Network Engineer Sr - E3

Standard Job Description 
 Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.  At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you.[   Lockheed Martin is seeking a talented Network Engineer with a Final DoD Secret clearance to work on mission‑critical Military Satellite Communications (SATCOM) Ground systems within an Agile Development Environment. You will be a key member of the Component Integration Team, assisting in the design, implementation, and sustainment of Ground Systems that support secure, high‑performance communications. As a Network Engineer you will: Design and plan network communications systems that support geographically dispersed, cross‑site SATCOM operations, including multi‑pathing and redundancy. Develop detailed specifications and schematics for network architecture, hardware selection, and implementation tools that address current and future capacity requirements. Conduct testing and validation of network designs, including data‑flow analysis, performance monitoring, and troubleshooting. Evaluate emerging communications technologies and recommend enhancements to improve network capability, resiliency, and security.  Implement Software Defined Networking (SDN) solutions and integrate them with existing infrastructure. Provide technical expertise on network and computer hardware/software interconnection, ensuring seamless data exchange between applications and remote locations. Participate in Agile ceremonies (sprint planning, daily standups, sprint reviews, retrospectives) to deliver high-quality solutions continuously. Basic Qualifications 
 Active Final DoD Secret clearance with the ability to obtain and maintain TS/SCI. Proven experience with Software Defined Networking (SDN) and Data Flow Analysis . Current or ability to obtain CCNA/CCNP certification. Fundamental knowledge of network protocols: TCP/IP, UDP, SMTP, NFS, DHCP, DNS, FTP, Telnet, SSH , and firewall policy design. Desired Skills 
 DoD 8570.01‑M IAT Level II or III certification (e.g., Security+, CASP, CISSP). Experience operating within Red  Hat based environments . Familiarity with DISA STIG checklists and hardening of Layer 2/Layer 3 switches. Hands-on experience with Type 1 encryption devices (e.g., TACLANE). Proficiency using protocol analyzers/sniffers such as Wireshark. Interest/experience with automation tools (Ansible, Terraform, etc.). Knowledge of military SATCOM systems and secure communication protocols. Experience with virtualization technologies , including VMware. Familiarity with Agile development tools (JIRA, Confluence). Strong problem-solving ability, attention to detail, and capacity to manage multiple tasks efficiently. Strong written and verbal communication skills; ability to collaborate in a fast‑paced, team oriented environment. Proficient in AI prompting as it applies to this position and practice Pay Information Full-Time Salary Range: $95900.00 - $178100.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally. The