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vizahat36/README.md

👋 Hello, I'm Mohammed Vijahath

Backend-Focused Full Stack Developer | Java & Spring Boot | Open-Source Contributor

Backend-leaning Full Stack Developer with hands-on experience building
real-time systems, scalable REST APIs, automation pipelines, and AI-assisted applications.

Strong focus on code quality, system design fundamentals, and open-source contribution workflows,
particularly in Java, Spring Boot, and JavaScript ecosystems.

Profile Views

GitHub Streak
Top Languages
GitHub Stats
Contribution Graph
GitHub Trophies

Core Skills

Backend

Java Spring Boot REST API WebSockets JWT

Frontend

React JavaScript HTML5 CSS3

Database & Tools

MySQL PostgreSQL Docker Git

🚀 Open Source Contributions

🔹 TheAlgorithms (Java) — ~65k ⭐

  • ✅ Merged PR: Fixed Unicode digit parsing bug in MyAtoi
  • Replaced Character.isDigit() with strict ASCII digit validation
  • Ensured correct atoi behavior and prevented invalid numeric parsing
  • 🔗 TheAlgorithms/Java#7231

🔹 Vault-Web — Java / Spring Boot

  • ✅ Merged PRs: Added comprehensive unit tests across backend service layers
  • Implemented JUnit 5 + Mockito tests for:
    • UserService and AuthService (registration, authentication, validation)
    • ChatService and PrivateChatService (chat creation, messaging, edge cases)
    • GroupService (group lifecycle, membership, role-based rules)
  • Covered critical business logic, error handling, and regression scenarios
  • Tests are fast, isolated, and independent of DB/network
  • Completed and closed “Introduce Unit Tests for Backend Endpoints and Services” (Issue #109)
  • 🔗 PRs:

🚀 WordPress / Gutenberg (Active Contribution Preparation)

  • Studying Gutenberg block editor architecture
  • Working with @wordpress/components and React-based blocks
  • Practicing issue analysis, large codebase navigation, and clean, review-friendly commits

Selected Projects

Contact

“I focus on building systems that work reliably before making them fancy.”

Pinned Loading

  1. Chat_Room Chat_Room Public

    build by using java,spring boot ,html,css and javascript

    HTML 1

  2. Custom-WordPress-Plugin-Event-Manager Custom-WordPress-Plugin-Event-Manager Public

    PHP

  3. Crypto-Monitor-Backend-System Crypto-Monitor-Backend-System Public

    build a full backend system, interact with external APIs, use databases, and work with background jobs and event queues.

    JavaScript

  4. Intent-Expansion-Pipeline Intent-Expansion-Pipeline Public

    Python

  5. FocusLearn FocusLearn Public

    Java 1