Sistem Informasi Gereja
CodeIgniter 4 · MySQL · REST
Parish CMS and admin dashboard with a 10+ table schema: faster data retrieval (25%) and content updates (40%), used daily by staff across departments.
View project →Juanda
I build fast, dependable backends in Go and PHP. REST APIs people actually enjoy consuming, backed by PostgreSQL and MySQL, plus the details everyone else skips.
Open to backend roles
I'm a builder who cares about the quiet details.
Hello, I'm Juanda, a backend developer with over a year of production experience in Go and CodeIgniter 4. I like my APIs honest, my schemas tidy, and my systems dependable: software that just works, predictably, under real use.
My first real backend was a parish information system: I designed a MySQL schema with 10+ relational tables, built the CMS and admin dashboard on CodeIgniter 4, and cut content updates by 40% and data retrieval by 25% for staff across departments. I'm equally comfortable shaping React and Tailwind frontends, and I've shipped an API-backed Android app that folds a TensorFlow model into a real product. I've also run Study Jam workshops as a GDSC Curriculum Officer, so I can explain complex things to real people.
What I'm after is an entry-level backend role where I can grow my Go with senior engineers, building things that matter, doing them properly, and staying honest about what they are.
A short trail through the years.
- Jul – Aug 2024
Backend Developer · Internship
Paroki Tanjung Priok
Designed a MySQL database with 10+ relational tables, built a CodeIgniter 4 CMS and interactive admin dashboard, and cut data retrieval by 25% and content updates by 40%.
- Jan – Jun 2024
Flutter Developer · Team Lead
TechCare (Hackfest)
Led a 4-person team building TechCare, a device repair-service app, and shipped 100% of planned features using Agile daily stand-ups to keep everyone aligned.
- Feb 2024
Frontend Engineer · Freelance
Megatama Global International
Built a responsive company-profile website with ReactJS and Tailwind CSS, delivered in under 48 hours.
- Aug – Dec 2023
Machine Learning Cohort
Bangkit Academy
Built a TensorFlow model that identifies food nutrients at 85% accuracy and a Kotlin app with 20% lower navigation latency, launched Fitforma with a 5-person team.
- Sep 2021 – Feb 2025
Information Technology Student
Institute of Business and Informatics Kwik Kian Gie
Graduated in Information Technology with a GPA of 3.81, the foundation for the backend work I do today.
Things I've built, shipped, and stand behind.
TechCare
Flutter · Agile
A device repair-service app I led a 4-person team to build during Hackfest, shipping 100% of planned features with Agile daily stand-ups.
Fitforma
TensorFlow · Kotlin · Android
A nutrient-tracking app from Bangkit Academy: an ML model at 85% accuracy and a low-latency Kotlin app, built with a 5-person team.
Company Profile Website
ReactJS · Tailwind CSS
A responsive corporate profile site, delivered as a freelance project for Megatama Global International in under 48 hours.
A few representative pieces. More details and code are a conversation away.
Have a system worth building?
If you're after a backend that's fast, dependable, and a pleasure to maintain, I'd love to hear about it. Tell me what you're building, and I'll tell you honestly how I can help.
Drop me a line