Senior Frontend Engineer
About the role
Startale | Senior Frontend Engineer
Japan; Remote; Singapore
Full Time
Senior Frontend Engineer
About the role
You will be a senior contributor to our frontend product experience, working across our product suite, including our self-custodial wallet interfaces, account abstraction user flows, and a growing set of web and mobile decentralized applications (dApps). As a senior frontend engineer on the team, you will help shape frontend architecture, deliver complex user-facing features, and embed performance, reliability, and usability best practices into every release.
You will work closely with designers, product managers, and engineers to take features from concept to production, while contributing to improving code quality, system design, and team workflows.
Key responsibilities
Frontend architecture & technical contributions
Contribute to the evolution of frontend system design, patterns, and best practices.
Application development
Design, build, and maintain complex, production-grade frontend applications using TypeScript and TanStack Start.
State management & data orchestration
Implement and maintain scalable client-side state using Zustand and TanStack Query to ensure predictable and performant data flows.
Project ownership
Own and deliver end-to-end frontend workstreams, including
Core wallet and account abstraction UX flows
High-throughput, data-rich product interfaces
New web and mobile dApp surfaces
Testing & reliability
Contribute to and maintain Playwright-based end-to-end test suites to improve coverage and release confidence.
Cross-functional collaboration
Partner with Product, Design, and Backend teams to refine requirements and deliver high-quality outcomes.
Qualifications
Required experience
2 ~ 4 years of experience as a frontend engineer
Strong proficiency in TypeScript and modern JavaScript.
Experience with TanStack Start or comparable meta-frameworks (e.g., Next.js, Remix).
Solid expertise in modern React patterns, performance optimization, and frontend application design.
Ability to operate independently in ambiguous, fast-paced environments.
Excellent written and verbal communication skills.
Nice-to-have
Experience leveraging AI-assisted coding tools (Cursor, Copilot, Claude, or similar) to accelerate development.
Background in web3, blockchain, or decentralized application development.
Experience in startup or scale-up environments.
Location and logistics
East Asia preferred (Tokyo, Singapore, HongKong)
Back to All Jobs