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Data-Driven Ecommerce Growth

Ecommerce Portfolio

Design process

Digital Transformation

Managed end-to-end Shopify store operations and continuous improvement for data flow, UX/UI, SEO, external API

Enterprise System Migration

Managed the end-to-end data migration from legacy ERP and Magento to Shopify via API. Architected critical data flows, engineered custom metafields to bridge mismatched system fields, and successfully orchestrated a complex blended B2B/B2C store environment while aligning competing priorities across internal management, IT developers, and external vendors

1

Data Mapping & Automation

Overcame native integration constraints where raw ERP payloads were pushed via API into isolated Shopify Plus metafields and left disconnected from storefront logic. Engineered a touchless automation layer using Shopify Flow to listen for product updates and company registration hooks. Implemented custom logic scripts to parse the payload, executing live GraphQL Admin API mutations to dynamically bind group pricing tiers, minimums, and automated catalogs to B2B profiles.

2

CRM & Lifecycle Marketing

Directed the end-to-end email marketing strategy across Klaviyo and MailChimp, driving customer retention and lifecycle growth. Utilised Python and SQL to build predictive clustering models, dynamically segmenting B2B and B2C audiences for hyper-personalised campaigns. Optimised email architecture, integrated UTM tracking, and architected automated win-back workflows, successfully doubling engagement metrics while strictly maintaining high sender reputation benchmarks.

3

SEO Optimisation

Optimised the front-end user experience by engineering logical site architecture, categorise products by cluster modelling, standardising menu navigation hierarchies, and establishing strict SEO structures. Set rigorous quality acceptance benchmarks and resolved complex UX/UI bugs to ensure seamless multi-platform functionality and accurate B2B/B2C catalog filtering.

4

Root Cause Analysis & User Acceptance Testing

Debug critical data-sync errors, and conduct rigorous QA testing. Successfully identified logical blind spots and implemented robust backup checks to prevent large-scale data overwrite loops and inventory sync failures.

5

Continuous UI/UX Refinement & CRO

Led continuous Conversion Rate Optimization (CRO) and dynamic merchandising across the Shopify storefront. Executed customed front-end UI/UX refinements, including restructuring promotional content blocks and resolving checkout friction points. Configured dynamic rendering logic for product availability, such as converting standard "Out of Stock" states into conditional "Stock Incoming" calls-to-action for seasonal new arrivals, effectively preserving customer purchasing intent.

6

Digital Marketing

Marketing Campaigns

Performance Marketing

Campaign Analytics

Data Visualisation

A/B Testing

Lead Generation

Customer Segmentation

New Car Model - Lead Generation - SKODA

Campaign Strategy

A 3-month multi-phase Meta Ads campaign designed to drive high-intent test-drive bookings for the Skoda SUV lineup (Kodiaq and Karoq). The creative approach combined premium lifestyle imagery with strong financial hooks including a 20M VND cash discount and a 3-year warranty to capture local demand.

Ad Formats & Execution

Deployed swipeable Carousel and Collection ad formats to clearly segment separate value propositions. Ad traffic was funneled to a comprehensive, custom-built landing page detailing all promotional offers and vehicle specifications, optimized for seamless, high-converting lead capture.

Total Impressions

287,452

Link Clicked

7,125

CTR

2.47%

Landing Page Leads

176

Real Estate - Luxury Property Campaigns - The Invest Real Estate

Campaign Overview

Targeted Meta Ads lead-generation campaign for NovaWorld Phan Thiet, utilising dynamic creative testing (lifestyle vs. investment angles) to drive high-net-worth prospects to exclusive landing page visits and talk show bookings.

Healthcare - Maternity Package Campaign - TTH Hospital Vinh

Campaign Overview

Executed the maternity promotion a 1-month integrated campaign offering discounted delivery and pain-relief packages to drive hotline bookings. Combined paid Meta Ads, Zalo push, and a citywide OOH rollout across 20+ digital screens in 4 aspect ratios to reach expecting mothers across local area.

Total Reach

120k+

Cost Per Booking

$8.30

CTR

1.84%

(above healthcare benchmark)

Hotline
Inquiries

204

Digital Marketing

Email & Lifecycle

MailChimp

Klaviyo

Automated Lifecycle Flows

Customer Segment

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Email screenshot preview
Email screenshot preview
Email screenshot preview
Email screenshot preview
Email screenshot preview

Delivery Performance

Total Send

200,000+

AVG Open Rate

x1.28

Above Industry Benchmark

Click Rate

x3.9

Above Industry Benchmark

Click-Through Rate

x4.7

Above Industry Benchmark

Delivery Rate

99.5%

Healthy Compared to
Industry Benchmark

Bounce Rate

0.5%

Healthy Compared to
Ịndustry Benchmark

Unsubscribe Rate

x0.38

Below Industry Benchmark

Spam Complaint Rate

0.00%

Below Industry Benchmark

Sender Reputation

Maintained high for the last 6 months

Lifecycle Automation

Abandoned Cart

New Arrivals

Back in Stock

Welcome Series

Disclaimer: To protect client confidentiality, all figures and data presented in this dashboard have been modified/anonymized and do not represent actual company performance.

Shopify

Web Design & Artwork

Crafted the visual identity of All Seasons Homeware's new Shopify storefront by designing engaging digital banners, intuitive UI layouts, and high-quality lifestyle photography to elevate the brand's digital aesthetic.

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Available For Work

Bridging complex backend data with seamless, high-converting frontend design.

harrynguyen.workmail@gmail.com

harrynguyen.com.au

Available For Work

Bridging complex backend data with seamless, high-converting frontend design.

harrynguyen.workmail@gmail.com

harrynguyen.com.au

Available For Work

Bridging complex backend data with seamless, high-converting frontend design.

harrynguyen.workmail@gmail.com

harrynguyen.com.au