Staff Streaming/Messaging Infra Engineer

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. About the Team and the Role Join the infrastructure engineering team responsible for building, scaling, and operating eBay’s core messaging and real-time streaming platforms. Our infrastructure powers mission-critical, high-throughput applications across eBay's global ecosystem. In this role, you will act as a core developer and architect, taking full ownership of both the control plane and data plane for our distributed streaming platforms—including Apache Flink and Apache Kafka—deployed across multiple private cloud Kubernetes clusters spanning various Availability Zones (AZs) and Data Centers (DCs). You will also play a key role in designing and evolving our next-generation streaming lakehouse storage systems. What You Will Accomplish Architect & Scale Infrastructure: Design, build, and operate eBay’s core control plane and data plane for Apache Flink and Apache Kafka on multi-cluster Kubernetes environments across multiple DCs/AZs. Build Streaming Lakehouses: Lead the design and development of our real-time streaming lakehouse storage architecture, enabling low-latency analytical workloads at massive scale. Ensure Operational Excellence: Drive high availability, automated fault recovery, and zero-downtime operations for large-scale production streaming topologies. Enhance System Observability: Advance enterprise monitoring, distributed tracing, automated alerting, and failure-diagnosis tooling to maximize platform uptime. Collaborate Globally: Partner with cross-functional architecture and platform teams worldwide to shape the future of eBay's real-time data ecosystem. Demonstrated proficiency building   production-grade software with AI coding agents , improving engineering velocity while maintaining high standards for quality, availability, and maintainability. Ability to   decompose problems and provide agents with the right context, specifications, constraints, and validation criteria . Ability to   capture and express business, architecture, codebase, and operational knowledge  so AI coding agents can execute complex tasks accurately and autonomously. Hands-on experience delivering   complex, production-quality software using AI coding tools  such as Claude Code, Codex, etc.

Core Distributed Systems Experience: Deep hands-on background in computer science fundamentals (data structures, concurrency, OS internals, and networking) with strong expertise in Java, Rust, or C++ . Stream Processing Engine Expertise: Strong hands-on experience developing, tuning, and operating Apache Flink at scale (e.g., state backend management, checkpointing tuning, custom operators, Flink Kubernetes Operator). Distributed Messaging Deep-Dive: Proven experience with Apache Kafka (or Pulsar/RocketMQ), including core broker architecture, partition strategy, and control/data plane management. Container & Multi-Cluster Orchestration: Solid experience running high-throughput stateful workloads on Kubernetes across hybrid or private cloud environments. Streaming Lakehouse Knowledge: Familiarity with modern streaming table formats and storage engines such as Apache Paimon, Apache Iceberg, or Apache Fluss .

Direct experience writing custom Kubernetes operators or control planes for distributed