Sr Backend Engineer – Fashion (MTS1)

eBay • Toronto, ON

39d • Hybrid

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 and the role: We are the Fashion Vertical Engineering team within eBay’s Global Focused Category Organization. Our work spans eBay’s most critical surfaces—including the Homepage, My eBay, Vertical Experiences, and high-impact Growth products. We own the technology behind eBay’s Trust programs for luxury fashion, protecting multi-billion dollar annual GMV. Additionally, we drive zero-to-one initiatives that leverage innovative AI to transform personalized discovery and the upper-funnel shopping journey. You will partner with elite engineers, data scientists, and product leaders to build high-volume, resilient distributed systems on one of the world’s most visited platforms. We are seeking a Senior Backend Engineer for the Fashion Vertical team. In this high-impact role, you will provide the technical vision for our Trust business programs and AI-powered innovations. As a Senior Software Engineer, you won't just write code; you will drive establishment of E2E pipelines that manage sophisticated system behaviors across the entire e-commerce workflow. You will bridge the gap between domain partners, Science team and Product, owning the integration of advanced algos into scalable, personalized user experiences. We are looking for a self-motivated leader who thrives in agile environments and is committed to engineering excellence.

Requirements

• Bachelor's degree in EE, CS or other related field.
• 8+ years of experience in working in Java, GraphQL, Spring/Springboot, REST APIs, messaging systems and/or other backend programming languages
• Building data-driven applications (RDBMS, NoSQL, ElasticSearch)
• Delivers results in fast-paced environments (agile, TDD, CI/CD)
• Outstanding ability to navigate technical trade-offs, making high-stakes decisions that balance immediate business needs with long-term architectural health.
• Strong sense of E2E ownership with the ability to align multi-functional teams and mentor junior engineers toward technical growth.

Nice To Haves

• Experience with recommendation system or data pipeline is a plus but not required

Responsibilities

• Architectural Leadership: Translate complex business requirements into scalable software designs. Create clean, extensible, and maintainable codebases that serve as a standard for the organization.
• E2E Ownership: Drive the full software lifecycle for large-scale domains, ensuring excellence in design, development, testing, and 24/7 observability.
• Technical Influence: Act as a key decision-maker for the team’s technology stack, guiding peers and partners toward robust, future-proof technical solutions.
• Engineering Velocity: Identify areas of high volatility and design flexible systems to minimize technical debt and accelerate delivery speed.
• Strategic Collaboration: Partner with multi-functional leaders (Product, Design, Eng, Science) to define and implement innovative roadmaps that align with global business goals.
• Quality: Champion testable architectures and continuous delivery practices to ensure the highest levels of system reliability.
• Execution & Mentorship: Break down sophisticated projects into executable landmarks. Provide deep technical coaching, high-standard code reviews, and mentorship to elevate the engineering bar across the team.
• Systems Thinking: Proactively identify gaps across functional areas, propose long-term engineering roadmaps, and drive the resolution of systemic issues.
• Operational Excellence: Lead the strategy for E2E testing, release management, and on-call support for our "always-on" global platform.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees