> Markdown version of [/jobs/ext/3754438-systems-engineer-e2](https://www.wearedevelopers.com/jobs/ext/3754438-systems-engineer-e2). 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). --- # Systems Engineer - E2 - **Company:** Lockheed Martin - **Location:** Sunnyvale, CA, United States - **Experience:** Experienced - **Salary:** $88,100.0 - $163,700.0 - **Contract:** Permanent contract - **Skills:** Link Aggregation (Ethernet), Access Network, Application Firewall, Systems Engineering, Bash Shell, Border Gateway Protocol, CompTIA Security+, Internet Protocol Security (IP SEC), Interoperability, Intrusion Detection and Prevention, Intrusion Detection Systems, Junos, Python (Programming Language), Network Security, Network Troubleshooting, NetFlow, Network Diagrams, Network Diagnostics, Network Functions Virtualization, Network Monitoring, Open Shortest Path First (OSPF), Paessler Router Traffic Grapher, Windows PowerShell, Ansible, Zero Trust Network Access, Web Application Security, Verification and Validation (Software), Systems Integration, Tcpdump, Wireshark, Virtual Local Area Networks, Virtualization Technology, Network Routers, Scripting, Computer Network Technologies, Information Technology, SDN Network, SolarWinds (Software), Puppet, Firewall Services Module, Terraform - **Published:** October 15, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9241668/systems-engineer-e2 ## About the Role * Active DoD Secret security clearance; eligible to obraint and maintain Top Secret clearance * Bachelor's degree in Computer Science, Information Technology, Electrical Engineering, or related field (or equivalent blend of education and experience) * 2-4 years of direct experience designing, implementing, administering, or troubleshooting network infrastructure in a classified or secret environment * Design, configuration, and maintenance of routed/switched networks (routers, switches, Layer 2/3 infrastructure) * Proficiency with core networking protocols: OSPF, BGP, VLANs, STP, LACP, QoS * Network security fundamentals: ACLs, firewall policies, encryption (TLS/IPSec), zero-trust principles, secure configuration hardening * Familiarity with network monitoring/analysis tools (Wireshark, tcpdump, SolarWinds, NetFlow, PRTG, or equivalent) * Basic automation/scripting: Python, Bash, or Ansible for config management or repetitive tasks * Active CompTIA Security+, or ability to obtain within 90 days of hire * Ability to follow strict labeling, segmentation, and data-in-transit controls per NIST/DoD guidance * Strong technical documentation habits (change logs, network diagrams, SOPs) * Ability to coordinate with cleared teammates, project managers, and security managers * Clear written and oral communication; attention to detail; problem-solving under direction; teamwork in multi-disciplinary staffs Desired Skills * DoD Top Secret Clearance * Advanced certifications: CCNP, JNCIA-JUNOS, CISSP, CySA+, or vendor-specific expert-level credentials * Experience with secure network architecture in SCIFs, Sensitive Compartmented Information Facilities, or TEMPEST/EMSEC environments * Hands-on expertise with zero-trust network access (ZTNA), software-defined networking (SDN), or network function virtualization (NFV) * Proven track record configuring and managing firewalls, web application firewalls (WAF), or secure web gateways in classified settings * Familiarity with automation at scale: Terraform, Puppet, Chef, or advanced Ansible playbooks for classified infrastructure * Experience with network monitoring and intrusion detection/prevention systems (IDS/IPS) tuned for high-security environments * Ability to brief technical findings to cleared stakeholders and contribute to SOPs/process improvements * Experience with interoperability testing between classified and unclassified networks (cross-domain solutions) * Advanced scripting in Python/PowerShell for network diagnostics, configuration auditing, or data exfiltration prevention ## Description Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.