Firewall Engineer

Leidos • Arlington, VA, United States • Posted June 05, 2026

Location Arlington, VA
Job Type Full-time
Category other-general
Posted June 05, 2026
**Description**

The DISA IT Operation within Leidos’ Digital Modernization Group is seeking a **Firewall Engineer** to support the Compartmented Enterprise Services Office (CESO) Task Order for the GIG Service Management – Operations II (GSM-O II) contract. This person should be a seasoned, self-motivated, professional with at least 10 years of hands-on engineering and testing experience in virtualized and cloud environments. A skilled engineer knowledgeable and experienced in developing and implementing Firewall/Networking Security Solutions.

With the CESO program, the Defense Information System Agency (DISA) is looking to transform the existing Secure Web Services (SWS) environment, used to provide secure information sharing to the community, into a more mature service offering to meet the DoD and IC community. As part of this task order, Leidos will manage the commercial cloud migration and fully automate the continuous development & continuous integration enviro...

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