Top Front End Developer Jobs in Yokohama

Develop user-facing front-end features for high-traffic desktop, mobile, and hybrid applications. Build fast, scalable web interfaces using JavaScript and React, optimize application performance, manage asynchronous data and state, and create reusable libraries and frameworks that improve development efficiency and code quality.

Join the Futures QA Automation team to design and execute test plans across web, desktop, and mobile. Develop and run automated, performance, security, and mobile-specific tests; set up testing environments (Node.js, Java, Go, Python, local blockchain); diagnose root causes; collaborate with engineers, PMs, designers, and operations to improve quality and processes.

Design and maintain Binance's login, registration, and account-security experiences across web and mobile. Build an in-house AI facial-recognition KYC product, integrate authentication flows (passkeys/FIDO2, MFA), develop Node.js server-side and BFF layers, publish shared SDKs, optimize performance and observability, and drive product improvements using data.

Own end-to-end frontend and backend feature development, integrate AI coding tools into daily workflows, mentor peers, champion full-stack practices, identify cross-team efficiency improvements, and contribute across the product lifecycle from ideation to deployment and iteration.

Fixed-term accelerator for current students/recent grads to build and maintain frontend products using TypeScript, React and NodeJS. Collaborate with Binance Wallet, cross-functional teams, and adopt AI tools while learning modern frontend best practices. Availability 4-5 days/week for at least three months.

Early-career frontend engineer in a fixed-term accelerator. Build and maintain frontend products using TypeScript/React and Node.js, collaborate with product and cross-functional teams, troubleshoot issues, and continuously learn front-end best practices and AI-assisted development techniques. Program targets current students and recent graduates, 3+ month availability preferred.

Lead technical design, development, and performance optimization for the Stablecoin frontend. Improve responsiveness, compatibility, security, and user experience while coordinating with product managers and ensuring frontend stability.

As a Frontend Engineer, you'll develop responsive web applications, collaborate with cross-functional teams, and mentor junior developers while optimizing applications for performance.

As a Senior Frontend Engineer, you will contribute to the frontend architecture, develop dApps, implement state management, and collaborate cross-functionally.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

Design and build responsive React frontends, implement wallet and blockchain interactions, translate complex DeFi/financial data into institutional dashboards, collaborate with smart contract and legal teams, ensure performance, security, and accessibility, and maintain clean, documented code through code reviews.

Develop and maintain Java backend services for blockchain applications; integrate APIs with React/Vue frontends; design and optimize scalable enterprise blockchain solutions; troubleshoot backend issues; collaborate with cross-functional teams and stay current with blockchain best practices.

This posting is a template and contains no concrete responsibilities. Likely this role is a leadership position bridging frontend engineering and business: defining frontend strategy, aligning product and engineering teams, managing stakeholders, and driving product growth at OKX. Specific duties, technologies, and qualifications are not provided in the description.

Lead and own frontend engineering across core crypto products (Trading, Web3, Payments). Drive technical design, delivery, cross-team alignment, AI-infused product decisions, security standards (private key protection, frontend attack prevention), hiring, and operational excellence for high-concurrency, high-availability consumer products.