Senior Full Stack Engineer

eBay • Toronto, ON

70d

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. About the Team & Role Goldin, an eBay company, is the leading collectibles marketplace, connecting millions of customers around the world. Our mission is to be the most trusted destination for collectors of trading cards, memorabilia, comics, and more. Collectors are at the centre of everything we do—and that starts with hiring exceptional people. Goldin’s success is driven by a passionate, diverse team spanning consignment experts, engineers, product leaders, and beyond. We invest deeply in our people, our culture, and our shared vision. If you’re excited by high-growth markets, modern technology, and building products collectors love, Goldin is the place for you. We are seeking a Senior Full Stack Engineer with to help redefine and elevate the Goldin platform. In this role, you’ll work across the stack, collaborating with high-velocity teams to design, build, and scale consumer-facing experiences that power a global marketplace.

Requirements

• Bachelor’s degree in Computer Science or a related field with 6+ years of relevant experience, or Master’s degree with 4+ years of relevant experience
• Strong expertise in Python and Javascript, and deep familiarity with their ecosystems and frameworks
• 2+ years of hands-on AWS experience, including services such as Lambda, Cognito, EKS, OpenSearch, Kinesis, S3, SNS, and SQS
• Experience with containerization and orchestration tools such as Docker and Kubernetes
• Recent experience building consumer-facing applications using React
• Strong background in serverless computing and event-driven architectures
• Experience working with relational and NoSQL databases, including MSSQL, PostgreSQL, and DynamoDB
• Hands-on experience designing and consuming web services (REST, GraphQL)
• Familiarity with messaging and streaming platforms such as Kinesis, SQS and SES
• Solid understanding of building modular, extensible, and secure APIs
• Exposure to test automation and quality practices (e.g., contract testing, performance testing)
• Strong analytical, communication, and documentation skills
• Working knowledge of Agile/Scrum development methodologies

Nice To Haves

• Experience addressing accessibility issues is a plus

Responsibilities

• Design, build, and evolve scalable, cloud-native software architectures on AWS
• Own features end-to-end, from design and architecture through implementation, testing, deployment, and monitoring
• Contribute to API design that supports seamless web and mobile user experiences
• Review code and provide thoughtful feedback to ensure high-quality, maintainable, and consistent implementations
• Analyze existing applications and data stores to identify performance, reliability, and scalability improvements
• Collaborate closely with engineers, product managers, and designers to deliver impactful solutions

Benefits

• a full range of medical, financial, and/or other benefits (including RRSP eligibility, various paid time off benefits, such as PTO and parental leave)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior