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 :
- IPsec (IKEv2, ESP), IPTables/Netfilter, NFTables, Conntrack

DevOps, Automation &

- Languages :
- Golang (Go), Python, C, Vagrant, Ansible, Linux CLI, Bash, CI/CD (Jenkins, Git), OpenAPI / REST APIs

Preferred Qualifications :

- Bachelor's degree in Computer Science or a related field with 8 - 15 years of software development and infrastructure experience across cloud engineering, telecommunications, or large-scale data center environments.
- Deep expertise in Linux networking concepts, packet path traversal, and kernel-level networking subsystems.
- Proven track record with production OpenStack deployments using OVN/OVS as the default networking backend.
- Solid proficiency in Golang, Python, or C with hands-on experience in white-box switch network management applications.

Benefits and Perks :

- Competitive Compensation and Equity
- Medical Healthcare for you and your family
- Hybrid Work Model
- Wellness Perks
- Professional Development/Global certifications
- Reward and Recognition Programs
- Team Building Activities

📌 Senior Cloud Network Infrastructure Engineer - SDN/Kubernetes (India)
🏢 Subir Sinha Hr u0026 Corporate Advisory
📍 India