About Me

Jonathan Gobiel
Full Stack Engineer
I'm a passionate Full Stack Engineer with over 5 years of experience building modern, scalable web applications. While my core expertise lies in frontend development — React, Vue 3, TypeScript — I also have solid backend experience with Node.js and PHP to deliver robust, end-to-end solutions.
My journey started in college and I've since worked across industries delivering high-quality products. I love turning complex requirements into clean, performant, and delightful user experiences.
Name
Jonathan Gobiel
jonathangobiel13@gmail.com
Location
Jakarta, Indonesia
Availability
Open for freelance
Work Experience
Software Engineer Web Platform
- Reduced page bundle size by 18% by resolving an incorrect code-splitting boundary that caused unrelated page code to be bundled together.
- Achieved a 79% bundle size reduction by lazy-loading heavy animation components, significantly improving initial page load performance.
- Improved Core Web Vitals by preloading critical scripts to reduce Total Blocking Time (TBT) and adopting WebP images to accelerate Largest Contentful Paint (LCP).
- Enhanced developer experience by building two internal CLI tools: a Route Inspector for tracing URL-to-component ownership, and a module scaffolding generator that standardises new feature structure across the codebase.
- Improved team productivity by automating local SSL certificate setup, eliminating a recurring blocker that prevented Android emulator testing.
Software Engineer Web Platform
- Implemented automation reporting prior to release, ensuring seamless quality control.
- Introduced a bundle size checker in PRs before merges, optimizing performance.
- Led the smooth migration of the Tokopedia web platform into the TikTok ecosystem.
- Achieved a 90% reduction in build time during development, enhancing DX.
- Standardized i18n across the Tokopedia web platform ecosystem.
- Migrated Tokopedia Web Services into the TikTok ecosystem.
Research & Development Team
- Led enhancements to existing web & mobile apps, focusing on performance optimization.
- Redesigned the Hiring Web App — migrated from jQuery to Next.js architecture.
- Revamped the Teaching Assistant App — transitioned from ASP.NET to Next.js.
- Mentored teaching assistants during the R&D phase.
Teaching Assistant
- Progressive project tests for Game, Analysis, Web, Network, Mobile assistants.
- Practicum teaching: Algorithm, Database, Multimedia, Security, Web.
- Answer marking and student guidance.
My Projects
Recent work across different industries — from real-time communication to e-commerce and government platforms.
Aerium
Premium residences landing page with elegant UI and smooth animations.
Crowde
A system that manages schedules and survey locations with real-time data.
Fita
A health app with comprehensive features and programs to start living a healthy life.
Cubes
Accounting management training system used by enterprises across Indonesia.
Inaskills
Competition management system used by Indonesia's Ministry of Manpower.
Kleveru
Beauty industry platform connecting service providers and customers.
Sense
Hospitality management system for laundry operations.
Brc Depo
E-commerce application for selling household equipment.
CariEV
Discover public & private EV charging stations near you with one-tap navigation redirection — no more juggling multiple provider apps.
- Discover public & private EV charging stations
- Direct navigation redirection to any station
- Find nearby chargers at a glance
- Replaces multiple provider apps in one place
KirimFile
Browser-based peer-to-peer file sharing — works on Android, iOS, and desktop with zero installs. Just open and share.
- Serverless P2P transfer via WebRTC
- Works on any device with a browser
- No installs or sign-ups required
- Cross-platform: Android, iOS, PC






