The tools are everyone's. The judgment isn't.

Item: FlexSync
Rating: 5
Author: lizfrydesign

Software Engineer. Anyone can ship the feature. Keeping it alive at scale, in production, through the edge case no one saw, is the judgment. That is the half I own.

View work → Get in touch

500+ active merchants · 4.2M+ webhook events · 6+ years shipping

the part that matters

Merchants remember the support.

Anyone can ship a feature list. What I want the work to carry is this: when a merchant hits an edge case that isn't even ours to fix, we stay on it until it's solved — and they come back and write my name in the review.

4 of 5 name me directly.

Great support from Kazi, helped me with my metafield SYNC :)

La Hidalgo 5-star review · Shopify App Store · Mexico ↗

Names me

Great support builds great products. 💚 Huge thanks to "La Hidalgo" for the kind words, and a big shoutout to our very own "Kazi" for delivering prompt, reliable support.

FlexSync for Shopify Team shout-out · LinkedIn ↗

Names me

5 stars and special mentio to Kazi. thank you sir!

Merchant support ticket In-app support · Gleap

Names me

Thanks Team for the support 🎉 Thanks @Badrul Alam vai

Azizul Haque Team shout-out · WPPOOL

Super helpful app and passionate, supportive developers. They really spent time trying to solve an issue for me when they didn't have to! Thanks so much!

lizfrydesign 5-star review · Shopify App Store ↗

The receipts —

Built for Shopify Shopify's highest quality tier 4.7 / 5.0 across 15 App Store reviews Check it on the App Store

FlexSync: Google Sheets Sync on the Shopify App Store — 4.7-star overall rating across 15 reviews, with a 5-star review from La Hidalgo (Mexico) reading 'Great support from Kazi, helped me with my metafield SYNC :)' — Merchants leave 5★ reviews that name me directly — live on the App Store.

selected work

The one I'd show you first

Six years of shipping, and this is the project that carries the most weight — built alone, running in production, judged daily by people paying for it.

FlexSync

Built for Shopify 2023 — Present

Bidirectional real-time sync between Shopify and Google Sheets.

Sole engineer · WPPOOL

500+: active merchants
4.2M+: webhook delivery events
4.7 / 5.0: across 15 App Store reviews

Merchants export products, variants, and inventory into a Google Sheet, bulk-edit them where they already work, and every change pushes back to Shopify automatically — a serialized bulk-operation queue and buffered webhooks keep the two systems from ever drifting apart.

LaravelReactTypeScriptMySQLRedisShopify GraphQLGoogle Sheets APINginxCloudflare

Read the case study → Shopify App Store ↗

about

Self-taught, build-first

Software Engineer at WPPOOL with 6+ years shipping production systems across e-commerce, sync tooling, and browser extensions. Self-taught from a non-CS background — I learn by building.

My work lives at the seams between platforms: Shopify ↔ Google Sheets, browsers ↔ cloud storage, marketplaces ↔ dropshipping backends. I care about queue architecture, API rate limits, and shaving latency off the hot path.

Languages

PHPJavaScriptTypeScriptSQL

Frameworks

LaravelReactFilamentPHPCodeIgniter

Platforms

Shopify App DevChrome ExtensionsWordPressCloudflare Workers

Data

MySQLRedisGraphQL

Infra

DockerAWS LambdaEventBridgeGit

career

Where I've worked

WPPOOL · Software Engineer Aug 2023 — Present

Dhaka, Bangladesh · Remote

Architected and shipped FlexSync, a bidirectional Shopify ↔ Google Sheets sync engine — 500+ active merchants, 4.7/5.0 across 15 App Store reviews, Built for Shopify status.
Scaled the webhook infrastructure to 4.2M+ delivery events by tuning Laravel queue workers, PHP-FPM pools, Nginx, and MySQL indexing.
Cut sync latency 60% with buffered webhook processing and Redis-backed job batching.
Took Hoodsly Connector from private to published on the Shopify App Store — owned the review cycle as primary contact, secured approval to bill outside Shopify Billing, and cleared the product-sourcing requirements.
Built 30+ product configuration options past Shopify's native 3-option limit, plus a React theme app extension that cut merchant setup time 75%.
Shipped Clippy, a screen-recording Chrome extension on a FilamentPHP + Cloudflare Stream/Workers backend — 500+ recordings processed in beta.
Own the full stack in production — Laravel, React, MySQL, Redis, Shopify GraphQL API, Nginx, Cloudflare — including direct merchant support.

