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roniahamed/README.md

Roni Ahamed | Backend Developer

I build Django backend systems for SaaS, booking platforms, and business tools

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About Me

I help startups launch SaaS, booking, and business platforms with secure APIs, clean database design, and smooth production deployment.

I work with startups and business teams to turn ideas into live products. I first understand your business goal, then build APIs that are easy to scale and easy to maintain.

You get clear updates, on-time milestones, and code your team can continue without confusion.

What this means for your project:

  • stable backend structure, so new features are easier to add
  • secure login and access control, so user data stays protected
  • faster database queries, so your app feels quicker to users
  • clean and testable code, so future maintenance costs stay lower

If you need backend help from planning to deployment, I can handle it end to end.


Featured Projects

1) Eastmond Villas (Production)

Production Live

Stack: Django REST Framework, PostgreSQL, Redis, Celery, WebSocket, AWS SES, JWT
Highlights:

  • Built the full backend from scratch for a villa rental and sales platform with role-based access (Admin, Manager, Agent, Customer)
  • Added full booking flow with date conflict checks, Google Calendar sync, and iCal support
  • Added real-time notifications and background email processing with Celery and AWS SES
  • Result: Property owners and agents can manage bookings faster and avoid double-booking issues.

2) CheckIn (Healthcare Queue System)

Production

Live

Stack: Django REST Framework, PostgreSQL, WebSocket, Celery
Highlights:

  • Built the full backend from scratch for patient queue and check-in workflow
  • Added real-time updates with WebSocket and background tasks with Celery
  • Prepared API docs and Postman collection for easy handover
  • Result: Clinic staff can manage patient flow with less manual confusion and faster check-in operations.

3) ExtraHandenAI (Assessment Platform)

Production Live

Stack: Django REST Framework, PostgreSQL
Highlights:

  • Built the backend from scratch for quiz and assessment flow with question bank and bulk upload support
  • Added secure token-based authentication and access control
  • Optimized database queries for large datasets (100,000+ records)
  • Result: Teams can run large-scale assessments more smoothly with faster response and easier content management.

Services I Provide

1) Backend API Development

  • Plan and build complete REST APIs using Django REST Framework
  • Add secure authentication (JWT, session login, roles and permissions)
  • Integrate third-party services like payment, email, and external APIs
  • Prepare API docs so your team can use and maintain the system easily

What you get:

  • API structure planning based on your product needs
  • Clean endpoint design with request/response standards
  • Admin-ready backend panel and role-based access (if needed)
  • Handover with docs and setup guide for your team

2) Existing Backend Improvement

  • Improve slow APIs with query fixes, caching, and clean refactoring
  • Fix bugs and stabilize existing backend systems
  • Clean up endpoints and make API responses more consistent
  • Improve database performance for better speed and scale

What you get:

  • Full backend review with issue list and priority plan
  • Code cleanup for better readability and long-term maintenance
  • Better API speed and fewer production errors
  • Clear report of what was fixed and what to improve next

3) Deployment & DevOps Support

  • Set up Docker-based deployment flow
  • Deploy on Linux server with Nginx and Gunicorn
  • Configure logs and production settings for stable runtime
  • Support release updates, hotfixes, and maintenance

What you get:

  • Production deployment checklist and server setup
  • Safe release process for future updates
  • Logging and basic monitoring setup
  • Post-launch support for fixes and small changes

Simple Pricing Model

1) MVP Build

  • Best for: new startup product or first backend version
  • Includes: API planning, core features, authentication, database setup, deployment
  • Delivery style: milestone-based (weekly updates)
  • Client benefit: you launch faster with a clear technical foundation

2) API Upgrade

  • Best for: existing backend with bugs, slow queries, or messy structure
  • Includes: code cleanup, performance improvement, endpoint standardization, docs update
  • Delivery style: audit + fix plan + implementation
  • Client benefit: fewer bugs, better speed, and easier future development

3) Deployment Support

  • Best for: teams who need help to launch or stabilize production
  • Includes: Docker setup, server deploy, Nginx/Gunicorn config, release support
  • Delivery style: setup + handover + support window
  • Client benefit: safer release process and more stable production uptime

Note: Final cost depends on project scope, timeline, and feature complexity.


Client Engagement Process

1) Discovery

  • We discuss your product idea, business goal, and timeline
  • I review your requirements and suggest the best backend plan
  • Benefit: you avoid wrong technical decisions early

2) Build

  • I develop the backend in small milestones
  • You get regular updates and demo-ready progress
  • Benefit: you can track progress clearly and reduce delivery risk

3) Delivery

  • I deliver clean code, API docs, and deployment support
  • After delivery, you get 3 months of free support
  • Benefit: your team gets a smooth handover and safer post-launch period

Delivery & Support

  • Clean and ready-to-use code delivery
  • API documentation and handover support for your team
  • After project completion, I provide 3 months of free support for fixes and small improvements

Why Clients Work With Me

  • You always know project status with clear communication and updates
  • You get business-focused backend decisions, not unnecessary complexity
  • You get fast delivery with maintainable code quality
  • You get dependable support during development and after launch

Core Tech Stack

Programming: Python, JavaScript, C, C++, SQL, HTML, CSS
Backend & Frameworks: Django, Django REST Framework, OAuth2, JWT, WebSocket, Celery, Redis, Django Channels, drf-spectacular
Databases: PostgreSQL, MySQL
APIs & Integrations: RESTful APIs, Stripe, Cloudinary, Google Calendar API, iCal, AWS SES
DevOps & Deployment: Git, GitHub, Postman, Docker, Linux Server, Nginx, Gunicorn, ASGI


Let’s Build Your Project

If you are looking for a backend developer for your startup, SaaS, or business platform, let’s discuss your project.

Pinned Loading

  1. Furniture-Bazar Furniture-Bazar Public

    Furniture Bazar is a complete e-commerce solution designed specifically for furniture retailers. Built with Django and modern web technologies, it offers a professional shopping experience with com…

    JavaScript 3 1

  2. FitCore FitCore Public

    FitCore is a cross-platform fitness app that offers AI-generated personalised meal plans and premium workout videos. The backend will be built using Django & Django REST Framework to serve as a rob…

    JavaScript 2

  3. Refresh-Your-DSA-and-Problem-Solving Refresh-Your-DSA-and-Problem-Solving Public

    এই রিপোজিটরিতে আপনি বিভিন্ন গুরুত্বপূর্ণ ডাটা স্ট্রাকচার এবং অ্যালগরিদম বিষয়ক প্রবলেমগুলোর সাজেশন পাবেন, একদম টপিকভিত্তিকভাবে। যারা LeetCode, Codeforces, AtCoder, বা অন্য কোনো প্ল্যাটফর্মে প্র্যাকট…

    Python 3 2