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Md
Kamruzzaman

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I'm a senior full-stack engineer with 9+ years building production-grade web applications for enterprise clients across the USA, Canada, EU and globally. My core stack is Laravel, Php, React, Next.js, and AWS, with deep expertise in ERP/CRM integrations, Shopify & BigCommerce Partner development, and SaaS architecture.

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KAM<developer />
about_me.ts

Crafting Digital Experiences

I'm a senior full-stack engineer with 9+ years building production-grade web applications for enterprise clients across the USA, Canada, EU and globally. My core stack is Laravel, Php, React, Next.js, and AWS, with deep expertise in ERP/CRM integrations, Shopify & BigCommerce Partner development, and SaaS architecture.

I've delivered complex projects for clients including Lamborghini, Drinkmate, Gradwear, Inhaven, Mom's Pantry and Bisect Hosting — from custom API platforms and multi-tenant SaaS to Shopify Plus apps and NetSuite/Salesforce integrations.

Currently based in Malaysia, working remotely as a Backend Laravel Developer for a US-based software company, Coalition Technologies. I collaborate with distributed teams across Europe and the United States. I’m also available for contract and freelance opportunities, particularly with teams in Ireland, the UK, and the US.

When I’m not coding, I explore new technologies, contribute to open source, and write about software engineering best practices. I also enjoy developing games and mobile applications for fun.

Available for new projects·San Francisco, CA - Remote
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Years Experience

0+

Projects Completed

0+

Happy Clients

0K+

GitHub Stars

tech_stack.json

Tools I Work With

A curated stack I rely on to build fast, scalable, and maintainable software — from prototype to production.

Backend

Laravel
PHP
Node.js
Django / Python
Ruby on Rails
REST API Design

Frontend

React
Next.js
TypeScript
VueJs
Tailwind CSS
Framer Motion

Database

MySQL
PostgreSQL
Firebase
MongoDB

DevOps & Tools

Docker
AWS
DigitalOcean
Git
Figma
CI/CD

Integrations

Shopify API
BigCommerce API
NetSuite ERP
Salesforce CRM
Monday / Celigo
Stripe / Payment APIs

AI & LLM Tools

ChatGPT / Codex
Claude / Claude Code
Cursor / GitHub Copilot
Gemini AI

Learning For Fun

Rust
Unity
C#
Java
Mobile App Development
Game Development
featured_projects[]

Things I've Built

A selection of projects I'm proud of — from open-source libraries to production SaaS products.

DrinkMate

Architected and delivered a custom middleware platform integrating Shopify, ShipStation, Salesforce, and logistics providers such as FedEx and UPS. Implemented scalable APIs and automated workflows to manage end-to-end sales, order fulfillment, and customer data synchronization. Developed a headless Shopify architecture, improving performance, flexibility, and integration capabilities across systems.

LaravelPHPReactMySQLShopify HeadlessNextJsAWSTailwind CSSSalesforceShipStationFedExUPSUSPSGraphQL

LN CURTIS

Architected and delivered a custom middleware platform integrating BigCommerce, NetSuite, Celigo, and Loop return. Implemented scalable APIs and automated workflows to manage end-to-end sales, order fulfillment, and customer data synchronization.

LaravelPHPReactMySQLBigCommerceBigCommerce APIGraphQLDigitalOceanNetSuiteCeligoLoopSalesforce

GradWear

Architected and delivered a custom App integrated with Shopify platform for college students to buy and sell used clothing, with a focus on sustainability and community building.

LaravelPHPVue.jsMySQLShopifyDigitalOceanTailwind CSSDesign LabREST APIGraphQL

Lamborghini

Architected and delivered a custom App integrated with Shopify platform for Lamborghini to sell car racing event tickets, manage dealer relationships, with a focus on luxury branding and seamless user experience.

LaravelPHPReactMySQLShopifyDigitalOceanSalesforceTailwind CSSREST APIGraphQL

InHaven

Architected and delivered a custom middleware platform integrating BigCommerce, NetSuite, Celigo, Salesforce and Monday.com. Implemented scalable APIs and automated workflows to manage end-to-end sales, order fulfillment, and customer data synchronization.

