KHALID

Designing and developing digital solutions for the next generation of businesses.

2026 Handcrafted with precision.

Built by Khalid Hasan

The Engineer behind the code.

I solve business problems through software. With over two years of experience in the industry, I've specialized in building distributed systems that are as scalable as they are maintainable.

My philosophy is simple: Code is for humans to read and machines to execute.I focus on clarity, performance, and usability in every line I write.

Vision

Committed to building the next generation of digital products that empower users and push technical boundaries.

Now

See what I'm focused on currently.

Tech Stack

Languages

JavaScript

TypeScript

C++

Core Skills

System Design

OOP

Problem Solving

Other

Communication

Adaptability

Teamwork

Project Management

Team Management

Technologies

Node.js

Express.js

React.js

Next.js

Redux

Docker

CI/CD

MongoDB

Mongoose

PostgreSQL

MySQL

Prisma

Firebase

NextAuth

JWT

Redis

BullMQ

AWS(EC2, Lambda, S3)

Experience

Full-Stack Developer

SM Technology

Oct 2024 - Present

Enhanced the authentication system with Redis, making the auth middleware 70% faster, speeding up profile access, and optimized data loading where needed.

Implemented BullMQ to manage video uploads, large file handling, and bulk database entries, used FFmpeg to convert videos and geTodnerate thumbnails, reducing frontend loading time by 20%

Developed secure video streaming, loading videos in chunks with token-based access to ensure safety.

Set up CI/CD pipelines to build and deploy in real-time, catching issues early and improving release efficiency by 15%.

Education

Bachelor of Science in Chemistry

National University ( Dinajpur Govt. College )

2018 - 2022