Cybersecurity Engineer

Leidos seeks a Cyber Engineer to design, implement, and secure mission-critical systems for government and commercial customers. In this role, you will engineer secure network, system, and cloud solutions; perform vulnerability assessments and penetration testing; support incident response; and drive continuous security improvements. You will collaborate across multidisciplinary teams, apply industry standards such as NIST, and leverage automation to enhance protection. This position offers impactful work, professional growth, competitive pay, comprehensive benefits, and flexible, collaborative work arrangements aligned with our mission-driven culture.

Responsibilities

• Design, implement, and secure cyber solutions for government and commercial clients
• Configure and harden networks, systems, and cloud environments against cyber threats
• Conduct vulnerability assessments, penetration testing, and security monitoring
• Develop and maintain security automation, scripts, and tooling
• Collaborate with cross-functional teams to integrate cybersecurity into system architectures
• Support incident response, forensic analysis, and remediation activities
• Create technical documentation, runbooks, and system security plans
• Ensure compliance with relevant security standards and regulatory requirements
• Contribute to continuous improvement of security posture and engineering practices
• Mentor junior engineers and share cyber best practices across teams

Required Skills

• Network security engineering (firewalls, VPNs, IDS/IPS)
• Cloud security (AWS, Azure, or GCP)
• Vulnerability assessment and remediation
• Penetration testing tools and techniques
• Security information and event management (SIEM) tools
• Identity and access management (IAM)
• Secure system and network architecture design
• Scripting/automation (Python, Power
• Shell, or similar)
• Operating system hardening (Windows, Linux)
• Knowledge of security frameworks and standards (NIST, ISO 27001)