Sr. Software Engineer, Backend - Ads

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 :The Advertising Team is reinventing advertising at eBay! We’re creating innovative ad-tech solutions to optimize the ad monetization and experience on eBay. Our goal is to create a valuable experience for both buyers and sellers, while also driving performance for advertisers. To that end, we are innovating rapidly in the ad-tech space and there is no shortage of new challenges for motivated individuals.The team builds and manages mission critical systems at a scale and complexity that is very unique. eBay’s ad products serve 190 million buyers worldwide, and deal with 50 billion daily events across various stacks.As a Sr Software Engineer, you will work closely with designers, product managers, and other engineers (frontend, backend, machine learning, quality) to revolutionize the advertising space for eBay and beyond.

Prior work knowledge of click fraud or security systems will have added advantage in this role.What you will accomplish:

Design elegant technical solutions to customer problemsDesign new experiences for eBay sellers and advertisers to promote their products, manage their advertising campaigns, and improve their salesBuild highly available, scalable user facing applications and RESTful Public APIs in an Agile environmentDevelop systems using Java and Scala and maintain a cadence of building, testing, and deploying your code in a continuous manner.Learn new external and internal technologies as the need/opportunity arisesOperate within our internal open source community where we share a variety of projects and codebases and share knowledge with the team, filling in any technical gaps and contributing to technical conversationsWhat you will bring:

BS/BA in Computer Science or related field plus 4 years work experience OR MS with 3 years of relevant experienceExperience with JVM languages (Java, Kotlin, Scala), Hadoop and/or NodeJSExperience in building large scale Web Services and Backend Applications using Java/J2EE, RESTful Web Services, HTTP and JSON technologiesDeep understanding of design patterns, and experience working in a layered architectureKnowledge of core CS concepts such as common data structures and algorithmsExperience in interacting with external partners and architecting the systems

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