About the role
As a Lead/Staff Frontend Engineer, you will help shape the technical direction of our frontend engineering while remaining hands-on with development. You will work across product, design, and engineering to build scalable frontend applications and improve the way we develop, test, and deliver them. Own mobile engineering end-to-end: architecture, technology choices, delivery, and production quality.
Responsibilities:
- Design and develop complex frontend applications using modern technologies, including TypeScript, React, and Next.js, with a focus on scalability, maintainability, and user experience.
- Lead frontend architecture and technical design, including application structure, state management, API integration, component architecture, and frontend performance.
- Work closely with product managers, designers, backend engineers, and other stakeholders to clarify requirements, evaluate trade-offs, and deliver practical solutions.
- Define and improve frontend engineering practices covering code quality, testing, accessibility, observability, CI/CD, and developer experience.
- Drive technical initiatives that improve frontend systems across teams, including shared components, design systems, tooling, and architectural improvements.
- Provide technical leadership through code and architecture reviews, mentoring, knowledge sharing, and helping engineers make sound technical decisions.
Requirements:
- Front-End: TypeScript, React, Next.js, HTML, CSS, Storybook, Nx, GraphQL, Vitest/Jest, i18n
- Others: GitHub, GitHub Actions, Jira, Slack, Teams, Figma. • 8+ years of software engineering experience, with strong experience building and delivering production frontend applications.
- Strong production experience with React and TypeScript, along with a solid understanding of JavaScript, HTML, CSS, and browser fundamentals.
- Proven experience designing frontend architecture for complex applications, including component architecture, state management, API integration, and maintainable, scalable solutions.
- Experience optimizing frontend performance and diagnosing issues related to rendering, loading, and responsiveness.
- Strong understanding of automated testing, CI/CD, and modern frontend engineering practices.
- Demonstrated ability to take ownership of technical decisions and lead frontend development for a team, product, or major project.
- Strong collaboration and stakeholder-management skills: partnering with product managers, designers, and backend engineers, challenging assumptions constructively, balancing technical and business considerations, and aligning stakeholders on solutions and priorities.
- Experience with Next.js and modern web application architectures.
- Experience with design systems and reusable component libraries.
- Experience with frontend observability and production debugging.
- Understanding of accessibility and internationalization (i18n/l10n).
- Experience working with global/distributed engineering teams.
- Japanese language proficiency and experience collaborating with Japan-based stakeholders. Familiarity with Japanese business culture is an advantage.
- Technical Leader: Takes ownership of frontend technical decisions and helps the team make better engineering choices.
- Problem Solver: Comfortable with ambiguity and able to break down complex problems into practical solutions.
- Strong Collaborator: Works effectively with product, design, backend, and other engineering teams.
- Hands-on: Leads by example and remains actively involved in solving technical problems and writing code.
- Multiplier: Helps other engineers grow through mentoring, code reviews, and knowledge sharing.
- Ownership: Proactively identifies problems, drives solutions, and cares about the long-term quality of the product.