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.At eBay, we’re more than a global ecommerce leader — we’re transforming how the world shops and sells. Our platform empowers millions of buyers and sellers across 190+ markets worldwide. We are constantly pushing boundaries to reinvent the future of ecommerce for enthusiasts.Our culture is built on putting customers first, embracing authenticity, encouraging bold ideas, and enabling everyone to bring their unique selves to work every day. Together, we are shaping the future of our customers, our company, and our planet.Join a team of passionate thinkers, innovators, and builders working to connect people, foster communities, and create economic opportunity for all.About the team and the role:As a Senior MTS Software Engineer in eBay’s Identity team, you will design, build, and scale critical identity services that power authentication and user trust across the platform.This includes systems such as:Authentication & AuthorizationUser Onboarding & ManagementWeb Services SecurityDevice FingerprintingAccount Linking / Entity ResolutionYou will work on modern identity protocols like OAuth and OpenID Connect, supporting hundreds of millions of users across web and mobile platforms.As a senior engineer, you will play a key role across the full product lifecycle — from architecture and design to development, deployment, and continuous improvement — collaborating closely with Product, Design, and Architecture teams.What you'll do and learn:Lead and deliver complex technical initiatives independently across teams and domainsDefine and drive technical strategy, architecture, and long-term roadmapAuthor and influence Architecture Decision Records (ADRs) to guide engineering directionOwn large functional areas with deep technical expertiseDesign scalable, secure, and high-performance systems with a strong systems mindsetDrive projects end-to-end from concept to productionAct as a change agent to elevate engineering standards, culture, and best practicesMentor engineers and promote knowledge sharing across teamsBuild flexible and future-proof systems to adapt to evolving platform needsLead support, release processes, and on-call for a 24/7 always-on platformEvaluate and adopt emerging technologies to improve performance, scalability, and complianceWhat you will bring:Technical ExpertiseStrong backend development experience in Java or Kotlin (required)Deep experience building large-scale distributed systems and APIsStrong system design expertise including:REST / GraphQL APIs (GraphQL preferred)Messaging systemsRDBMS and NoSQL databasesContainers and infrastructure layersExperience implementing identity and federation protocols (OAuth, OpenID Connect)Proven ability to drive architecture across multiple domainsLeadership & ImpactExperience defining and executing technical strategy and roadmapStrong ability to influence stakeholders and align on complex architectural decisionsTrack record of improving engineering velocity and code quality across teamsExperience leading large cross-team initiatives from inception to deliveryMindset & CollaborationExcellent decision-making skills in ambiguous and fast-changing environmentsStrong ownership, communication, and collaboration skillsPassion for mentoring, coaching, and growing teamsGrowth mindset with continuous learning and adaptabilityAbility to work across adjacent domains (product, program, people management)Qualification Bachelor’s degree in Computer Science, Engineering, or related field10+ years of experience building large-scale distributed systems5+ years as a technical lead or architect in identity management domain owning end-to-end system designAdditional DetailseBay 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, veteran status, 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. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities. We use cookies to enhance your experience and may use AI tools for administrative tasks in the hiring process. To learn how we handle your personal data and use AI responsibly, please visit our Talent Privacy Notice, Privacy Center, and AI Hiring Guidelines.
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