A leading global web3 solutions provider on a mission to build the next civilization by bringing the world onchain.
Senior Frontend Engineer
Location
Japan
Posted
142 days ago
Salary
0
Seniority
Senior
Job Description
Senior Frontend Engineer
Startale Group
• Contribute to the evolution of frontend system design, patterns, and best practices. • Design, build, and maintain complex, production-grade frontend applications using TypeScript and TanStack Start. • Implement and maintain scalable client-side state using Zustand and TanStack Query to ensure predictable and performant data flows. • Own and deliver end-to-end frontend workstreams, including core wallet and account abstraction UX flows, high-throughput, data-rich product interfaces, and new web and mobile dApp surfaces. • Contribute to and maintain Playwright-based end-to-end test suites to improve coverage and release confidence. • Partner with Product, Design, and Backend teams to refine requirements and deliver high-quality outcomes.
Job Requirements
- 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.
- 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.
Related Guides
Related Job Pages
More Frontend Engineer Jobs
Senior Front-End Developer
Insider OneThe #1 platform that brings everything marketing and customer engagement teams need in one place, to become unstoppable.
• participates in the entire project life cycle, from product development and release to maintenance, • researches, evaluates, and shares existing and upcoming new technologies with the team, • provides communication with Product Managers, Designers, teammates, and co-working teams in order to write efficient code, • produces new ideas to develop new features/setups or to improve existing applications and processes, and develops POC applications when necessary to demonstrate ideas, • works closely with Back-End Developers to communicate with APIs, • provides control of error channels to keep product quality at the highest level, • writes code in a reusable, manageable, scalable way, • is responsible for the maintenance and performance of new features in the front end, • aims to keep code quality and information sharing at the highest level with daily code reviews.
Senior Front-end Developer – Native JS, Vue.js
Insider OneThe #1 platform that brings everything marketing and customer engagement teams need in one place, to become unstoppable.
• Participates in the entire project life cycle, from product development and release to maintenance. • Researches, evaluates, and shares existing and upcoming new technologies with the team. • Develops and maintains high-quality, scalable JavaScript/TypeScript applications. • Collaborates with cross-functional teams to design, develop, and implement web-based solutions. • Works closely with Back-End Developers to communicate with APIs. • Provides control of error channels to keep product quality at the highest level. • Writes and maintains unit tests to ensure code quality and stability. • Aims to keep code quality and information sharing at the highest level with daily code reviews.
Front-end Developer – Native JS, Vue.js
Insider OneThe #1 platform that brings everything marketing and customer engagement teams need in one place, to become unstoppable.
• Participates in the entire project life cycle, from product development and release to maintenance. • Researches, evaluates, and shares existing and upcoming new technologies with the team. • Develops and maintains high-quality, scalable JavaScript/TypeScript applications. • Collaborates with cross-functional teams to design, develop, and implement web-based solutions. • Works closely with Back-End Developers to communicate with APIs. • Provides control of error channels to keep product quality at the highest level. • Writes and maintains unit tests to ensure code quality and stability. • Aims to keep the code quality and information sharing at the highest level with daily code reviews.
• Lead the development of rich, interactive web applications built with React • Design, build, and maintain complex front-end applications • Create accessible, responsive UI components using Chakra UI • Implement interactive map-based experiences using Mapbox GL JS • Build interactive data visualizations and dashboards using Plotly and ApexCharts • Optimize performance for large datasets, maps, and real-time updates • Collaborate with product managers, designers, and backend engineers to define and deliver features • Establish and enforce front-end best practices (architecture, testing, accessibility, performance) • Lead code reviews and mentor other engineers • Contribute to technical planning and architectural decisions • Ensure cross-browser compatibility and responsive behavior


