Principal Endpoint Security Architect

Crows; McLean (VA); On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with 6% company match

Flexible schedules

Education and Training Support

Job summary

Leidos is seeking a Principal Cybersecurity Engineer in the Intel Sector’s Analysis Solutions Business Area. The role focuses on protecting information systems, designing and maintaining security controls, and ensuring compliance with cybersecurity policies and RMF processes.

You will collaborate with ISSEs, ISSMs, software developers, and government stakeholders throughout the DevSecOps lifecycle, leading incident response and vulnerability remediation efforts while staying current with threats

Qualifications

• BS or MS with extensive relevant experience; minimum years in description.
• Active TS/SCI with Polygraph is required for consideration.
• Experience implementing and managing SIEM tools (Splunk or similar).
• Experience with endpoint and network security technologies (IDS/IPS, EDR).
• Experience RMF/ATO processes, vulnerability management, and DevSecOps collaboration.
• Professional cybersecurity certifications (Security+, CISSP, CySA+, CEH, GCIH).

Responsibilities

• Plan, implement, manage, monitor, and upgrade security controls and tools.
• Design, configure, troubleshoot, and maintain security technologies and SIEMs.
• Support incident investigation and remediation; participate in change management.
• Audit systems for policy and secure baseline compliance.
• Collaborate with engineering and operations to embed security in DevSecOps.
• Monitor advisories and threat intelligence; enforce secure configurations.
• Support vulnerability management and remediation with teams.

Skills

SIEM engineering

Security engineering

DevSecOps

Incident response

Risk management

Education

Bachelor's degree + 12+ years

Master's degree + 10+ years

Tools

Splunk

HBSS/Trellix

Carbon Black EDR

Tenable/Nessus

Rapid7

Job description

Leidos is seeking a Principal Cybersecurity Engineer in the Intel Sector’s Analysis Solutions Business Area. The role focuses on protecting information systems, designing and maintaining security controls, and ensuring compliance with cybersecurity policies and RMF processes.

You will collaborate with ISSEs, ISSMs, software developers, and government stakeholders throughout the DevSecOps lifecycle, leading incident response and vulnerability remediation efforts while staying current with threats