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kavizzz03/README.md

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Building scalable backend systems, Android apps, and automation workflows.
📍 Sri Lanka • ⚡ Performance • 🔒 Security • 🔌 Integrations

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Open to collaborations: Android • Backend APIs • Automation • Integrations

Executive Summary

I’m a developer focused on delivering production-grade systems:

  • Backend: Node.js/Express, PHP, REST APIs, authentication, database optimization
  • Mobile: Android apps in Kotlin/Java, Firebase, offline-ready SQLite
  • Automation: Python pipelines (Whisper-based subtitle generation), processing & integrations
  • Messaging Platforms: SMS / WhatsApp / Email workflow management

Specializations

⚙️ Backend Architecture

  • REST API design (clean structure + validation)
  • Auth & security (JWT/session patterns, access control)
  • Database design (MySQL schemas, indexing, optimization)
  • Integration-ready services (webhooks, gateways, automation)

📱 Android Development

  • Native Kotlin/Java applications
  • Firebase (Auth, DB, FCM)
  • Offline-first: SQLite + sync patterns
  • UI from scratch with performance in mind

🤖 Automation (Python)

  • Whisper subtitle generation pipelines
  • Batch processing & workflow automation
  • File handling, media processing, scheduling
  • Service integration & scripting utilities

🔌 Messaging & Communication Systems

  • SMS / WhatsApp / Email management
  • Templates, delivery workflows, logs
  • Admin dashboards and monitoring
  • Business-ready tooling (HTML/CSS/PHP)

Tech Stack

✅ Mobile

Mobile Stack

✅ Backend / Infra

Backend Stack

✅ Frontend

Frontend Stack

Selected Projects

1) Social Media Converter (React + Node.js + Express)

A web platform to convert/transform social media content with a fast UI and a scalable backend.

  • Highlights: clean API design, reliable processing workflow
  • Stack: React, Node.js, Express

2) Subtitle Generator (Whisper + Python + React + Node)

An end-to-end pipeline to generate subtitles automatically using Whisper-based speech-to-text.

  • Highlights: automation, file processing, accuracy-focused workflow
  • Stack: Python, Whisper, Node.js, React

3) Barinnana Mobile Game (Android / Kotlin)

A Kotlin-based Android game focused on smooth performance and clean gameplay architecture.

  • Highlights: performance, UX, gameplay logic
  • Stack: Kotlin

4) ASB Group — Communication Management System (HTML + PHP + CSS)

A business system for managing customer communication: SMS, WhatsApp, and Email workflows.

  • Highlights: dashboards, templates, delivery tracking
  • Stack: HTML, CSS, PHP

GitHub Analytics

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Contact

© 2026 • Built by Kavindu • Focused on scalable systems & real world products
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  1. FOL_official_WebSite FOL_official_WebSite Public

    FOL Clothing Brands Official Web Site

    HTML

  2. Hire_Us_App Hire_Us_App Public

    Java

  3. CPShareTxt_WebSite CPShareTxt_WebSite Public

    Texts and File Share Web site

    TSQL

  4. Mp3-Convertor-and-Mp4-Video-Downloader Mp3-Convertor-and-Mp4-Video-Downloader Public

    JavaScript 1

  5. My_Official_Web My_Official_Web Public

    Using React and Node js Based Own Web Site

    CSS

  6. AI-Subtitle-Generator AI-Subtitle-Generator Public

    An AI-powered subtitle generator that converts recorded or uploaded English audio/video into `.srt` subtitle files using OpenAI Whisper.

    Python