Senior Cyber Security Engineer

Job Description

Description

Leidos is currently seeking a Senior Cyber Security Engineer who is responsible for developing and implementing advanced security solutions to defend critical systems, networks, and data against evolving cyber threats. This role combines technical expertise in both software and hardware to support the design and deployment of defensive cyber measures. The engineer conducts research on current and emerging cyber threats, identifies vulnerabilities, and ensures that development environments and operational systems remain resilient against cyber exploits.

Primary Responsibilities

• Research and analyze cyber threat trends, vulnerabilities, and exploits to proactively identify risks to critical mission systems.
• Design and implement defensive cyber security solutions to protect data, networks, and applications from unauthorized access, modification, or destruction.
• Perform vulnerability assessments, penetration testing, fuzzing, and malware analysis to detect and mitigate potential security risks.
• Secure development environments by implementing application security architecture and conducting evaluations of software for security compliance.
• Collaborate with development, IT, and operations teams to integrate security into the software development life cycle (SDLC) and CI / CD pipelines.
• Identify, detect, and respond to cyber attacks and incidents, including investigation and remediation efforts.
• Ensure cyber solutions comply with relevant standards, frameworks, and regulatory requirements.
• Maintain up-to-date documentation of security architecture, findings, and mitigation strategies.

Basic Qualifications

Preferred Qualifications

If you're looking for comfort, keep scrolling. 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.

Original Posting : August 29, 2025

For U.S. Positions : While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range : Pay Range $104,650.00 - $189,175.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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