Senior Network Infrastructure Architect

The Senior Network Infrastructure Architect is responsible for the design, implementation, and optimization of enterprise and data center network infrastructures. The role focuses on routing, switching, WAN, and high-availability services to ensure resilient, scalable, and secure connectivity for business-critical platforms. The architect collaborates with security, cloud, and application teams to deliver robust network foundations for current and future services.Key ResponsibilitiesDesign and architect enterprise and data center networks covering LAN, WAN, campus, and backbone environments.Define network standards, reference architectures, and technical guidelines for routing, switching, and high availability.Lead implementation and migration projects involving Cisco Catalyst, Nexus, ACI, and related data center technologies.Plan and implement WAN, MPLS, and VPN solutions to connect sites, partners, and external services.Ensure network availability, performance, and scalability through capacity planning, optimization, and proactive monitoring.Oversee deployment and configuration of network services such as VLANs, QoS, multicast, redundancy protocols, and link aggregation.Integrate network infrastructure with load balancers (e.g., F5 BIG-IP) to support highly available applications and services.Collaborate with security teams to ensure network design supports segmentation, zoning, and secure connectivity requirements.Produce high-quality HLD, LLD, and MOP documents; review and validate designs from internal and external teams.Provide advanced troubleshooting and root cause analysis for complex network incidents and performance issues.Coordinate with vendors and service providers for circuit provisioning, escalations, and solution design.Mentor network engineers, provide technical leadership, and contribute to continuous improvement of network engineering practices.Required Qualifications & ExperienceEducationBachelor’s degree in Computer Science, Information Technology, Engineering, or related field (or equivalent experience).Experience10–15 years of experience in enterprise/network engineering roles.Minimum 4–5 years in a senior or architect-level network role.Technical SkillsStrong expertise in TCP/IP, IPv4/IPv6, routing protocols (OSPF, EIGRP, ISIS, BGP), and Layer 2 technologies (VLANs, STP variants, EtherChannel).Extensive hands-on experience with Cisco Catalyst and Nexus platforms; familiarity with Cisco ACI and data center fabric technologies.Experience designing and operating WAN, MPLS, VPN, and high-availability network topologies.Knowledge of virtualization and data center concepts (vPC, VSS, FabricPath, spine-leaf, etc.).Familiarity with load balancing and application delivery concepts (F5 BIG-IP or similar).Experience with network monitoring tools (e.g., SolarWinds, HP OpenView, Cacti) and packet analyzers (e.g., Wireshark).Strong documentation skills for design, configuration, and operational procedures.Strong analytical thinking, troubleshooting, and structured problem-solving ability.Clear and confident communication with technical teams, vendors, and business stakeholders.Ability to lead cross-functional technical discussions and drive design decisions.Proactive, detail-oriented, and able to manage multiple projects and priorities.Certifications (Required / Strongly Preferred)CCIE certified (Enterprise Infrastructure, Data Center, Service Provider, or equivalent).#J-18808-Ljbffr