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:Authenticity Guarantee is an important initiative in eBay where a select category of items are authenticated by professional authenticators to increase buyer confidence, satisfaction & trust. Authentication Technology team is responsible for building software solutions for orchestrating the process of authentication. This involves building software solutions for receiving, shipping, warehouse operations, storage, imaging, mobile applications on android platform, integration with custom hardware & RFID readers. About the role:We’re looking for a Lead Front-End Software Engineer to drive the architecture, quality, and delivery of modern web applications across multiple product teams. You will combine hands-on technical leadership with strategic influence — setting front-end standards, mentoring engineers, and ensuring scalable, high-performance user experiences. This is a high-impact role for someone who thrives in distributed teams, cares deeply about engineering excellence, and can balance speed with quality in an enterprise product environment.ResponsibilitiesTechnical Strategy & ArchitectureDefine and evolve front-end architecture across multiple product areasDrive long-term technical vision for scalability, performance, and maintainabilityEstablish standards for design systems, state management, testing, and CI/CDLead architectural reviews and influence cross-org technical decisions Execution & DeliveryWork closely with UX/UI designers to translate designs into high-quality implementationsLead complex, multi-quarter initiatives from design to productionDecompose ambiguous product requirements into scalable technical solutionsEnsure operational excellence (performance, accessibility, reliability, observability)Improve engineering velocity through tooling, automation, and best practicesEngineering ExcellenceRaise the quality bar through rigorous code reviews and technical mentorshipChampion modern web standards and best practicesDrive measurable improvements in page load performance, error rates, and UX qualityEstablish metrics and SLAs for front-end performance and reliability Leadership & InfluenceMentor junior engineers & help them grow in their careersInfluence product and design through strong technical judgmentContribute to hiring and talent developmentLead through influence across distributed teamsMinimum Qualifications (Must Have)8+ years of experience building large-scale web applications2+ years of technical leadership experience across multiple teamsExpert proficiency in JavaScript and TypeScriptDeep experience with modern frameworks (React required; Vite, Tailwind CSS preferred)Experience integrating with REST and/or GraphQL APIsExperience building and deploying applications on Google Cloud Platform (GCP)Familiarity with services such as Cloud Run, Cloud SQL, Cloud Storage, Firebase, or Cloud CDN, Networking, Load balancerUnderstanding of cloud-native architecture and security best practicesProven experience designing scalable front-end architecturesStrong knowledge of state management, component architecture, and design systemsExperience building and maintaining comprehensive test suites (unit, integration, E2E) using Jest, Vitest, Cypress preferred Hands-on experience with CI/CD pipelinesStrong understanding of web performance optimization Preferred QualificationsExperience developing mobile applications on Android platformExperience developing backend APIs using REST/GraphQL in Java/Ruby or similar object oriented languagesGoogle Cloud Developer or Architect certificationFamiliarity with observability and monitoring toolsExperience with micro-frontend architecturesExperience contributing to open-source projectsExperience building AI/ML applications, working with LLMs and integrating ML systemsInterest or experience training or finetuning ML models is added advantageAdditional DetailsThe base pay range for this position is expected in the range below:C$142,400 - C$190,100Base 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.eBay 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 talent@ebay.com. We will make every effort to respond to your request for accommodation as soon as possible. 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