Senior Cyber Security Engineer DoD Splunk & IR, TS/SCI

Chenega MIOS is seeking a Sr. Cyber Security Engineer to join our Arlington, VA team supporting DoD and government missions. The role emphasizes hands-on security engineering, incident response, and security monitoring using Splunk SIEM, with a focus on DoD DISA STIG compliance and system hardening across Windows, UNIX/Linux, and virtualization platforms. You'll collaborate with product engineers and CIRT to analyze threats, develop mitigations, and deliver security training and documentation