Staff Software Engineer - Backend

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.

** Must Reside in Ontario **

About the team and the role: 
 

We are the eBay Seller Experience Team, dedicated to driving impactful projects and encouraging an outstanding, inclusive team culture.

As a Staff Software Engineer in the Seller Experience - Inventory Management team, you will have the unique opportunity to work on one of the largest and most dynamic e-commerce platforms in the world. This role involves creating and handling billions of listings, directly influencing the success of millions of sellers and buyers globally.

The scale and complexity of eBay's inventory management system presents a challenging yet rewarding environment where innovative solutions and ground breaking technologies are at the forefront. If you're passionate about solving sophisticated problems at scale and want to make a tangible impact on a global platform, this role offers unparalleled opportunities for growth and innovation. Join us in shaping the future of e-commerce!

What you will accomplish:

• Support the design and development of backend systems using JAVA/J2EE and NoSQL, ensuring high performance and scalability.

• Analyze and enhance the speed, efficiency, scalability, stability, availability, and security of customer-facing applications and APIs, implementing standard methodologies and innovative solutions.

• Develop comprehensive documentation and testing infrastructure to ensure production-level readiness and maintainability.

• Create and oversee the development of automation tests in Java, JUnit, Selenium, and other internal Java-based automation frameworks for REST/GraphQL services and messaging components.

• Collaborate with product managers, business units, and UI design teams to understand product requirements and translate them into engineering specifications, providing technical leadership and mentorship to junior team members.

What you will bring:

• Prefer 7+ years of professional experience in software development, with a strong background in designing and building scalable systems for large-scale online platforms.

• Expertise in programming languages such as Java, C++, or similar, and extensive experience with frameworks and technologies like J2EE, Spring, GraphQL, ORACLE, and NOSQL databases.

• In-depth understanding of computer science fundamentals, data structures, and algorithms. Proven track record with analyzing complex problems and develop efficient, innovative solutions, with a focus on optimizing performance and scalability.

• Proven experience in system architecture and design, including the ability to create and maintain high-performing, reliable, and secure applications. Experience in leading architectural discussions and driving technology strategy.

• Strong skills in developing automated tests using tools like JUnit, Selenium, and other testing frameworks to ensure software quality and reliability, with a track record of implementing standard methodologies in testing and quality assurance.

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