ArfeenÂ
Karachi, Sindh, Pakistan
Summary
👤
SeniorMuhammad Arfeen is a Head of Product Engineering with 11 years of experience building payment gateways, APIs, and backend services from Karachi, Pakistan. He leads engineering teams at PayFast, blending hands-on development and technical leadership to deliver payment, onboarding, settlement, and fraud-resolution products integrated with local and international schemes like PayPak, Visa, MasterCard, and UPI. His background spans web architecture, REST API design, invoicing and merchant-facing platforms, and deep familiarity with integrations across banks, gateways, and shopping carts. Prior roles as senior principal and principal engineer sharpened his expertise in PHP backends, database design and optimization, and payment processor systems. He pairs engineering best practices with compliance and InfoSec guidance, often acting as a tech lead who codes alongside his team. A practical problem-solver, he frequently bridges product, infrastructure and business teams to design new payment services that meet regulatory and operational constraints.
12 years of coding experience
Stackoverflow
2,623reputation
552kreached
71answers
45questions
php
top-5%
Github Skills (41)
yii10
php-framework10
php10
session-store8
elasticsearch6
apple-push-notifications6
jquery6
voting6
entities6
facebook6
twitter6
image6
timesheet5
billing5
payment-gateway4
Programming languages (6)
Github contributions (5)
arfeen/the_photo_post
Oct 2017 - Nov 2020
A sample project for the developers who are starting Ruby on Rails
Contributions:5 PRs, 12 pushes, 2 branches in 3 years 1 month
ruby-on-railsrailsruby-onruby
apps-payfast/example-code
Jun 2020 - Feb 2022
Contributions:3 PRs, 7 pushes, 1 branch in 1 year 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.