet the requirements for one of the following skill levels:
    • Senior: Five (5) years experience as a SA, in programs and contracts of similar…
Position Requirements
10+ Years work experience
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