Dhaka, Bangladesh — open to new opportunities

Ashraful Islam

Software Engineer ·Backend & Systems

I design and ship production backend systems — real-time trading infrastructure, payment flows, and distributed workers — in Node.js, NestJS, and TypeScript. Most recently I led backend delivery of a live copy-trading platform across a 10-engineer team, from architecture to production.

View selected work Resume

ash@dev — zsh

ash@dev:~$

years shipping production systems: 4+
engineers led across web, API & mobile: 10
production applications delivered: 15+
domains — fintech, e-commerce & automation: 4

checks run server-side every 5 min

Where I've worked

Experience

July 2024 — PresentCurrent

full-time · onsite

Software Engineer · Core Devs Ltd.

Architecting and developing scalable backend services for production-scale applications in Dhaka, Bangladesh.

Architected and developed scalable backend services using NestJS, Node.js, and TypeScript for production-scale applications
Designed modular, testable REST APIs following SOLID principles and clean architecture
Built secure authentication and authorization systems using JWT, refresh tokens, and role-based access control (RBAC)
Optimized MongoDB and PostgreSQL queries and indexing strategies, improving API response times and database performance
Implemented background jobs, asynchronous processing, and event-driven workflows for high-throughput operations
Deployed and maintained production services on AWS with CI/CD pipelines, monitoring, and third-party integrations (payment gateways, cloud storage, email providers)
Mentored junior developers and collaborated across frontend, QA, and product teams to deliver reliable features

Node.js · NestJS · Express.js · TypeScript · MongoDB · PostgreSQL · AWS · Docker · Git

February 2023 — June 2024

full-time · onsite

Software Developer · Mitali International

Developed and maintained a complete e-commerce platform using the MERN stack in Dhaka, Bangladesh.

Developed and maintained a complete e-commerce platform end-to-end using the MERN stack
Designed REST APIs for product management, orders, customers, inventory, and payments, backed by secure authentication and session management
Designed MongoDB schemas and optimized aggregation pipelines for efficient, high-volume data retrieval
Integrated payment gateways, image uploads, and shipping management into the platform
Built responsive user interfaces in React.js with a reusable component architecture
Improved application performance through database optimization, lazy loading, and API tuning, while owning deployments and production support

React.js · Node.js · Express.js · MongoDB · JavaScript · Git

Selected work

Projects

Production systems I've architected, built, and shipped — each with a full case study covering the architecture, trade-offs, and outcomes.

May 2026Project Lead & Core Backend DeveloperLive

Real-time trading SaaS platform

Kvants Trading App is a real-time trading SaaS platform powering web and React Native mobile apps, with trade execution, account management, and portfolio sync.

Node.js · Express.js · WebSockets · MongoDB · Redis · Stripe

Case study Live

System Architect & Backend Developer

Sentiment-Driven Automated Trading System

Automated crypto futures trading bot that blends AI news, social, and news-API sentiment into one composite signal, gates every trade through a dedicated risk engine, and executes on Kraken Futures with exchange-side stop-loss/take-profit protection.

NestJS · TypeScript · Node.js · Turborepo · Redis · BullMQ

Case study

2023Full-Stack Product EngineerLive

Full-stack E-commerce Platform

Full-stack e-commerce platform for a honey producer, with a complete customer storefront and a self-service admin back office. It serves 1,000+ active users,

Node.js · Express.js · TypeScript · MongoDB · Next.js · Blockchain

Case study Live

December 2024Project Lead & Full-Stack Web3 DeveloperProduction

Decentralized Application (dApp)

A Web3 ecosystem dApp enabling wallet connection, MRT token purchases, staking, and on-chain interactions through an intuitive interface.

React.js · Web3 · Wagmi · MetaMask · WalletConnect · Smart Contracts

Case study Live

Full-Stack Developer, Team Lead & Backend/API Architect

Enterprise E-Commerce Platform

Enterprise-grade full-stack e-commerce platform with Web3 cryptocurrency payment verification, Telegram-powered business automation, and a scalable modular backend architecture.

Next.js · React · TypeScript · Redux Toolkit · TanStack React Query · Tailwind CSS

Case study

All projects

Toolbox

Skills

The stack I reach for when reliability and throughput matter.

01Languages & Backend

JavaScript (ES6+)
TypeScript
Python
Node.js
Express.js
NestJS

02API Development

REST APIs
Webhooks
Third-Party Integrations
Authentication (JWT)
Backend Services

03Databases

MongoDB
Mongoose
PostgreSQL
Supabase
DynamoDB
Database Design
Query Optimization

04Frontend

React
Next.js
Redux / RTK Query
Zustand
Tailwind CSS

05Architecture

MVC Architecture
Microservices (Basic)
Scalable Backend Systems

06Cloud & Production

AWS (EC2, S3)
Linux
Nginx
PM2
Production Deployment

07Development Tools

Git
GitHub
Postman
Docker

Beyond the code

About

I started in e-commerce — building and running a retail platform end-to-end on the MERN stack at Mitali International — then moved into fintech at Core Devs, where I architect backend services for production-scale applications: trading engines, payment integrations, and event-driven workers.

I care more about consistency than intensity: showing up, communicating clearly, and building systems that survive contact with production. I'd rather ship boring, reliable engineering than clever one-offs — and I treat AI-assisted development as a serious part of the craft: leverage, applied with judgment.

Longer term, I'm working toward staff-level scope — deeper distributed-systems work, products that serve millions of users, and mentoring engineers earlier in their careers.

Away from the keyboard: photography, travel, a steady fitness routine, and a near-constant supply of good coffee.

Currently: Software Engineer at Core Devs Ltd., Dhaka
Education: B.Sc. in Computer Science & Engineering, North Western University (2022) — CGPA 3.69/4.00
Learning: AWS Cloud Solutions Architect (Coursera, in progress) · Mastering NestJS (completed)
Focus: Distributed systems · payments · real-time infrastructure

Get in touch

Let's build something reliable

I'm open to backend-heavy roles, consulting, and interesting systems problems. Email is the fastest way to reach me.

smashraful.dev@gmail.com

GitHub@smashraful LinkedInin/smashraful WhatsApp+880 1913 130455

Prefer the terminal? Grab my résumé as JSON:

curl developerash.vercel.app/api/resume