• Design, implement, and support data centre network architectures based on VXLAN / EVPN. • Deploy, configure, and maintain Cisco ACI fabrics, including APIC, tenants, EPGs, contracts, and policies. • Operate and troubleshoot leaf–spine architectures in production data centre environments. • Perform advanced Layer 2 and Layer 3 troubleshooting across complex network topologies. • Ensure high availability, performance, and stability of data centre networks. • Participate in change management, maintenance activities, and incident resolution. • Produce and maintain network documentation and diagrams related to VXLAN and ACI environments.

• Monitor, troubleshoot, and optimize networks using Datadog, Kentik NetFlow, and synthetic testing. • Support datacenter and studio office network deployments, upgrades, and retrofits. • Assist in day-to-day CorpNet operations including stand-ups and vendor calls. • Contribute to Aruba Cloud wireless migrations and ongoing management. • Support AWS, GCP, Azure, and OCI networking initiatives including VPC design, routing, and security optimization. • Assist with Zscaler ZIA/ZPA/ZDX/ZCC projects including DR testing and Business Continuity deployments. • Develop, test, and maintain network automation scripts using Ansible and Python. • Contribute to automation of datacenter office deployments to reduce manual effort and streamline provisioning. • Work with Terraform and CI/CD pipelines (GitHub Actions, Jenkins, ArgoCD, etc.) to enable repeatable deployments. • Maintain and improve NetBox, Oxidized, ACL management, and IPAM systems. • Document network architectures, procedures, and operational guides. • Contribute to knowledge sharing by writing technical runbooks and training materials. • Support network segmentation and traffic inspection projects to enhance security posture. • Assist in secrets and certificate management across enterprise platforms. • Participate in performance optimization initiatives to improve end-user experience.

• Design and dimension the Packet Core (EPC/5GC) to ensure scalability for data growth. • Manage roaming coverage with IPX/GRX providers, roaming sponsors, and direct bi-lateral agreements. • Define specific network profiles and configurations for HSS/UDM subscribers, including QoS, AMBR, and APN subscriptions. • Architect the DNS hierarchy for the mobile core, focusing on S-NAPTR records for MME/SGSN to discover PGW/SGW/UPF nodes. • Plan and implement IP routing strategies, including ASN (Autonomous System Number) management and BGP peering for internet and roaming connectivity. • Manage Access Point Name configurations for various service types, including IMS, Internet, and IoT. • Perform deep-dive troubleshooting of signaling procedures across 3G (Iu-PS), 4G (S1-MME, S11, S5/S8), and 5G NSA (EN-DC). • Apply in-depth understanding of 3GPP standards for 3G, 4G EPC, and 5G NSA mobile data call-flows. • Analyze and optimize critical flows, specifically Attach/Registration (Authentication vectors, ULR/ULA, Create Session) and Bearer Management (Dedicated bearer creation for VoLTE/QCI 1 and default bearers). • Utilize protocol analyzers such as Wireshark or Tektronix to decode ASN.1 based messages and Diameter signaling (Gx, Gy, S6a, S5, S8, GTP-C, GTP-U). • Act as the primary technical interface with core network vendors, system integrators, and partners. • Lead technical evaluations and design reviews for core network expansions. • Manage the ATP (Acceptance Testing) phase to ensure vendor deliveries meet operational standards prior to live deployment.

• Assist in research, evaluation, and recommendation of networking hardware such as routers, switches, firewalls, remote access systems, and network management systems. • Assist in designing, configuring, or upgrading local and wide area networks (LAN/WAN/WLAN). • Assist in identifying, diagnosing, and resolving connection, reliability, or performance issues. • Keep the workroom neat, organized, and secure. • Work under close to moderate supervision with limited latitude for independent judgment. • Consult with senior peers on non-complex projects to learn through experience. • Apply basic application management and administration skills with a moderate level of proficiency. • Represent the department and the organization favorably and in accordance with established Company standards and associate attributes. • Work within defined ITIL processes such as change and incident management. • Other duties as assigned by management.