Senior Systems Administrator / Infrastructure Engineer - TS Clearance Chantilly, VA

Eighty20 Collective

Senior Systems Administrator / Infrastructure Engineer - TS Clearance

Full Time • Chantilly, VA
Benefits:
  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Paid time off
  • Parental leave
  • Profit sharing
  • Training & development
  • Tuition assistance
  • Vision insurance

Senior Systems Administrator / Infrastructure Engineer


Clearance Requirement: Active Top Secret/SCI clearance with the ability to successfully obtain and maintain a Polygraph.

Work Schedule

This position requires a commitment to one of the following support shifts:

  • Morning shift beginning at 6:00 AM Eastern

  • Evening shift ending at 10:00 PM Eastern
About the Opportunity
We're seeking an experienced Administrator / Help Desk Engineer to support secure, mission-critical environments that enable software development teams and mission users to deliver capabilities supporting national security.

Success in this role requires strong technical expertise, a proactive mindset, and a passion for solving complex problems. If you enjoy troubleshooting challenging issues, automating repetitive tasks, modernizing infrastructure, and directly supporting mission-critical operations, you'll have the opportunity to make a meaningful impact while continuing to grow your technical skills.
Primary Responsibilities

  • Administer, maintain, and troubleshoot Linux and Windows server environments supporting mission-critical systems.

  • Serve as a primary technical support resource for end users by diagnosing and resolving hardware, software, operating system, and application issues.

  • Manage support requests through resolution while delivering timely, professional customer service.

  • Deploy, configure, harden, patch, and maintain operating systems in accordance with DoD STIGs and organizational security requirements.

  • Administer virtualization platforms including VMware and KVM.

  • Monitor infrastructure health, analyze system performance, perform root cause analysis, and proactively resolve issues.

  • Support enterprise storage, backup and recovery solutions, disaster recovery planning, and continuity of operations.

  • Develop and maintain automation using tools such as Ansible, PowerShell, Bash, or Python.

  • Maintain system documentation, configuration baselines, and support configuration and release management activities.

  • Collaborate with software engineers, DevSecOps, cybersecurity, cloud, and network engineering teams to ensure reliable and secure operations.

  • Support system deployments, upgrades, modernization efforts, and infrastructure improvements.

  • Participate in security audits, vulnerability remediation, incident response, and operational readiness activities.

  • Lead technical troubleshooting efforts and provide guidance on complex infrastructure issues.

Basic Qualifications

  • U.S. Citizenship required.

  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical discipline with 8–12 years of relevant experience, or a Master's degree with 6–10 years of relevant experience.

  • Active Top Secret/SCI clearance with the ability to successfully obtain and maintain a Polygraph.

  • DoD 8570 IAT Level II or Level III certification (Security+ CE, CASP+, CISSP, or equivalent).

  • Experience administering Red Hat Enterprise Linux (RHEL), CentOS, and Windows Server environments.

  • Experience supporting cloud platforms such as AWS GovCloud, Azure Government, or hybrid cloud environments.

  • Experience with virtualization technologies including VMware and KVM.

  • Experience developing automation using Ansible, PowerShell, Bash, or Python.

  • Experience implementing STIGs, system hardening, ACAS remediation, and RMF security requirements.

  • Strong understanding of enterprise networking, storage technologies, identity and access management, and authentication services.

  • Experience troubleshooting complex infrastructure and user support issues in enterprise environments.

  • Strong written and verbal communication skills with the ability to document technical procedures and communicate effectively with technical and non-technical users.

  • Ability to work independently while collaborating effectively within cross-functional engineering teams.

  • Experience supporting classified DoD or Intelligence Community environments.

Preferred Qualifications

  • Experience supporting GEOINT missions or geospatial systems.

  • Experience with DevSecOps tools and technologies such as Git, Jenkins, Docker, or Kubernetes.

  • Experience administering enterprise services including Active Directory, DNS, DHCP, PKI, and certificate management.

  • Experience supporting enterprise backup and recovery solutions.

  • Familiarity with Infrastructure as Code and configuration management best practices.

  • Experience working in Agile software development environments.
Work Locations

This position may be performed from one of the following locations. Gaithersburg, MD is the primary work location.

  • Gaithersburg, MD

  • Alexandria, VA

  • Chantilly, VA

  • Englewood, CO

  • St. Louis, MO

  • Tucson, AZ

Compensation: $125,000.00 per year




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