Vishal Singh // KMP · Android

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whoami

About Me

// developer · security engineer · open source builder · 3d artist

VS

Vishal Singh

KMP · Android · Security

5 yrs experience RE Enthusiast KMP Dev Open Source

Live GitHub Stats

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public repos

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total stars

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followers

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total forks

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Kotlin Everywhere

// kmp · jetpack compose

Hands-on experience building and shipping multiple Android & iOS applications, including apps with thousands of installs and long-term open-source projects.

Kotlin Multiplatform - Android, iOS, Desktop
Jetpack Compose - MVVM & Clean Architecture
Coroutines & Flow - Room, DataStore & APIs

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I Break Things

// frida · ghidra · xposed

Expertise in Android Security and Reverse-engineering (APK & Native). I find vulnerabilities, patch them, and ship the fix before anyone else notices.

Runtime Hooking - Custom Xposed & Frida
Core Android - Background & Accessibility Services
APK hardening - obfuscation that fights back

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UI That Moves Right

// canvas · shaders · compose

Not just standard layouts. I build complex custom UI that feels incredibly smooth, pushing the boundaries of what is visually possible on mobile.

Complex custom UI - Fluid animations
Interactive graphics - Canvas API
Visual effects - Graphics Shaders

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Beyond Android

// rust · c++ · linux · 3d art

In addition to Android, I have a solid 9-year background in Linux, including extensive work with CLI tools, bash scripting, and systems programming.

Rust - GUI Text Editor, Backend Server
C++ - Ray Tracer, Virtual Assistant
3D Art - Blender Modeling and Animation

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career

Work Experience

// professional history · roles · impact

2025 Jun Present

SDE-1 · Android Security Engineer

DailyRounds (Marrow)

Bangalore · Hybrid

Current Security

Own the end-to-end security of Marrow - runtime tamper detection, Frida/Xposed hook detection, and RASP systems that respond to attacks in real time.
Offensive security research: reverse engineer the app with Ghidra & Jadx, find the attack surface, patch it, and ship hardened code before anyone outside notices.
Build content protection systems preventing unauthorized recording, screenshotting, and redistribution of premium course material.
APK hardening, certificate pinning, bytecode-level obfuscation - raising the cost of attacks high enough that it's not worth trying.

RASP Frida Detection Xposed Detection Reverse Engineering Ghidra Kotlin Jetpack Compose APK Hardening

2024 Sep – May 9 months

SDE Intern

DailyRounds (Marrow)

Bengaluru · On-site

Internship

Built an internal KMP app for managing sales and availability - single Clean MVVM codebase running on both Android and iOS simultaneously. Zero duplicated business logic.
Created an internal Android library from scratch for synchronized event logging, making the QA testing flow dramatically faster with zero manual correlation overhead.
Implemented better UI and smooth custom animations in the Marrow app using modern Jetpack Compose APIs - things that actually made engineers say "wait, how did you do that?"

Kotlin Multiplatform Jetpack Compose KMP · Android · iOS Clean MVVM Custom Animations Internal Library

2023 Jun – Aug 3 months

Android Developer Intern

Pokee

Remote

Internship

Built a social connection app from scratch - 30+ custom layouts, 25+ API routes integrated, and a full MVVM + Hilt architecture set up before the senior team could finish their morning standup.
Shipped Firebase Auth, real-time Crashlytics monitoring, and a user profile system with active feedback loops - production-quality on the first intern project.

Kotlin Jetpack Compose MVVM · Hilt Firebase REST API

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AIR 101 · Zonal Rank 3

National Cyber Olympiad (NCO) - top national ranking in cyber / computing competition.

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App Sold Internationally

ScrollBlock was acquired internationally - built, shipped, and sold entirely by Vishal while in college.

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Google Jetpack Compose Camp

Completed Google-organized Android Jetpack Compose Camp - certified in modern Android UI.

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4k+ Play Store Installs

Combined installs across Snaptick (1k+, 4.6★) and Git Coach (3k+, 4.8★) within months of launch.

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featured work

Selected Projects

// production-ready · open source · used by real people

PROJECT_01

Scroll Block

Acquired Internationally

Status: Sold Platform: Android

Blocks addictive scrolling content like Instagram Reels and YouTube Shorts using Android's Accessibility Service. Includes smart timer, detailed usage analytics, and per-app customization.

Kotlin Jetpack Compose Accessibility Service Room & DataStore MVVM Hilt DI Foreground Service

App Progress

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PROJECT_02

Snaptick

Open Source

Installs: 1k+ Rating: 4.6★ Languages: 15+

A free daily planner with a minimal UI, Pomodoro timer, smart reminders, productivity analytics, and a home-screen Glance widget. Built offline-first with full localization in 15+ languages.

Kotlin Jetpack Compose Work Manager Glance Widget MVVM Hilt DI

App Progress Source Code

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PROJECT_03

Git Coach

Education

Installs: 3k+ Rating: 4.8★ Languages: 8

A free Git learning app with command references, interactive quizzes, and searchable documentation. Localized in 8 languages. 3k+ installs and a 4.8/5 rating on the Play Store within months.

Kotlin XML Layouts Jetpack Navigation Shared Preferences Localization

Source Code

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tech stack

My Skills

// languages · frameworks · security tools · environments

Development Stack

Kotlin

Android Studio

KMP

Swift

C++

Rust

Python

Go

Firebase

MySQL

MongoDB

Figma

Blender

Neovim

Linux

Postman

Security & Reverse Engineering

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Frida

Dynamic Instrumentation

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Ghidra

Static Analysis

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Jadx

APK Decompiler

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ADB

Android Debug Bridge

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APK Analysis

Binary Inspection

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Burp Suite

Network Interception

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RASP

Runtime Self-Protection

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SSL Pinning

Certificate Security

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Root Detection

Device Integrity

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Penetration Testing

Android PenTest

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APK Hardening

Obfuscation & ProGuard

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Hook Detection

Anti-Frida / Anti-Xposed

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get in touch

Let's Connect

// open to freelance · full-time · collaborations · security consulting

Available for new projects

Let's build something great together

I'm a developer who cares about craft - apps that look great, run smooth, and handle edge cases nobody else thought about.

Whether it's a new Android product, a security audit, or an open-source collab - I'm always open to interesting problems. I also do 3D animations in Blender for fun, so I can make your app look cool too.

⌥ github.com/vishal2376 in linkedin.com/in/vishal2376 𝕏 x.com/vishal2376 @ [email protected]

VISHAL SINGHSINGH