OPEN TO WORK

Hi, I am Rafi Uzzaman

Software Development Engineer

6 years building scalable APIs, optimizing databases, and shipping production-ready code

Node.jsTypeScriptReactMongoDBAWSDocker
Email Me
🚀

Backend Engineering

Building scalable REST APIs with Node.js, Express, and TypeScript

⚡

Performance Optimization

Database schema design and query optimization for high-volume data

☁️

Cloud Deployment

AWS infrastructure management (EC2, S3) and containerization with Docker

EXPERIENCE

6 years building production systems at scale

Pawzeeble

Software Development Engineer

January 2022 - May 2025RemoteFull-time
  • ▸Designed and refactored Mongoose schemas for high-volume queries, improving fetch speeds and performance
  • ▸Contributed to TypeScript migration (Nest-like structure) by refactoring modules, writing data migration scripts, and adapting legacy code
  • ▸Integrated SendGrid, TextLocal, and Interakt WhatsApp APIs for transactional messaging with custom email templates
  • ▸Secured AWS S3 buckets, configured private folders for sensitive documents and automated presigned-URL access
  • ▸Maintained production Node.js applications on AWS EC2 instances, handling deployments via SSH and debugging

Freelance

Software Developer

August 2019 - January 2022RemoteFreelance
  • ▸Developed backend APIs with Node.js and Express, implementing business logic per client requirements
  • ▸Designed MongoDB schemas using Mongoose with optimized queries and relational integrity
  • ▸Built React components from Figma designs using Hooks, ensuring responsive and reusable UI architecture
  • ▸Integrated features into production React applications, resolved bugs, and maintained UI consistency
  • ▸Wrote unit and integration tests with Jest and Supertest to ensure API reliability and code coverage
View All Experience

SKILLS

Technologies I use to build amazing products

Backend

Node.js95%
Express95%
TypeScript90%
NestJS85%
REST APIs95%

Databases

MongoDB95%
Mongoose95%
PostgreSQL85%
TypeORM80%
Redis75%

Frontend

React85%
JavaScript95%
HTML5/CSS390%
Responsive Design90%

DevOps & Tools

AWS (EC2, S3)85%
Docker80%
Git/GitHub95%
GitHub Actions85%
Jest/Supertest90%

PROJECTS

Featured work from Pawzeeble and freelance projects

PAWZEEBLE
🔄

TypeScript Migration & Architecture Rewrite

📅 2023-2024

Contributed to core backend rewrite from JavaScript to TypeScript with Nest-like architecture

TypeScriptNestJSMongoDBData Migration
  • ✓Refactored modules for type safety and better code organization
  • ✓Wrote custom migration scripts for seamless data transition
  • ✓Improved code maintainability and reduced runtime errors
FREELANCE
🛒

atgkhidmat.com - Promotional Products Supplier

📅 2020

Built complete product catalog website with admin panel and RESTful APIs

HTMLCSSJavaScriptExpressMongoDBNetlify
  • ✓Dynamic product catalog with smooth animations
  • ✓Full admin panel for content management
  • ✓RESTful APIs for form submissions and operations
  • ✓Deployed frontend on Netlify
FREELANCE
⚛️

Breeyz - React Component Development

📅 2021

Converted Figma designs into modular React components with proper state management

ReactReact HooksFigmaResponsive Design
  • ✓Pixel-perfect implementation of design mockups
  • ✓Modular component architecture for reusability
  • ✓Responsive layouts across all device sizes
View Projects
⚡ AVAILABLE FOR OPPORTUNITIES

Let's Build Something Amazing!

I'm always interested in hearing about new projects and opportunities. Whether it's a full-time role or freelance work, let's chat!

Get In TouchView Work