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About the TeamThe Unified Feature Store (UFS) team at eBay, part of the Golden DataSet Platform (GDS) initiative, is building the next generation of eBay's AI and decisioning platform. We are developing a declarative, self-service platform that enables engineers to define, discover, compute, validate, and serve features consistently across both training and real-time inference. Our mission is to eliminate feature duplication, ensure training-serving parity, and provide reliable, scalable, and low-latency feature infrastructure that powers fraud detection, payments, search, personalization, and other mission-critical experiences across eBay.
About the RoleWe are seeking a Senior Staff Software Engineer to help shape the architecture and technical direction of eBay's Unified Feature Store. In this role, you will design and build the distributed systems that power feature computation, storage, serving, and lifecycle management at massive scale. Your work will directly improve developer productivity, accelerate AI model delivery, and establish UFS as the single source of truth for feature engineering across eBay.
While familiarity with feature stores, stream processing, and data infrastructure is valuable, your primary focus will be on building the distributed platform itself, solving challenging problems in scalability, consistency, reliability, and low-latency serving.
If you're passionate about large-scale distributed systems, backend infrastructure, platform architecture, and solving hard scalability problems, this is the right team for you.
What You'll AccomplishOwn the architecture, design, and development of large-scale distributed services powering eBay's AI and decisioning infrastructure.
Build core platform services for stream processing, state management, feature serving, and distributed computation.
Solve distributed systems challenges in exactly-once processing, fault tolerance, scalability, online/offline consistency, and high-throughput processing.
Develop reusable frameworks, runtimes, and self-service tooling for distributed platforms.
Drive architecture decisions across scaling, reliability, consistency, partitioning, idempotency, and fault isolation.
Improve observability, alerting, incident response, and operational excellence for critical platform services.
Lead capacity planning, performance optimization, and cost efficiency for distributed systems.
Build automation and tooling that simplify deployment, debugging, and recovery.
Partner with engineering and product teams to deliver scalable platform solutions.
Lead design reviews, mentor engineers, and raise the bar for distributed systems engineering.
Eliminate architectural debt, scalability bottlenecks, and reliability gaps through platform modernization.
BS/MS in Computer Science (or related field) with 10+ years (or MS with 8+ years) building large-scale distributed systems or platform infrastructure.
Proven experience designing and operating high-throughput, low-latency, production-grade distributed services.
Deep knowledge of distributed systems, including partitioning, replication, consistency, concurrency, idempotency, backpressure, and failure recovery.
Strong programming skills in Java, Python, Go, or similar languages.
Experience building platform services, frameworks, APIs, libraries, or runtime infrastructure.
Hands-on expertise with Kafka, Flink, Spark and RDBMS/NoSQL.
Experience operating production systems, including observability, performance tuning, incident response, debugging, and on-call ownership.
Ability to make sound architectural trade-offs across correctness, reliability, performance, operability, and cost.
Experience designing clean interfaces, backward-compatible migrations, and safe rollout strategies.
Strong technical leadership, communication, mentorship, and cross-functional influence.
Additional Details
This job posting relates to an existing vacancy within eBay.
eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at [email protected]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility.
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