Sr. Network Engineer

ManTech International seeks a Sr. Network Engineer to design, implement, and secure complex enterprise networks supporting critical U.S. defense and federal missions. In this role, you’ll architect and optimize LAN/WAN, VPN, and perimeter security, troubleshoot performance issues, and support modernization and cloud-ready solutions. You will collaborate with cyber, systems, and mission teams to ensure highly available, resilient, and compliant infrastructures. ManTech offers a mission-focused, …