Full Stack Engineer Research Systems

At eBay were more than a global ecommerce leader were changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. Were 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. Were 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.

Looking for a place where you can build tools and systems that help eBay deeply understand customer needs and behaviors at scale Join eBays Research Technology team and help shape the platforms dashboards and customer management systems that power insights and decisionmaking for researchers designers and product partners across the company.

Were seeking a Full Stack Engineer (L24) to design and build endtoend web applications APIs and integrations that support research dashboards customer management workflows and internal this role youll work across React and Java services connecting to thirdparty APIs and existing internal systems to deliver reliable productionready capabilities. This is an individual contributor role where youll own features from design through deployment and monitoring.

What youll do

• Design implement and ship fullstack features across React frontends services and Java backend components with an emphasis on performance reliability and maintainability.

• Design and evolve RESTful APIs and service contracts including resource modeling error handling and versioning in partnership with other engineering teams.

• Integrate with thirdparty APIs and internal platforms handling auth flows rate limits and failure modes gracefully.

• Build and maintain dashboards internal tools and lightweight customer management systems and configuration tools that give researchers and partner teams powerful safe controls over customer records cohorts and workflows.

• Work effectively within and around existing infrastructure finding pragmatic solutions and designing extensions that respect current constraints while moving the system forward.

• Read understand and refactor existing codebases improving structure test coverage and observability as you go.

• Take ownership of the full lifecycle of your work: technical design implementation automated testing code review deployment monitoring and incident followup.

• Collaborate closely with design product research and other engineering partners to shape requirements clarify tradeoffs and deliver highquality user and developer experiences.

• Contribute to internal standards and best practices for fullstack development API design and tooling helping the team move faster and more safely over time.

Minimum qualifications

• 47 years of professional software engineering experience including significant fullstack work on production systems.

• Strong proficiency with React (or a comparable modern frontend framework) building modular componentbased UIs backed by robust state management and testing.

• Handson experience building services (TypeScript or JavaScript) including Expressstyle HTTP servers middlewares and integrations with downstream services.

• Solid Java programming skills and experience working within existing Java services or microservices (e.g. Spring or similar frameworks).

• Demonstrated experience designing and implementing RESTful APIs including data modeling authentication/authorization and API documentation.

• Experience integrating with thirdparty APIs (REST/JSON or similar) including handling retries backoff error classification and observability.

• Comfortable working in and improving existing codebasesincluding reading unfamiliar code debugging complex issues and incrementally refactoring without breaking behavior.

• Familiarity with building dashboards internal tools or customer management systems that expose configuration or customer data in safe userfriendly ways.

• Proficiency with relational databases (e.g. MySQL PostgreSQL) and basic query design; familiarity with at least one NoSQL or document store is a plus.

• Strong foundation in software engineering fundamentals: testing version control (Git) code reviews and CI/CD workflows.

Preferred qualifications

• Experience designing or evolving internal platforms or tooling used by multiple teams (e.g. analytics dashboards experimentation tools content/experience management or workflow systems).

• Familiarity with modern frontend tooling (Webpack/Vite linting typechecking testing frameworks) and performance optimization techniques.

• Experience working with feature flags configuration services or experimentation frameworks.

• Exposure to cloudnative environments and containerized workloads (e.g. Docker Kubernetes) and associated observability stacks (logs metrics tracing).

• Comfortable navigating ambiguity breaking down loosely defined problem spaces into clear milestones and shippable slices.

• Strong communication skills with the ability to explain complex technical concepts to nontechnical partners and to write clear technical designs and documentation.

Additional Details

The base pay range for this position is expected in the range below:

Base 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 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 eBays commitment to ensuring digital accessibility.

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