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cent-yap/README.md

It's Vincent Yap.

Design Engineer × QA Engineer

Portfolio LinkedIn Dev.to Email


The Architect of Experience & Assurance

I operate at the nexus of design innovation, robust engineering, and meticulous quality assurance. My expertise lies in translating visionary design into flawless, production-ready applications. Since 2023, I've been dedicated to crafting digital products that not only captivate users with fluid experiences and exceptional accessibility but also stand resilient through rigorous testing and maintainable architecture.

My approach transcends aesthetics; I engineer for integrity and impact. Whether optimizing frontend performance to consistently achieve 90+ PageSpeed scores in Next.js, implementing cutting-edge CSS systems with native nesting and cascade layers, or orchestrating high-fidelity interactive motion with GSAP, my focus is on building digital products where visual artistry and engineering precision converge with unwavering quality. I ensure that every pixel and every line of code contributes to a superior, defect-free user journey.


Technical Arsenal

Languages

Frontend Ecosystem

Design & Creative

Backend & Infrastructure

AI Tools


Core Competencies

Area Senior Focus
Design Systems Architecting Tokens-to-Code pipelines & Governance Models
Frontend Architecture Leading migrations to modern, scalable stacks (Next.js, Micro-frontends )
Modern CSS Implementing advanced techniques (Cascade Layers, Container Queries)
Performance Optimization Driving Core Web Vitals improvements for SEO & Conversion
Accessibility (A11y) Establishing WCAG Compliance & Inclusive Design Standards
Motion Design Orchestrating high-fidelity interactive experiences (GSAP, Framer Motion)
Quality Assurance (QA) Strategizing full-stack testing layers (Unit, Integration, E2E, Visual)
Developer Experience (DX) Cultivating maintainable codebases & efficient workflows
Leadership & Mentorship Mentoring teams & defining Engineering Excellence standards

Featured Projects

UCV Lawyers Website

React • TypeScript • Vite • Scoped CSS • PHPMailer

A legal consultation platform engineered to simplify client inquiries while maintaining strict accessibility and usability standards.

Key Outcomes

  • Architected a fully WCAG-compliant booking system, improving consultation workflow and increasing inquiry completion rates by 50%+.
  • Established a scalable CSS architecture utilizing precise variable naming conventions (e.g., --primary-base) for improved team maintainability.
  • Implemented strict CSS scoping and responsive-first development for a seamless cross-device experience.

🔗 Live Demo: http://ucvlaw.rf.gd


Marci Metzger Homes

Next.js • TypeScript • GSAP • Modern CSS

A premium, conversion-focused real-estate landing experience emphasizing high-end interaction quality and rapid rendering.

Key Outcomes

  • Architected complex, high-performance entrance effects and scroll-driven animations utilizing GSAP ScrollTrigger.
  • Leveraged modern CSS capabilities, including Native Nesting, Cascade Layers (@layer ), and Relative Color Syntax (oklch(from...)) for dynamic palette generation.
  • Optimized asset delivery pipeline using AVIF/WebP image formats and Turbopack to consistently hit 90+ PageSpeed scores.

🔗 Live Demo: https://metzger-homes.netlify.app


Engineering Philosophy

Systems Over Screens

A single page can be redesigned. A robust system scales across products.

Performance Is Part of Design

Fast experiences improve usability, engagement, and business outcomes.

Accessibility Is Non-Negotiable

Inclusive interfaces should be built into the foundation, not added later.

Maintainability Creates Longevity

Clean architecture enables teams to move faster over time.

Quality is Designed, Not Just Tested

Proactive quality integration from conception to deployment ensures superior user experiences.


Current Areas of Exploration

  • Design Tokens at Scale
  • Micro-Frontend Architectures
  • WebGL Interfaces
  • Advanced Frontend Design Systems
  • Automated Testing Frameworks & Strategies

GitHub Activity

GitHub Stats
Activity Graph
Contribution Snake

Professional Ethos

My mission is to architect digital ecosystems where engineering precision, design excellence, and proactive quality assurance drive measurable business growth. I specialize in building the infrastructure—from scalable design systems to automated testing frameworks—that enables teams to ship high-fidelity products with absolute confidence.

"Great products emerge when thoughtful design meets disciplined engineering and rigorous quality assurance."

→ Vincent Yap


Let's Connect

Actively building scalable web experiences and always keen to discuss frontend architecture, modern CSS, performance optimization, or advanced QA strategies.

Drop me an email or connect with me on LinkedIn

Popular repositories Loading

  1. CONTACT-FORM CONTACT-FORM Public

    A clean, minimal contact form with friendly copy and real-time input validation. Built to feel simple and human.

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  2. AUTHENTICATION-FORM AUTHENTICATION-FORM Public

    A clean, minimal login UI featuring a welcoming interface with email and password fields, password visibility hints, "Remember me" toggle, forgot password flow, and a new user sign-up link. Built w…

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  3. cent-yap cent-yap Public