> Markdown version of [/jobs/ext/2273035-network-engineer-sr-e3](https://www.wearedevelopers.com/jobs/ext/2273035-network-engineer-sr-e3). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer Sr - E3 - **Company:** Lockheed Martin - **Location:** King of Prussia, PA, United States - **Experience:** Expert - **Salary:** $95,900.0 - $178,100.0 - **Contract:** Permanent contract - **Skills:** Secure Shell (SSH), Agile Methodology, Artificial Intelligence, Confluence, JIRA, Computer Networks, Dynamic Host Configuration Protocol, Domain Name System (DNS), Electronic Data Interchange (EDI), Data-Flow Analysis, Network Layer, Simple Mail Transfer Protocols, Network Architecture, Network File Systems, Scrum Methodology, Red Hat Enterprise Linux, Ansible, Satcom, Sniffers, Software Engineering, Data Streaming, TCP/IP, Telnet, Wireshark, Virtualization Technology, File Transfer Protocol (FTP), Firewalls (Computer Science), Computer Equipment, Information Technology, Pathing, Performance Monitor, Terraform, Vmware - **Published:** August 27, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9122455/network-engineer-sr-e3 ## About the Role * 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 ## Description 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. ## Related Videos - [Chat App Leak, Tesla’s Blurry Dashcam, and Meta Currency Beats Bitcoin - Keith Cirkel](https://www.wearedevelopers.com/videos/1857-chat-app-leak-tesla-s-blurry-dashcam-and-meta-currency-beats-bitcoin-keith-cirkel) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)