Senior Systems Administrator, Cross Domain (R4901) Legal Division Security Washington, DC Washington, DC Full Time Employee 97000 - 140000 Founded in 2015, Shield AI is a venture-backed deep-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT and X-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices and facilities across the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment) Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information. ### Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know. What you'll do:

Cross Domain Solutions (CDS) Operations & Support:

Administer, monitor, and maintain Cross Domain Solutions (e.g., guards, filters, data diodes, and transfer systems).

Support configuration, patching, auditing, and monitoring of CDS systems.

Troubleshoot CDS-related data flow issues.

Coordinate with cybersecurity and engineering teams.

Classified Systems Administration:

Maintain classified and CUI systems ensuring availability and security.

Provide technical support for engineering and integration efforts.

Enforce security policies aligned with RMF and NIST standards.

Documentation & Compliance:

Maintain accurate system documentation.

Support audit readiness and compliance requirements.

Infrastructure & Deployment:

Assist with installation of servers, network equipment, and CDS appliances.

Perform system imaging and deployment.

Planning & Integration:

Support design of classified systems and cross domain architectures.

Collaborate on secure integrations across classification levels.

Required qualifications:

3–5 years Systems Administrator experience in classified environments.

Experience with Cross Domain Solutions or MLS environments.

Linux (Ubuntu/RHEL) and Windows Server experience.

Familiarity with RMF and NIST 800-53.

Networking experience (Cisco/Juniper/Palo Alto).

Security+ Certification

Preferred qualifications:

Experience with CDS tools (Radiant Mercury, Owl, Everfox, etc.)

Knowledge of Raise-the-Bar requirements

Scripting (PowerShell, Python, Bash)

Mixed OS environment experience

Bachelor’s degree or equivalent experience

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