Cross-platform Flutter
- Flutter & Dart
- Android, iOS, Windows, macOS, web
- Production maintenance
MuhammadIhsanRahman
Flutter Developer
App Programmer at PT Penerbit Erlangga—2+ years building and maintaining Flutter apps in production, from mobile and desktop to web.
Bogor, Indonesia2+ years experience
10Mobile apps
10Educational games
1 million+Downloads
85+Field visits
About01
Useful products. Clean foundations. Room to grow.
I'm a Flutter developer focused on building high-performing applications with scalable architecture and a clear, intuitive experience.
Over the past two years, I have developed and maintained Flutter products in a professional environment—from shipping features and integrating REST APIs and Firebase to deploying across Android, iOS, Windows, macOS, and web.
I care about the details behind the interface: structured code, maintainable state, dependable integrations, and products that remain easy to improve as they evolve.
How I work
A short loop from brief to release—then back into the product with what users tell me in the field.
- 01
Brief
Translate product and design needs into a focused Flutter build.
- 02
Implement
Ship screens with Provider, go_router, and a Clean Architecture layout.
- 03
Integrate
Connect REST APIs with Dio, plus Firebase Authentication and Firestore.
- 04
Ship
Release on Google Play, archive iOS builds, and host Flutter Web where needed.
- 05
Learn in the field
Bring school-visit feedback from teachers and students back into the code.
Technology stack
What I use to maintain production apps across mobile, desktop, and web.
Services & data
- REST API with Dio
- Firebase Authentication
- Cloud Firestore
Architecture
- Provider
- Clean Architecture
- go_router
Shipping
- Google Play releases
- iOS build & archive
- Flutter Web hosting
StudioSangga
Websites and apps, through Sangga.
I run Sangga Software House for websites, company profiles, campaign pages, and Flutter apps for iOS and Android. Work starts after a written proposal.
Visit sangga.idSelected work02
Products built for learning, work, and everyday life.
A selection of cross-platform applications and independent work that reflects how I approach product quality, reliability, and user experience.
1 Million+combined downloads on E-Book Erlangga and E-Library Erlangga, products I help maintain
01 / 10
E-Book Erlangga
Official Erlangga app for digital textbooks—browse the catalog, read with a focused layout, and keep access to purchased titles for students and teachers.
500K+ downloads
My contribution
MaintenanceI help maintain this production app—new features, UI/UX, performance, security, and Firebase/API work across mobile and desktop—alongside school visits and customer feedback.
Available on
3D smartphone showing E-Book Erlangga official preview
E-Library Erlangga
School digital library for Erlangga books—find titles, manage loans, and read in one place for students, teachers, and librarians.
500K+ downloads
View project detailMy contribution
MaintenanceI maintain the production Flutter app—integrations, stability, debugging, and cross-platform releases—alongside school visits and customer feedback.
Available on
3D smartphone showing E-Library Erlangga official preview
Beelang
Interactive English for young learners—stories, games, and guided activities that build vocabulary, listening, and confidence step by step.
My contribution
MaintenanceI maintain Beelang on Android and iOS—REST API and Firebase, migrating the Android build from JDK 17 to JDK 25 and upgrading dependencies—plus school visits and customer feedback.
Available on
3D smartphone showing Beelang official preview
Scanny Erlangga
Scan Erlangga book pages with the camera, match them to the right digital content, and keep core scanning usable even when you are offline.
My contribution
BuiltI built the Android app—camera scanning, on-device page recognition, offline-ready flows, modular Flutter architecture, and the Google Play release.
Available on
3D smartphone showing Scanny Erlangga interface implementation video
Intelecto Parent
Intelecto Parent is the parent-facing LMS in the Intelecto ecosystem, helping families monitor and support a child's learning in a clear, structured way. Parents can track academic progress, access learning information, and stay on top of materials and school activities.
View project detailMy contribution
BuiltI built and maintain the parent Flutter app—dashboards, grades and attendance, push notifications, multi-child accounts, APIs, and Google Play releases.
Available on
3D smartphone showing Intelecto Parent interface implementation video
Circl
One Erlangga account for multiple learning products—sign in once, move between tools, and open embedded experiences such as digital reading inside the same app.
My contribution
BuiltI build core super-app experiences—navigation, responsive UI, Erlangga SSO, and embedded product flows such as the E-Book mini app.
Available on
3D smartphone showing Circl interface implementation video
E-Book Erlangga
A digital reading mini app for accessing Erlangga books within the connected Circl experience.
My contribution
BuiltI integrated the E-Book digital reading experience as an embedded mini app inside Circl.
Available in Circl
3D smartphone showing E-Book Erlangga mini app inside Circl
Monevo
Personal finance tracker for daily transactions, categories, and multiple accounts—with summaries that show where money goes over time.
My contribution
Personal · In progressPersonal project—transactions, categories, multi-account summaries, Provider and Clean Architecture; no public demo yet.
3D smartphone showing Monevo official preview
Educational web portfolio
Learning experiences, mapped to the books behind them.
01 · Book-linked collection
Kimia · SMA/MA Kelas XI
Two interactive experiences developed as digital companions for the elective chemistry title.
2 interactive projects
02 · Book-linked collection
Explore Koding & Kecerdasan Artifisial · SD/MI Kelas VI
A set of logic and computational-thinking activities connected to the Explore learning book.
3 interactive projects
03 · Book-linked collection
Koding dan Kecerdasan Artifisial 1 · SMA/MA Kelas X
A friendly programming experience that introduces coding concepts through play.
1 interactive project
04 · Multi-book question bank
Erlangga Quiz
Timed questions sourced from four Erlangga science books across chemistry, physics, and biology.
1 interactive project
05 · Atlas-linked collection
Atlas Indonesia dan Dunia
Geography and world-history experiences connected to Erlangga’s atlas reference material.
2 interactive projects
06 · Early-years book companion
Aktivitas Merdeka Literasi & STEAM · Sains 4–5 Tahun
A playful Beelang STEAM experience connected to an Erlangga for Kids early-years activity book.
1 interactive project
Experience03
Building, learning, and shipping—one product at a time.
Work experience
Sep 2024 — Present
App Programmer
PT Penerbit Erlangga
Developing and maintaining cross-platform Flutter products on Android, iOS, Windows, macOS, and web.
Present
Founder · Flutter Developer
Sangga Software House · sangga.id
Running Sangga Software House for websites, company profiles, campaign pages, and Flutter apps for iOS and Android.
Oct 2023 — Jan 2024
Web Developer Intern
PT Allsys Solutions
Developed a web-based financial information system with accounting reports, dashboards, receivables, payables, and asset management using CodeIgniter and MySQL.
Education
Dec 2024
Bachelor of Computer Science
Universitas Pakuan · GPA 3.78 / 4.00
Completed a Computer Science degree with a focus on software development, databases, information systems, and mobile and web applications.
2020
Senior High School
SMAS Kosgoro · Kota Bogor
Graduated from senior high school in Bogor.
Open to project collaboration
Have a project in mind?
I'm open to Flutter project work and professional collaboration—new products, product partnerships, or a build we can ship together. Email is the best way to start.