cta pattern

Rayhan Kobir 👋

Software Engineer 🧑‍đŸ’ģ

A passionate Software Engineer and freelancer, dedicated to building innovative & high-quality software products and web applications, back-end focused solutions.
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Skills

JavaScript
TypeScript
Go
Node.js
Next Js
Nest Js
React
PostgreSQL
MongoDB
Redis
WebRTC
WebSocket
GraphQL
Microservices
Docker
AWS
Serverless
CI/CD
Git
RPC
tRPC

Let's connect

Email

rayhankobir793@gmail.com

Phone

+8801704355097

Address

Dhaka, Bangladesh

My Experiences

Where I’ve Been Employed

The Red It

The Red It

Software Engineer

  • Handle their backend services
  • Implement Voice Calling Extentension

Node.js

Express.js

GraphQL

AWS

Docker

Serverless

React

Oct, 2024 - Present

Dhaka, Bangladesh (Remote)

Velar

Velar

Junior Software Engineer

Next.js

Node.js

Nest.js

Typescript

Docker

AWS

CI/CD

Kubernetes

MongoDB

PostgreSQL

Prisma

tRPC

Feb, 2024 - Oct, 2024

Montreal, Canada (Remote)

Xtream Solution Ltd.

Xtream Solution Ltd.

Junior Software Engineer

WebSocket

WebRTC

GraphQL

Microservices

RPC

Jan, 2023 - Sep, 2023

Chittagong, Bangladesh (Hybrid)

Xtream Solution Ltd.

Xtream Solution Ltd.

Trainee Software Engineer

Node.js

Nest.js

Typescript

MongoDB

PostgreSQL

Jan, 2022 - Dec, 2022

Chittagong, Bangladesh (Hybrid)

My Latest Works

Featured Projects And Works

Compilation of case studies that evoke my sense of pride

Puzzle Solver

Puzzle Solver

I recently built a web application and API to solve the 8-puzzle problem. The algorithm uses the A* search algorithm and the Manhattan distance heuristic to effectively explore the state space and find the optimal solution.

ReactNode JsExpressREST APIA* Algorithm
PreviewGitHub
Silent Eye (Admin)

Silent Eye (Admin)

SilentEye is an advanced mobile device monitoring and control platform designed to give users comprehensive remote access and management capabilities using only a phone number—no physical access or app installation required.

Next.jsTailwind CSSTypeScriptReact
🔐 Confidential
Silent Eye (Core)

Silent Eye (Core)

SilentEye is an advanced mobile device monitoring and control platform designed to give users comprehensive remote access and management capabilities using only a phone number—no physical access or app installation required.

Next.jsTailwind CSSTypeScriptReact
🔐 Confidential
Silent Eye (Visitor)

Silent Eye (Visitor)

SilentEye is an advanced mobile device monitoring and control platform designed to give users comprehensive remote access and management capabilities using only a phone number—no physical access or app installation required.

Next.jsTailwind CSSTypeScriptReact
PreviewGitHub
Sports Dashboard

Sports Dashboard

A dashboard for sports management, built with Next.js and Node.js.

Next.jsNodejsMongoDBRedisTypeScriptReact
PreviewGitHub
Trion - Chatbot Platform

Trion - Chatbot Platform

Trion is a chatbot platform that allows users to create flows and send messages to social media platforms or other media.

Nest.jsNext.jsPostgreSQLRedisWebSocketGraphQL
🔐 Confidential

Educational Background

Where I’ve Been Studied

Green University of Bangladesh

Green University of Bangladesh

Bachelor of Science in Computer Science and Engineering

Nov 2024 - Dec 2024

Dhaka, Bangladesh

Naogaon Polytechnic Institute

Naogaon Polytechnic Institute

Diploma in Computer Science and Engineering

Nov 2024 - Dec 2024

Naogaon, Rajshahi

Al Helal Islami Accademy

Al Helal Islami Accademy

Seconday School Certificate

Nov 2024 - Dec 2024

Sapahar, Naogaon

Testimonials

What People Say About Me

Here are some testimonials from my clients and colleagues.

