Backend Software Engineer

eBay•Toronto, ON

3d•CA$118,000 - CA$157,500

About The Position

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. Are you seeking a company that fosters passion, courage, and creativity, where you can join the team developing the future of global commerce? Want to build how millions of people buy, sell, connect, and share worldwide? If you want to be part of a purposeful community dedicated to inventing an ambitious and inclusive work environment, join eBay – a company you can be proud to be with. If you are passionate about building innovative platforms and services that drive essential seller and marketplace experiences, then join us. Our team is dedicated to delivering scalable, reliable, and high-quality solutions that help sellers grow their businesses and succeed on one of the world's largest online marketplaces. 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.

Requirements

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 work across technologies.
Experience with Java, Kotlin, and/or Python is preferred.
Familiarity with backend application development and RESTful APIs.
Basic understanding of relational databases and SQL.
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.
Strong analytical, problem-solving, communication, and collaboration skills.

Nice To Haves

Having knowledge of GraphQL concepts and methods for integrating services is advantageous.
Familiarity with document databases, caching technologies, messaging systems, or event-driven architectures is an advantage.
Knowledge of AI-supported development applications and coding agents such as Claude Code, GitHub Copilot, Cursor, or equivalent tools is beneficial.
Experience in e-commerce, marketplace, or consumer-facing applications is advantageous.
BSCS, BSEE, or equivalent technical degree.

Responsibilities

Build backend services, APIs, and applications that facilitate core seller and marketplace experiences.
Engage with engineers, product managers, and architects to develop solutions that elevate customer experiences and deliver valuable business impact.
Contribute to systems that are essential to eBay's global marketplace.
Address interesting technical challenges, work with modern technologies, and learn from experienced engineers while building high-quality software solutions.
Contribute to features throughout the software development lifecycle, including building, implementation, testing, deployment, and operational support.
Collaborate with teammates to deliver reliable and maintainable solutions.
Participate in code reviews, technical discussions, and continuous improvement initiatives.
Work with APIs, databases, caching technologies, and messaging systems while developing strong software engineering practices and technical expertise.