Android Developer

Building innovative mobile applications with a passion for great user experience

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About Me

I am a passionate Android developer with experience in building modern mobile applications. I have participated in multiple hackathons, completed various professional courses, and worked on numerous projects that have helped me develop a strong skill set in Android development.

My goal is to create apps that not only look great but also provide exceptional user experiences. I am constantly learning new technologies and techniques to stay at the forefront of mobile development.

My Skills

Android Development

Native Android development with Kotlin and Java

Mobile UI/UX

Creating intuitive and beautiful user interfaces

Database Integration

SQLite, Room, Firebase, and RESTful APIs

Modern Architecture

MVVM, Clean Architecture, and Jetpack Compose

My Portfolio

Xrosstalk

Xrosstalk

Android Real time Chatting Application with emotion-based features

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Food Delivery App

Full-Stack Food Delivery App

Complete food delivery application built with Kotlin and Jetpack Compose

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Weather App Screenshot

Modern Weather App

Dynamic weather app with real-time updates and smooth animations

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Goal Tracker App

Goal Tracker App

Goal tracking app with daily goals and progress tracking

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Weather App Screenshot

Reconnect

A Tinder-style contact management app to organize and reconnect with meaningful contacts

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Madurai Cybercrime Station AutomationProject

6 Months

Worked on project for the Madurai Cybercrime Police Station over six months. This project includes creation of automation software to handle every step of the complaints process, including recording complaints, accessing complaint details through NCRP, keeping track of the status, and limiting access to information to authorized individuals only. This project was created using Flask and MongoDB, and we are delighted that they are utilizing this technologies to suit their needs at this time.

Thanks to TCE Madurai and Madurai CCPS for the opportunity.

Flask MongoDB Python Authentication Authorization
Cybercrime Police Station Project Image 1 Cybercrime Police Station Project Image 2

Xrosstalk - Real-time Chatting Application

7 Months

Developed an Android real-time chatting application with emotion-based features. The application uses Firebase as a backend for real-time synchronization of messages, allowing users to chat with their preferred emotional expressions.

This application was built with Android Studio and is currently deployed on the Play Store, providing users with a unique emotion-based messaging experience.

Associated with: Thiagarajar College of Engineering (Nov 2021 - Jun 2022)

Firebase Android Studio Java Real-time Database UI/UX Design
Xrosstalk Application

Android Developer Intern - CaratLane Trading Private Limited

6 Months

Successfully completed an internship in the Technology department at CaratLane Trading Private Limited, Chennai office. Worked under the guidance of Praveen Vk - Technical Lead.

Intern Code: CLI552

Duration: December 2023 - May 2024 (01/12/2023 to 31/05/2024)

Contributed to the development of Android applications, implementing features and solutions for the company's mobile presence in the jewelry e-commerce space.

Android Development Kotlin Java Mobile UI/UX Git
CaratLane Internship Certificate

Student Behavior Analysis in Classroom using Facial Emotion Recognitions

ICICSA-2023

Student Behavior Analysis in Classroom using Facial Emotion Recognitions was accepted and presented at International Conference on Intelligent Computing Systems and Applications (ICICSA-2023) organized by National Institute of Technology Silchar, Assam, India during September 22-23, 2023

ICICSA-2023 Conference Certificate

Intelligent Emotion Recognition System

ICNGCS-PSG

Intelligent Emotion Recognition System was accepted and published at the Second International Conference On Next Generation Computing Systems - PSG. I am excited to have received certification for my contribution to the field of Computer Vision.

ICNGCS-PSG Conference Certificate

Multimodal Medical Image Diagnosis through LIME with Explainable AI

ICRTACES' 24

My paper on Multimodal medical image diagnosis through LIME with Explainable AI has been presented in the International Conference on Recent Trends in Artificial Intelligence, CyberSecurity and Embedded Systems (ICRTACES' 24) held at Ramakrishnan College of Engineering, Trichy. I am excited for my contribution to the field of Computer Vision.

