---
title: "Tanseer Khan (@tanseer) | Hashnode"
description: "DevOps & Cloud Engineer. Read the latest articles by Tanseer Khan on Hashnode."
url: "https://hashnode.com/@tanseer"
---

@tanseer

# Tanseer Khan

@tanseer · Nashik, Maharashtra, India · Joined May 2025

DevOps & Cloud Engineer

### [Build and Deploy a 3 Tier Serverless App on AWS with Terraform Modules](https://terraform-and-aws.hashnode.dev/build-and-deploy-a-3-tier-serverless-app-on-aws-with-terraform-modules?utm_source=hashnode&utm_medium=feed)

Reusable modules, three isolated environments, and remote state on S3 with native locking

14 min read · [terraform-and-aws.hashnode.dev](https://terraform-and-aws.hashnode.dev/build-and-deploy-a-3-tier-serverless-app-on-aws-with-terraform-modules?utm_source=hashnode&utm_medium=feed)

[Jul 14](https://hashnode.com/posts/build-and-deploy-a-3-tier-serverless-app-on-aws-with-terraform-modules/6a55c19ef3633c9cd854f8ce)

### [Terraform guide to IAM Policies: The Two Cases You Need to Know](https://terraform-and-aws.hashnode.dev/terraform-guide-to-iam-policies-the-two-cases-you-need-to-know?utm_source=hashnode&utm_medium=feed)

When to attach a ready made policy and when to write your own When you first start writing IAM setup in Terraform, the examples online can feel like they contradict each other. One tutorial writes a l

5 min read · [terraform-and-aws.hashnode.dev](https://terraform-and-aws.hashnode.dev/terraform-guide-to-iam-policies-the-two-cases-you-need-to-know?utm_source=hashnode&utm_medium=feed)

[Jul 1](https://hashnode.com/posts/terraform-guide-to-iam-policies-the-two-cases-you-need-to-know/6a44f7f97222d8edb932c460)

### [Lambda MicroVMs Are Kind of Insane: Tiny Virtual Machines That Boot in Milliseconds and Sleep When You Are Not Looking](https://devops-aws-cloud.hashnode.dev/lambda-microvms-are-kind-of-insane-tiny-virtual-machines-that-boot-in-milliseconds-and-sleep-when-you-are-not-looking?utm_source=hashnode&utm_medium=feed)

A beginner friendly guide to the Firecracker powered microVMs behind AWS Lambda, the new suspend and resume superpower, and the big question everyone keeps asking: is this still serverless?

12 min read · [devops-aws-cloud.hashnode.dev](https://devops-aws-cloud.hashnode.dev/lambda-microvms-are-kind-of-insane-tiny-virtual-machines-that-boot-in-milliseconds-and-sleep-when-you-are-not-looking?utm_source=hashnode&utm_medium=feed)

[Jun 30](https://hashnode.com/posts/lambda-microvms-are-kind-of-insane-tiny-virtual-machines-that-boot-in-milliseconds-and-sleep-when-you-are-not-looking/6a434b6a61a036e1542c516d)

### [Who Wins the Variable Fight in Terraform?](https://terraform-and-aws.hashnode.dev/who-wins-the-variable-fight-in-terraform?utm_source=hashnode&utm_medium=feed)

A beginner friendly guide to understanding which value Terraform actually picks when the same variable is set in many places

7 min read · [terraform-and-aws.hashnode.dev](https://terraform-and-aws.hashnode.dev/who-wins-the-variable-fight-in-terraform?utm_source=hashnode&utm_medium=feed)

[Jun 24](https://hashnode.com/posts/who-wins-the-variable-fight-in-terraform/6a3bb92341701e3e3b5a99c7)

### [The Bucket That Must Exist Before Everything Else](https://terraform-and-aws.hashnode.dev/the-bucket-that-must-exist-before-everything-else?utm_source=hashnode&utm_medium=feed)

How I created a dedicated S3 bucket to hold my Terraform remote backend, and every small lesson I learned along the way\*.\* Introduction When you start working with Terraform, one of the first real pu

12 min read · [terraform-and-aws.hashnode.dev](https://terraform-and-aws.hashnode.dev/the-bucket-that-must-exist-before-everything-else?utm_source=hashnode&utm_medium=feed)

[Jun 23](https://hashnode.com/posts/the-bucket-that-must-exist-before-everything-else/6a3a60fec13d03b6e451b14c)