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Khairul Kabir

Full-Stack Developer

Available for Web, API, WHMCS, Botble & AI-assisted Projects

Full-Stack Developer, AI-Assisted Vibe Coder & Automation Engineer

I am Khairul Kabir from Narsingdi, Bangladesh. I build websites, backend systems, Botble Marketplace plugins, WHMCS modules, payment and courier API integrations, and app project ideas using modern development skills and AI-powered workflows.

Explore Projects

4+

Years Learning & Practical Work

1+

Year Graphic Design

AI

Daily Development Assistant

const developer = {
  name: "Khairul Kabir",
  role: "Full-Stack Developer",
  focus: [
    "Laravel",
    "Botble CMS",
    "WHMCS Modules",
    "REST APIs",
    "AI-Assisted Coding"
  ],
  mindset: "Build practical solutions"
};

About Me

Practical developer with an AI-powered workflow.

I am a practical and fast-learning developer with around 4 years of combined learning and hands-on working experience in web development and around 1 year of graphic design experience. I started by learning web technologies and gradually moved into real-world project development, plugin customization, backend API work, CMS customization, and automation systems.

My strongest areas are backend development, API integration, system customization, automation logic, Botble CMS customization, WHMCS module development, and AI-assisted development. I enjoy solving technical problems and turning ideas into working products.

Main Focus

Backend API design, Laravel systems, marketplace customization, WHMCS automation, and scalable web architecture.

AI Workflow

I use AI for planning, coding support, debugging, documentation, UI ideas, and faster project prototyping.

What I Do

Services & expertise

I help build practical digital products, business automation systems, websites, CMS plugins, WHMCS modules, and AI-assisted app project plans.

Full-Stack Web Development

Business websites, dashboards, admin panels, database-driven systems, custom forms, responsive design, and backend features.

Backend API Development

REST API integration, payment APIs, courier APIs, marketplace API flow, authentication planning, and secure data handling.

Botble CMS Customization

Botble CMS, Botble Marketplace plugins, checkout workflow, vendor systems, courier integration, and admin customization.

WHMCS Modules & Themes

WHMCS module development, billing automation, hosting workflow, hooks, client area customization, and theme modification.

AI-Assisted Vibe Coding

Project planning, code explanation, debugging support, error analysis, feature breakdown, documentation, and rapid prototyping.

App Development Planning

Android app ideas, Flutter project planning, Firebase app structure, .NET app concepts, mobile UI flow, and AI-assisted prototypes.

Selected Projects

Project highlights

Visit GitHub
Botble Marketplace

bKash Payment Gateway Integration

A payment gateway solution for Botble Marketplace that supports bKash-based online payment workflow, checkout support, payment request/response handling, and backend configuration.

  • ✓ bKash API Integration
  • ✓ Payment Status Handling
  • ✓ Marketplace Checkout
  • ✓ Secure Flow Planning
Courier API

Steadfast Courier Plugin

A courier/logistics integration for Botble Marketplace that helps online businesses manage order delivery through Steadfast courier service.

  • ✓ Courier API
  • ✓ Delivery Request
  • ✓ Order Workflow
  • ✓ Admin Settings
WHMCS

WHMCS Custom Modules

Custom WHMCS module development and modification for billing, hosting, automation, client management, admin workflow, and hooks-based customization.

  • ✓ Module Development
  • ✓ Client Billing
  • ✓ Hosting Workflow
  • ✓ Hooks Logic
Finance App

Money Bag / মানিব্যাগ

A personal finance tracking application concept designed to help users manage income, expenses, and financial records with a simple interface.

  • ✓ Expense Tracking
  • ✓ Income Records
  • ✓ Firebase Planning
  • ✓ App UI Flow

Skills

Technical skill stack

Programming & Backend

PHP, Laravel, CodeIgniter Fundamentals, MySQL, Firebase, REST API, Backend Logic, Authentication Flow, Debugging.

CMS & Business Platforms

Botble CMS, Botble Marketplace, WordPress, WHMCS, Marketplace Customization, Hosting Automation, E-commerce Workflow.

Frontend & Design

HTML5, CSS3, JavaScript, Bootstrap, Responsive Design, Dashboard UI, Website Layout Design.

App Development Concepts

Android App Concepts, Flutter Project Planning, Firebase App Structure, .NET Application Concepts, Mobile UI Planning.

AI Skills

ChatGPT, Prompt Engineering, AI-assisted Coding, AI Debugging, AI Content Creation, AI Documentation, Workflow Planning.

Design & Tools

Canva, Photoshop, Adobe Premiere Pro Basics, Video Editing, Banner Design, Social Media Creative Design, Git, cPanel.

Process

My development process

01. Requirement Understanding

I understand project goals, users, admin workflow, and business logic.

02. Planning & System Flow

I plan database, API flow, user roles, dashboard sections, and automation logic.

03. UI Structure

I create or improve layout, dashboard structure, and user interface flow.

04. Development

I build backend, frontend, database, APIs, modules, plugins, and features.

05. Testing & Debugging

I test features, fix bugs, check workflow issues, and improve the system.

06. Deployment & Support

I help with deployment, hosting setup, basic server configuration, and improvements.

Contact

Let’s build something practical.

I am open to web development projects, backend development work, Botble CMS customization, WHMCS module development, API integration, AI-assisted development projects, and freelance collaboration.

Phone: 01980542289

Email: khairulkabir.dev@gmail.com

GitHub: github.com/khairulkabirdev

Facebook: facebook.com/khairulkabir.dev

Location: Narsingdi, Dhaka, Bangladesh