About Nico
I help startups and brands ship AI chatbots, RAG systems, and Shopify headless storefronts. With 10+ years of freelance engineering, I combine technical depth (Next.js, Supabase, GraphQL, TypeScript, Hydrogen, Tailwind) with a product mindset to deliver fast, reliable, and maintainable solutions.
English
Native or bilingual
Spanish
Native or bilingual
Italian
Fluent
Can work on-site
London (up to 50km)
Experience
- Self-Employed (Freelance)Senior Full-Stack Engineer | Headless Shopify & SaaS IntegrationsNovember 2015 - Today (10 years and 7 months)London, United KingdomOver the past decade, I’ve delivered end-to-end projects for global e-commerce brands, with a focus on Shopify, headless commerce, and backend integrations.Selected Projects:
- Headless Shopify build (Taygra Shoes) – Rebuilt storefront using Hydrogen, Remix, Storefront API, GraphQL, and Tailwind CSS. Delivered a mobile-first, modern site with drastically improved browsing speed and custom page designs from mockups.
- ERP/CRM integration (US mattress factory) – Connected Shopify to ERP and multiple delivery and logistics platforms, automating order/inventory sync. Result: ~15 hours saved weekly for ops.
- Performance & conversion optimization – Optimized several Shopify stores, improving PageSpeed Insights scores, cutting load times 40–60%, and boosting SEO rankings.
- Self-Employed (Freelance)Full-Stack Engineer – Shopify Custom Apps DevelopmentMarch 2017 - Today (9 years and 3 months)Designed and delivered custom/private Shopify apps to solve challenges that standard plugins could not address. These projects combined deep technical problem-solving with a focus on user experience, conversion, and operational efficiency.
- Digital product delivery (yarn company) – Built a custom app to sell knitting patterns with automatic login and secure content access based on Shopify tokens. This created a seamless post-purchase experience at a time when Shopify did not yet support this functionality.
- Advanced search filters (automotive retailer) – Developed a private app to handle complex product filtering by proxying external API calls through Shopify, overcoming CORS limitations. Result: faster, more relevant product discovery for customers.
- 3D product customization (Canadian bat company) – Integrated interactive 3D models with dynamic engraving and color options into Shopify, enabling customers to preview personalized baseball bats in real time and increasing conversion on custom orders.
- Inventory & logistics automation – Built apps to synchronize Shopify with external ERP/warehouse systems, reducing fulfillment errors and cutting stock discrepancies.
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Education
- Master's in Software EngineeringUniversidad Nacional de La Plata2015
- Bachelor's in Software EngineeringUniversidad Nacional de La Plata2013