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

This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network infrastructures across classified and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems.

**Responsibilities include but are not limited to:**

+ Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services
+ Manage and maintain appliances, applications, servers, and supporting infrastructure in both classified and unclassified environments
+ Coordinate with the network service provider to develop and maintain network architecture diagrams
+ Evaluate and recommend changes and/or technology upgrades to address performance, sta...