> Markdown version of [/jobs/ext/2187768-senior-network-engineer](https://www.wearedevelopers.com/jobs/ext/2187768-senior-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). --- # Senior Network Engineer - **Company:** Anonymous Employer - **Location:** San Antonio, TX, United States - **Experience:** Expert - **Salary:** $110,000.0 - $155,000.0 - **Contract:** Permanent contract - **Skills:** Bash Shell, VoIP, Configuration Management, Cyber Security, Computer Networks, Dynamic Host Configuration Protocol, Domain Name System (DNS), VMware ESX Servers, Internet Protocol, IPv4, Intrusion Detection Systems, Virtual Private Networks (VPN), Session Initiation Protocols, Python (Programming Language), Network Security, Linux System Administration, Network Architecture, Network Planning and Design, Routing, Network Time Protocols, Open Shortest Path First (OSPF), Windows PowerShell, Remote Access Technology, Ansible, Virtual Local Area Networks, VMware VSphere, Network Routers, Network Access Control, Computer Network Operations, Computer Network Technologies, Firewalls (Computer Science), Information Technology, TACACS+ Protocol, Open Network Automation Platform, Cisco, Network Optimization - **Published:** August 22, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9103368/senior-network-engineer ## About the Role * Bachelor's degree in Science, Technology, Engineering, Mathematics (STEM), Information Technology, or a related field and 8+ years of relevant experience; OR * Master's degree and 6+ years of relevant experience; OR * PhD and 4+ years of relevant experience. * Active U.S. Top Secret clearance with SCI eligibility/access. * DoD 8570 IAT Level II certification (Security+ CE or equivalent). * Hands-on experience planning, implementing, operating, and troubleshooting routed and switched IP networks. * Experience supporting: * IPv4 networking * OSPF routing * VLANs * VPN technologies * Firewalls * Experience administering Microsoft and Linux-based systems. * Knowledge of cybersecurity principles, system hardening, and secure network operations., * Cisco CCNP, CCIE, or equivalent advanced networking certification. * Experience serving as a lead network engineer or network design authority. * Expertise with: * Cisco routing and switching * Enterprise firewalls * VMware vSphere, ESXi, and NSX * IDS/IPS technologies * Network Access Control (NAC) * Experience with: * DNS, DHCP, NTP * RADIUS and TACACS+ * Active Directory integration * Knowledge of DISA STIGs, RMF, ATO processes, and security compliance frameworks. * Experience designing segmented and multi-domain network architectures. * Network automation experience using: * Ansible * Python * Bash * PowerShell * Experience with Infrastructure as Code and configuration management. * Background supporting Network Operations Centers (NOCs) and complex operational environments. * Experience working with high-availability, real-time, or mission-critical systems. Knowledge of VoIP, SIP, QoS, and converged voice/data networks. ## Description We are seeking an experienced Network Engineer I to support the design, implementation, operation, and sustainment of complex enterprise and mission-critical networks. This role requires a strong background in network architecture, cybersecurity, systems administration, and troubleshooting within highly secure environments. The ideal candidate will serve as a technical leader responsible for network design, integration, optimization, and security while collaborating with cross-functional engineering and cybersecurity teams. Responsibilities * Design, implement, and maintain secure enterprise network infrastructures. * Provide network architecture designs, implementation plans, and technical documentation. * Develop and maintain network schematics, addressing plans, routing strategies, and configuration baselines. * Install, configure, and troubleshoot routers, switches, firewalls, VPNs, and other networking technologies. * Conduct testing, validation, performance analysis, and failover assessments. * Monitor and optimize network performance, reliability, and security. * Support network modernization efforts, migrations, and infrastructure upgrades. * Implement cybersecurity controls and secure network configurations aligned with industry best practices. * Collaborate with systems, cybersecurity, software, and test engineering teams to support mission objectives. * Evaluate emerging technologies and recommend solutions that enhance network capabilities. * Participate in troubleshooting and incident response activities across Layers 1-7. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Getting under the skin: The Social Engineering techniques](https://www.wearedevelopers.com/videos/38-getting-under-the-skin-the-social-engineering-techniques) - [IP Authentication: A Tale of Performance Pitfalls and Challenges in Prod](https://www.wearedevelopers.com/videos/1413-ip-authentication-a-tale-of-performance-pitfalls-and-challenges-in-prod) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) ## Related Articles - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [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) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)