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# Senior Network Engineer (Cisco Enterprise Infrastructure)

- **Company:** TEKSYSTEMS INC.
- **Location:** El Segundo, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $249,600.0 - $270,400.0
- **Contract:** Contract
- **Skills:** Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Catalyst (Software), Cisco PIX, Computer Networks, Data Centers, Disaster Recovery, Enhanced Interior Gateway Routing Protocol, Failover, Identity and Access Management, Virtual Private Networks (VPN), Network Security, Network Troubleshooting, Network Layer, Network Architecture, Network Monitoring, Routing, Network Segmentation, Cisco Nexus Switches, Open Shortest Path First (OSPF), Wide Area Networks, Wireless Access Point, Wireless Networks, Identity Services Engine, Technical Debt, HybridCloud, Firewalls (Computer Science), Data Center Networking, Firepower, Firewall Services Module, Open Network Automation Platform, Cisco Switches, Cisco, Network Optimization
- **Published:** August 8, 2026
- **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/17867523?backUrl=%2Fcareer%2F17867523%2FSenior-Network-Engineer-Cisco-Enterprise-Infrastructure-California-Los-Angeles

## About the Role

Deep hands-on experience with:
*Cisco Catalyst Switching Platforms
*Cisco Nexus Data Center Switching
*Cisco Enterprise Routing Platforms
*Cisco Wireless LAN Controllers (WLC)
*Cisco Access Points
*Cisco Identity Services Engine (ISE)
*Cisco DNA Center
*Cisco SD-WAN
*Cisco Firepower Security Platforms
*Cisco ASA Firewalls
*Cisco Meraki Solutions
Core Technical Competencies
*Enterprise LAN/WAN design and support
*Advanced routing protocols (BGP, OSPF, EIGRP)
*Network segmentation and access control
*High-availability network architectures
*Network performance analysis and troubleshooting
*Infrastructure assessments and remediation initiatives
*Network monitoring and management tools
*Disaster recovery and business continuity planning
Required Experience
*10+ years of enterprise network engineering experience.
*Extensive hands-on experience supporting large-scale Cisco environments.
*Proven experience assessing and remediating challenged or under-documented network environments.
*Experience performing infrastructure health checks, network audits, or network transformation initiatives.
*Strong architecture knowledge combined with hands-on engineering capabilities.
*Experience serving as the Senior escalation point for complex networking issues.
*Ability to work independently with limited direction.
Preferred Qualifications
*CCIE Enterprise Infrastructure (strongly preferred)
*CCNP Enterprise
*Cisco Security Certifications
*Experience with Azure networking
*Experience with AWS networking
*Experience supporting hybrid cloud environments
*Experience with network automation and orchestration
*Previous experience leading enterprise infrastructure assessments or network modernization efforts
*Skills*
CCIE Enterprise Infrastructure, Principal Network Engineer, Catalyst, Nexus, ISE, DNAC, SDWAN, ASA, Meraki, hybrid-cloud, Cisco Security Certifications, Azure, AWS, network automation, infrastructure assessments
*Top Skills Details*
CCIE Enterprise Infrastructure,Principal Network Engineer,Catalyst,Nexus,ISE,DNAC,SDWAN,ASA,Meraki,hybrid-cloud

## Description

This role is intended for a level Cisco expert with deep engineering and architectural experience. The selected consultant will quickly immerse themselves in an existing environment, independently evaluate network health and operational maturity, identify hidden risks and deficiencies, resolve critical issues, and provide strategic recommendations for long-term improvements.
The ideal candidate is a hands-on technical leader who can step into a complex enterprise environment with minimal ramp-up time and immediately provide value through expert analysis, troubleshooting, and remediation.
This position will work alongside the existing network engineering team and serve as the highest-level networking resource within the organization reporting directly to the interim CIO.
Within the first few weeks, this individual should be able to:
*Assess the overall health of the enterprise network.
*Identify architectural weaknesses, configuration issues, and operational risks.
*Review existing Cisco infrastructure and provide actionable recommendations.
*Troubleshoot and resolve critical networking challenges.
*Deliver a prioritized roadmap for improving stability, performance, security, and scalability.
*Provide technical leadership and guidance to existing infrastructure resources.
Key Responsibilities
Network Assessment & Optimization
*Perform a comprehensive analysis of the existing network infrastructure.
*Evaluate network performance, resiliency, security posture, and scalability.
*Conduct detailed reviews of network architecture, configurations, and operational processes.
*Identify technical debt, misconfigurations, single points of failure, and performance bottlenecks.
*Develop remediation plans and long-term improvement strategies.
Enterprise Networking
*Design, implement, support, and optimize enterprise network environments.
*Configure and support Cisco routing and switching infrastructure.
*Troubleshoot complex Layer 2, Layer 3, WAN, wireless, and security issues.
*Support network segmentation, redundancy, failover, and high-availability architectures.
*Lead root cause analysis activities and document findings and recommendations.
Security & Access Management
*Administer and optimize Cisco security solutions.
*Review firewall policies, VPN configurations, segmentation strategies, and access controls.
*Evaluate network security architecture and recommend improvements.
*Support compliance and security best practices.
Wireless & Data Center Infrastructure
*Support enterprise wireless networks and controller-based deployments.
*Evaluate and optimize data center networking environments.
*Troubleshoot connectivity, performance, and wireless coverage issues.
Strategic Infrastructure Planning
*Provide architecture-level recommendations and modernization strategies.
*Assist leadership with technology planning and infrastructure roadmaps.
*Evaluate future-state solutions and emerging technologies.
*Develop standards, documentation, and operational best practices.


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