About Me
Software Engineer
(Front-end)
Senior engineer with over 9 years of experience building intuitive, high-performance web applications — from scalable platforms serving millions to custom tools for niche needs. I combine deep expertise in Next.js, React, and TypeScript with product thinking to deliver measurable results.
9
+
Years of Experience
20
k
Hours of Working
20
+
Projects Done
projects
My Latest Works
A showcase of my work in two categories: Professional — projects built within organizations, and Personal — freelance and self-initiated projects where I owned the process end-to-end.
ruangbelajar
Pre-recorded Edu Platform
ruangkelas
Google Classroom for Indonesia
drill-soal
Tryout Platform with custome setting
Poly Indonesia
Poly Indonesia information & blog page
Spring Talents
CV Builder & HR Platform
Kadoin
Gift Registry Platform
Skills
Skills & Tools
From frontend frameworks to backend integrations, here are the technologies I work with daily — and a few I’ve picked up just to keep my curiosity fed.
Javascript Libraries
Metaframeworks
State Management
Data fetching
Styling
CSS frameworks
Core Strengths
Backend & Database
Workflow & Tools
Experiences
My Professional Experiences
Highlights from my career journey and academic background.
Experiences
Tech Lead (Front-end) - Altatech by Ruangguru
2024 - 2025- Led end-to-end development of an internal PaaS platform for CRM & HRIS, accelerating cross-team workflow development by 60% and reducing internal tooling costs by 40%.
- Architected and delivered a comprehensive HRIS SaaS solution, featuring multi-role dashboards (company, HR admin, employee) and a downloadable mobile app for iOS and Android.
- Spearheaded the rapid development of a new payroll system from concept to launch in under two months. Collaborated closely with HR and product teams to ensure a smooth, error-free release for thousands of employees.
Senior Software Engineer (Front-end) - Ruangguru
2020 - 2024- Migrated 2,000+ pages from HubSpot to self-hosted WordPress with zero downtime, improving CMS flexibility and cost effectiveness. Developed a custom WP theme with reusable UI components, cutting content publishing time by 30% and reducing development cost by 50%.
- Led the launch of an SEO-optimized pre-recorded education platform with 100K+ indexed pages, contributing to 20% user growth across multiple countries (Indonesia, Thailand, Vietnam) with 4 junior contributors
- Architected a tryout platform as a shared service, enabling its adoption by 2+ other product teams and eliminating redundant development work.
- CHIEF of the quarter winner in 2021
Software Engineer (Front-end) - Ruangguru
2017 - 2020- Development of ruangkelas (Google Classroom for Indonesia) using ReasonML, and launched in 4 weeks (0 runtime errors), scaling DAU from 0K → 5K
- Pioneered the adoption of React Native for the RuangKerja app, establishing a new cross-platform development standard that reduced mobile development costs by 50%.
- Solely engineered the payment dashboard using React/Redux, designing a reliable interface that processed 1M+ transactions.
- Led development of Ruangpengajar (teacher app) with 50K+ Android downloads, collaborating with back-end and QA teams
- CHIEF of the year in 2018
Junior Front-end Engineer - Ruangguru
2015 - 2017- Developed a high-traffic exam system (3M+ users) with LINE API integration.
- Built reusable UI components for using AngularJS.
Web Developer - Javasigna Intermedia
2014 - 2015- Built responsive UIs with HTML3, jQuery, and CSS3 for media clients
Education(s)
Bachelor of Education
Graduated at 2018 from Yogyakarta State University
Services
What I Do
I partner with individuals, startups, and businesses to build modern, scalable web solutions, focusing on project-based and collaborative work that challenges me creatively and technically.
01
Web & Mobile Development
From MVPs to production-ready apps, built to your needs
02
Performance Optimization
Reduce load times and improve Core Web Vitals
03
UI/UX Implementation
Transform designs into responsive, accessible, and pixel-perfect interfaces
04
Technical Consulting
Help you make smart tech decisions and avoid costly mistakes
05
Project Collaboration
Bring me in to solve hard problems and push innovative ideas forward
Say Hello
Let's Collaborate
Have a project in mind, or just want to say hello? Drop me a message at: mail@jilly.web.id
Meanwhile, here’s where you can find me wandering online: