Open to opportunities

Augustus Xavier Mallari

@augustusxaviermallar

Shopify Architect who delivers scalable Shopify Plus storefronts through advanced custom themes and performance optimization.

Philippines

Message

What I'm looking for

I’m looking to build and lead Shopify Plus storefront architecture—custom themes, app integrations, and performance optimization (Core Web Vitals/Lighthouse). I want to work with teams where I can define standards, unblock complex issues, and deliver conversion-focused e-commerce experiences.

I’m a results-driven Shopify specialist with 7+ years of experience developing custom themes, integrations, and high-performance e-commerce solutions. I define theme architecture, coding standards, and component patterns to help teams ship faster and more consistently.

In my most recent role, I architected scalable Shopify Plus storefronts using modular, reusable theme systems. I built advanced custom sections that enabled complex functionality and deep custom app integrations, while improving core web vitals and Lighthouse performance through targeted UI/UX and performance optimizations.

Earlier, I developed and maintained multiple custom legacy and Online Store 2.0 Shopify themes, integrating third-party apps and implementing custom cart, collection, and product behavior. I supported feature development and iterative improvements across multiple live storefronts, including section and template enhancements.

I’ve also led storefront development and technical execution as an e-commerce development manager, owning theme customization, feature delivery, and release cycles. I bring deep platform expertise from my background as a Shopify Guru/Trainer—supporting themes, apps, storefront behavior, and configuration, and acting as an escalation point for complex issues.

Experience

Work history, roles, and key accomplishments

Shopify Architect

Kasama Digital Inc.

Jun 2025 - Jan 2026 (7 months)

Architected scalable Shopify Plus storefronts using modular, reusable theme systems and defined theme architecture, coding standards, and component patterns. Built advanced custom sections and improved Core Web Vitals and Lighthouse performance through targeted UI/UX and performance optimizations.

Shopify Plus Theming Architecture Modular Reusable Theme System Coding Standards Sections Lighthouse UX Optimization

Shopify Web Developer

Green Tee Inc.

Oct 2021 - Oct 2025 (4 years)

Developed and maintained multiple custom legacy and Shopify Online Store 2.0 themes, delivering ongoing section and template enhancements. Integrated third-party apps and implemented custom cart, collection, and product behavior to support evolving business requirements across multiple live storefronts.

Shopify Online Store 2.0 Collection Behavior Product Behavior

Web Developer Consultant

Thexavvyape

Feb 2021 - Aug 2021 (6 months)

Architected custom sections and handled theme migrations across enterprise storefronts. Eliminated app dependencies and resolved complex performance conflicts.

Enterprise Storefronts Sections Theme Migrations App Dependency Reduction Performance Conflict Resolution

E-Commerce Development Manager

Dreamworths Holdings, Inc.

Feb 2020 - Feb 2021 (1 year)

Owned Shopify storefront development and technical execution, including theme customization, feature delivery, and release cycles. Drove storefront architecture, performance optimization, and third-party app integrations across brand sites.

Shopify Developer Release Cycles Storefront Architecture Performance Optimization Third Party Integrations Theme App Extensions Shopify Functions Git

Platform Support Specialist

Rustan’s Commercial Corporation

Jul 2019 - Dec 2019 (5 months)

Supported Shopify Plus storefront operations by handling advanced theme issues, app integrations, and storefront configuration. Troubleshot complex platform and performance issues in collaboration with internal teams and Shopify support.

Shopify Plus Platform Support Technical Support & Escalation