Skip to content
View masumluf's full-sized avatar
🎯
Focusing
🎯
Focusing

Block or report masumluf

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
masumluf/README.md

Hey! Nice to see you.

I'm MD Rezaul Karim — Senior Full Stack Software Engineer

Full Stack Engineer with strong experience in scalable web platforms, cloud-native systems, AI-powered products, modern data platforms, and software testing.


👨‍💻 About Me

  • Senior Full Stack Software Engineer with experience across JavaScript, TypeScript, PHP, Python, and C#
  • Currently working at Field Nation on backend systems, mobile improvements, and data platform engineering
  • Experienced in building AI products, RAG systems, recommendation engines, and knowledge-based chat systems
  • Strong background in system design, microservices, REST APIs, cloud infrastructure, performance optimization, and software testing
  • Hands-on experience with end-to-end testing and browser automation using Puppeteer
  • Also worked deeply in data engineering with AWS Redshift, dbt, DMS, Fivetran, Zero-ETL, and ELT pipelines
  • I love learning, building useful systems, reading books, solving competitive programming problems, cooking, singing, and traveling

🚀 Tech Stack

Languages

JavaScript TypeScript PHP Python CSharp

Frontend

React React Native Expo Next.js Gatsby Vue.js Svelte Redux

Backend & APIs

Node.js NestJS Express.js Koa FastAPI Serverless GraphQL WebSocket .NET

Testing

Puppeteer Jest E2E Testing Automation Testing

Databases & Search

MySQL PostgreSQL MongoDB DynamoDB Cosmos DB Redis Elasticsearch Algolia

Cloud, DevOps & Data

AWS Azure Docker Terraform Lambda CloudFormation Redshift dbt Fivetran GitHub Actions

Tools & Practices

Git RabbitMQ Linux Nginx CI/CD TDD


🤖 AI & Data Engineering

  • Built RAG-based chatting systems using diverse information sources
  • Worked with OpenAI, LLaMA, Gemini, vector databases, and multimodal AI systems
  • Built product recommendation systems and knowledge-based chatting systems
  • Worked on object detection with YOLO
  • Designed and maintained analytics/data pipelines using AWS Redshift, dbt, DMS, Fivetran, Zero-ETL, ELT pipelines, and Logstash

💼 Experience Snapshot

Senior Software Engineer — Field Nation

Apr 2025 - Present

  • Working on backend applications using Nest.js
  • Maintaining and improving the Field Nation data platform
  • Building scalable ingestion and orchestration systems using AWS DMS, Fivetran, Aurora Zero-ETL, and Redshift Serverless
  • Creating governed models with dbt
  • Improving mobile UI with React Native
  • Supporting AI and analytics workflows with reliable data foundations

Senior Full Stack Developer — Invicta Solution BD Team

Aug 2022 - Mar 2025

  • Built advanced RAG systems
  • Improved recommendation systems with Llama 3 and OpenAI-based workflows
  • Developed backend services on AWS serverless
  • Built internal testing and e-commerce optimization tools
  • Automated AWS infrastructure with Terraform

Full Stack Developer / Software Engineer

2019 - 2022

  • Built large-scale web systems across education, content, healthcare, and commerce
  • Led teams and shipped products using MERN, Next.js, Python, Socket.io, and cloud tooling

🎓 Education

B.Sc. in Computer Science & Engineering
University of Information Technology & Sciences


🔌 Plugin Development

  • Shopify: Saap Subscription
  • WordPress: Upsy for WooCommerce

📊 GitHub Stats

Rezaul's Stats

Rezaul's Top Languages


🌍 Connect With Me


✨ A Few Fun Things

  • 📚 I love reading books
  • 🧠 I enjoy solving competitive programming problems
  • 🍳 I love cooking
  • 🎤 I love singing
  • ✈️ I love traveling

I believe every day is a learning opportunity.

@masumluf's activity is private