Senior Android Developer · 10+ years

Android apps used by millions.

I'm Pankaj Kumar Jangid, a senior Android engineer shipping secure, high-performance mobile products at scale, currently on UOB TMRW digital banking.

10+ years across fintech, e-commerce, and government in 4 countries. Kotlin, Jetpack Compose, Clean Architecture, CI/CD.

View Work Download CV

Shipped to production

UOB TMRW

Digital banking · SEA

3M+ users

Decathlon

E-commerce · India

4.6★ · 200K+/mo

RajCop

Govt · Rajasthan Police

330K+ installs

English Madhyam

EdTech

540K+ installs

Digilux AI

Smart home · IoT

BLE + voice

3M+

Users reached

1M+

App downloads

Countries

10+

Years

// about

About Me

I work with Kotlin, Jetpack Compose, Clean Architecture, and CI/CD pipelines to ship fast, stable, scalable apps. Over 10+ years I have delivered 30+ major features, cut APK size by 25%, held a 96% crash-free rate for 3M+ users, and mentored engineers across 4 countries.

Pankaj Kumar Jangid — Senior Android Developer

I have spent 10+ years building Android apps that people use every day, from a banking super-app serving millions across Southeast Asia to e-commerce, government, and education products shipped in 4 countries.

My focus is secure, high-performance features that scale: Kotlin and Jetpack Compose, Clean Architecture across multi-module codebases, and CI/CD that keeps releases fast and stable. I have cut APK size by 25%, held a 96% crash-free rate at scale, and mentored engineers into the same standards.

I also write about Android architecture and keep a steady stream of open-source samples. I am at my best where solid engineering meets real product impact.

Education

MCA

Rajasthan Technical University

2011 – 2014

First Class With Honours

BCA

Rajasthan University

2008 – 2011

First Class

Certifications

Project Management Foundations

Advanced Android Bootcamp

Udemy

Flutter Advanced

Udemy

Intro to Flutter Development (Dart)

App Brewery

// skills

Technical Skills

A comprehensive toolkit built over 10+ years of Android development experience.

Languages & Frameworks

Kotlin Java Jetpack Compose Flutter Dart

Architecture & Patterns

MVVM MVP Clean Architecture SOLID Design Patterns

Reactive & Async

Kotlin Coroutines RxJava Flow & StateFlow

Platforms & Cross-platform

Android SDK Kotlin Multiplatform Material Design

Jetpack & AndroidX

Compose ViewModel LiveData Data Binding Navigation Component WorkManager

Networking & Data

Retrofit2 OkHttp REST APIs Room SQLite Firebase

Dependency Injection

Dagger-Hilt Koin

Testing & Quality

JUnit Espresso Mockito UI Automator Crashlytics SonarQube

CI/CD & Tools

Git Gradle GitHub Actions Jenkins Fastlane R8 ProGuard Bitbucket JIRA Agile

// experience

Work Experience

My professional journey in software development.

Senior Android Developer

Accion Labs

Dec 2023 – Present Kuala Lumpur, Malaysia

Lead Android development for UOB TMRW digital banking app across Southeast Asia (Thailand, Singapore, Malaysia, Indonesia)
Built Online Fraud Management module for Thailand market
Delivered Card Services features for Singapore market
Designed features aligned with UOB Bank's digital banking objectives across multiple markets
Managed security and compliance for banking sector standards
Optimized app performance using analytics and monitoring tools
Mentored 5+ engineers in Kotlin Coroutines and Clean Architecture
Improved delivery time by 35% through CI/CD pipeline optimization

Senior Software Engineer

Dew Solutions

Oct 2021 – Nov 2023 Gurugram, India (Remote)

Contributed to Decathlon India's e-commerce app
Delivered Search, Home, Cart, and Order modules
Added AMI third-party seller integration
Reduced APK size by 25% using R8 and ProGuard
Strengthened unit testing with JUnit and Mockito

Senior Software Engineer

Dew Solutions Pvt Ltd

Oct 2021 – Nov 2023 Gurugram, India (Remote)

Contributed to Decathlon India's e-commerce app serving 70+ sports categories
Delivered Search, Home, Cart, and Order modules with enhanced UX
Added AMI third-party seller integration expanding marketplace offerings
Reduced APK size by 25% using R8 and ProGuard optimization
Achieved 30% increase in user interactions through UI/UX improvements
Strengthened unit testing with JUnit and Mockito for code reliability
Mentored junior developers and conducted code reviews

Android Developer

CMS Computers Ltd

Jun 2020 – Oct 2021 Jaipur, India

Built secure apps for Rajasthan Police (RajCop & Citizen)
Improved performance and encryption
Developed scalable citizen and officer features

Android Developer

CMS Computers Limited

Jun 2020 – Oct 2021 Jaipur, India

Built secure apps for Rajasthan Police — RajCop Official (officer app) and RajCop Citizen (public safety portal)
Implemented encryption and security protocols for sensitive government data
Developed scalable citizen-facing features including FIR filing and complaint tracking
Gathered and analyzed project requirements with government stakeholders
Improved app performance and reduced crash rates through systematic debugging

Android Developer

Octal IT Solution

May 2018 – May 2020 Jaipur, India

Built B2B/B2C on-demand apps for global clients
Developed CityJobber and Voila Helper
Managed full app lifecycle and Play Store releases

Android Developer

Octal Info Solution

May 2018 – May 2020 Jaipur, India

Built B2B/B2C on-demand service apps for international clients (US, UK, UAE, Singapore)
Developed CityJobber domestic services platform and Voila SG/Voila Helper housekeeping apps
Communicated with international clients across different time zones and cultures
Managed full app lifecycle from development to Play Store releases
Integrated real-time tracking, booking systems, and in-app chat features

Android Developer

RAD Techno Solutions

Mar 2016 – Apr 2018 Jaipur, India

Developed multiple native Android applications from concept to deployment
Integrated REST APIs and improved UI/UX across projects
Contributed to full mobile application development lifecycle

Android Trainee

SAG Infotech

Sep 2015 – Feb 2016 Jaipur, India

Learned Android fundamentals with Java
Built basic apps and practiced REST API integration

ExoPlayer Education Firebase Kotlin

Live

English Madhyam

English Learning Platform

540K+ installs · 4.4★

Built an English learning platform with interactive lessons, quizzes, and progress tracking. Implemented audio playback and speech recognition features.

Education Audio Firebase Material Design

Live

Voila SG & Voila Helper

On-demand Housekeeping - Singapore

Singapore on-demand

Built customer and helper apps for on-demand housekeeping services in Singapore. Implemented real-time booking, tracking, in-app chat, and payment integration.

Real-time Maps Chat Booking Payments

Live

CityJobber

Domestic & Formal Services Platform

Services marketplace

Developed a services marketplace connecting users with domestic and professional service providers. Built booking flow, provider profiles, and review system.

Booking Maps REST APIs Material Design

// writing