Jefry Jacky
Senior Android Engineer at Ajaib
Special capital Region of Jakarta, Indonesia
Summary
👤
Senior🎓
Top SchoolJefry Jacky is a Senior Android Engineer with 9 years of hands-on experience building high-performance mobile apps and leading small teams across fintech and consumer startups in Jakarta. He’s certified in Android and proficient in Kotlin, Java, and Spring, with a Master’s in Computer Science from BINUS and a track record of migrating large codebases, cutting build times by 80%, and shrinking APK size by 60%. At Akseleran he drove modularization, CI/CD, dynamic feature delivery, and Baseline Profiles to keep crash rates above 99% free while coaching engineers on OKRs and best practices. He also has deep experience in real-time and secure messaging from earlier work on XMPP-based chat and encrypted communication apps. Motivated to ship useful, high-quality applications, he blends pragmatic architecture, testing, and developer ergonomics to accelerate delivery and reduce operational friction.
9 years of coding experience
11 years of employment as a software developer
Master's degree, Computer Science, 3.58, Master's degree, Computer Science, 3.58 at Universitas Bina Nusantara (Binus)
English, Chinese, Indonesian
Stackoverflow
799reputation
89kreached
9answers
2questions
Github Skills (39)
xmpp10
travis10
logger10
travis-ci10
java10
logcat10
android10
android-view10
timber10
matrix9
sip9
android-library9
jabber9
chat9
erlang8
Programming languages (5)
Github contributions (5)
jefryjacky/Authentication-Server
Aug 2020 - Jun 2026
Contributions:1 release, 75 pushes, 1 tag in 5 years 10 months
jefryjacky/SmartLog
Jul 2019 - Jun 2021
Contributions:1 release, 43 pushes, 1 branch in 1 year 10 months
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