ISSO – On-Site Cybersecurity National Security

November 11, 2026
$131000 - $237000 / year

Job Description

Company: Leidos

Location: Bethesda, US

Position: ISSO – On-Site Cybersecurity for National Security

Leidos LLC is seeking an Information Systems Security Officer (ISSO) to support critical national-security missions in a secure on-site environment. You will help maintain the security posture, support accreditation activities, and collaborate with ISSMs, system administrators, and mission teams.

The role requires a Bachelor’s degree or 15 years of ISSO experience, TS/SCI with Polygraph, and full-time on-site work.

Consider building your career as a ISSO
– On-Site Cybersecurity for National Security at Leidos.

We invite applications for the ISSO
– On-Site Cybersecurity for National Security position located in MD, United States.

The following role is for a ISSO
– On-Site Cybersecurity for National Security with Leidos.

Our team is growing, and we are hiring a ISSO
– On-Site Cybersecurity for National Security in MD, United States.

This role is for the ISSO
– On-Site Cybersecurity for National Security role at Leidos.

Source: Learn4Good