Deddy Rumapea
Android Engineer at Kredivo Group
Singapore
Summary
👤
Senior🎓
Top SchoolDeddy Rumapea is an Android engineer with 10 years of experience building scalable, user-focused mobile and full-stack applications from Singapore. He has driven measurable impact at PropTech and sustainability startups—leading Android development for a smart estate super app, migrating 180+ XML screens to Jetpack Compose, and improving crash-free sessions to 99.8% while shrinking app size by 60%. As a Google-backed startup co-founder he shipped an MVP with strong retention (57% D7) and secured incubation funding, and he’s taught and mentored hundreds of developers through national programs. Skilled across Kotlin, Jetpack Compose, React, Node.js, MongoDB and R, he blends product-minded engineering with reusable design systems that accelerate delivery and reduce maintenance overhead. Notably, he cut build times by 65% by migrating from KAPT to KSP and routinely optimizes engineering workflows to save dozens of hours monthly.
10 years of coding experience
4 years of employment as a software developer
Bachelor's degree Information Systems, Bachelor's degree Information Systems at Universitas Jambi
English, Indonesian
Stackoverflow
474reputation
147kreached
10answers
0questions
Github Skills (53)
team-project10
javascript10
open-source10
android-pdfviewer10
android-application10
compose9
viewer9
pdf-viewer9
annotation-processing9
compose-android9
kotlin9
jetpack-compose-navigation9
pdf9
compose-desktop9
kotlin-android9
Programming languages (7)
Github contributions (5)
deddyrumapea/typingmeter
May 2021 - Jun 2022
A simple typing speed test website
Contributions:81 commits, 20 PRs, 62 pushes in 1 year 1 month
reactspeedjavascripttyping-speed-testtyping-speed
deddyrumapea/KamusBatak
Apr 2022 - Jul 2024
A dictionary app for Batak languages
Contributions:8 PRs, 17 pushes, 9 branches in 2 years 4 months
dictionarylanguagesandroidjetpack-composeroom-database
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