Architect - Traffic and Security

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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. Job Type: Full-time About the Team Traffic Engineering powers secure, scalable, highly available traffic systems that support eBay’s global commerce platform. We build and operate traffic management and security capabilities across edge and service layers, including PoP strategy, caching, Kubernetes networking, and reliability improvements based on monitoring insights. Role Summary As a Traffic Engineering Architect , you will own architecture and technical direction across eBay’s traffic engineering platform, spanning traffic management, load balancing, service connectivity, PoP/caching optimization, and traffic security (rate limiting, bot mitigation, etc.) . You will lead cross-team design, guide execution on critical initiatives, and drive measurable improvements in latency, availability, resilience, and security. Key Responsibilities • Define architecture and technical strategy for global traffic systems: traffic management, load balancing, service connectivity, PoP optimization, caching, and traffic security controls. • Architect and deliver rate limiting and bot mitigation solutions across edge/service layers in partnership with Security. • Design and build high-performance, low-latency distributed systems using C/C++ and Go (Java in relevant components as needed). • Drive Kubernetes networking and platform patterns at scale, including CNI integrations, service mesh, IPAM , and production-grade deployment models. • Own technical tradeoffs across performance, scalability, reliability, security, operability, maintainability, and delivery timelines. • Establish/advance observability and engineering metrics; use production signals to improve SLOs, reduce incidents, and increase efficiency. • Lead operational excellence: incident prevention, resiliency design, capacity/performance tuning, and automated remediation where appropriate. • Align roadmaps and execution across Product, Infrastructure, SRE/Operations, and Security; resolve cross-team dependencies and drive technical consensus. • Mentor senior engineers/tech leads through architecture reviews, design reviews, and code reviews; raise engineering standards and consistency. • Contribute to innovation via open-source engagement, patents, and forward-looking exploration relevant to traffic systems. Required Qualifications • Bachelor’s or Master’s degree or equivalent experience in Computer Science, Engineering, or related field (or equivalent practical experience). • 15+ years of software engineering experience with significant depth in networking/traffic engineering , distributed systems, and/or cyber security. • Strong proficiency in C/C++ and Go (Java acceptable/valuable for specific subsystems); experience building production-grade, high-performance systems. • Deep knowledge of Linux networking , traffic management fundamentals, and systems performance optimization. • Strong experience with Kubernetes and cloud-native infrastructure at scale. • Proven experience designing secure, scalable, observable distributed platforms and operating them in production. • Demon

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