Senior Cloud Network Infrastructure Engineer - SDN/Kubernetes

Position Summary :

We are seeking an experienced Cloud Network Infrastructure Engineer to join our cloud engineering team. The ideal candidate will design, deploy, operationalize, and maintain high-performance Software-Defined Network (SDN) architectures, bridging deep data center networking expertise with modern cloud-native telemetry, microservices, OpenStack environments, and Kubernetes-native application development.

Roles and Responsibilities : SDN & Virtual Switching :

• Architect, maintain, and optimize Open Virtual Switch (OVS) and Open Virtual Network (OVN) dataplanes. Manage OpenFlow pipelines and SDN controllers for automated flow control.

Cloud Infrastructure & Kubernetes :

• Deploy and operationalize OpenStack networking services (Neutron, Metadata Service) using OpenStack Ansible. Contribute to the development of cloud-native networking products, microservices, and controllers for our Kubernetes product ecosystem.

Overlay & Underlay Networking :

• Design, optimize, and troubleshoot overlay tunnels (VxLAN, GENEVE) and virtual networks (VLAN 802.1Q) running over high-throughput physical fabrics (L3 CLOS, LACP, MCT/vLAG).

L2/L3 Routing & Switching :

• Implement and manage dynamic routing protocols (BGP, EVPN, OSPF) for WAN/DC interconnects, ECMP load balancing, and VRRP gateway redundancy.

Network Security :

• Secure network traffic across untrusted boundaries using IPsec VPNs (IKEv2, ESP). Configure stateful firewalls, connection tracking (Conntrack), and NAT rules using IPTables/Netfilter and NFTables.

Automation, Telemetry & Lifecycle Management :

• Build, test, and validate network topologies locally using Vagrant and hypervisors (KVM/QEMU) prior to production rollouts. Develop resources to handle platform upgrades, real-time streaming telemetry architectures (gRPC, ProtoBuf, Kafka), and network lifecycle management.

Technical Requirements & Skill Stack : Cloud & Virtualization Platforms :

• OpenStack (Neutron, Nova, Metadata Service), OpenStack Ansible, KVM/QEMU, DevStack

Software-Defined Networking (SDN) :

• Open vSwitch (OVS), Open Virtual Network (OVN), OpenFlow, SDN Controllers

Overlay & Encapsulation :

• VxLAN, GENEVE, VLAN (802.1Q)

L2/L3 Protocols & Data Center :

• BGP, EVPN, OSPF, ECMP, VRRP, IPv4/IPv6, ARP/NDP, Ethernet (802.3), STP/RSTP, L3 CLOS, LACP, MCT/vLAG

Cloud-Native & Telemetry :

• Kubernetes, Docker, Kubernetes Controllers, Operator SDK, CRDs, gRPC, Protocol Buffers, Kafka, Numaflow

Security & Packet Inspection :