I build websites that sell.

Full stack developer and designer. Shopify Plus stores, WordPress sites and React apps that load fast, rank on Google and turn visitors into customers.

years building for the web, from agencies to product teams

Teams I build for

What I do for your business

Every project is built around one question: does it bring you more customers?

  • Shopify and Shopify Plus stores

    Custom themes and sections in Liquid, product data modeled with metaobjects and metafields, and A/B tests that show what actually lifts sales.

    LiquidShopify CLIMetaobjects
  • WordPress sites you can run yourself

    Fast, editable and SEO-ready. Your team updates content without calling a developer, and I train them to do it.

    WordPressElementorWebflow
  • React and Next.js web apps

    Dashboards, payment flows and product interfaces, designed in Figma and built with the same care as a shipped product.

    ReactNext.jsNode.jsGraphQL
  • Technical SEO, speed and QA

    Indexing, metadata, performance and end-to-end testing, so launch day is boring and Google can find you.

    SEOe2e testingSEMrush

Selected work

E-commerce, Shopify Plus
Valencia
Basket

Designed and built the official online store of the Spanish basketball club, with custom Shopify Plus templates and functions. Delivered through 3Dids, a Shopify Plus agency.

Shopify PlusLiquidSEO

A payment collection platform, from requirements to launch

I analyzed the requirements, defined the architecture and built the product in React and Material-UI.

crosspaysolutions.com
WordPress, publishing

A health publication kept fast and current

Ongoing development and performance work on medicinaysaludpublica.com, plus reporting on ad impressions and clicks.

medicinaysaludpublica.com

Why teams keep working with me

One person owns the result

You talk to the developer who also designs, tests and ships. Nothing gets lost between a designer, a coder and a tester.

Built to be found and to convert

SEO, page speed and testing are part of the build from day one, not something bolted on after launch.

Handed off cleanly

Documentation and training so your team can run the site without me, and a developer you can still call when you need one.

Experience

  • Dec 2024 - May 2026 Front-End UX/UI DeveloperBelvi Digital WordPress sites and React and Next.js interfaces for agency clients, plus e2e testing and technical documentation.
  • Aug 2025 - Present Full Stack DeveloperCrosspay Solutions Built the payment collection platform from requirements analysis to a working product in React and Material-UI.
  • Apr 2024 - Sep 2025 WebmasterEditorial Mundo Maintained and optimized WordPress publishing sites, and reported on ad impressions and clicks.
  • Sep 2024 - May 2025 Shopify and WordPress ConsultantFire Growth Agency Shopify (Liquid) and Elementor builds, QA, indexing and SEO, and client onboarding.
  • Aug - Oct 2024 Shopify Plus Developer3Dids Built the official Valencia Basket e-commerce site with custom Shopify Plus templates and functions.
  • Sep 2023 - Feb 2025 Front-End DeveloperTriagons Marketing sites in WordPress, React and Next.js, React Native apps, and QA on both.
  • Apr 2022 - Sep 2023 Shopify DeveloperBiiosmart Technologies Advanced Liquid sections with metaobjects and metafields for biotech stores, SEO and A/B testing.
  • Jan 2021 - Sep 2023 Full Stack DeveloperBeeFree Media · KIIRE Custom e-commerce, WordPress and React and Node builds, API integrations, SEO and email marketing.

Front-end

  • React, Next.js
  • JavaScript ES6+
  • Tailwind, Styled Components
  • React Native

Back-end

  • Node.js, PHP
  • Python, Django
  • MongoDB
  • GraphQL, REST

Commerce & CMS

  • Shopify, Shopify Plus
  • Liquid, Shopify CLI
  • WordPress, Elementor
  • Webflow

Design & growth

  • Figma, Adobe XD
  • Technical SEO, SEMrush
  • A/B testing
  • e2e testing, Git

Find out what your website is costing you.

A clear read on speed, SEO and usability, with a prioritized list of what to fix first.

Get a website audit

Tell me about your project.

A new site, a store that needs to sell more, or a product to build. I reply within one business day.

jnkreationsdev@gmail.com

Your details are only used to reply to you.