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Captivation Software

Systems Engineer 3 - Cisco/Juniper/Arista/Windows/Linux/Kubernetes/Security

Annapolis Junction, MD$130k–$270kfull-timemidAdded today

About this role

Mid-level systems engineer role focused on maintaining critical infrastructure security, performance, and compliance in a mission-driven environment. Requires expertise in network devices, Windows/Linux administration, Kubernetes, and security protocols with a current Top Secret/SCI clearance.

What you'll do

  • Maintain system integrity, performance, and security for critical client/server environments
  • Implement and manage system administration automation across infrastructure
  • Ensure security compliance and manage patching strategies
  • Configure and manage networking devices (Cisco, Juniper, Arista)
  • Administer Active Directory, LDAP, and centralized authentication systems
  • Communicate technical issues and escalations to management and customers

What they're looking for

  • System engineering and administration
  • Security compliance frameworks
  • Cisco, Juniper, and Arista networking
  • Windows and Linux system administration
  • Kubernetes and containerization
  • Active Directory and LDAP management
  • Security protocols and vulnerability patching
  • Technical communication and problem-solving

Benefits

  • Annual salary $130,000–$270,000 based on experience
  • Work on mission-critical national security projects
  • Small, collaborative team environment
  • Direct interaction with customers and end users
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Captivation Software

Captivation Software builds high-performance computing and secure analytics infrastructure for mission-critical government programs, specializing in HPC testing, enterprise dataflow architectures, and cleared defense systems. The company is hiring senior test engineers, systems engineers, and technical leaders with deep expertise in Linux, cloud infrastructure, and security clearances to validate systems and architect solutions for intelligence community operations.

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Likely interview questions

  • Describe your experience managing security compliance in enterprise environments and which frameworks you've worked with.
  • How have you automated system administration tasks, and what tools or scripting languages did you use?
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