05/27/2025 updated
100 % available
Senior Frontend Engineer
Wan Chai District, China
Only remote
Bachelor of Science in Computer ScienceJavaScriptApplication Programming Interfaces (APIs)HTML5Cascading Style Sheets (CSS)Web DevelopmentSearch Engine OptimizationUser Interface DesignScalabilityNode.jsPerformance TuningNext.jsTypeScriptWeb ApplicationsTestingReact.js
Frontend Frameworks
Expertise in React.js, Vue.js, Next.js, and Angular for building responsive and interactive user interfaces.
Performance Optimization
Proficiency in code splitting, lazy loading, and SEO optimization techniques to enhance web application performance.
Full Stack Development
Experience with Node.js, RESTful APIs, and GraphQL for backend integration and full stack development.
UI/UX Design
Skills in creating intuitive and responsive user interfaces using Material UI, Ant Design, and TailwindCSS.
State Management
Proficiency in Redux and Context API for efficient state management in complex applications.
Testing and Deployment
Experience with Jest, Cypress for testing, and Docker, AWS ECS for deployment and scalability.
Web Technologies
Strong foundation in HTML5, CSS3, JavaScript (ES6+), and TypeScript for modern web development.
Expertise in React.js, Vue.js, Next.js, and Angular for building responsive and interactive user interfaces.
Performance Optimization
Proficiency in code splitting, lazy loading, and SEO optimization techniques to enhance web application performance.
Full Stack Development
Experience with Node.js, RESTful APIs, and GraphQL for backend integration and full stack development.
UI/UX Design
Skills in creating intuitive and responsive user interfaces using Material UI, Ant Design, and TailwindCSS.
State Management
Proficiency in Redux and Context API for efficient state management in complex applications.
Testing and Deployment
Experience with Jest, Cypress for testing, and Docker, AWS ECS for deployment and scalability.
Web Technologies
Strong foundation in HTML5, CSS3, JavaScript (ES6+), and TypeScript for modern web development.
Experience
Professional experience5 - 10 years
Freelancer since2018
Languages
EnglishFluent
Project history
•Led the migration of a monolithic React SPA to a Next.js ISR architecture, reducing Time to Interactive by 55% and increasing organic sessions by 30% within three months.
•Architected and delivered a custom Chrome Extension (Manifest V3, background scripts, OAuth) to capture competitive pricing data, surfacing insights via an internal analytics dashboard used by 50+ product managers daily.
•Developed dynamic email templates using MJML and Handlebars for lifecycle marketing campaigns, achieving 28% open and 7% click-through rates across multilingual audiences.
•Introduced Cypress visual regression testing into the CI/CD pipeline, catching 0% of Ul regressions pre-release and reducing post-deploy bug reports by 5%.
•Architected and delivered a custom Chrome Extension (Manifest V3, background scripts, OAuth) to capture competitive pricing data, surfacing insights via an internal analytics dashboard used by 50+ product managers daily.
•Developed dynamic email templates using MJML and Handlebars for lifecycle marketing campaigns, achieving 28% open and 7% click-through rates across multilingual audiences.
•Introduced Cypress visual regression testing into the CI/CD pipeline, catching 0% of Ul regressions pre-release and reducing post-deploy bug reports by 5%.
•Rebuilt Cook'd's high-traffic recipe portal using Nuxt.js and SSR, delivering sub1.5s full page loads and improving Core Web Vitals by 5%.
•Engineered a real-time live chat system with Phoenix Channels and WebSockets, cutting average customer support resolution time from 12h to 2h and boosting NPS by 8 points.
•Introduced Progressive Web App capabilities (service workers, background sync), leading to a 22% increase in repeat sessions and 15% faster mobile first contentful paint.
•Led accessibility enhancements to achieve WCAG 2.1 AA compliance, improving keyboard navigation and semantic markup for all core pages.
•Engineered a real-time live chat system with Phoenix Channels and WebSockets, cutting average customer support resolution time from 12h to 2h and boosting NPS by 8 points.
•Introduced Progressive Web App capabilities (service workers, background sync), leading to a 22% increase in repeat sessions and 15% faster mobile first contentful paint.
•Led accessibility enhancements to achieve WCAG 2.1 AA compliance, improving keyboard navigation and semantic markup for all core pages.
•Built an analytics dashboard using Vue 3 Composition API and D3.js, processing 10M+ events/day for real-time KPI tracking by executive stakeholders.
•Developed a Svelte-based widget library deployed on partner sites, increasing integration revenue by $150K within six months. 2020 – 2021 Los Angeles, US
•Orchestrated Node.js microservices on AWS EKS (Docker, Kubernetes) with autoscaling, ensuring 99.95% uptime during peak traffic events.
•Mentored a team of 5 junior engineers, delivering monthly workshops on modern JS frameworks, elevating code coverage from 60% to 85%.
•Developed a Svelte-based widget library deployed on partner sites, increasing integration revenue by $150K within six months. 2020 – 2021 Los Angeles, US
•Orchestrated Node.js microservices on AWS EKS (Docker, Kubernetes) with autoscaling, ensuring 99.95% uptime during peak traffic events.
•Mentored a team of 5 junior engineers, delivering monthly workshops on modern JS frameworks, elevating code coverage from 60% to 85%.