Senior Information Security Engineer

Leidos
Full-time Chantilly, VA other-general
Posted:
June 13, 2026
Location:
Chantilly, VA, United States

Job Description

**Description**

Leidos is seeking an Information Systems Security Engineer (ISSE) for a technical development program supporting cloud-based applications, and its associated cloud infrastructure located on a highly secure network. The ISSE will work with a large team of developers, system engineers, DevOps engineers, database administrators, and system architects.

Core business hours for the team are from 9 AM to 3 PM daily – exceptions outside of those hours for the candidate may be negotiated in consultation with management.

The typical day for an ISSE supporting the cloud-based applications is as follows:

+ The ISSE will participate in the team’s regularly scheduled Agile tag up (scrum) meetings and report on the status of their assigned Jira issues
+ Attend ad-hoc TEMs with the team to discuss and weigh in on numerous architectural aspects of the systems for assessing security impacts that may arise with system changes
+ Assist with and/or ...

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Job Overview

Job Type: Full-time
Location: Chantilly, United States
Posted: June 13, 2026
Deadline: June 18, 2026