Endpoint Cyber Engineer

Endpoint Cyber Engineer – Leidos

The Leidos Corporate Information Security Office, within the Digital Modernization sector, has an immediate opening for an Endpoint Cyber Engineer to join our Cyber Information Security team. You will join a Global Endpoint Security team of cyber leaders, engineers, and operations analysts responsible for administration, maintenance, testing, design, and implementation of Leidos endpoint cyber defense solutions, initiatives, and the supporting hybrid infrastructures.

Location: Orlando – FL, Reston – VA, Gaithersburg – MD, or telework for the right candidate.

Clearance: US Citizenship required. Ability to obtain a DoD Secret clearance.

In this role, you will focus on the design and implementation of industry‑leading cyber security products that support the cyber defense mission of a Fortune 500 organization. You will define, drive, and deliver major components of an overall endpoint security strategy, provide guidance and support to the Endpoint Cyber Operations team, contribute to documentation of SOPs, knowledge transfers, training, and act as the subject‑matter expert in the architectural design and initial configuration of Leidos’ next‑generation endpoint solutions.

You will evaluate systems to identify and remediate gaps in vendor solutions and platform technologies while refining established policies, processes, and procedures related to user experience with the software and configurations.

• Mentoring, coaching, and developing peers
• Contributing to and working with a high‑performing team in a collaborative effort
• Acting as a Subject Matter Expert for endpoint security solutions (e.g., Next Gen AV, Host Firewall, Privileged Rights Management, Application Allow Listing, Endpoint Detection and Response, etc.)
• Applying advanced knowledge of security frameworks (including security operations, incident investigations, incident response, threat hunting, vulnerability awareness, and security configuration management)
• Conducting technical control testing, implementation, and enforcement based on inputs from the Leidos Cybersecurity Intelligence & Response Center (CSIRC), the Endpoint Cyber Engineering team, and other internal organizations
• Supporting change management for security policies associated with endpoint security solutions and capabilities
• Working closely with your manager to ensure tasks are executed on time
• Ensuring documentation for supported endpoint security products, procedures, services, etc., is written and centrally accessible
• Creating and monitoring reporting for compliance
• Understanding and troubleshooting complex situations while maintaining the company’s security posture
• Collaborating through information and knowledge sharing networks and professional relationships to achieve common goals
• Working individually or as part of a team across various product areas while maintaining a secure environment
• Performing other tasks as assigned

• US Citizenship required
• Eligible to obtain a DoD Secret security clearance
• Bachelor’s degree and minimum 4 years of relevant experience, including 2 years in Cyber / Information Security; additional experience and/or certifications may substitute for a degree, including 2+ years of endpoint security experience
• Experience designing and implementing endpoint security solutions on a global enterprise scale
• Hands‑on experience with solution design and implementation for endpoint security solutions
• Ability to write and verbally communicate information security and risk‑related concepts to both technical and non‑technical audiences
• Ability to weigh business needs against endpoint security concerns and articulate challenges to customers and leadership
• Strong time‑management and prioritization skills for multiple tasks and projects
• Strong problem‑solving and analytical skills; able to act calmly and competently in high‑pressure situations
• Deep technical understanding of advanced threat detection in enterprise environments, automated intelligence distribution methods, malware families, and associated threats
• Fundamental understanding of accepted security practices, troubleshooting issues, attack vectors,…