Senior Network Engineer

Senior Network EngineerAt RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market-leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Join us and help shape the future of aerospace and defense.The following position is to join our RTX Corporate, Classified Digital Services (CDS) organization.As a Senior Network Engineer, you will provide advanced engineering expertise to support secure, reliable, and high-performing network infrastructure for classified operations. You will lead complex troubleshooting efforts, strengthen network security, ensure compliance, and provide technical guidance to junior engineers.What You Will DoImplement, secure, and maintain enterprise network infrastructure, including routing, switching, firewalls, segmentation, and classified communication technologies.Lead complex network troubleshooting, root-cause analysis, and long-term remediation efforts.Develop and maintain secure networking standards, configuration baselines, and operational procedures.Oversee core network services, including DNS, DHCP, IP management, VPNs, VLANs, and traffic optimization.Lead network upgrades, patching, capacity planning, and security hardening.Maintain accurate network documentation, configurations, and environment inventories.Collaborate with cybersecurity, systems administration, and classified-program teams to ensure secure, highly available environments.Mentor junior engineers and drive improvements in network performance, resilience, and security.Qualifications You Must HaveTypically requires a University Degree or equivalent experience and a minimum of 8 years of prior relevant experience, or an Advanced Degree in a related field and a minimum of 5 years of experience.Active Secret Clearance or eligibility to obtain one.Advanced knowledge of networking protocols and technologies, including routing, switching, firewalls, QoS, BGP, and OSPF.Extensive hands-on experience with enterprise networking platforms such as Cisco and Palo Alto.Qualifications We PreferActive TS/SCI clearance with CI Polygraph, or eligibility to obtain the required clearance.Certifications Strong understanding of secure network operations, segmentation, access controls, firewall policies, and threat mitigation.Strong communication, documentation, analytical, and problem-solving skills.Experience with scripting and automation tools such as Python, PowerShell, or Ansible.Familiarity with classified computing environments, compliance frameworks, and accreditation processes.Experience with cloud or hybrid networking technologies, including Azure or AWS.