Senior Endpoint Security Engineer – Hybrid Cloud & On-Prem

Leidos; Bethesda (MD); Hybrid; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Sr. Endpoint Security Systems Engineer to design, deploy, and maintain endpoint security capabilities across hybrid cloud/on-prem mission environments.

You will integrate Linux and Windows hosted mission systems with Trellix solutions, manage central consoles, and refine scanning policies to protect critical assets. The role requires collaboration with mission teams, strong incident response experience, and an active TS/SCI with polygraph.

Qualifications

• Bachelor's degree required with 8+ years of relevant experience.
• Active TS/SCI with polygraph clearance required.
• Experience with Trellix tools and Linux/Windows environments.
• Strong problem solving and incident response capabilities.

Responsibilities

• Maintain and upgrade central management consoles across networks.
• Integrate mission servers with management consoles (Linux/Windows).
• Deploy endpoint protection updates and refine scan exclusions.
• Troubleshoot integration issues with mission teams.
• Automate performance improvements for endpoint security in hybrid cloud/on‑prem.

Skills

Endpoint security

Security engineering

Threat analysis

Team collaboration

Education

Bachelor’s degree in a technical field

Tools

Trellix ePolicy Orchestrator

Trellix Endpoint Threat Protection

Linux

Windows

Splunk

AppDynamics

Cisco Secure Endpoint

AWS

Rapid7

SolarWinds

Cisco IDS/IPS

Job description

Leidos is seeking a Sr. Endpoint Security Systems Engineer to design, deploy, and maintain endpoint security capabilities across hybrid cloud/on-prem mission environments.

You will integrate Linux and Windows hosted mission systems with Trellix solutions, manage central consoles, and refine scanning policies to protect critical assets. The role requires collaboration with mission teams, strong incident response experience, and an active TS/SCI with polygraph.