We are searching for a skilled, creative, and passionate Backend Software Engineer to build backend services, APIs, and applications that facilitate core seller and marketplace experiences. You will engage with engineers, product managers, and architects to develop solutions that elevate customer experiences and deliver valuable business impact. In this role, you will contribute to systems that are essential to eBay's global marketplace. You will have opportunities to address interesting technical challenges, work with modern technologies, and learn from experienced engineers while building high-quality software solutions. You will contribute to features throughout the software development lifecycle, including building, implementation, testing, deployment, and operational support. You will collaborate with teammates to deliver reliable and maintainable solutions and participate in code reviews, technical discussions, and continuous improvement initiatives. You will work with APIs, databases, caching technologies, and messaging systems while developing strong software engineering practices and technical expertise. Our ideal applicant shows intellect, curiosity, dedication, pride, respect, teamwork, and effective communication skills. They should possess solid computer science knowledge, a passion for learning, a growth mindset, and the ability to cooperate and produce top-quality solutions rapidly. Qualifications: • BS EE or CS degree; 5 + years related experience (Or Masters and 4 + years related experience or PhD and 1 + years experience) • Strong computer science fundamentals including object-oriented development, data structures, algorithms, and software composition principles. • Proficiency in at least one modern programming language and willingness to learn and work across technologies. Experience with Java, Kotlin, and/or Python is preferred. • Familiarity with backend application development and RESTful APIs. • Having knowledge of GraphQL concepts and methods for integrating services is advantageous. • Basic understanding of relational databases and SQL. • Familiarity with document databases, caching technologies, messaging systems, or event-driven architectures is an advantage. • Understanding of software quality practices including clean code, unit testing, and writing tests before coding. • Familiarity with modern application development frameworks and tools. • Familiarity with Agile/Scrum development methodologies. • Knowledge of AI-supported development applications and coding agents such as Claude Code, GitHub Copilot, Cursor, or equivalent tools is beneficial. • Strong analytical, problem-solving, communication, and collaboration skills. • Experience in e-commerce, marketplace, or consumer-facing applications is advantageous. Education: BSCS, BSEE, or equivalent technical degree. Additional Details The base pay range for this position is expected in the range below: C$118,000 - C$157,500 Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including RRSP eligibility, various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment. This job posting relates to an existing vacancy within eBay.