Principal Cyber Security Systems Engineer

MANTECH is seeking a motivated, career-driven  Principal Cyber Security Systems Engineer  to join our team in  Chantilly, VA . This role provides an exciting opportunity to secure and optimize complex enterprise infrastructure in support of critical national security missions. The selected candidate will collaborate with multidisciplinary teams to ensure secure, scalable, and high-performing systems across mission environments.

Responsibilities

• The Principal Cyber Security Engineer will design, implement, and maintain secure, resilient, and scalable enterprise systems that align with mission and business objectives. Responsibilities include but are not limited to :
• Design, implement, and maintain complex enterprise systems and infrastructure that support strategic business objectives
• Develop and maintain comprehensive system architecture and design documentation
• Collaborate with engineering and cybersecurity teams to ensure solutions meet security, performance, and scalability requirements
• Configure, administer, and troubleshoot network devices and appliances (Juniper, Cisco, F5, etc.)
• Manage and maintain Windows, Linux, and vendor appliance-based systems to ensure availability and reliability
• Plan and execute OS upgrades, patches, migrations, and lifecycle management tasks
• Develop and maintain disaster recovery and business continuity strategies
• Implement and maintain system monitoring, alerting, and proactive incident response mechanisms
• Provide mentorship and technical leadership to junior engineers
• Stay abreast of emerging technologies and evolving cybersecurity trends

Basic Qualifications

Preferred Qualifications

Security Clearance Requirements

Physical Requirements