---
title: "Justin Jose - Senior Software Engineer — Android in Bangalore Urban | Tal"
description: "Meet Justin Jose, Senior Android Engineer · Kotlin · Jetpack Compose · SDK Development · 9M+ Scale based in Bangalore Urban. AI stack includes cursor, github copilot, and ollama."
image: "https://tal.club/meet/justin-jose/share-image"
---

# Justin Jose on Tal

## Headline

Senior Android Engineer · Kotlin · Jetpack Compose · SDK Development · 9M\+ Scale

## About

Senior Android Engineer with 4\.8 years of experience building and scaling high\-traffic consumer applications \(9\.2M\+ downloads, 670k MAU, 75k DAU\)\. At GreedyGame — an Indian ad\-tech company building incentive and cashback apps — I lead architecture and performance initiatives across production Android systems, including migrations from MVVM → MVI, XML → Jetpack Compose, and monolith → multi\-module architecture\. Things I've shipped that I'm proud of: \- Reduced real\-world app startup time from 16\.3s → 3\.3s \(\~80%\) by eliminating main\-thread blocking I/O, parallelising initialisation, and combining API payloads \- Improved crash\-free users from 95% → 99\.9% via structured coroutine exception handling, global error boundaries, and production monitoring \- Reduced APK size by 20MB through R8, resource shrinking, SVG migration, and dynamic splits \- Designed and published a revenue\-generating Android SDK to Maven Central, consumed by external publisher apps \- Modularised shared business logic across 6 apps via a common core module in a monorepo — reducing duplication and enabling consistent feature rollout \- Acted as de facto product owner on several initiatives — wrote PRDs, led cross\-functional scoping, and drove features from ideation to production with no dedicated PM Outside work, I independently built and monetised Pentecostal Hymns — available on both Play Store and App Store, 50k\+ downloads, 6k MAU, 99% crash\-free, subscription revenue via RevenueCat\. I'm particularly interested in scalable mobile architecture, performance engineering, concurrency, and SDK/platform systems at high\-impact product companies\. Tech I work with: Kotlin · Jetpack Compose · MVI · Clean Architecture · Coroutines · Flow · Room · Koin · WorkManager · Retrofit · Firebase · Jenkins · GA4 · Mixpanel · AWS · GCP

## Location

Bangalore Urban

## AI stack

cursor

github copilot

ollama

openai

## Work experience

Senior Software Engineer — Android at GreedyGame, Jun 2021 \- Present · 4 yrs 11 mos, Bengaluru, Karnataka, India, GreedyGame is an Indian ad\-tech company building incentive and cashback apps with combined ARR > $1M across 25\+ Android applications\. \- Lead Android development for applications serving 9\.2M\+ downloads, 670k MAU, and 75k DAU in production ad\-tech systems\. \- Reduced real\-world startup time from 16\.3s → 3\.3s \(\~80%\) by eliminating main\-thread blocking I/O, optimising API payloads, parallelising initialisation, and combining multiple API calls — measuring from app open to user reaching home screen, not just first frame\. \- Improved crash\-free users from 95% → 99\.9% via structured coroutine exception handling, global error boundaries, StrictMode enforcement, and production monitoring\. \- Led full architecture migrations across production apps: MVVM → MVI · XML → Jetpack Compose · LiveData → Flow · Monolith → Multi\-module \- Reduced APK size by 20MB through R8 optimisation, resource shrinking, SVG asset migration, app bundles, and dynamic splits\. \- Architected shared Android core module powering 6 consumer apps within a monorepo — enabling consistent feature rollout and eliminating cross\-team duplication\. \- Designed and published a revenue\-generating Android SDK to Maven Central, consumed by external publisher applications\. \- Strengthened app security mechanisms that prevented approximately $4,000/month in fraudulent activity\. \- Acted as de facto product owner on multiple initiatives — wrote PRDs, led cross\-functional scoping with backend, design, and QA, and drove features from ideation to production with no dedicated PM\. \- Mentored 5 engineers over 4 years via code reviews, architecture guidance, and production incident handling \(critical crashes, hotfixes, rollbacks, memory leak debugging\)\.

## Education

Advanced General Management Program, Institute of Management Technology, Ghaziabad

Bachelor of Technology \- B\.Tech, Computer Science and Engineering, Presidency University Bangalore

[View the original profile](https://tal.club/meet/justin-jose)

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