Software Engineer 3 – Network Security

About the role

The Network Security team builds and operates foundational network segmentation capabilities that help protect eBay’s production environments across clusters, datacenters, and cloud footprints. The team develops control-plane/data plane services and platform integrations that enforce policy boundaries, strengthen isolation, and improve the security and reliability of critical traffic flows.

What you'll do

• Design, build, and maintain reliable control-plane services that orchestrate network policy and segmentation across Kubernetes clusters and datacenters
• Develop integrations with SDN and CNI layers such as Istio, Envoy, Calico, or Cilium, along with Linux networking primitives such as iptables, nftables, routing
• Troubleshoot and debug Kubernetes, Linux networking, and distributed-systems issues, and contribute to incident response and postmortem follow-through
• Collaborate with partner teams across Security, SRE, and Cloud Platform to deliver reliable and maintainable platform capabilities
• Improve the reliability, scalability, and operational readiness of services through better rollout practices, configuration management, monitoring, and automation

What you need

• 5–9 years in cybersecurity
• Network security
• Linux
• Python
• Networking
• Kubernetes
• Incident response
• B.Tech or B.E. or B.Sc or BCA or M.Tech or MCA or M.Sc

Good to have

• TCP/IP
• CI/CD
• SQL
• NoSQL
• Go
• Kafka