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Mid-level Linux System Administrator; TS​/SCI

Job in Herndon, Fairfax County, Virginia, 20170, USA
Listing for: Vantor
Full Time position
Listed on 2026-02-15
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Job Description & How to Apply Below
Position: Mid-level Linux System Administrator (TS/SCI)

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what’s happening now and shape what’s coming next. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can:
Shape your own future, build the next big thing, and change the world.

To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status.

Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).

Please review the job details below.

Vantor is currently seeking a Linux System Administrator to join our team. This role will be performed in our Vantor facility located in Herndon, Virginia.

As a Vantor team member, you will have the opportunity to closely support our mission partners, and your work will have a direct impact on mission imperatives. In this role, you'll work as part of our infrastructure team and you will work closely with our software development Dev Ops and cybersecurity teams leveraging open-source tools to create and maintain a private cloud and big data platform.

Our customers have no shortage of unique and challenging problems to solve, and we are continuing to grow our system footprint to meet their needs.

About Us:

  • We are a multi-faceted software development and systems administration team working to build and maintain software applications backed by a self-managed cloud infrastructure with a true big-data footprint (over 10 petabytes)

  • Our diverse background of experience in mission support and full stack system development serves as a catalyst to solve unique and challenging intelligence problems in support of special operations analysts and their on-going activities.

  • Prototyping and frequent, iterative feedback are core to our delivery approach, anchored by a need to work quickly in support of our missions.

What You’ll Be Doing:

  • Infrastructure team members focus on several things on any given day including:

  • Monitoring and acting on any hardware and software outages on the platform

  • Engaging with tenants and users of the Open Stack Cloud Platform via chat services to assist them with trouble shooting and requests as needed

  • Implementing cyber security remediations in close cooperation with the cyber security team

  • Upgrading and deploying applications on the platform

  • Integrating new hardware into multiple different compute clusters

  • Reviewing and updating existing procedures and documentation

  • Engaging with the team on future hardware planning for system recapitalization and expansion

Minimum Requirements:

  • Must be a US citizen

  • Current Top Secret/SCI security clearance and willingness and ability to get a CI poly

  • Willing to work full time on-site, in a SCIF in Herndon, VA

  • 8+ years demonstrated experience (5 years with a Bachelor’s degree in Computer Science) in Linux system administration for RHEL-based Linux distributions (e.g., Red Hat Enterprise Linux, Rocky Linux, Alma Linux).

  • Experience with system administration for both physical servers and Virtual Machines

  • Certification meeting DoD 8570 / 8140 cybersecurity workforce requirements (e.g., CompTIA Security+, ISC2 SSCP, GIAC GSEC).

  • Ability to be a self-starter

  • Ability to adjust quickly to ad-hoc requests

  • Ability to support wide range of tasks (upgrade software, patching, monitoring systems, R&D)

  • Ability to collaborate and operate effectively in a diverse team covering tasks across the full technology stack

  • Ability to balance a mix of team and solo work

  • Strong verbal, written, and organizational skills

  • Experience with the configuration and use of server remote access tools such as PuTTY, MobaXTerm, Windows RDP, etc.

  • Skilled Tier 3 level support technician with mature troubleshooting skills demonstrated in complex computing…

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