Willy Agustino Efendi
Willy Agustino Efendi
I am Willy Agustino Efendi, a passionate Senior Frontend Developer based in Indonesia. I have 5+ years of combined experience crafting high-performance, responsive, and visually stunning web and mobile applications using modern frameworks.
I specialize in the React/Next.js ecosystem, state management (Zustand, Redux, React Query), and building polished user interfaces. Beyond frontend engineering, I am a competitive programmer, coding enthusiast, and mentor who loves tackling complex algorithms and delivering clean, maintainable architecture.
A representation of my proficiency in each skill
Formulated and established frontend architecture, project structure, and coding standards for the engineering team.
Visit StandardizationContributed to frontend development, focusing on scalable architecture, responsive UI components using shadcn/ui, and Tailwind CSS.
Visit Wardah SSADeveloped high-performance web applications. Built MetraInsights dashboard utilizing shadcn/ui and optimized state management.
Handled multiple long-term and parallel client projects across banking, insurance, government, education, CMS, e-commerce, and halal certification domains.
Served as Frontend Lead. Designed core Next.js architecture, established best practices, and customized Material UI component library.
Internal RevampDeveloped frontend features for the national halal certification platform using Next.js, SCSS/SASS, and Tailwind CSS. Resolved SonarQube issues.
Visit SiHalalDeveloped responsive features, reusable modules, and implemented SEO best practices using Next.js.
Lead Frontend Developer. Mentored junior developers, conducted code reviews, and built a Gemini API integrated AI chat feature.
Visit JDIHBuilt school management dashboard using Next.js and wrote extensive unit tests using Jest and React Testing Library.
Link ExpiredMaintained reusable invoicing components using Next.js, Tailwind CSS, Redux, and managed Change Requests (CR).
Visit Otsuka PortalContributed to enterprise banking interfaces, layouts using Bootstrap & SCSS, and integrated secure Keycloak authentication.
Link ExpiredDeveloped frontend components, responsive layouts using Next.js, Tailwind CSS, and managed state using Redux.
Developed core modules and dashboards using React.js. Managed global & server state with Redux and React Query.
Visit HRISSome stats related to my experience and projects.
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© 2019 - Willy Agustino Efendi. All rights reserved.
