> Markdown version of [/jobs/ext/3266869-mid-level-transport-network-engineer](https://www.wearedevelopers.com/jobs/ext/3266869-mid-level-transport-network-engineer). 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). --- # Mid-Level Transport Network Engineer - **Company:** Leidos, Inc. - **Location:** Jacksonville, FL, United States (Remote available) - **Experience:** Experienced - **Salary:** $59,150.0 - $106,925.0 - **Contract:** Permanent contract - **Skills:** Network Architecture, Routing, Software Vulnerability Management, Load Balancing, Firewalls (Computer Science), SC Clearance, Cisco - **Published:** September 19, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9178133/mid-level-transport-network-engineer ## About the Role *Requires B.S. Degree and 2-4 years network engineering experience (routing, switching, load balancing, firewalls); years of experience can be in lieu of degree. *Must be a U.S. Citizen and possess an active Secret clearance. *Hands-on experience with F5, Cisco, Palo Alto, or similar platforms. *STIG compliance and vulnerability management experience. *Strong troubleshooting and root cause analysis skills. *CCNA, Security+, or equivalent certifications required. ## Description Leidos is seeking a Network Engineer execute patch testing, STIG compliance assessments, and lab validation for assigned network infrastructure domain. Work independently with minimal oversight to ensure thorough testing and accurate recommendations supporting 72-hour SLA. What You'll Get to Do: *Execute comprehensive patch testing in lab environments (standalone, HA, stacks). *Perform quarterly STIG compliance scans and assessments. *Build and maintain lab environments (virtual and hardware). *Document test results and provide deployment recommendations. *Troubleshoot patch failures and coordinate with vendors. *Supervise and mentor junior engineer on testing activities. *Maintain subject matter expertise on 10-15 solution types. *Test 80-100 patches/year in assigned domain (30-35% of team workload). *Complete 50-60 STIG assessments/year. *Maintain lab availability and readiness for assigned solution types. *Accurate patch recommendations - minimize false positives/negatives. *Knowledge transfer through documentation and mentorship.