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Senior
Registration: 16.09.2026

Isral Bustami

Specialization: Lead Mobile Engineer / Android Engineer
— Hands-on Lead Mobile Engineer with 11+ years of Android engineering experience across Kotlin and Java, specializing in modern Android development with Jetpack Compose, Coroutines, and scalable mobile architecture. — Experienced leading engineering teams while remaining actively involved in architecture, implementation, code review, testing, and production delivery. — Strong backend and cloud understanding across REST APIs, Flask, PostgreSQL, Redis, AWS, Docker, and CI/CD, with experience owning products from architecture through production.
Mobile Application Development Android SDK Kotlin Redis iOS Software Development Android AWS React Native Git Docker RESTful API Scrum PostgreSQL CI/CD methodologies Project Management Java Agile
— Hands-on Lead Mobile Engineer with 11+ years of Android engineering experience across Kotlin and Java, specializing in modern Android development with Jetpack Compose, Coroutines, and scalable mobile architecture. — Experienced leading engineering teams while remaining actively involved in architecture, implementation, code review, testing, and production delivery. — Strong backend and cloud understanding across REST APIs, Flask, PostgreSQL, Redis, AWS, Docker, and CI/CD, with experience owning products from architecture through production.
Mobile Application Development Android SDK Kotlin Redis iOS Software Development Android AWS React Native Git Docker RESTful API Scrum PostgreSQL CI/CD methodologies Project Management Java Agile

Skills

Kotlin
Java
Jetpack Compose
Compose Multiplatform
Kotlin Multiplatform
Android SDK
Coroutines
Clean Architecture
MVVM
Dependency Injection
JUnit
MockK
REST APIs
PostgreSQL
Redis
AWS
Docker
CI/CD
Flask
GCP
Kotlin/Native
Git
React Native
Technical Leadership

Work experience

Founder / Lead Engineer
Till the present day |Mismaiti
Compose Multiplatform, Kotlin, Kotlin/Native, Flask, PostgreSQL, Redis, AWS
AI-assisted application-generation platform. ● Built the product from concept to production, owning product direction, mobile architecture, implementation, backend services, deployment, and iteration. ● Designed reusable application-generation architecture around Compose Multiplatform and Kotlin. ● Built workflows that map project context into structured representations and reusable templates that generate production-ready mobile application code.
Founder / Lead Engineer
Till the present day |MyWarta
Android, Compose Multiplatform, Flask, Redis, PostgreSQL, Docker, GCP
Production multi-tenant SaaS platform for churches. ● Built mobile applications, administration workflows, backend services, AI-assisted content workflows, and configurable onboarding. ● Operated containerized backend services using Flask, Redis, PostgreSQL, and cloud infrastructure. ● Owned technical, product, UX, deployment, and operational decisions while remaining hands-on in implementation.
Senior Android Engineer
11.2023 - 09.2025 |Appen
React Native, Compose Multiplatform, Kotlin, Kotlin/Native, iOS, Android SDK
● Led a production React Native → Compose Multiplatform migration across Android and iOS, defining architecture and implementation strategy. ● Built shared Kotlin business logic and Compose UI while handling Kotlin/Native interoperability and native iOS integrations. ● Worked hands-on across product requirements, architecture, implementation, testing, code review, and production delivery. ● Improved maintainability through reusable components, automated testing, and technical guidance.
Senior Android Engineer
09.2022 - 11.2023 |Quadrant.io (Acquired by Appen)
Kotlin, Java, Android SDK, Clean Architecture
● Developed and maintained production Android applications using Kotlin and Java. ● Refactored legacy modules toward Clean Architecture and contributed to architecture and engineering standards. ● Collaborated with Product, Design, Backend, and QA to turn requirements into production features.
Tech Lead
10.2021 - 08.2022 |HappyFresh
Android, Kotlin, Compose Multiplatform, CI/CD
● Led 8 Android and cross-platform engineers, owning technical execution, architecture, delivery planning, and engineering quality. ● Stayed close to engineering through architecture discussions, code reviews, technical coaching, and delivery decisions. ● Partnered with Product on technical feasibility, prioritization, estimation, and delivery tradeoffs.
Senior Android Engineer
10.2019 - 09.2021 |HappyFresh
Kotlin, Android SDK, Coroutines, MVVM
● Built and shipped customer-facing Android features in a large-scale production environment. ● Mentored 10 Android engineers on Kotlin, architecture, testing, and modern Android development. ● Contributed to engineering practices through architecture guidance, code reviews, and technical standards.
Android Engineer / Developer
2013 - 2019 |NDA
Java, Kotlin, Android SDK, REST APIs
● Designed, developed, tested, and deployed production Android applications across the earlier Android/Java era and subsequent Kotlin adoption. ● Integrated REST APIs, backend administration systems, analytics, and third-party services. ● Maintained production applications through feature delivery, bug fixes, and performance improvements.

Educational background

Professional Education
Lanai Hotel School

Languages

EnglishAdvancedIndonesianNative