I’m a Full Stack Developer who enjoys building end-to-end applications — from backend APIs and databases to responsive user interfaces and Android apps.
Alongside core development, I actively explore Cloud Computing, DevOps practices, and applied Data Science & Machine Learning through real projects.

I believe in learning by building, writing clean code, and solving practical problems.

• Flexbox, CSS Grid, Responsive UI
• DOM Manipulation, Events
• Promises, Async/Await
• React Components, Props, State, Hooks

• Spring MVC, Spring Data JPA
• RESTful APIs, CRUD Operations
• Authentication & Authorization
• JWT, Role-Based Access
• API Design & Validation

• MySQL, SQL Queries
• JPA / Hibernate
• Database Design

• Android SDK
• Activities, Fragments, Intents
• XML Layouts, Material Design
• MVVM Architecture
• ViewModel, LiveData, Room, Navigation
• Retrofit, REST APIs
• SharedPreferences

• AWS: EC2, S3, IAM (Basic)
• Oracle Cloud (OCI): Compute Instances, Networking, Security Lists (Basic)
• Dockerfiles, Images, Containers
• CI/CD with GitHub Actions
• Linux CLI, Bash (Basic)

• Data Cleaning & EDA
• Regression & Classification
• ANN Models
• Feature Engineering
• Model Evaluation & Statistics

• SDLC, Agile Methodology
• Debugging & Logging
• Basic Unit Testing
• Code Reviews

• EchoCart – Full Stack E-Commerce Platform (AWS Deployed)
  🔗 Github: Link

  🌐 Live: Link

• Shopping Admin Dashboard – Role-based admin UI with data management
  🔗 Github: Link

  🌐 Live: Link

• Foodify Android App - Food ordering app with clean UI & MVVM architecture
  🔗 Github: Link

  📦 APK: Link

• WeatherX Android App - Weather forcast app with weather news
  🔗 Github: Link

  📦 APK: Link

• Customer Churn Prediction - End-to-end churn analysis with ML models
  🔗 Github: Link

  🌐 Live: Link

• Smart Loan Risk Predictor - Loan default risk classification system
  🔗 Github: Link

  🌐 Live: Link

• Task Manager (Deployed Cloud Deployed Application) – Web app hosted on Oracle Cloud Infrastructure
  (Repo will be public soon)

• Building production-ready backend APIs with Spring Boot
• Improving system design & architecture skills
• Deploying applications using Docker & AWS
• Writing cleaner, testable, and maintainable code

• 💼 LinkedIn: Piyush Kumar
• 📧 Email: 0602.piyushkumar@gmail.com

⭐ Thanks for visiting my GitHub. Feel free to explore my repositories and projects.