dan
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Mamdouh “Dan” Aly — Shopify × AI · Cairo
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Storefronts
that sell
harder.

Cairo, EG
Spring 2026
Front-End × AI
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Shopify DevelopmentPerformance EngineeringUpsell & Cross-Sell SystemsCore Web VitalsLiquid · JS · APIsHeadless CommerceConversion UX Shopify DevelopmentPerformance EngineeringUpsell & Cross-Sell SystemsCore Web VitalsLiquid · JS · APIsHeadless CommerceConversion UX
01 — Profile

I’m Mamdouh — most people call me Dan. I engineer Shopify storefronts that are fast, conversion-obsessed and built to scale. I think in funnels, write clean Liquid & JavaScript, and treat every millisecond like it owes the business money.

0
Years front-end
0
Years on Shopify
0
Global brands
Perf obsession
✦ — AI Product Photography

From a phone photo to a studio campaign.

Brands send me a product — flat-laid on a table or worn at home. I art-direct an AI pipeline that places it on a professional model, in a real location, lit like a campaign. Delivered in under 24 hours — with a high-end team and zero studio, model casting or lighting cost. Drag the slider to see the leap.

<24hTurnaround
0Studio · models · lighting
Looks · locations · models
100%Your product, kept true
01.5 — Live metrics

This page, measured live.

Real Core Web Vitals captured in your browser, right now — because a performance engineer’s site should prove it.
score
Performance
Lighthouse-style
LCP
Largest Paint
Target < 2.5s
CLS
Layout Shift
Target < 0.1
Page loaded
First paint
Transferred
Requests
02 — Selected builds

Stores I’ve engineered.

Alo Yoga storefront7 shots
B—01 · Alo Yoga

Cross-sell & Complete-the-Look engine

Ecommerce · Egypt · Shopify · Liquid · JS
View gallery →
Volcom Spain storefront9 shots
B—02 · Volcom Spain

Collection + PDP, Klarna & Get-the-Fit

Ecommerce · Spain · Shopify · UX
View gallery →
Oshoplin storefront5 shots
B—03 · Oshoplin

CK-inspired multi-brand storefront

Multi-brand · Egypt · Filters · Grid
View gallery →
03 — Featured case

A high-performance upsell & cross-sell system.

RoleShopify Front-End Developer
SurfaceCart · Popups · UX
ConstraintZero performance cost

// scope

  • Upsell system development
  • Cart-page upsell features
  • Custom popup systems
  • UX-focused enhancements

// built

  • Upsell sections wired into cart logic
  • Dynamic offers from cart contents
  • High-performance popups, no load hit
  • Performance-safe DOM manipulation

// tech

  • Shopify Liquid customization
  • JavaScript-driven upsell logic
  • Optimized, lazy asset loading
  • Zero render-blocking behavior
Higher AOV
Contextual upsells on cart
More engagement
Frictionless cart interaction
Zero compromise
Premium feel, full speed
04 — Capabilities

Three modules. Zero distractions.

04 / 01

Shopify Development

Custom themes · Liquid

Custom theme development with advanced Liquid, JavaScript and storefront logic — features built precisely to brand & business needs.

  • Custom theme architecture
  • Advanced Liquid & JS
  • Shopify APIs
04 / 02

Performance Optimization

Core Web Vitals · Audits

Core Web Vitals optimization, speed audits and fixes, JS & asset optimization — conversion-focused improvements that make stores feel instant.

  • Speed audits & fixes
  • Asset & JS optimization
  • CWV tuning
04 / 03

Experience Engineering

Upsell · Cart · UX

Upsell & cross-sell systems, cart & checkout optimization, custom popups and engagement logic — seamless UX for high-traffic stores.

  • Upsell & cross-sell
  • Cart & checkout
  • Engagement logic
05 — Stack

The technical manifest.

// core

Shopify EXPERT
Liquid EXPERT
JavaScript ES6+ ADVANCED
HTML5 / CSS3 EXPERT
Shopify APIs ADVANCED

// specialization

Performance Eng. FOCUS
Ecommerce UX Logic FOCUS
Upsell / Conversion FOCUS
High-traffic stores FOCUS
Theme Optimization FOCUS

// also

React PROFICIENT
Headless / Hydrogen PROFICIENT
Core Web Vitals ADVANCED
Cart & Checkout ADVANCED
A/B & CRO PRACTICAL
06 — Trusted by

Brands I’ve engineered for.

The BraderyVestiaire CollectivePier 1The Giving MovementdressbarnKOIMason’sSkechers The BraderyVestiaire CollectivePier 1The Giving MovementdressbarnKOIMason’sSkechers
Cole HaanVolcomANTAeccoumbroaloOshoplinCizaro Cole HaanVolcomANTAeccoumbroaloOshoplinCizaro
07 — About

Mamdouh Aly — aka Dan.

9+ years in front-end. 8 years deep in Shopify. I’ve built ecommerce experiences for brands across Egypt, the US, UK and Spain — from Alo Yoga’s cross-sell engine to Volcom’s full collection & product pages, and Oshoplin’s multi-brand store.

I’ve engineered storefronts alongside global names — Cole Haan, Vestiaire Collective, Pier 1, The Bradery, The Giving Movement, KOI, dressbarn, Mason’s — plus Skechers, ECCO, Umbro and ANTA. I think in conversion funnels, build in clean code, and ship stores that turn browsers into buyers.

ShopifyLiquidPerformanceReactHeadlessCRO
Mamdouh Aly — Dan
lat 30.0444 · lng 31.2357 · CAIRO, EG
dan@portfolio:~$ ./start-a-build.sh

Let’s build something
that ships.

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