Principal Endpoint Security Systems Engineer
Listed on 2026-06-26
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Engineering
Systems Engineer, Cybersecurity
Principal Endpoint Security Systems Engineer
Leidos has an exciting opportunity for a Principal Endpoint Security Systems Engineer in our Intel Security Sector's Analysis Solutions Business Area
. This role involves designing, deploying, maintaining, and upgrading endpoint security capabilities in a hybrid cloud/on‑prem mission environment.
This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security Engineering team. The focus of this team member will be to design, deploy, maintain, and upgrade endpoint security capabilities, with opportunities for cross training on our other security tools. Working in a hybrid cloud/on‑prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintain the scan policies to ensure proper protection of mission systems from external threats.
PrimaryResponsibilities
- Maintaining and upgrading the central management consoles (currently Trellix‑ePolicy Orchestrator) on multiple isolated networks
- Managing the integration of mission application servers (Linux and Windows) with the management console
- Deploying malware protection software (currently Trellix Endpoint Threat Protection) updates and improved scan exclusion policies to mission application servers
- Responding promptly to mission teams to troubleshoot integration issues, including cases where excessive real‑time malware scans are believed to impede performance
- Determining methods to automate and improve the performance of the endpoint security suite within a hybrid cloud/on‑prem environment
- Integrating endpoint security scan processes for integrated reporting via external tools (e.g., Splunk or App Dynamics)
- Investigating findings of malware detected on mission application servers
- Experience with Trellix ePolicy Orchestrator and Trellix Endpoint Threat Protection
- Experience maintaining systems on Linux and Windows platforms
- Ability to partner with mission application teams to jointly troubleshoot endpoint security integration
- Experience with incident detection, incident response, and forensics activities
- Strong attention to detail with an analytical mind and outstanding problem‑solving skills
- Bachelor’s degree with at least 12 years of relevant experience (additional years of experience may substitute for a degree)
- Active TS/SCI with polygraph security clearance
- Experience with Cisco Secure Endpoint (formerly AMP for Endpoints) or other endpoint security tools
- Experience with Cloud Computing Technologies/Amazon Web Services (AWS)
- Experience integrating endpoint security findings with external products such as Splunk or App Dynamics
- Experience managing endpoint security across on‑prem and cloud boundaries
- Experience with additional cyber‑security tools and processes such as Splunk, Rapid7, Solar Winds, Cisco IDS/IPS, VPN, Web Inspect, App Detective
Competitive benefits including Paid Time Off, 11 paid holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and more.
Pay Range$ – $
Commitment to Non‑DiscriminationAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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