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wthstranger/README.md
ChatGPT Image Jul 18, 2026, 12_12_50 PM

🔥 Gopi Kumar | wthstranger

Android Developer • Flutter Developer • Cybersecurity Enthusiast

   

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👋 About Me

Building secure, scalable mobile & backend applications with a hacker's mindset. Passionate about turning ideas into reality through code, creativity, and security best practices.

🎓 B.Tech CSE (AI) | GIFT Autonomous, Bhubaneswar

💼 Full-Stack Developer | Android • Backend • Security

🔐 Security-First Developer | AppSec & Ethical Hacking Advocate

🎬 Content Creator | Photography & Video Editing Enthusiast

🚀 Always Innovating | Building production-grade applications

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🎯 What I Do

  • 🏗️ Design and develop scalable full-stack applications with modern architecture
  • 🔒 Implement security-first practices in application development
  • 📱 Create intuitive mobile experiences using Android & Flutter
  • ⚙️ Build robust backend systems with NestJS & Node.js
  • 🐛 Identify and fix security vulnerabilities through pentesting & AppSec
  • 🎨 Design engaging UI/UX and creative digital content

🚀 Tech Stack & Skills

🔐 Cyber Security

🎨 Creative Skills



🧠 Computer Science Fundamentals

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🚀 Featured Projects

📱 TalkHub – Social Media & Chat Application

A feature-rich social communication platform combining real-time messaging, audio/video calls, and social features

Key Features:

  • ✅ Firebase Authentication & Authorization
  • 💬 Real-Time Messaging with Firestore
  • 📞 Audio & Video Calling using WebRTC
  • 👥 Friend Request & Connection System
  • ❤️ Social Feed with Likes & Comments
  • 🔔 Push Notifications using Firebase Cloud Messaging (FCM)
  • 📸 Image Upload & Storage via Cloudinary
  • 🎨 Material Design UI

Tech Stack:

Frontend:    Java • Android SDK • Jetpack Compose • Material Design
Backend:     Firebase • Firestore • WebRTC
Services:    Cloudinary • FCM • Authentication
Architecture: MVVM • Repository Pattern • Dependency Injection

GitHub: TalkHub Repository

📝 Quiz Application

Interactive quiz platform with real-time scoring and progress tracking

Features: Question Bank • Instant Feedback • Score Analytics • Leaderboard

📊 GitHub Stats

🐍 Contribution Graph

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🏆 Achievements & Certifications

Certification Issuer Year
🏅 NPTEL - Data Structures & Algorithms using Java National Programme on Technology Enhanced Learning 2024
📱 Android Development Internship Ducat, Noida 2023
🔐 Cybersecurity Internship TDO Tech Education Pvt. Ltd. 2023
🛡️ Web Application Pentesting Course Advanced Security Training 2024

🎓 Education

B.Tech in Computer Science Engineering (AI)
📍 GIFT Autonomous, Bhubaneswar
📅 Currently Pursuing

💬 Let's Connect & Collaborate

I'm always excited to discuss:

  • 🚀 Innovative mobile & backend development
  • 🔐 Security best practices & ethical hacking
  • 💡 Open-source contributions
  • 🎨 Creative digital projects
  • 🤝 Freelance opportunities & collaborations

📞 Get In Touch

GitHub Email LinkedIn Instagram

📈 My Development Philosophy

Security First → Code Quality → User Experience → Continuous Learning
  • 🔒 Security First - Every line of code with security in mind
  • ✨ Clean Code - Maintainable, readable, and well-documented
  • 🎯 User Focused - Building for real user needs
  • 📚 Always Learning - Staying updated with latest tech trends

⚡ Code • Secure • Create • Innovate ⚡

"The best way to predict the future is to invent it." - Alan Kay

Made with ❤️ by Gopi Kumar | OxStranger21

Profile Views

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  1. TalkHub TalkHub Public

    TalkHub is a modern Android social media app featuring real-time chat, audio/video calling, post sharing, and secure Firebase-powered authentication.

  2. online_exam_app online_exam_app Public

    Quiz App is a modern Android application that allows users to create, share, and solve quizzes using unique Quiz IDs. Built with Java, XML, Firebase Authentication, and Firestore, it provides a cle…

    Java 1

  3. Portfolio Portfolio Public

    Hi, I'm Gopi Kumar, an Android & Flutter Developer

    TypeScript 1

  4. github_code github_code Public

    A quick Git & GitHub command reference for initializing repositories, cloning projects, managing remotes, and pushing code efficiently.

    1

  5. TryHackMe TryHackMe Public

    🛡️ My TryHackMe cybersecurity learning journey, including personal notes, labs, commands, and practical security skills.