Principal Cyber Security Systems Engineer

MANTECH seeks a motivated, career-driven  Principal Cyber Security Systems Engineer  to join our team in  Chantilly, VA . This role offers an exciting opportunity for an experienced engineer to secure and optimize complex infrastructure in support of critical missions. You will work closely with cross-functional teams to ensure secure, scalable, and high-performing systems.

You will help design, implement, and maintain secure and scalable systems and infrastructure aligned to mission and business needs. Your role ensures performance, integrity, and protection across enterprise platforms. You will serve as a senior technical leader and mentor, guiding strategic improvements while staying on the forefront of evolving cybersecurity technologies.

Responsibilities include but are not limited to :

• Designing, implementing, and maintaining complex enterprise systems and infrastructure that support strategic business objectives
• Developing and maintaining comprehensive system architecture and design documentation
• Collaborating with engineering and cybersecurity teams to ensure solutions meet security, performance, and scalability standards
• Managing and configuring network devices and appliances, including Juniper, Cisco, F5, and similar platforms
• Administering and troubleshooting Windows, Linux, and vendor appliance-based systems to ensure high availability and performance
• Planning and executing OS upgrades, patches, migrations, and system lifecycle tasks
• Developing and maintaining disaster recovery strategies and business continuity procedures
• Implementing system monitoring, alerting, and proactive response mechanisms
• Providing mentorship and technical guidance to junior engineers
• Staying current on emerging technologies and industry cybersecurity trends

Minimum Qualifications :

Preferred Qualifications :

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