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# Senior Staff Frontend Engineer

- **Company:** eBay Firmenprofil
- **Location:** Kleinmachnow, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Browser Compatibility, Code Review, Continuous Integration, Scrum Methodology, E2e Testing, Systems Integration, TypeScript, Web Applications, Web Usability, Datadog, GitHub Copilot, ReactJS, Cypress (Programming Language), Backend, Material UI, Playwright, Graphql, Front End Software Development, Restful APIs, Api Management, Microservices
- **Published:** September 9, 2026
- **Apply:** https://www.adzuna.de/details/5878715687

## About the Role

* Bachelor's in CS or related field with extensive experience in designing and developing highly scalable web applications in Agile/Scrum environments with modern CI/CD practices.
 * Deep expertise in React and TypeScript with a strong command of web fundamentals: browser rendering, network performance, accessibility, and modern JavaScript (ES2020+).
 * Experience building and maintaining design systems or component libraries at scale; proficiency writing unit, integration, and end-to-end tests (e.g., Jest, Playwright, Cypress).
 * Experience collaborating with backend teams on RESTful or GraphQL API contracts and integrating with microservices architectures.
 * Experience influencing technical direction across teams, mentoring engineers, and raising the overall frontend capability of an engineering organization.
 * Familiarity with frontend observability tooling (e.g., web vitals, error tracking, real-user monitoring) is a plus.
 * Experience with AI-assisted development tools (e.g., GitHub Copilot, Claude Code) is a strong plus

## Description

* Lead and own frontend architectural decisions, drive system-level innovation, and influence technical direction beyond your immediate team.
 * Define and uphold frontend engineering standards, coding guidelines, and technical culture; contribute meaningfully to the roadmap by surfacing investment opportunities, flagging risks, and shaping sequencing decisions.
 * Mentor engineers across levels through design reviews, pairing, and structured feedback to raise the team's overall frontend capability.
 * Build accessible, performant, and maintainable web applications in React and TypeScript; write clean, efficient, and well-documented code and conduct code reviews to ensure quality and consistency.
 * Collaborate with product managers, designers, and backend engineers to break down work into milestones with accurate estimations, deliver features, and maintain tests while resolving performance bottlenecks, rendering issues, and browser compatibility problems.