HAFIZ

HafizHafizur Rahman/Web Developer

I build software that makes complex businesses simpler.

I build reliable web applications, business software and SaaS products.

PHP · Laravel · MySQL · React · Next.js · Shopify · POS · E-commerce Integration · APIs · SaaS

Based in Dhaka, Bangladesh · Working worldwide

01About

Engineering that holds up in production.

Hafizur Rahman, Web Developer

I'm Hafiz, a web developer focused on building practical software for real businesses.

My work sits at the intersection of engineering and product thinking. I work primarily with PHP, Laravel and MySQL, with React and Next.js on the front end, and have built business applications, POS systems, SaaS products, e-commerce integrations and API-driven systems.

I care about software that is understandable, maintainable and useful — not just software that works in a demo.

What I do

  • Web Applications
  • SaaS Products
  • Business Software
  • POS & Inventory Systems
  • API Integrations
  • E-commerce Integrations
  • Technical Product Development

02Selected Work

Systems that run real businesses.

01

coreSTORE

Multi-tenant POS & inventory SaaS

A point-of-sale and inventory platform built to serve many businesses from one codebase — tenant isolation, stock movement, register workflows and sales channels kept in sync.

  • Multi-tenancy
  • Inventory management
  • POS workflows
  • Channel integrations
  • E-commerce synchronisation
Role
Senior Web Developer
Category
SaaS · POS
Stack
CodeIgniter, PHP, MySQL

02

Shopify Integrations

Keeping business systems and storefronts in step

Connecting back-office systems to Shopify so products, inventory and orders stay consistent without anyone re-typing them — built on the Admin API, GraphQL and webhooks.

  • Product synchronisation
  • Inventory synchronisation
  • Webhook pipelines
  • Custom applications
Role
Web Developer
Category
E-commerce · API Integration
Stack
Shopify Admin API, GraphQL, PHP

03

WooCommerce Integration

Stores and stock, kept in agreement

Connecting WooCommerce storefronts to back-office systems so products, stock levels and orders move both ways without manual re-entry, over the REST API and webhooks.

  • Product synchronisation
  • Inventory synchronisation
  • Order synchronisation
  • Webhook pipelines
Role
Web Developer
Category
E-commerce · API Integration
Stack
WooCommerce REST API, PHP, MySQL

04

BigCommerce Integration

Catalogue and inventory across channels

Wiring BigCommerce catalogues and orders into inventory and POS systems, so stock and pricing stay consistent wherever a customer buys.

  • Catalogue synchronisation
  • Inventory synchronisation
  • Order synchronisation
  • Multi-channel stock
Role
Web Developer
Category
E-commerce · API Integration
Stack
BigCommerce API, PHP, MySQL

05

Core Banking & Financial Systems

Business software that talks to the bank

Integrating business systems with core banking and financial platforms — payment flows, transaction records and reconciliation moving over secure APIs instead of spreadsheets.

  • Payment flows
  • Transaction records
  • Reconciliation
  • Secure API access
Role
Web Developer
Category
Financial Systems · API Integration
Stack
PHP, MySQL, REST APIs

03Expertise

Where the work actually happens.

  1. 01Backend Engineering
  2. 02SaaS Architecture
  3. 03Business Applications
  4. 04API Development
  5. 05E-commerce Integrations
  6. 06Database Design
  7. 07Technical Product Development

Technologies

PHP · Laravel · MySQL · JavaScript · TypeScript · React · Next.js · REST APIs · GraphQL · Shopify · WooCommerce · Git · GitHub

04Experience

Where I learned to ship.

  1. Jan 2022 — Present

    Remote

    Full-time

    Remote Job

    1. Senior Web Developer

      Senior web developer specialising in PHP, MySQL and Laravel. Building a POS solution and continuously extending it with new features and platform integrations — inventory management, e-commerce integration and reporting — supporting a large customer base.

  2. Aug 2015 — Dec 2021

    Dhaka, Bangladesh

    On-site

    NNS Solution Limited

    1. Senior Web Developer

      Jul 2019 — Dec 2021

      Led technical direction and mentored junior developers. Contributed to the architecture and implementation of complex web applications, worked with stakeholders to turn business requirements into scalable solutions, ran code reviews, and took part in project planning and estimation.

    2. Web Application Developer

      Jul 2017 — Jun 2019

      Designed and implemented web solutions in PHP, MySQL and CodeIgniter. Worked directly with clients to understand requirements and deliver customised solutions with efficient, scalable code.

    3. Junior Web Developer

      Jul 2016 — Jun 2017

      Built and maintained web applications alongside senior developers, enhancing functionality and optimising performance while developing proficiency in PHP, MySQL and Laravel.

    4. Trainee Web Developer

      Aug 2015 — Jun 2016

      First professional role. Developed web applications with the team using PHP, MySQL and CodeIgniter, helping implement features and troubleshoot issues.

Education

  1. 2021

    Jahangirnagar University

    Post Graduation, Information Technology

  2. 2015

    IDB-BISEW

    Diploma, Web Presence Solution and Implementation (WPSI) · Web Application Development

05Approach

I care about the boring things that make software last.

  1. 01

    Build for the real world

    Software should survive real users, real data and real business constraints.

  2. 02

    Keep complexity under control

    Prefer simple architecture that a future developer can understand.

  3. 03

    Product thinking matters

    Good software solves the right problem, not just the requested ticket.

  4. 04

    Ship, measure, improve

    Build a useful version, learn from it, then make it better.

06 — Contact

Let’s build something useful.

Have a problem worth solving? Tell me what it is and how it should work.