Software Engineer

Hey, I'm|

I build production systems with Node.js & Python, push performance limits with Rust, and ship full-stack products with Next.js & Remix.

Engineering Shopify infrastructure at Efoli LLC — Rust (WASM) migrations, event-driven microservices, and B2B discount engines. Previously scaled to 1M+ users at Wondersoft. BSc CSE, CUET.

View Experience→Download CV Get in Touch

order_handler.rs

// Shopify order webhook handler

pub async fn handle_order(

payload: Json<OrderEvent>,

db: &PgPool,

) -> Result<StatusCode> {

let discount = engine

::compute(&event.cart)

.await?;

repo::save(&db, &event, discount)

.await?;

Ok(StatusCode::CREATED)

}

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Where I've worked

Experience

May 2025 — PresentCurrent

Mirpur DOHS, Dhaka

May 2025 — PresentCurrent

Software Engineer

EFOLI LLC

Remodelled a whole app following Shopify standard design patterns, achieving the BFS badge.
Designed and implemented a modular discount engine supporting complex business rules — geo-location, customer segmentation, currency, and B2B logic.
Migrated performance-critical logic to Rust using Shopify Functions (WASM), achieving significantly faster execution over JavaScript-based implementations.
Reduced storage costs via optimised file compression and automated deletion cycles for Shopify assets.
Architected a microservice for customer activity logging handling thousands of concurrent events without latency degradation.

Node.jsTypeScriptRemixRustWASMLiquidShopify FunctionsMySQLMicroservicesDigitalOcean

June 2024 — April 2025

Gulshan, Dhaka

June 2024 — April 2025

Junior Software Engineer (Fullstack)

Wondersoft Solution Limited

Designed and scaled RESTful APIs for CRM features, supporting 1M+ active users.
Built an event-driven email notification system, improving automation and user engagement.
Integrated Redis caching layer, improving API response time by ~50% and reducing database load.
Resolved critical payment gateway vulnerabilities, improving transaction reliability.
Developed Progressive Web Applications (PWAs) and a fullstack publisher portal dashboard for analytics.
Delivered ~2% annual revenue boost by integrating Google AdSense and fixing payment gateway issues.

Node.jsTypeScriptExpress.jsRedisMySQLReactNext.jsPWAAWS

What I work with

Skills

Backend & Systems

NodeJS

ExpressJS

NestJS

FastAPI

GraphQL

REST APIs

Microservices

Event-driven Arch

Serverless

Frontend

ReactJS

NextJS

Typescript

Javascript

Redux

TailwindCSS

FramerMotion

SCSS

Remix

React Query

Zustand

SSR / SSG / CSR

Databases & Data

MongoDB

MySQL

PostgreSQL

Prisma

Redis

Languages

Typescript

Javascript

Python

Rust

Infrastructure & Tools

AWS

Linux

Docker

Git

CI/CD

Postman

JMeter

Algorithmic Problem Solving

Codeforces

300+ problems

LeetCode

400+ problems

CodeChef

2★ rating

What I've built

Projects

Fullstack real-time video communication system built with WebRTC (PeerJS) and Socket.io, featuring a backend signaling server and scalable group messaging.

Live Demo Source