{"id":3035013,"url":"https://alion.io/job/ebay-lead-full-stack-engineer","title":"Lead Full Stack Engineer","company":{"id":7519,"name":"eBay","domain":"ebay.com","url":"https://alion.io/company/ebay","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":26,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":20,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Toronto, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":87000,"max_usd":149000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":78},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Node JS","optional":false},{"name":"RabbitMQ","optional":false},{"name":"React.js","optional":false},{"name":"Scala","optional":false},{"name":"Spring Boot","optional":false},{"name":"AI Agents","optional":true},{"name":"JavaScript","optional":true},{"name":"LLM","optional":true}],"status":"live","first_seen_at":"2026-09-10T00:00:00Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-10-22T05:55:31Z","board_verified":false,"closed_at":null,"days_open":44,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":44},"description":"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.\nOur 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.\nJoin a team of passionate thinkers, innovators, and dreamers - and help us connect people and build communities to create economic opportunity for all.\nAbout the Team & Role\nJoin eBay's Ad-Tech Innovation team and help build the next generation of advertising for millions of buyers and sellers worldwide. As a Lead Full Stack Engineer, you'll drive end-to-end development of scalable advertising solutions, from engaging user experiences to backend services and data platforms. You'll employ AI-powered development tools and collaborate with ML engineers to integrate LLM and agentic capabilities into next-generation ad products. This is a high-impact opportunity to solve complex challenges, influence technical direction, and accelerate innovation in a fast-growing ad-tech environment.\nLearn About Our Work:\neBay Advertising Insights: eBay Advertising\n\nPromoted Listings on eBay: eBay Seller Center - Promoted Listings\n\nKey Responsibilities:\nDesign and build innovative advertising and commerce features that help eBay sellers and advertisers grow their business.\n\nDevelop scalable, highly available applications, APIs, and services using technologies such as React, Node.js, Java, and Scala.\n\nOwn end-to-end delivery of complex features, from technical design and architecture through deployment and production support.\n\nDrive technical decisions, system design, and cross-team collaboration to ensure scalable, reliable, and maintainable solutions.\n\nLeverage AI-powered development tools and workflows to improve engineering productivity, code quality, testing, and deployment efficiency.\n\nPartner with ML and AI teams to develop intelligent advertising capabilities, including recommendations, automation, and AI-driven campaign management.\n\nContribute to a culture of continuous learning, Agile development, open-source collaboration, and rapid software delivery.\n\nMentor team members, participate in technical discussions, and help shape engineering best practices across the organization.\n\nQualifications\nBS in Computer Science or related field with 10+ years of experience, or MS with 7+ years.\n\nTechnical Requirements\nStrong experience building modern web applications with React (or similar frameworks), HTML/CSS, and responsive design.\n\nProficiency in backend development with Node.js, Java (17+), and Spring Boot.\n\nExperience designing and building scalable APIs, distributed systems, and high-traffic applications.\n\nStrong knowledge of messaging technologies (Kafka, RabbitMQ), relational and NoSQL databases, and data modeling.\n\nArchitecture & Engineering\nProven system design expertise with distributed systems, including scalability, reliability, and performance trade-offs.\n\nExperience leading end-to-end technical design, architecture reviews, and cross-functional engineering initiatives.\n\nStrong foundation in computer science fundamentals, including data structures and algorithms.\n\nTools & Practices\nExperience with CI/CD pipelines and modern development tools.\n\nFamiliarity with AI-assisted engineering tools and AI-driven automation workflows.\n\nAdditional Details\nThis job posting relates to an existing vacancy within eBay.\neBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at . We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility.\nWe use cookies to enhance your experience and may use AI tools for administrative tasks in the hiring process. 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