ICRTACES'24 Conference Certificate

My Resume

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Get In Touch

pathrinarayananmdu@gmail.com

+91 9790061191

Madurai, Tamil Nadu, India

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Xrosstalk - Android Real time Chatting Application

GitHub Repository
Nov 2021 - Jun 2022 Associated with Thiagarajar College of Engineering
Xrosstalk Screenshot

This application build with android studio with firebase as a backend for Real time synchronization of the messages. This application includes emotion based chatting so that the user can chat with user with their preferred emotions. This application is currently deployed on playstore.

Skills

  • Firebase
  • Android Studio
  • Java
  • Android

Full-Stack Food Delivery Android App

GitHub Repository Demo Video
Food Delivery App Screenshot

A complete full-stack food delivery app built with Kotlin and Jetpack Compose, integrating Firebase Authentication, API handling, state management, and Clean Architecture to deliver a seamless eCommerce experience.

Features

  • Authentication – Secure login/signup with Firebase
  • API Integration – Fetch real-time restaurant data using Retrofit
  • Wishlist & Cart Flow – Efficient state management for smooth UI updates
  • Order & Checkout Flow – Seamless transaction process
  • Push Notifications – Real-time order updates
  • Dagger Hilt – Modular and scalable dependency injection
  • Clean Architecture – Maintainable and well-structured codebase

Tech Stack

  • Kotlin
  • Jetpack Compose
  • Firebase
  • Retrofit
  • Dagger Hilt
  • ViewModel
  • StateFlow
  • Room Database
  • Navigation Component
  • Coroutines & Flow

Modern Weather App

GitHub Repository Demo Video
Weather App Screenshot

A dynamic weather app built with Kotlin and Jetpack Compose, integrating real-time weather updates, API handling, and smooth animations for a modern UI experience.

Features

  • Kotlin + Jetpack Compose – Modern UI toolkit for Android
  • MVVM Architecture – Well-structured and maintainable code
  • Retrofit – API handling for real-time weather data
  • MotionLayout – Smooth and interactive UI animations
  • Live Weather Updates – Dynamic UI adapts based on weather conditions

Tech Stack

  • Kotlin
  • Jetpack Compose
  • Retrofit
  • MotionLayout
  • ViewModel
  • LiveData
  • Coroutines
  • Flow
  • Navigation Component

Reconnect - Contact Management App

Demo Video
In collaboration with Thiyaga B
Reconnect App Screenshot

Too many contacts, but not enough real connections? Over time, our contact lists get cluttered with old numbers, forgotten names, and people we once knew but never reached out to again. Manually cleaning it up? Too much effort.

That's why I built Reconnect—an interactive app that helps you organize, clean, and reconnect with meaningful contacts, all with a Tinder-style swipe UI.

Features

  • Swipe Right – Keep contacts you're interested in maintaining
  • Swipe Left – Remove contacts you no longer need
  • Swipe Up – Mark friends you want to catch up with soon
  • Bulk Organization – Group similar contacts and delete outdated ones in bulk
  • Memory Sharing – Makes reaching out after a long time feel more natural
  • Contact Integration – Seamlessly integrated with your local contacts list

Tech Stack

  • Kotlin
  • Android SDK
  • MVVM Architecture
  • Room Database
  • Contacts API
  • Material Design
  • Custom Animations
  • Coroutines

Goal Tracker App with Firebase

GitHub Repository Demo Video
Goal Tracker App Screenshot

"A goal properly set is halfway reached" – Zig Ziglar

I wanted a simple way to track my goals, so I built a Goal Tracker App while learning more about Android development. Along the way, I got to explore:

Features

  • Firebase Authentication – For user sign-in
  • Firestore Database – To store and manage goals
  • Jetpack Compose – For a clean and simple UI
  • State Management – For a smooth user experience

Why This Project?

Sometimes, it's hard to stay consistent with goals. I thought having an app that tracks progress and shows streaks might help keep the motivation going.

How It Can Be Useful

If you're trying to build habits or stay on track with your goals, this app might help. The daily check-ins and calendar streaks make it easier to stay consistent and see progress over time.

Tech Stack

  • Kotlin
  • Jetpack Compose
  • Firebase Authentication
  • Firestore Database
  • MVVM Architecture
  • Material Design
  • Navigation Component