WPPOOL team Slack post celebrating Kazi Badrul Alam completing 3 years as a Software Engineer, with an anniversary card reading "3 year of joining the challenge" and 40+ reactions from the team — “Your dedication, ownership, and contributions as a Software Engineer have made a real impact over the years.” — the WPPOOL team channel, on my third year.

MoveOn · Software Engineer Nov 2021 — Jul 2023

Dhaka, Bangladesh

Built and maintained core features for the Ali2BD and MoveOn e-commerce platforms, including bulk order synchronization with third-party suppliers on Laravel queues and jobs.
Published the MoveUp Shopify app, wiring real-time webhook event processing through AWS EventBridge and Lambda.
Shipped the Ali2BD Assistant, automating order fulfillment from AliExpress and Amazon into the platform.
Built NPM packages for product-catalog scraping across Amazon, AliExpress, 1688, and Taobao, a Chrome extension for dropshipping workflows on WooCommerce and Shopify, and the Ali2BD Support Panel in React + Ant Design.

INI Lab · Software Developer Jul 2021 — Sep 2021

Dhaka, Bangladesh

Built a Learning Management System in Laravel with course management, role-based access, and student progress tracking.

Soft-Touch · Software Developer Mar 2020 — Mar 2021

Dhaka, Bangladesh

Built a digital newspaper (E-paper) publishing platform with Laravel and jQuery.
Extended and customized enterprise POS, news portal, and pharmacy management systems for client deployments.
Developed custom WordPress themes with Elementor.

Synchronise · Junior Developer Feb 2019 — Mar 2020

Chittagong, Bangladesh

Built an accounting management system and an SMS broadcasting platform using CodeIgniter.

writing

I write to think

I write to think — digging into the parts of PHP, Laravel, and the web that usually stay hidden. Some in English, some in Bangla for developers back home.

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Async PHP বুঝতে গিয়ে যা শিখলাম — Fibers, epoll, আর PHP 8.6

A sync-first PHP developer's dive into async: Fibers, the epoll event loop, and what PHP 8.6 changes. Written in Bangla for developers learning past the request-response model.

#php#async#fibers

Read on dev.to ↗

May 2025 · 45 min read

Comprehensive Software Engineering Technical Interview Guide

A long-form resource covering core software engineering concepts — from inheritance vs. composition to system design — built for interview prep.

#career#interview

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May 2025 · 7 min read

Laravel Guards: A Comprehensive Guide

A deep look at Laravel's authentication guards — how they work under the hood and when to reach for a custom one.

#laravel#auth

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Aug 2021 · 7 min read

How to Integrate PayPal Payment Gateway in Laravel

A practical, step-by-step walkthrough of wiring PayPal payments into a Laravel app.

#laravel#payments

Read on dev.to ↗

Aug 2021 · 2 min read

Lazy Loading & Lazy Collections in Laravel

When and why to reach for lazy collections to keep memory flat over large Eloquent result sets.

#laravel#performance

Read on dev.to ↗

Jan 2024 · 2 min read

Docker: RUN touch doesn't create the file

A short debugging note on a confusing Docker layer-caching gotcha.

#docker

Read on dev.to ↗

All posts on dev.to →

get in touch

Let's build something.

Open to freelance, full-time, and interesting collaborations. Fastest way to reach me is email or WhatsApp.

You have a project?