Welcome

My name is Pujan and I’m a Principal Software Architect and AWS enthusiast I have more than 16 years of industry experience in various domains (Enterprise, Networking, Streaming, Banking, IoT). I have architected and built scaled connected products for multiple brands and categories.

My particular passion is Cloud specially AWS. I am AWS Certified Solutions Architect - Professional. I program in TypeScript/Node.js/Java frequently and in Bash/Python occasionally.

To know more about me click here .

Featured

• Designing Effective AWS EDA Architecture

  17 Oct, 2025

  Error Handling, Retries, Idempotency & Poison Messages in Event-Driven Architecture

• AOSS OpenSearch Serverless Development using AWS CDK

  Updated: 12 Nov, 2024

  OpenSearch serverless AOSS

• AWS SigV4 Signing Request for any Services

  13 Nov, 2022

  AWS SigV4 Signing of requests for any Services

• AWS Cognito Service

  1 May, 2022

  AWS Cognito

• AWS Lambda Glitches

  26 Apr, 2019

  AWS Lambda Glitches

• Real-Time System Dashboard in Python using WebSocket

  13 Sep, 2017

  System Dashboard in Python using WebSocket and Flask

Recent Posts

• Global by Design: Serving a Static React App with S3 Multi-Region Access Points & CloudFront OAC

  23 Oct, 2025

  Global by Design: Serving a Static React App with S3 Multi-Region Access Points & CloudFront OAC Architecture

• Choosing the Right AWS Messaging Service

  11 Aug, 2025

  Choosing the Right AWS Messaging Service Depends on Your Use Case

• The Ultimate Guide to Must-Know TypeScript Features

  21 Aug, 2024

  TypeScript Tips, Tricks & Must-Know Features Every Developer Should Know

• Key Management Service in AWS

  26 Jul, 2024

  Key Management Service in AWS

• Feature Engineering for the Machine Learning Models

  1 May, 2024

  Feature Engineering for the Machine Learning Models