Chin Chen / 陳芹嬅

Platform Team Lead & Staff Engineer at AmazingTalker

Global online tutoring platform serving 1M+ users across 190 countries

• Led frontend platform modernization transitioning to Nx-based monorepo with micro-frontend architecture reducing release incidents by 40% and enabling independent team deployments
• Built high-performance Node.js microservice with relational database design (PostgreSQL), memory caching (Redis), and S3 storage—reducing latency by 300-500ms per request and eliminating waterfall chains via precomputed fallback architecture
• Conducted 60+ technical sessions on clean architecture, performance optimization, component design, and modern frontend patterns—reducing onboarding time by 30%
• Implemented comprehensive build optimization strategies cutting average build time by 50% through incremental builds, caching, and parallel processing
• Established performance budgets and monitoring achieving consistent sub-2s page loads and optimal Core Web Vitals scores across all products
• Designed and maintained shared frontend tooling including component libraries, utility packages, and development tools enabling 30% faster feature delivery

• Led Frontend Platform Modernization & Architecture

  • Defined and executed frontend platform strategy transitioning to Nx-based monorepo with micro-frontend architecture—reducing release incidents by 40% and enabling independent team deployments
  • Made critical frontend architecture decisions balancing modern frameworks (Vue 3, React 18) with legacy system constraints, improving developer experience while maintaining stability
  • Established frontend technical standards, code review guidelines, and best practices documentation adopted across 5+ product teams

• Architected and developed Precomputation Service

  • Designed and built Node.js microservice with memory-caching and S3 storage, reducing image resolution latency by 300-500ms through precomputed fallback paths
  • Implemented relational database schema, RESTful APIs, and provider-consumer architecture with anti-corruption layer for cross-service integration
  • Deployed to Kubernetes with Helm/Istio, configured cross-namespace routing, SQS event processing, and WAF throttling solutions

• Scaled Frontend Engineering Team & Culture

  • Led platform engineering team of frontend specialists, conducting 60+ technical sessions on clean architecture, performance optimization, component design, and modern frontend patterns
  • Mentored frontend engineers through 1-1s focused on career growth, technical skill development, and leadership opportunities—reducing onboarding time by 30%
  • Collaborated closely with design team to establish design system and component library ensuring consistency across products

• Optimized Frontend Performance & Developer Experience

  • Implemented comprehensive build optimization strategies cutting average build time by 50% through incremental builds, caching, and parallel processing
  • Established performance budgets and monitoring achieving consistent sub-2s page loads and optimal Core Web Vitals scores across all products
  • Expanded CDN coverage to 100% of frontend assets and implemented edge caching strategies improving global performance

• Built Scalable Frontend Infrastructure

  • Designed and maintained shared frontend tooling including component libraries, utility packages, and development tools enabling 30% faster feature delivery
  • Implemented automated testing strategies (unit, integration, E2E) achieving 80% code coverage and catching bugs before production
  • Established frontend observability with error tracking (Sentry), performance monitoring (New Relic), and user analytics integration

Key Achievements

• Led 3 CSS framework consolidations reducing bundle size by 65%
• Scaled frontend teams from 5 to 15+ engineers, reducing release incidents by 40%
• Cut build times by 50% through Nx monorepo architecture
• Architected Cache-First Architecture optimizing response times by 300-500ms

Sr. Front-End Engineer at AmazingTalker

• Led platform-wide CSS framework migration across 13+ developers—reducing CSS bundle size by 40% and improving maintainability
• Introduced data-informed UI/UX experimentation framework with analytics team—A/B testing library, feature flags, and conversion tracking
• Designed and implemented multi-domain frontend architecture with intelligent routing, cross-domain session management, and shared state synchronization—boosting SEO-driven organic traffic by 40%
• Mentored junior frontend engineers on modern JavaScript, React patterns, Vue composition API, and performance optimization techniques

• CSS Framework Migration & Design System Leadership

  • Orchestrated enterprise-wide CSS framework consolidation merging 3 disparate systems (Bootstrap 4, Material-UI, custom CSS-in-JS) into unified Tailwind CSS + UnoCSS architecture
  • Partnered with design team to implement comprehensive design guidelines with design tokens, establishing Atomic CSS principles across 15+ product teams
  • Reduced CSS bundle size by 65% through framework consolidation, tree-shaking, and PurgeCSS optimization

• Architected Multi-Domain Frontend Platform

  • Designed and implemented multi-domain frontend architecture with intelligent routing, cross-domain session management, and shared state synchronization—boosting SEO-driven organic traffic by 40%
  • Built custom frontend framework layer abstracting domain-specific logic enabling code reuse across 5+ country-specific sites
  • Implemented comprehensive SEO optimization strategies including SSR, meta tag management, and structured data markup

• Championed Frontend Best Practices

  • Designed RESTful API integration patterns, error handling strategies, and loading state management adopted across frontend teams
  • Partnered with designers on component API design ensuring developer-friendly interfaces and consistent user experiences
  • Mentored junior frontend engineers on modern JavaScript, React patterns, Vue composition API, and performance optimization techniques

Key Achievements

• Led Cross-Functional Collaboration
• Mentored Engineers and Elevated Technical Standards