docs: update JD of JS

Signed-off-by: Chen Yu <keithwhisper@gmail.com>

JavaScript(Full-time,40h_per_week).md

@@ -1,27 +1,28 @@
 # JavaScript Engineer(Full-Time, 40 Hours/Week)
 
 ### Responsibilities
-- Develop high-quality web applications.
-- Continuously optimize code, applications, and user interfaces within the codebase.
+- Develop high-quality, scalable, and maintainable web applications.
+- Continuously optimize web application performance, code quality, and user interfaces.
 - Create comprehensive documentation, tutorials, and examples for developed applications and tools.
-- Collaborate with the team to design, implement, and maintain scalable, user-friendly web solutions.
+- Collaborate with designers, back-end developers, and other team members to deliver seamless user experiences.
+- Stay updated with emerging web technologies and implement best practices.
 
 ### Minimum Qualifications
 - Bachelor’s degree in Computer Science, Computer Engineering, or equivalent demonstrable skills and experience.
-- Proven experience in front-end development, with strong familiarity with HTML, CSS, and TypeScript, along with a clear understanding of web standards (Accessibility, Security).
+- Proven experience in front-end development, with strong proficiency in **HTML5**, **CSS3**, and **TypeScript**.
+- In-depth knowledge of web standards and best practices, including **accessibility(WCAG)**, **cross-browser compatibility**, **security**, and **performance optimization**
 - Previous work on diverse front-end scopes, including web applications using modern frameworks and libraries.
-- Proficiency in front-end utilities such as scaffolding, CSS preprocessors, and template engines.
-- Hands-on experience with React/Next.js and a strong working knowledge of developing across multiple runtimes like Node.js and modern browsers.
-- Fluent in Mandarin and English for reading and writing.
+- Hands-on experience with **React/Next.js** and a strong working knowledge of developing across multiple runtimes like **Node.js**, **Bun**, **Deno**, and modern browsers.
+- Fluent in **Mandarin** and **English** for reading and writing.
 
 ### General Requirements
-- Strong problem-solving skills and the ability to work both independently and as part of a team.
-- Familiarity with agile development methodologies.
-- Commitment to staying updated with the latest web development trends and technologies.
+- Strong problem-solving skills and a solid understanding of debugging tools (browser developer tools, performance profilers, etc.).
+- Familiarity with **SEO**, **PWA** and **service worker**.
+- Excellent communication skills, with the ability to work independently or collaboratively in a team environment.
 
 ### Preferred Qualifications
-- Japan-based candidates are prioritized.
-- Active participation in open-source communities.
-- Presence on GitHub or a personal blog showcasing relevant work.
+- **Japan-based candidates** are prioritized.
+- Active participation in **open-source projects** or personal contribution on **GitHub**.
+- Understanding of CI/CD pipeline and deployment tools like **GitHub Action**, **Vercel**, **Docker**.
 - Working knowledge of blockchain concepts, including the UTxO model in systems like BTC.
 - Previous experience working with decentralized applications (dApps).