Senior Software Engineer

Delowar Hossain

I build ERP systems and web applications across container shipping, healthcare, ISP, and e-commerce — specialized in Laravel, Vue, and Shopify, with strong cybersecurity and server-automation expertise.

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About me

I'm a full-stack developer with extensive experience building ERP systems across industries like container shipping, healthcare, ISP, and bulk carriers. I work on both frontend and backend with Laravel, Vue, and a little React, and bring skills in API development, IoT integration, and server deployment automation — including payment gateway integration and WebSocket-based push notifications.


Beyond development, I have strong cybersecurity expertise — reporting vulnerabilities and securing corporate systems. I contribute to open-source projects, have built Android apps and Chrome extensions for the Muslim community, and my reverse-engineering work focuses on data extraction and application security.


If you'd like to see more of my work, you can find me here:

GitHub
LinkedIn
Email

Work experience

Shopify App Developer
WPPOOL
February 2026 - Present

  • Developing and publishing multiple Shopify apps, including custom apps.
  • Built orders/create webhook validation to block fraudulent orders where prices are frontend-managed.
  • Implemented Cart Transform extensions for dynamic, server-trusted pricing.
  • Developed App Section blocks for theme integration.
  • Synced Shopify products with Expivi.

Technical Lead
Media365 Limited
June 2025 - January 2026

  • WinnSEO — Shopify App: designed the SaaS software architecture and defined system design with the DevOps team.
  • Owned project planning and task breakdown to meet deadlines; led 5 developers toward shared goals.
  • Reduced webhook failures from 48% → <1%.
  • Improved LCP from 5s → ~1s.

Senior Full Stack Developer
Magnetism Tech Limited
September 2021 - May 2025

  • Container Shipping ERP: EDI parser, RESTful APIs, Vue frontend, and Git-hook deployment automation.
  • Bulk Carrier ERP: Lead Developer of the Operation Module — RESTful APIs and Vue frontend.
  • ISP ERP: full stack (Laravel & Blade) with WebSocket push notifications.
  • Health Care: doctor booking, online video calling (Twilio SDK), and hospital management.
  • Fuel Filling ERP: RESTful APIs, Vue frontend, and IoT integration for fuel-inventory monitoring.
  • Garments ERP: Vue frontend.

Lead Frontend Developer
EasyFie
January 2021 - August 2021

  • Built templating for e-commerce, portfolio, blog, job-posting, and social-networking applications.

Full Stack Developer
Isratts Technology
September 2020 - January 2021

  • Hospital ERP: full stack (Laravel, Blade, and some Vue).
  • Machinery Trading ERP: full stack (Laravel & Blade).

Education

Master of Business Administration — Major in Supply Chain Management
University of Chittagong

Bachelor of Business Administration
University of Chittagong

Higher Secondary School Certificate — Science Group
Govt. City College, Chittagong

Skills

The core technologies and disciplines I work across day to day.

Laravel & PHP

Backend systems and ERP platforms built with Laravel, Blade, and CodeIgniter.

Vue & React

Frontend interfaces with Vue and React/Next.js, backed by Tailwind CSS and Bootstrap.

Shopify Apps

Public and custom Shopify apps — Cart Transform, section blocks, and webhooks.

API Development

RESTful and GraphQL APIs, plus WebSocket-based real-time push notifications.

IoT Integration

Connecting hardware to ERP systems, such as IoT fuel-inventory monitoring.

Cybersecurity

Vulnerability reporting, hardening against SQLi/XSS/brute-force, and reverse engineering.

Server & DevOps

Linux server management, AWS EC2, Docker, and CI/CD via AWS CodePipeline.

Databases

MySQL schema design and GraphQL data layers for production applications.

Agentic Development

AI-assisted workflows with Claude Code, Codex, and automation via n8n.

Open Source

Contributions merged into the tools I build with every day.

laravel/framework

Merged contributions to the core Laravel framework.

View merged PRs

nWidart/laravel-modules

Co-authored a merged contribution to the Laravel Modules package.

View merged PR

Selected projects

Freelance work spanning healthcare, payroll, retail, and creative tooling.

Health Care Portal

e-healthbd.com

Health Care Portal

Online doctor-consultation platform — appointment booking, a verified hospital/doctor directory, and a digital health card with partner discounts.

Laravel · Blade · MySQL

Visit site
Pilot Payroll System

Crystal Air Inc.

Pilot Payroll System

Payroll system for an aviation company — pilot pay computation, schedules, and payslip generation.

Laravel · Blade · MySQL

Visit site
Care Home Activities System

Magic Moments Activities

Care Home Activities System

Activity planning and tracking for care-home residents — scheduling, attendance, and engagement records.

CodeIgniter · jQuery · MySQL

Visit site
Marriage Media

El-7l · Egypt

Marriage Media

Islamic Arabic matrimonial platform — member profiles, advanced search filters, and built-in private chat.

Laravel · Blade · MySQL

Visit site
POS System

Feni E-mart Super Shop

POS System

Point-of-sale for a retail super shop — billing, inventory, and sales reporting.

Laravel · jQuery · MySQL

Visit site
Print on Demand

Konva.js Web App

Print on Demand

Browser-based design studio for custom products — live canvas editing and print-ready export built on Konva.js.

Konva.js · Vue · Laravel

Testimonials

What people I've worked with have to say.

" I highly recommend Mr. Delowar as a valuable team member. As a web developer, he demonstrates exceptional programming skills, particularly in PHP, Laravel, and Vue.js. His ability to solve complex problems is commendable, making him an asset to any project. Additionally, his proficiency in database management adds significant value to his technical expertise. I wish Mr. Delowar continued success in his endeavors. "

Hasan Md. Shahriare

Hasan Md. Shahriare

General Manager, Magnetism Tech Limited

" 5 stars across the board. Best freelancer I have ever hired — professional, friendly, and quick. Always efficient and thorough, and what I like best is that he's easy to work with. Will definitely rehire. "

Scott C.

Scott C.

Multiple projects · PHP, WordPress

" The project turned out to be quite a challenge and took longer than originally planned, but Delowar kept going until he made it work — and it turned out excellent! Easy to work with and great communication. Highly recommended! "

Andrew W.

Crystal Air Online

" The job was done ahead of schedule, very neat, and done right the first time. He did the work great and I would hire him again without hesitation. "

Robert F.

Multiple projects · Freelancer

" The job was done perfect and I'm lucky to have met Delowar — he is very clever in his work. I'll hire him again and again. "

Rami I.

El-7l

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AstroWind template in depth

While easy to get started, Astrowind is quite complex internally. This page provides documentation on some of the more intricate parts.