NAZMUL

Senior Software Engineer

Nazmul Hosen

I build scalable SaaS, ERP, OTA, and eCommerce solutions that solve complex business problems through reliable software and AI-powered integrations.

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Nazmul Hosen, Senior Software Engineer
Selected Systems_

Enterprise Travel ERP

— Lead Software Engineer

Architected and led development of a multi-tenant travel ERP for B2B agencies, covering flight booking, invoicing, accounting, reporting, agency management, and operational workflows.

Scale: Designed for multi-branch operations with real-time booking, financial, and inventory workflows.

Node.jsTypeScriptReact.jsMySQLRedisDockerAWS
Case Study

Naria Holidays

— Senior Software Engineer

Built and enhanced a full-stack travel booking platform supporting flights, hotels, tours, Hajj, Umrah, visas, and holiday packages with scalable APIs and optimized booking workflows.

Scale: Built for end-to-end travel booking operations with Redis caching and optimized API performance.

Node.jsTypeScriptNestJSPrismaPostgreSQLRedisNext.js
Live

KRY International

— Backend Engineer

Developed backend services for an e-commerce platform covering product catalog, inventory, customer management, order processing, and API integrations.

Scale: Designed scalable REST APIs and data workflows for core e-commerce operations.

Node.jsTypeScriptExpress.jsMySQLRedis
Live
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Engineering Experience_
3 roles
Expertise & Education_
Technical foundation and academic background

Technical toolkit

Backend Engineering

  • Node.js
  • TypeScript
  • NestJS
  • Express.js
  • PostgreSQL
  • MySQL
  • Redis
  • REST APIs

System Architecture

  • System Design
  • SaaS Architecture
  • Multi-Tenant Systems
  • Microservices
  • Distributed Systems
  • Clean Architecture
  • API Design

Business Applications

  • Travel & OTA Platforms
  • ERP Systems
  • Booking Systems
  • E-commerce
  • B2B Platforms
  • Accounting Systems
  • Third-Party Integrations

Frontend Engineering

  • React.js
  • Next.js
  • TypeScript
  • Redux
  • Tailwind CSS

Cloud & DevOps

  • AWS
  • Docker
  • CI/CD
  • Nginx
  • Linux
  • GitHub Actions
  • PM2

Academic background

  1. 2018 — 2022

    B.Sc. in Computer Science & Engineering

    University of Dhaka, Dhaka, BD

    • CGPA 3.75 / 4.00
    • Thesis: Distributed Systems & Fault-Tolerance
About Myself_
A brief introduction

I’m a Software Engineer focused on building scalable web applications, SaaS platforms, ERP systems, OTAs, and AI-powered solutions. I specialize in Node.js, TypeScript, React, Next.js, PostgreSQL, and AWS, with a strong focus on clean architecture, performance, and real-world business solutions.

Current Focus

01

Building performant React applications at scale

02

Cloud-native architecture on AWS & Vercel

03

Exploring AI-powered product features

// What's next?

Get In Touch_

I’m currently open to remote leadership roles, core backend architecture challenges, or technical consulting.

nazmulhosen.dev@gmail.comLinkedIn ↗GitHub ↗Call ↗