求人を保存 検索に戻る 職務内容 求人情報 類似した求人Own large-scale UI architecture for millions of usersDrive performance & UX in high-traffic e-commerce systems企業情報Our client is a leading, large-scale internet services company operating one of Japan's largest e-commerce platforms. Serving tens of millions of consumers, the organization continuously innovates to deliver best-in-class UI/UX while maintaining stability during massive traffic events and peak campaigns.職務内容Lead front-end architecture design from scratch (component design, state management, design systems, performanceoptimization,CDN)Develop, test, and deliver new user-facing features for a large-scale e-commerce platformTranslate UI/UX wireframes into high-quality, scalable, and maintainable codeCollaborate with designers, backend engineers, and stakeholders to bridge business, design, and technical requirementsBuild reusable components and front-end libraries for long-term scalabilityOptimize front-end performance, especially under high-load conditionsConduct system improvements including refactoring, architecture enhancements, and technology adoptionMonitor production systems, troubleshoot issues, and lead incident resolutionEnsure code quality through reviews, testing (unit, integration, E2E), and best practicesDrive technical decisions and promote impactful solutions across teams理想の人材5+ years of front-end development experience using HTML, CSS, and JavaScript5+ years of experience with React, Redux, and TypeScriptProven ability to design front-end architecture from scratch (component-based design, state management, UX, performance optimization)Strong experience with testing frameworks (e.g., Jest, Cypress, Playwright, WDIO) including unit, integration, and E2E testingExperience with REST APIs, JSON, and CORSSolid understanding of asynchronous and parallel processing (e.g., Promise, WebWorkers, WebSockets)Experience with system monitoring, troubleshooting, and production supportFamiliarity with Linux environments and DevOps practices (Git, CI/CD tools such as Jenkins)Strong documentation and communication skills with the ability to explain complex concepts clearlyProactive mindset with the ability to identify issues, propose solutions, and drive executionInterest in leveraging AI tools (e.g., modern coding assistants, automation tools) to improve development processesBusiness-level English proficiencyPreferred:Experience as a Tech Lead in high-traffic web systemsExperience managing medium-to-large scale projectsAgile development experienceKnowledge of linting tools and public cloud platforms (e.g., GCP)条件・待遇Opportunity to lead front-end architecture for a high-impact, large-scale platformExposure to cutting-edge technologies and performance challenges at scaleCollaborative, innovation-driven engineering environmentコンタクトSerena Wu求人番号JN-062026-7040075電話+81 3 6627 6137求人情報分野IT職種プログラミング＆開発業界IT・通信勤務地東京23区雇用形態派遣社員担当コンサルタントSerena Wu担当コンサルタントの電話番号+81 3 6627 6137求人番号JN-062026-7040075企業タイプ外資系企業
