Computer Network Defense (CND) Security Engineer

Leidos • Suitland, MD

1d • $107,900 - $195,050 • Onsite

About The Position

Join a mission driven cyber team in Suitland, MD, protecting critical Defense networks. In this role, you’ll analyze threats, investigate security events, run ACAS/Splunk operations, and support cutting edge cybersecurity technologies across Windows, Linux, and VMware environments.

At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Requirements

• Bachelor’s degree with 8+ years of experience, or Master’s with 6+ years of experience. Additional experience or certifications may substitute for a degree.
• Active TS/SCI (in DISS).
• Active IAT Level II (Security+ CE preferred.
• Linux administration experience (specifically RHEL).
• 3+ yrs CND experience.
• Hands-on experience with Splunk, Trellix ePO, ACAS, RMF.

Nice To Haves

• VMware ESXi.
• ACAS/Nessus expertise.

Responsibilities

• Monitor and analyze events in Trellix ePO, Splunk, Palo Alto, and RSA.
• Investigate endpoint alerts (malware, rogue systems, removable media).
• Build dashboards, run ACAS scans, assist with remediation.
• Apply STIGs, perform patching, manage SCAP scans.
• Contribute to RMF documentation and system/network diagrams.

Benefits

• Pay Range $107,900.00 - $195,050.00

What This Job Offers

• Job Type: Full-time
• Career Level: Senior