IT Systems Engineer I: Secure Mission IT Ops

Arion Systems, Inc.; Chantilly (VA); On-site; USD 105,000 - 130,000; Full time

Job summary

Arion Systems, Inc. (ASI) is seeking an IT Systems Engineer I/II to support mission‑critical IT systems in the Washington, DC metro area. The role advances foundational skills in systems engineering, virtualization, and cybersecurity within a secure environment.

The engineer will join an integrated technical team, handling administration, testing, configuration, and continuous improvement across enterprise IT systems and infrastructure. This is a growth‑oriented position with diverse exposure.

Qualifications

• Active TS/SCI security clearance with an adjudicated polygraph.
• Current CompTIA Security+ certification or equivalent.
• Foundational experience supporting IT systems, admin, or engineering.
• Understanding of TCP/IP, DNS, DHCP and common troubleshooting.
• Familiarity with cybersecurity fundamentals and secure configurations.
• Ability to document findings and actions methodically.

Responsibilities

• Install, configure, maintain, and troubleshoot Windows and Linux servers and infrastructure.
• Support day-to-day system administration across physical and virtual environments.
• Monitor system health, availability, capacity, and performance to preempt issues.
• Assist with patches, testing, deployment, and technical refresh activities.
• Support vulnerability remediation and cybersecurity compliance.
• Develop and maintain system documentation and diagrams.
• Collaborate with engineers, cybersecurity, developers, and leadership.

Skills

Windows administration

Linux administration

Networking TCP/IP

Troubleshooting

System administration

Education

Bachelor's degree

Tools

VMware vSphere/ESXi

Active Directory

AWS / Azure

Scripting basics

Job description

Arion Systems, Inc. (ASI) is seeking an IT Systems Engineer I/II to support mission‑critical IT systems in the Washington, DC metro area. The role advances foundational skills in systems engineering, virtualization, and cybersecurity within a secure environment.

The engineer will join an integrated technical team, handling administration, testing, configuration, and continuous improvement across enterprise IT systems and infrastructure. This is a growth‑oriented position with diverse exposure.