To our valued Leidos candidates:

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Job #: R-00062866
Location: Columbia, MD
Category: Systems Administration
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance: Top Secret/SCI with Polygraph
Referral Eligibility: Eligible
Referral Bonus Amount: $5,000.00
Group: Intelligence

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Job Description:

Leidos is looking for a Domain / Passive Optical Network Systems Administrator to work within the Services Support Team. The successful candidate will work under our IT manager maintaining the health of Thin clients, Servers and network architecture, including Cisco and Juniper fiber switches as well as Passive Optical LAN networks, spanning 4 floors. As part of the hardware support, you will be repairing, upgrading, applying patches, and performing Microsoft Domain Administration. A remedy ticketing systems will be used in prioritizing actions.  Other responsibilities include researching the latest technologies and making recommendations on future technology direction to the IT manager as well as tracking of SCIF assets and confirming compliance with customer patching requirements. Expect to have significant interaction with the Leidos end users on a daily basis. Expect hands on hardware, taking down and setting up different user spaces and performing asset destruction processes.


  • This individual will be responsible assisting System Administrators in server/router/firewall/PON configuration, account creation, security management, and application performance optimization functions.
  • The environment includes Sidewinder Firewall, Web filtering and IDS systems, Microsoft-based servers, databases, and PC workstations as well as HP thin clients, and network connected printers
  • Network Connectivity support which includes a local LAN enclave.
  • Troubleshooting and repair may include traveling to 3 other different sites to perform work within 6 miles radius when needed.
  • Responding to system administration, operations, and maintenance problems while off duty, on an on-call basis. This includes coverage of evenings and weekends on a rotation schedule providing network support issues as some Leidos programs operate 24X7.
  • A self-starter, excellent communicator as well as the ability to pay attention to detail. Some work includes many steps and the ability to handle detail is a must.
  • Hands-on experience and the ability to use tools to repair PCs and rack equipment required. Creation of simple RAID’s and Windows Server setup, deployment and migrations. Ability to replace hardware components of a computer or server.
  • Monitor and maintain health of Uninterruptible Power systems (UPS) located in multiple secure areas.
  • Assist with compliance reporting / data generation / compliance with the customers Secure the Enterprise (STE) efforts working closely with the ISSO.
  • Working with others to expand / reconfigure fiber infrastructure, which includes working in zone boxes, Data closets, and in the ceiling.
  • Keep hardware and software asset lists up to date and accurate.
  • Assist Programs with HS phone issues / repair.
  • Asset management tracking, labeling and destruction.
  • Assist in Procedure documentation creation and updates
  • Monitor the Health of an Unclass Cisco Call manager, reset passwords and setup new VM boxes for Tenants.

Qualifications - Internal

BASIC QUALIFICATIONS: (list the “must have” requirements to be considered for hire)

  • Bachelor's degree in related technical discipline and 4+ years' experience, or 6+ years of operating systems experience. 
  • TS/SCI clearance  with Poly is required
  • Understanding of basics in Microsoft Domain Administration
  • Must be an independent thinker capable of working proficiently independently as well as within a team
  • Must be able to interact effectively with Leidos End users and other System administrators.
  • Maintain good Personal Hygiene.
  • Must have an active Top Secret/SCI with Polygraph Clearance.
  • Must be able to obtain a SYS1 level clearance to perform high side Domain administration.
  • Must be willing to learn, administer, maintenance and program of the Motorola / Arris Optical line terminal (OLT) and corresponding desk top optical network terminals (ONT).
  • Basic Network understanding with TCP/IP protocols
  • Experience with PC and Server hardware and OS maintenance.
  • User of Microsoft office Word, Excel, Visio and MS Paint.


  • Assist Senior Admin Maintain a complex server-based enclave, including performing system scans, vulnerability management activities, and active directory configuration
  • Planning and implementing IT enhancements and undertaking project work and delivering results timely and cost effectively.
  • Developing and implementing migration plans and coordinating redesign efforts with the system engineering teams
  • Identifying and correcting hardware and software issues.
  • Providing network administrative for development, deployment, and problem identification and remediation of the Microsoft Windows enterprise network environment
  • Responding to system administration, operations, and maintenance problems while off duty, on an on-call basis.
  • Working with Cabling Subcontractors to direct cabling projects.
  • Must be willing to continue training on Windows domain support administrator as well as Passive Optical LANs that utilize Motorola Tel labs or Zhone OLT / ONT architectures.
  • Ability to move up to 60lbs, Racking and stacking servers, moving PC workstations, deploying phones.

PREFERRED QUALIFICATIONS: (list additional “pluses or nice to have” skills/experience)

  • ITIL Foundation certification
  • CCNA Certification.
  • Security + TIA Certification.
  • Microsoft Certified Professional
  • Facility Infrastructure experience.


External Referral Bonus:


External Referral Bonus $:


Potential for Telework:


Clearance Level Required:

Top Secret/SCI with Polygraph



Scheduled Weekly Hours:




Requisition Category:


Job Family:

Systems Administration

Pay Range:

COVID Response

Please note that effective October 1, to enter Leidos facilities in the U.S. and to attend Leidos business events outside of our facilities, employees, vendors, subcontractors, and visitors will be required to be vaccinated or maintain proof of a weekly negative COVID-19 test. In addition, we are receiving guidance from certain customers that onsite contractor personnel will need to be fully vaccinated or able to show negative COVID-19 test results to access facilities. If you are not vaccinated, please consider getting your COVID-19 vaccination as soon as possible. 

About Leidos

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, civil, and health markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $12.30 billion for the fiscal year ended January 1, 2021.  For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [email protected].

Commitment to Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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