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Senior System Administrator I

Rocket Lab · Chantilly, VA · On-site

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About Rocket Lab

The end-to-end space company delivering reliable launch services, spacecraft, satellite components. Backed by Bessemer and Khosla.

About the role

Based onsite at Rocket Lab's Chantilly, VA Facility, the System Administrator will support and manage critical, classified IT infrastructure within a secure environment. This role involves deploying and maintaining essential computer systems while ensuring full compliance with strict security requirements. You’ll be working closely with security personnel and engineering teams. Found on 1752vc Careers, the job board for startup and VC roles.

What they're looking for

  • Must be a U.S. Citizen with a current Tier 5 investigation (formerly SSBI) and must maintain an active Top Secret/SCI clearance with polygraph, as required by program sponsor(s)
  • 5+ years of experience & a Bachelor's degree or equivalent years of work experience (9+ years of total work experience)
  • Must possess DoD 8140 Intermediate or Advanced certification (e.g. Security+, Cloud+, CISSP, CISM, CEH, or equivalent)
  • Strong working knowledge of security frameworks: NIST 800-53, STIGs
  • Hands-on experience with: Windows Server, Linux (Ubuntu/RHEL), VMware vSphere, Docker, FortiGate/FortiOS, Cisco IOS, ACAS, Splunk, Trellix
  • Willingness to travel up to 20% (occasional overnight), work extended hours and weekends as mission requires
More about this role

Rocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity’s reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us.

Based onsite at Rocket Lab's Chantilly, VA Facility, the System Administrator will support and manage critical, classified IT infrastructure within a secure environment. This role involves deploying and maintaining essential computer systems while ensuring full compliance with strict security requirements. You’ll be working closely with security personnel and engineering teams. The position is vital to sustaining the high-stakes infrastructure behind launch systems, spacecraft development, and national security programs, requiring strong attention to detail, a sense of urgency, and a commitment to operational excellence.

  • Deploy and administer classified IT infrastructure, to include endpoints, servers, and network devices
  • Monitor systems, respond to incidents, and proactively optimize performance and security posture
  • Implement and maintain hardened system...

Read the full posting on Rocket Lab's site ↗

OS - Security

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