Senior Network Engineer

Job Title: Cisco ACI Senior Network EngineerLocation: Phoenix, AZ (Onsite from Day 1)

Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below.
Project descriptionThe Senior Network Engineer is responsible for leading the implementation and optimization of Cisco Application Centric Infrastructure (ACI), Juniper and Arista data center switching and routing, F5 Load Balancer, and hybrid cloud (AWS, GCP, and Azure) networking environments.This role provides technical leadership, advanced troubleshooting support, and contributes to high‑level network design activities.The ideal candidate will have deep hands-on experience in data center networking, cloud connectivity, automation, and cross‑team collaboration.Validate that Data Center and cloud network solutions are implemented and operated in accordance with the Client's standards, guidelines, runbooks, and compliance requirements, be they operated internally or by external partners.Responsible for the architecture requirements gathering, business cases, design, documentation, knowledge transfer, compliance, and updates of technical infrastructure and standards for components and solutions.
ResponsibilitiesLead deployment, configuration, and optimization of Cisco ACI fabric components.Experience in Juniper and Arista data center switching and routingExperience In Load Balancing / Application Delivery (F5 LTM/GTM/Enterprise Manager/vCMP, Viprion)Strong Skills and hands-on cloud networking concepts in Azure (VNET, NSG, ASG, UDR, Express Route, VNET Gateway, Etc.) and other Cloud providers such as GCP, AWSDesign and configure ACI constructs including VRFs, Bridge Domains, EPGs, contracts, and associated policies.Implement segmentation and micro‑segmentation strategies in ACI environments.Oversee ACI fabric maintenance, upgrades, and operational health checks.Partner with architects on high-level design decisions and solution validation.Design and implement hybrid connectivity solutions (AWS, Azure, GCP).Configure Direct Connect, ExpressRoute, VPN gateways, and cloud routing architectures.Integrate ACI with cloud-native networking services to support hybrid workload traffic flows.Ensure best practices for cloud network security, routing, and performance optimization.Perform deep-dive diagnostics, packet captures, and traffic-flow analysis.Lead incident root cause analysis and preventive remediation activities.Contribute to High-Level Design (HLD) and Low-Level Design (LLD) documentation.Create operational runbooks, implementation guides, and standard operating procedures.Ensure adherence to compliance requirements, network governance standards, and change management processes.
Skills Must-HaveStrong expertise in Cisco ACI (policy model, spine-leaf architecture, multi-pod/multi-site concepts).Solid understanding of L2/L3 networking (BGP, OSPF, VXLAN, EVPN).Strong Experience with AWS, Azure, or GCP networking constructs and hybrid-cloud connectivity.Strong analytical and troubleshooting skills for complex network issues.Excellent documentation and communication skills.
Nice to haveCCNP Data Center or CCNP Enterprise. xzbcwsv Cloud networking certifications: AWS Advanced Networking Specialty, Azure Network Engineer Associate, Google Cloud Professional Cloud Network Engineer.Network monitoring and alerting and Dashboarding (SolarWinds Orion, NetFlow, Grafana, Net Brain, Etc)Strong scripting and Automation skills, i.e., PowerShell, Python, Ansible and TerraformExperienced in troubleshooting TCP/IP packet capture and analysis using Wire shark and Network Monitor