Software Engineer 3 – Network Security
Ebay INC · 🌍 Bengaluru, India
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About the role
At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet. Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all. Software Engineer 3 – Network Security Team: Network Security Location: Bengaluru About the Team 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. Role Summary We are seeking a Software Engineer 3 to join the Network Security team with strong hands-on experience in backend systems with Kubernetes framework, and networking fundamentals. In this role, you will design, build, and maintain reliable software components and services that support network policy enforcement and segmentation across distributed environments. You will contribute to production-ready platform capabilities with a strong focus on quality, operability, scalability, and secure engineering practices. 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, and VXLAN. • Write production-quality code backed by unit and integration tests, CI/CD pipelines, and strong observability practices including metrics, logging, and tracing. • 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. • Participate in design discussions, evaluate technical tradeoffs, and contribute to implementation planning for features and enhancements. • Support a culture of engineering excellence through code reviews, documentation, and thoughtful operational ownership. Must-Have Qualifications • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience. • 5+ years of software engineering experience in backend or systems engineering. • Strong programming skills in Go, Python or a similar systems-oriented language, with hands-on experience building distributed services. • Solid understanding of TCP/IP, Linux, and container networking fundamentals. • Strong Kubernetes fundamentals and hands-on experience building or operating services, controllers, operators, or similar platform components. • Proven debugging and troubleshooting skills across Kubernetes, Linux networking, and distributed systems. • Experience running and maintaining services in cloud environments at scale. • Familiarity with CI/CD, observability, and production su