Full-Stack Engineer Front-End

Mimori Okamoto

Senior Full-stack Engineer

*************@*****.*** Kyoto, Japan okamoto-portfolio.vercel.app github.com/purity111 +817********* linkedin.com/mimori-okamoto SUMMARY

Experienced Senior React Developer with 7+ years of expertise in building performant web applications using React, TypeScript, and web sockets. Proven track record of leading the development of enterprise-level web apps, collaborating with cross-functional teams, and mentoring junior developers. Skilled in Agile methodologies, TDD, and front-end architecture, with a strong focus on delivering high-quality, scalable, and user-friendly solutions. Seeking a fully remote role to contribute to innovative projects and drive technological excellence. SKILLS

● Front-End Development: Svelte, SvelteKit, React, Vue.js, JavaScript (ES6+), TypeScript, HTML5, CSS3, Next.js, Redux, Tailwind CSS, WebSockets

● Back-End Development: Node.js, Express.js, RESTful API development

● Testing & Tolls: Jest, TDD, BDD, Jira, Confluence, Git, Agile, CI/CD

● Data Visualization: D3.js, Chart.js, SVG, Canvas API

● Databases: MySQL, SQL, MongoDB, Firebase

● Cloud & DevOps: AWS, Docker, Kubernetes, GitHub Actions, CircleCI EXPERIENCE

Full-stack Engineer March, 2023 - November, 2024

Think To Share Maiami, United States

● Led the development of real-time web applications using React, TypeScript, and WebSockets, achieving 99.9% uptime for over 10,000 users.

● Designed and implemented front-end architecture for scalable and performant web apps, reducing load times by 25% and improving user engagement by 30%.

● Collaborated with cross-functional teams to deliver 15+ new features, enhancing functionality and user satisfaction.

● Mentored 3 junior developers in React and Agile practices, improving team productivity and code quality.

● Wrote unit and integration tests using Jest, ensuring high-quality, maintainable code. Lead Engineer May, 2020 - Febrary, 2023

eSolutions Webbers Cyberjaya, Malaysia

● Architected and developed a real-time e-Talent Management System using React, WebSockets, and Firebase, streamlining access to 600+ employee profiles.

● Integrated real-time communication features using WebRTC and Socket.io, improving system responsiveness by 40%.

● Led a team of 5 developers, providing mentorship and guidance on React and TypeScript best practices.

● Implemented TDD practices, reducing bug rates by 20% and improving system reliability.

● Collaborated with product managers to break down complex requirements into actionable tasks, ensuring timely delivery of features. Front End Developer November, 2017 - March, 2020

Creative Heroes Inc Osaka, Japan

● Revamped front-end systems using React, TypeScript, and Next.js, achieving a 25% reduction in load times and increasing user engagement by 20%.

● Developed real-time property listing updates for a database of 50,000+ listings, improving search and browsing capabilities.

● Collaborated with backend teams to ensure seamless integration, achieving a 30% increase in user engagement.

● Wrote unit tests using Jest, ensuring high code quality and maintainability. EDUCATION

Kyoto Institute of Technology

Bachelor of Information System - Kyoto, Japan 2014 – 2017 CERTIFICATIONS

● Frontend Developer(React)

● Javascript Expert

● Python Expert

● Angular Professional

● Angular Proficient

● Full Stack Developer

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