About Me

I'm Aman Kumar, an Android Developer based in Chennai, India. I specialize in building secure, scalable mobile applications.

My work focuses on performance, reliability, and system-level understanding — from application architecture to database design, security mechanisms, and low-level platform behavior.

Currently, I work at Protectt.ai, developing mobile security technologies and production-ready Android solutions used in real-world environments.

Core Expertise

• Android Application Development (Kotlin)
• Mobile Security & App Protection
• Database Engineering (SQL, MySQL)
• Performance Optimization
• API Integration & Backend Communication
• Secure App & SDK Development

Technologies

• Kotlin
• Java
• Android SDK & NDK
• Jetpack Compose & XML UI
• Room Database & DataStore
• Firebase Services
• REST APIs
• Git & GitHub
• Gradle Build System
• JNI / Native Integration (C/C++)

Advanced Tooling & Specialized Skills

My work frequently involves low-level Android internals, security analysis, reverse engineering, and performance-critical mobile systems.

Reverse Engineering & Analysis

• JADX — Android APK decompilation & code analysis
• MT Manager — APK editing, Smali patching, resource inspection
• Ghidra — Native (C/C++) reverse engineering & disassembly
• APKTool — Smali editing & rebuilding
• Frida — Runtime hooking & dynamic analysis
• adb & logcat — Runtime debugging and behavior analysis

Android Development & Security

• REST API integration
• Ktor Client / Mock Server implementation
• Gradle build system & AAR publishing
• R8 / ProGuard rules & code protection
• Firebase (Auth, Firestore, FCM, Analytics)

Cryptography & Secure Systems

• AES (GCM, CBC, CTR modes)
• RSA (OAEP with SHA-256, MGF1)
• Hybrid encryption (RSA/ECIES + AES-GCM)
• Base64 & Hex encoding/decoding
• XOR and classical cipher implementations
• Secure key & IV management

Professional Experience

• Product Engineer — Protectt.ai
  May 2025 – Present | Chennai
• Teaching Assistant — ABV-IIITM Gwalior
  Aug 2024 – May 2025
  Mentored 150+ students in SQL and database systems.

Education

Integrated B.Tech + M.Tech in Information Technology
ABV-Indian Institute of Information Technology and Management, Gwalior

Interests

I am particularly interested in scalable software systems, mobile security, reverse engineering, database architecture, and building reliable real-world applications.