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# Principal Network Engineer - Cisco Catalyst/Nexus

- **Company:** J2B Global LLC
- **Location:** Aliso Viejo, CA, United States
- **Contract:** Permanent contract
- **Skills:** Link Aggregation (Ethernet), Border Gateway Protocol, Cyber Security, Data Centers, Enhanced Interior Gateway Routing Protocol, Hot Standby Router Protocol, IT Management, Network Layer, Network Planning and Design, Network Monitoring, Cisco Nexus Switches, Open Shortest Path First (OSPF), Wireshark, Virtual Local Area Networks, Virtual Router Redundancy Protocols, Amazon Virtual Private Cloud (VPC), Data Center Networking, SolarWinds (Software), CIS Benchmarks, Open Network Automation Platform, Cisco Switches, Cisco
- **Published:** October 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=7cb16714b813461d

## About the Role

high-availability architecture, routing and switching configurations, and network resilience. Prepare formal gap assessment reports with risk ratings, current-state and target-state diagrams, and remediation recommendations. Develop phased remediation roadmaps covering immediate improvements and long-term architecture changes. Present technical findings and recommendations to IT leadership. Support or lead remediation activities to address identified network risks and architecture gaps. Required Qualifications Active Cisco CCNP Enterprise or Data Center certification is mandatory. Candidates without a current CCNP will not be considered. 12+ years of enterprise or data center network engineering experience. Proven experience leading network assessments, gap analyses, or architecture reviews and producing formal technical deliverables. Expert-level knowledge of Cisco Catalyst and Nexus platforms. Strong Layer 2/Layer 3 networking expertise, including VLANs, STP, vPC, LACP, SVIs, OSPF,
EIGRP, BGP, and HSRP/VRRP. Strong understanding of high-availability network design, security architecture, and next-generation firewall (NGFW) integration. Hands-on experience with fiber-optic technologies, including SFP/QSFP, single-mode and multimode fiber (SMF/MMF), and Digital Optical Monitoring (DOM). Experience with network monitoring and analysis tools such as SolarWinds and Wireshark. Excellent technical documentation, problem-solving, and executive communication skills. Preferred Qualifications CCIE or CCDE certification. Experience in healthcare, life sciences, or laboratory environments, with familiarity with HIPAA requirements. Knowledge of VXLAN/EVPN architectures. Familiarity with NIST Cybersecurity Framework (CSF) or CIS Controls. Experience with network automation. Experience with Arista EOS.