Top Front End Developer Jobs in Nagoya

Design and build interfaces for HUD’s AI agent training, evaluation, and marketplace products. Translate complex reinforcement learning workflows, agent runs, evaluation results, reward signals, and quality feedback into clear, actionable experiences. Collaborate with users, researchers, and engineers to ship polished products, conduct user discovery, improve usability, and develop reusable interaction patterns.

Develop and operate web products including PayPay Securities mini-applications, PC trading sites, and internal business tools. Collaborate with product managers and designers to improve investment experiences, prototype new features, and implement redesigns. Improve unit testing, architecture, frontend performance, and CI/CD processes while contributing to a new engineering organization.

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.

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.