LaravelPHPReactMySQLBigCommerceBigCommerce APIGraphQLDigitalOceanNetSuiteCeligoMonday.comSalesforce

Mom's Pantry

Architected and delivered a custom middleware platform integrating Shopify, ShipStation, Salesforce, and logistics providers such as FedEx and UPS. Implemented scalable APIs and automated workflows to manage end-to-end sales, order fulfillment, and customer data synchronization. Developed a headless Shopify architecture, improving performance, flexibility, and integration capabilities across systems.

LaravelPHPReactMySQLShopify HeadlessNextJsAWSTailwind CSSSalesforceShipStationFedExUPSUSPSGraphQL
work_history.json

Where I've Worked

My professional journey — building production-grade products, leading teams, and growing as an engineer across two continents.

2022

Backend Developer

Coalition Technologies

2022 — PresentUSA · Remote
Coalition Technologies is a leading US-based digital agency delivering web development, SEO, and e-commerce solutions to enterprise clients worldwide.
  • Delivered 30+ full-cycle web and e-commerce projects for clients including Lamborghini, Drinkmate, Gradwear, Inhaven, Mom's Pantry and Bisect Hosting achieving on-time delivery rates above 95%.
  • Architected and launched 35+ custom Shopify and BigCommerce applications, with 2 published on public marketplaces — driving recurring revenue streams for client businesses.
  • Engineered complex ERP/CRM integrations (NetSuite, Salesforce, Celigo) that reduced manual data processing time by an estimated 40% for multiple enterprise clients.
  • Led cloud infrastructure setup and ongoing maintenance on AWS (EC2, S3, RDS) and DigitalOcean for 30+ production environments, ensuring 99.9% uptime SLAs.
  • Collaborated directly with the Sales team on pre-sales calls and project scoping, producing technical proposals that converted at a higher-than-average rate.
  • Conducted regular client-facing meetings, translating complex technical progress into clear business updates and proactively managing expectations.
2016

Senior Full-Stack Developer & Team Lead

CoderHand

2016 — 2022On-site · Full Time
  • Mentored a team of 4 junior developers in deployment practices, server management, system architecture, and client communication — reducing onboarding time by 30%.
  • Built bespoke Laravel-based web platforms for SME and enterprise clients across e-commerce, SaaS, and internal tooling verticals.
  • Developed React and Vue.js front-ends integrated with RESTful APIs, improving page performance and reducing load times by up to 50%.
  • Managed complete project lifecycles — from client discovery workshops and wireframing through to deployment and post-launch support.
  • Integrated third-party services including payment gateways, shipping APIs, and CRM platforms, expanding client system capabilities with minimal disruption.
  • Maintained PostgreSQL and MySQL databases for high-traffic applications, implementing query optimisation strategies that improved performance by 35%.
client_reviews[]

What Clients Say

Honest words from people I've had the pleasure of working with.

“Kam created two websites for me — my business website and my personal website. The websites look great and are highly visible. His response time and turnaround time was incredibly quick. He is always available to help out with technical queries and he empowers me to work on my own website as well. And he's such a nice guy! Highly recommended!”

Dalit Kaplan

Director

Just World Group · Storywell

“Kamruzzaman was an excellent help for two of my websites. He showed great knowledge of any issues that we faced and was able to handle any questions I had. His work ethic is also excellent and gets work done very quickly when needed. I enjoyed working with Kam and I plan on continuing our work relationship into the future.”

Rodney Janover

Founder

Hellomello™

View more on LinkedIn
faq.json

Common Questions

Everything you need to know about working with me — answered directly.

contact.ts

Let's Build Something Great

Whether you have a project in mind, want to collaborate, or just want to say hello — my inbox is always open. I'll get back to you within 24 hours.

Location

San Francisco, CA - Remote

Availability

Open to opportunities

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