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Arifur Rahman Zerin, software builder and technology optimist.

Software Engineer with 18+ years of experience across PHP, CodeIgniter, Laravel, server management, mobile app development, office operations, and SEO. Entrepreneur, technology optimist, and builder of practical software products.

AI, Product Engineering & Delivery

AI, Product Engineering & Delivery

Building practical systems across software, automation, infrastructure, and applied AI.

CodeIgniter, Laravel, Flutter

CodeIgniter, Laravel, Flutter

From backend architecture to product launch, with strong execution across web and mobile.

Entrepreneurship with Technical Depth

Entrepreneurship with Technical Depth

Leading teams, shaping products, and delivering systems that solve real business problems.

Personal Details
Current Role
Tech Guy + AI / Machine Learning Specialist + Entrepreneur
Entrepreneur, Technology Optimist and Software Engineer
Base
Dhaka
Focus
AI + Product Engineering
About
Software Engineer with 18+ years of experience across PHP, CodeIgniter, Laravel, server management, mobile app development, office operations, and SEO. Entrepreneur, technology optimist, and builder of practical software products.
Education History
2023 - 2024
MSc. in Artificial Intelligence
London Metropolitan University, United Kingdom
1999 - 2004
BSc. in Computer Science & Engineering
Asian University of Bangladesh, Dhaka
Experience Timeline
2024
Computer Vision Research Assistant
London Metropolitan University
  • Worked on a research project from May 2024 to July 2024.
2011 - 2021
CTO + Software Engineer
CloudNet360 Inc. - Chicago, USA
  • Worked with distributed teams across the USA, India, Philippines, and Bangladesh.
  • Developed optimized modules and product systems.
2011 - 2021
CEO
Premium Web Cart - Dhaka, Bangladesh
  • Managed teams to sell software and deliver corporate web/software solutions for the Bangladesh market.
Core Skills
Python 85%
DevOps 70%
PHP 100%
CodeIgniter 100%
Laravel 90%
AWS 75%
Lambda 80%
Service Area

DevOps Integration

CI/CD pipelines, deployment workflows, infrastructure automation, and operational reliability for modern software teams.

Product Development

End-to-end product delivery across backend systems, web applications, mobile apps, and practical AI-enabled features.

Product Management

Roadmaps, feature planning, delivery coordination, stakeholder alignment, and outcome-focused execution.

Server / Cloud Server Management

Linux administration, cloud hosting, performance tuning, monitoring, backups, and security hardening.

Innovation Lab
Visionary Apps
Currently Exploring
Technology Stack
Laravel Laravel
AWS AWS
CodeIgniter CodeIgniter
RabbitMQ RabbitMQ
Laravel Laravel
AWS AWS
CodeIgniter CodeIgniter
RabbitMQ RabbitMQ
My Favourite Architecture
Microservices Architecture: Build Systems as Independent Services

Microservices Architecture: Build Systems as Independent Services

Small, loosely coupled services that scale and evolve independently

PyTorch vs TensorFlow: Architecture & Workflow Comparison

PyTorch vs TensorFlow: Architecture & Workflow Comparison

Dynamic vs static execution—choosing the right framework for research and production AI

AWS Well-Architected Framework: The 6 Pillars of Cloud Excellence

AWS Well-Architected Framework: The 6 Pillars of Cloud Excellence

Build secure, reliable, efficient, sustainable, cost-optimized, and high-performing systems on Amazon Web Services

Transformers & Attention: Teaching Models Where to Focus

Transformers & Attention: Teaching Models Where to Focus

Transformers revolutionized deep learning by replacing sequential processing with the Attention Mechanism, allowing models to weigh the importance of different input elements simultaneously. Introduced in the landmark paper Attention Is All You Need, this architecture enables parallel computation, captures long-range dependencies efficiently, and powers modern breakthroughs in NLP and beyond. Today, transformer-based models form the backbone of systems like BERT and GPT, driving applications from translation to generative AI.

Modular Monolith

Modular Monolith

A modular monolith is a software architecture that combines the simple deployment of a traditional monolith with the organized, loosely coupled structure of microservices. It acts as a single, unified codebase and deployment unit, while internally separating code into domain-specific, independent modules with clear interfaces (e.g., in systems like Shopify or GitHub).

Event-Driven Architecture

Event-Driven Architecture

Useful for workflows involving background jobs, notifications, integrations, async processing, and reliable cross-system communication.

Knowledges & Focus
RAG Agents GenAI Applications Prompt Engineering Artificial Intelligence Machine Learning Product Engineering CodeIgniter Laravel AWS
Quote & Mindset
Learning matters most when it turns into shipped software, better decisions, and practical value for real users.
A.R. Zerin
Selected Projects
Work & Contact
Get In Touch
Share your basic details and the form will send an email directly to a.r.zerin@gmail.com.
Image Gallery
A visual gallery section for showcasing product, engineering, startup, and collaboration moments.
Technical Resources
A quick reference list of strong technical blogs and engineering sites worth following.
Site Category URL
3Blue1Brown: Neural Networks (Ch. 1–2). Visual, intuition-first walkthrough of neurons, weights, and gradient descent/backprop basics. Deep Learning - Neural Network Neural networks
Laravel News Laravel / PHP https://laravel-news.com
AWS Architecture Blog Cloud / AWS https://aws.amazon.com/blogs/architecture/
Martin Fowler Architecture https://martinfowler.com
InfoQ Engineering https://www.infoq.com