Perfect communication, did everything i asked for and explained the code to me as well. Can only recommend him! Quick and fast, helped with site for my business

★★★★★

Zennit Music

Music Company

Fiverr

He was willing to go up and beyond the requested requirements to get the job done. I appreciate this seller's willing to work with what I requested him to complete.

★★★★★

Carlly B

Business Owner

Fiverr

Good job i have to say, comunication as wanted, reacted to revisions and all that in a professional matter.

★★★★★

George

Business Consultant

Fiverr

Perfect!! And very fast in delivering the project, when I had problem in running the project he knew where was the problem and showed me exactly how to run it.

★★★★★

Toom Hary

Business Consultant

Fiverr

He does exceptional quality work, he was very patient with my requirements and offered to make all the modifications and revisions needed. I definitely would recommend.

★★★★★

Jooseph

Product Manager

Fiverr

Resilient and kept on trying different solutions until problem resolved. thank you.

★★★★★

Alterson

Software Engineer

Fiverr

Rayhan Kobir was great to work with. The website looks exactly like the wire-frames supplied. Rayhan kobir was very responsive and delivered the product in a timely manner.

★★★★★

Revolution

Business Owner

Fiverr

It was great working with Raju Rayhan and will consider him for future products.

★★★★★

Dr Pradeep

Doctor

Fiverr

Perfect communication, did everything i asked for and explained the code to me as well. Can only recommend him! Quick and fast, helped with site for my business

★★★★★

Zennit Music

Music Company

Fiverr

He was willing to go up and beyond the requested requirements to get the job done. I appreciate this seller's willing to work with what I requested him to complete.

★★★★★

Carlly B

Business Owner

Fiverr

Good job i have to say, comunication as wanted, reacted to revisions and all that in a professional matter.

★★★★★

George

Business Consultant

Fiverr

Perfect!! And very fast in delivering the project, when I had problem in running the project he knew where was the problem and showed me exactly how to run it.

★★★★★

Toom Hary

Business Consultant

Fiverr

He does exceptional quality work, he was very patient with my requirements and offered to make all the modifications and revisions needed. I definitely would recommend.

★★★★★

Jooseph

Product Manager

Fiverr

Resilient and kept on trying different solutions until problem resolved. thank you.

★★★★★

Alterson

Software Engineer

Fiverr

Rayhan Kobir was great to work with. The website looks exactly like the wire-frames supplied. Rayhan kobir was very responsive and delivered the product in a timely manner.

★★★★★

Revolution

Business Owner

Fiverr

It was great working with Raju Rayhan and will consider him for future products.

★★★★★

Dr Pradeep

Doctor

Fiverr
Pattern

Let's Connect and Create Something Amazing!

Ready to bring your next project to life? Let's connect and discuss how I can help you achieve your goals.

Contact Me

Thoughts and Blogs

Read My Narrative

Look into my thoughts and my latest blogs.

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Understanding Caching Strategies in Next.js

Understanding Caching Strategies in Next.js

Caching is a vital performance optimization technique that stores copies of files or data in a temporary storage location (the cache) for quick access. Implementing an effective caching strategy can significantly improve application speed, reduce load on servers, and provide a better user experience.

Node.js-āĻ WebRTC āĻ¸ā§‡āĻŸāĻ†āĻĒ

Node.js-āĻ WebRTC āĻ¸ā§‡āĻŸāĻ†āĻĒ

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Hackathons

I like Building Things

During my time in university, I attended 5+ hackathons. People from around the country would come together and build incredible things in 2-3 days. It was eye-opening to see the endless possibilities brought to life by a group of motivated and passionate individuals.

  • StepSync

    StepSync

    Chrome Extension

    Developing a chrome extension that will allow users to sop as like scribed capture their steps and export as pdf.