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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Engineer - **Company:** SYBEX SUPPORT SERVICES LLC - **Location:** St. Louis, MO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Wireless LAN, Amazon Web Services, Application Firewall, Microsoft Azure, Border Gateway Protocol, Cisco PIX, Cisco Routers, Cloud Computing, CompTIA Network+, Network Congestion, Dynamic Host Configuration Protocol, Network Address Translation, Disaster Recovery, Domain Name System (DNS), Enhanced Interior Gateway Routing Protocol, EtherChannel, Firmware, Monitoring of Systems, Hot Standby Router Protocol, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Network Layer, Nagios, Network Control, Network Diagrams, Network Monitoring, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Paessler Router Traffic Grapher, Remote Access Technology, Virtual Local Area Networks, Virtual Router Redundancy Protocols, Wide Area Networks, Wireless Access Point, Wireless Networks, Enterprise Data Management, VLAN Trunking Protocol (VTP), Computer Networking Systems, Computer Network Technologies, System Availability, HybridCloud, Firewalls (Computer Science), Data Center Networking, Information Technology, SolarWinds (Software), Palo Alto Networks, Patch Management, Check Point Firewalls, Fortinet, Open Network Automation Platform, Cisco, SSL VPN, Vmware - **Published:** July 27, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=4bf5d0d8b3541c70 ## About the Role * Bachelor's degree in Computer Science, Information Technology, or related field. * 4+ years of hands-on experience in enterprise networking. * Strong experience with Cisco networking solutions. * Experience with routing, switching, wireless, and firewalls. * Experience supporting large enterprise environments. * Strong troubleshooting and analytical skills. * Excellent communication and documentation skills. Preferred Certifications * Cisco CCNP Enterprise * Cisco CCNA * Cisco DevNet Associate (Preferred) * Fortinet NSE * Palo Alto PCNSA / PCNSE * CompTIA Network+ * ITIL Foundation Soft Skills * Strong analytical and troubleshooting abilities. * Excellent verbal and written communication. * Ability to work independently and within cross-functional teams. * Strong documentation and organizational skills. * Ability to manage multiple priorities in a fast-paced environment. * Customer-focused with excellent stakeholder management skills. Preferred Experience * Enterprise Data Center environments * SD-WAN implementation and support * Hybrid cloud networking (Azure/AWS) * Cisco Nexus and Meraki deployments * High Availability (HA) and Disaster Recovery (DR) environments * Network migration and infrastructure upgrade projects * Network automation and scripting * ITIL-based incident, change, and problem management ## Description We are looking for a skilled Senior Network Engineer with 4+ years of experience in designing, implementing, maintaining, and troubleshooting enterprise network infrastructure. The ideal candidate should have strong hands-on experience with Cisco networking technologies, routing and switching, firewalls, wireless networks, VPNs, and network security. The engineer will be responsible for ensuring high network availability, performance, and security across enterprise environments., * Design, implement, configure, and support enterprise LAN, WAN, WLAN, and Data Center networks. * Install, configure, and troubleshoot Cisco routers, switches, wireless controllers, and access points. * Perform advanced troubleshooting of routing, switching, and connectivity issues. * Configure and manage Layer 2 and Layer 3 networking technologies. * Configure and maintain VLANs, STP, EtherChannel, HSRP, VRRP, and VTP. * Implement and troubleshoot routing protocols including OSPF, EIGRP, and BGP. * Configure and manage VPN technologies including IPSec, SSL VPN, and Site-to-Site VPN. * Support firewall administration including Cisco ASA, Fortinet, Palo Alto, or Check Point firewalls. * Configure and troubleshoot NAT, ACLs, DHCP, DNS, QoS, and network security policies. * Monitor network performance using SolarWinds, PRTG, Nagios, or similar monitoring tools. * Perform firmware upgrades, patch management, and hardware replacements. * Troubleshoot network latency, bandwidth utilization, packet loss, and performance issues. * Support SD-WAN environments (Cisco Meraki, Cisco Viptela, Fortinet, Versa, VMware Velocloud, etc.). * Manage enterprise wireless infrastructure including Cisco Meraki, Cisco WLC, Aruba, or Ubiquiti. * Implement network redundancy and high availability solutions. * Collaborate with server, cloud, security, and desktop support teams. * Participate in network migration, deployment, and infrastructure upgrade projects. * Create and maintain network diagrams, SOPs, and technical documentation. * Perform root cause analysis (RCA) and implement preventive measures. * Provide L2/L3 support and mentor junior network engineers. * Participate in on-call support and maintenance activities when required. ## 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) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [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) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Embracing the Hybrid Cloud: Unlocking Success with Open Source Technologies](https://www.wearedevelopers.com/videos/883-embracing-the-hybrid-cloud-unlocking-success-with-open-source-technologies) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [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) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [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)