João Pedro Gaspar

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João Pedro Gaspar

Shopify Front-end Engineer — Liquid themes · Headless Hydrogen · Checkout extensions & Functions

São Paulo, Brazil · UTC−3 · 1–2 h ahead of US Eastern

jpgaspar.devhello@jpgaspar.devlinkedin.com/in/jpgasparsr7github.com/joaoplgaspar

Summary

Front-end engineer who builds Shopify stores end to end, in Liquid and headless Hydrogen: sections, product pages, cart and checkout, with performance, SEO and structured data built in from day one. I ship 30-page stores solo in days to weeks, and extend the platform with checkout UI extensions, Shopify Functions and custom apps when it falls short. Founder of Livra, a reading app I built and run alone (React, Capacitor, Firebase).

Experience

SHAKERS — Shopify agency · São Paulo

May 2024 – Present

Squad Leader — Shopify Expert, Headless & LiquidAug 2025 – Present

Junior Front-end DeveloperApr 2025 – Aug 2025

Front-end InternMay 2024 – Apr 2025

  • Build complete Shopify stores alone, 30+ pages, from theme sections to product page, cart and checkout, in Liquid and Hydrogen. Live work includes Fujifilm Brazil, Qix Skate Shop and UV Line.
  • Led the squad on Roland and Boss Brazil's headless Hydrogen storefronts. Drove the architecture of the agency's first shared cart: one cart and one checkout across two brand domains, chosen over synced carts to rule out race conditions.
  • Tech lead for Integralmédica and Darkness, two brands on one Shopify admin: per-brand account areas, checkout extensions, promotion rules in Shopify Functions and custom apps.
  • Built HSM / Singularity alone: a headless storefront for two education brands and a custom app that withholds federal taxes at checkout for business buyers (checkout UI extension, discount and validation Functions, admin settings).
  • Work from a shared, versioned base of sections with automated checks at several widths, so a fix made in one store reaches the next one.
  • Promoted twice in 15 months: intern to junior, then to squad leader.

Livra — Reading app · iOS, Android, web

2026 – Present

Founder & sole engineer

  • Designed, built and run the whole product alone: 600 registered users in the first month.
  • Reconciled six book-catalog APIs into one canonical work/edition identity, with an on-device barcode-to-ISBN scanner.
  • AI librarian on Gemini: every recommendation is checked against the real catalog before it is shown.

Skills

Shopify
Liquid, Online Store 2.0 sections & blocks, Hydrogen, Oxygen, Storefront API, Checkout UI extensions, Shopify Functions, custom apps, metafields & metaobjects
Front-end
TypeScript, React, Remix / React Router, Next.js, Tailwind CSS
Quality
Core Web Vitals, technical SEO, structured data (JSON-LD)
Also
Firebase, Capacitor, Stripe, Weaverse, Nuvemshop

Education

B.Sc. Computer Science — UNASP, São Paulo campus

2023 – 2026 (expected)

Technical diploma in Information Technology

Languages

Portuguese (native) · English (intermediate) · Spanish (intermediate)