**MANTECH** seeks a motivated, career and customer-oriented **Senior Principal Cyber Security Engineer** to join our team in **Chantilly, VA** .

You will help design, implement, and maintain secure and scalable systems and infrastructure aligned to mission and business needs. This role ensures performance, integrity, and protection across enterprise platforms while you serve as a senior technical leader and mentor, guiding strategic improvements and 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, including network diagrams for cyber defense capabilities.
+ Collaborating with engineering and cybersecurity teams to ensure solutions meet security, performance, and s...