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Giovanni User

@giovanniuser

Frontend Technical Lead at Tokopedia (ByteDance) who architected a live-update Homepage platform and cut its JavaScript bundle size by 83.7%.

Indonesia

Message

At Tokopedia (ByteDance), I architected the Homepage Lynx platform so four product teams could ship server-driven UI and logic updates without native app releases. This eliminated the app-store adoption wait and cut time-to-experiment from four weeks to two.

I also reduced the Homepage JavaScript bundle size by 83.7% and improved Discovery Meaningful Render by 72%. My work included frontend platform architecture, BFF design, Apollo GraphQL integration, and release strategy across Web, iOS, and Android.

Earlier at Tokopedia, I re-architected the Desktop Homepage, built a custom Masonry product grid without third-party libraries, and optimized infinite scrolling with React virtualization. I began my career as a Frontend & .NET Developer at PT Mitra Kreasindo, Wirecard.

Experience

Work history, roles, and key accomplishments

Frontend Technical Owner

Tokopedia (ByteDance)

Feb 2025 - Aug 2026 (1 year 6 months)

Served as cross-platform Tech Owner for an 8-engineer team, driving technical planning, solution design, and release strategy. Architected the Homepage Lynx platform, reducing time-to-experiment and improving performance metrics.

React TypeScript Lynx Apollo GraphQL REST APIs Backend For Frontend (BFF)Protobuf IDL Webpack Jest React Testing Library CI CD

Technical Lead – Frontend

Tokopedia (ByteDance)

Jan 2024 - Jan 2025 (1 year)

Led frontend architecture and technical direction for Homepage and Discovery, partnering with cross-functional teams. Defined roadmap for migrating Discovery to Lynx and established reusable frontend patterns.

React TypeScript Lynx Frontend Architecture Cross Platform Development Design Systems Testing Standards

Senior Frontend Engineer

Tokopedia (ByteDance)

Aug 2021 - Jan 2024 (2 years 5 months)

Expanded ownership from Homepage to Discovery, leading engineering delivery and cross-functional alignment. Served as Technical Lead for Tokopedia TokoNow Mobile Web, owning frontend architecture and execution.

React TypeScript Frontend Architecture Cross functional Leadership Recommendation Systems Navigation Redesign Campaign Platform Coupon Experiences Dynamic Content Management

Frontend Engineer

Tokopedia (ByteDance)

Apr 2019 - Aug 2021 (2 years 4 months)

Re-architected Tokopedia Desktop Homepage from a legacy stack, improving maintainability, scalability, SEO, and Core Web Vitals. Designed custom Masonry product grid and optimized infinite scrolling with React virtualization.

React TypeScript Web Performance SEO Core Web Vitals React Virtualization Masonry Infinite Scroll