Leong Kah Seng Edward
Frontend Developer
Kajang, Selangor,10
Summary
Dynamic Front End Developer with a proven track record at VVinners Technology Sdn Bhd, specializing in creating high-performance, SEO-optimized websites. Expert in HTML, CSS, and JavaScript, with strong problem-solving skills. Successfully enhanced user experience through advanced UI animations and responsive design, ensuring optimal web performance across devices.
Overview
7
7
years of professional experience
3
3
Languages
4
4
years of post-secondary education
Work History
Front End Developer
VVinners Technology Sdn Bhd
01.2019 - Current
- Led the development of interactive and animation-driven websites with a strong focus on SEO best practices and web performance standards.
- Utilized HTML, CSS, and JavaScript to create visually appealing and responsive web pages that met client requirements.
- Coded using HTML, CSS, and JavaScript to develop features for both mobile and desktop platforms.
- Implemented advanced UI animations and scroll-based interactions while ensuring optimal Core Web Vitals (LCP, CLS, INP) performance.
- Collaborated closely with UI/UX designers to translate complex visual concepts into performant, production-ready animated interfaces.
- Optimized front-end architecture, asset loading, and rendering pipelines to improve Lighthouse and web.dev performance scores.
- Applied SEO-friendly markup, semantic HTML, and accessibility considerations to improve search engine visibility and content structure.
- Leveraged AI-assisted workflows to accelerate UI/UX implementation, refine layout accuracy, and streamline design-to-code processes.
- Authored and maintained technical documentation such as agent.md to standardize AI-assisted development and performance-focused workflows.
- Designed scalable, reusable front-end components that balanced animation quality, performance, and long-term maintainability.
- Worked with back-end developers to integrate APIs while ensuring SEO-safe rendering and efficient data delivery.
- Utilized Git-based version control and code review practices to maintain code quality and collaborative standards.
- Enhanced user experience by optimizing web applications for maximum speed and scalability.
- Identified and resolved performance bottlenecks related to animations, rendering, and resource loading across browsers and devices.
Education
High School Diploma -
New Era University College
Selangor 01.2014 - 09.2017
Skills
HTML, PHP, CSS, Javascript
Front end web development
Reactjs experience
Responsive design
Code debugging
API integration
Problem-solving
SASS and LESS skills
UI design principles
Bug resolution
Web technologies: angularjs, jQuery, bootstrap
Bootstrap framework
Git proficiency
Front-end frameworks
Reactjs framework
Web performance tuning
CMS platforms
SEO principles
Performance optimization
Timeline
Front End Developer
VVinners Technology Sdn Bhd
01.2019 - Current
High School Diploma -
New Era University College
01.2014 - 09.2017