Sr Staff Software Engineer, MarTech

In this role you will help build advertising and marketing technology platforms that empower sellers and advertisers on eBay. You’ll work in a high-scale environment spanning frontend, backend, APIs, data pipelines, and AI-assisted workflows, partnering with product, design, analytics, and ML teams. You own end-to-end delivery and drive design decisions to deliver measurable seller and customer impact. This is a hands-on role with a focus on technical excellence and continuous learning, in a fast-moving, collaborative culture.

• Build advertising and marketing tech capabilities to help sellers and advertisers grow their business and improve the customer experience
• Develop scalable applications, APIs, and services using Marko, React, Node.js, Java, and Scala
• Own end-to-end delivery of complex features from design to production support and iteration
• Drive technical decisions and system design with cross-functional teams to ensure scalable and maintainable solutions
• Leverage AI-assisted development tools to boost velocity while collaborating with ML engineers on AI-powered capabilities
• Foster a culture of continuous learning, agile delivery, technical excellence, and mentoring across engineering

• BS in Computer Science or related field with 10+ years of experience, or MS with 8+ years of experience
• Strong experience in Java (17+) and building services with Spring Boot or similar frameworks
• Experience with distributed systems, event-driven architectures, and message queues (Kafka, RabbitMQ, etc.)
• Experience with relational and/or NoSQL databases; design and query optimization; familiarity with Hadoop, Spark, or Flink is valuable
• Proven ability to lead end-to-end system design, create technical design docs, guide reviews, and evaluate tradeoffs (scalability, availability, latency, cost)
• Experience with AI-assisted development practices; exposure to GraphQL, federated APIs, LLM-powered features, agentic workflows, or open-source contributions is a plus

• cross-functional collaboration
• mentoring
• problem-solving
• Java (17+)
• Spring Boot
• Marko