Software Developer · Shopify Specialist

Let's build the Shopify store you have in mind.

I build customisable themes and React apps for Shopify. I'm passionate about software development: always researching new technologies, and automation is the part I enjoy most.

  • Liquid
  • JavaScript ES6+
  • TypeScript
  • React
  • Next.js
  • PHP
  • Laravel
  • HTML5
  • CSS3
  • Tailwind CSS
  • Webpack
  • GraphQL
  • REST APIs
  • MySQL
  • PostgreSQL
  • Docker
  • Git

Profile

About Me

I'm passionate about software development, specialising in Shopify: customisable themes built on blocks and metafields, and React apps — Checkout UI Extensions, Theme App Extensions and Admin API integrations.

I came to Shopify from the backend. Before that I spent four years on Laravel: REST APIs, jobs, database modelling and the ERP modules running on top of them. That's still the base I work from, and it's what lets me drop into a store's server-side logic when it's needed.

What drives me is researching new technology, and automation is where I enjoy myself most: taking something a person does by hand every week and leaving it running on its own. Every project teaches me something, so I keep learning — that's the plan.

Pixel-art portrait of Nolberto Gonzalez against the mountains and coffee terraces of Colombia, with macaws in flight

2019 — today

Professional Track Record

  1. Web Developer

    Present

    Zero to One SAS

    Feb 2024 — Present2 years 7 months · Hybrid

    The Shopify ecosystem end to end: Figma designs turned into minified code with Webpack, custom sections built on metafields and a block-based architecture, and apps across Checkout UI Extensions, Theme App Extensions and Admin API integrations. I configure Skio with selling plans and custom journeys that handle product swaps on active subscriptions. I automate with Shopify Flow: low stock alerts, high-risk customer tagging and fraud notifications wired into Slack, Google Sheets and Klaviyo. I maintain the GA4 + GTM implementation until the purchase funnel reports clean data.

    • Shopify
    • Liquid
    • Checkout UI Extensions
    • Admin API
    • Webpack
    • GA4 · GTM
  2. Full Stack Developer

    Csmart

    Oct 2020 — Jan 20243 years 4 months · Hybrid

    Backend feature development in Laravel: routes, middleware, REST APIs and jobs for automated processes. Participation in system architecture and server-side logic to ensure efficiency and scalability. Key ERP modules: user management, payroll, internal activity dashboard, metrics, monthly reports and automated email dispatch.

    • Laravel
    • PHP
    • REST APIs
    • Jobs
    • ERP
  3. Backend Developer

    Netti Group SAS

    Dec 2019 — Sept 202010 months

    Complete system modules, implementing both the front-end interface and the back-end logic. Project architecture design, database modeling and a code structure oriented toward scalability and maintainability. Gathering and analysis of functional requirements, technical documentation and UML diagrams.

    • Database Design
    • UML
    • Requirements analysis

In production

Stores I've worked on

Six live Shopify stores I looked after end to end at Zero to One SAS: theme, sections, apps, integrations and automations. Screenshots taken from the public storefront on desktop.

Cases

Selected Work

A few projects where the default theme stopped being enough and something had to be built. If your store needs something similar, let's talk.

  • 2024 — 2026

    Custom sections and blocks

    RoleTheme architecture and Liquid development

    Sections built on a block architecture and metafields, with schemas designed so the content team can assemble a page without filing another code request. Figma to Liquid, minified through Webpack.

    • Liquid
    • Metafields
    • Schema JSON
    • Webpack
  • 2024 — 2026

    Custom Shopify apps

    RoleExtension and integration development

    Functionality the platform doesn't ship, written where it belongs: Checkout UI Extensions in checkout, Theme App Extensions in the theme, Admin API integrations for the rest — so the store keeps updating without anything breaking.

    • Checkout UI Extensions
    • Theme App Extensions
    • Admin API
    • React
  • 2024 — 2026

    Operations automation

    RoleWorkflow design and implementation

    Low stock alerts, high-risk customer tagging and fraud notifications, routed out of Shopify Flow into Slack, Google Sheets and Klaviyo. Work that used to be someone watching a dashboard.

    • Shopify Flow
    • Webhooks
    • Slack
    • Google Sheets
  • 2024 — 2026

    Subscriptions and lifecycle

    RoleIntegration and business logic

    Selling plans and journeys that handle product swaps on already-active subscriptions, plus Okendo wired in through both its UI and a custom API integration, so reviews, email and renewals all tell the same story.

    • Skio
    • Selling plans
    • Okendo API
    • Recharge
  • 2024 — 2026

    A clean GA4 purchase funnel

    RoleAnalytics implementation and debugging

    Duplicate events removed, currency conversion errors fixed, and custom reports tracking the full path: page_view → add_to_cart → begin_checkout → purchase. Data a decision can actually rest on.

    • GA4
    • GTM
    • Data Layer
    • JavaScript
  • 2020 — 2024

    Laravel ERP platform

    RoleBackend development and module architecture

    Core modules of a production ERP: user management, payroll, internal activity dashboard, metrics and monthly reports. Heavy processes moved onto jobs so the system stayed responsive under load.

    • Laravel
    • PHP
    • APIs REST
    • Jobs
    • MySQL

Toolkit

Stack & Expertise

Shopify

  • Liquid and custom sections
  • Checkout UI Extensions
  • Theme App Extensions
  • Admin API (REST · GraphQL)
  • Metafields and blocks
  • Shopify Flow

Frontend

  • React
  • JavaScript ES6+
  • HTML5 and CSS3
  • Webpack
  • Figma to code
  • WCAG 2.1 accessibility

Backend

  • Laravel and PHP
  • REST and GraphQL APIs
  • Jobs and automation
  • Database modelling
  • ERP systems

Performance & data

  • Core Web Vitals
  • WebP and AVC via ffmpeg
  • fetchpriority · preload · lazy
  • GA4 and GTM
  • Semantic SEO (JSON-LD)

Ecosystem

  • Klaviyo
  • Skio
  • Okendo
  • Recharge
  • Intelligems
  • Dropi · Finale Inventory

Education

Information Systems Analysis and Development

National Learning Service (SENA) · 2017 — 2019

  • CSS
  • PHP Frameworks
  • Systems Analysis

Contact

Tell me what you have in mind

Write to me and we'll talk it through, no strings attached. If I can help I'll tell you how — and if it isn't my thing I'll say so, and point you where to look.

Send a message

nolbertogonzalezc@gmail.com

Cali, Valle del Cauca · Colombia