Custom Shopify Developer Needed – Product Pages with Cart Integration (Prototypes Provided)

Poco Picante – Custom Shopify Pages: Project Brief Overview Poco Picante (pocopicante.co.uk) is a small-batch artisan Mexican food brand based in the UK, producing salsa sauces, spice blends and seasonings. We need a Shopify developer to build four fully custom, interactive product pages — all designed and prototyped in HTML/CSS/JS and ready for handoff. All four page designs are complete and fully functional as interactive HTML prototypes. Your job is to implement them accurately in Shopify using the existing theme (or a custom template), wire up the cart and Shopify product/variant logic, and handle subscribe & save functionality. Important: No paid apps or third-party app subscriptions are to be used for any element of this build. Everything must be built natively using Shopify Liquid, JavaScript, and the Shopify Cart/Ajax API. Any subscription functionality must be implemented using Shopify's native selling plans (available on all Shopify plans) — not Recharge or any other paid subscription app. The Four Pages Page 1 — Bundle Builder Live prototype: https://claude.ai/public/artifacts/4549de26-f613-42d7-a393-ec2cab425839 A fully interactive bundle builder with: 4 bundle size tiers (Barrio, Fiesta, Mariachi, Cantina) with discount logic (0–15% off) 3 product groups: Salsas, Spice Blends, Seasonings — user fills their bundle from each Progress bar showing how many products remain to complete the bundle Free shipping progress bar (unlocks at £50) Step 3 collapsible extras section (add individual products at full price) Live total calculation including bundle discount + extras + shipping saving Full Shopify cart integration Page 2 — Salsa Sauces Product Page Live prototype: https://claude.ai/public/artifacts/d26e15a0-4a06-4a50-b3bc-8c1d0bd32a7e A single dynamic product page covering all 4 salsa sauces: Clicking a product tile transforms the entire page theme (colours, imagery, description, ingredients) 3 purchase modes: Single Variety (4 or 8 pack), Mix & Match, Subscribe & Save 15% Subscribe mode includes both single variety and mix & match sub-modes with delivery frequency selector (mandatory — 1, 2 or 3 months) Collapsible extras section: Spice Blends (open), Seasonings, Salsas Free shipping bar, live total, savings chip Product photography pulled from Shopify CDN Full product descriptions, ingredient spotlights, nutrition tables per product Page 3 — Spice Blends Product Page Live prototype: https://claude.ai/public/artifacts/49a4f496-34fe-4c42-be33-87b9620823a8 Same structure as the salsa page, covering all 4 spice blends (Al Pastor, Barbacoa, Birria, Carnitas): Pack options: 3 pack, 4 pack, 6 pack 2 purchase modes: Single Variety, Mix & Match (no subscribe on this page) Collapsible extras: Salsa Sauces (open), Seasonings, Spice Blends Same theme-switching, live total, shipping bar Page 4 — Seasonings Product Page Same structure and functionality as Page 3 (spice blends). Covers all 4 seasonings: Jalapeño & Lime, Red Chilli & Lime, Smoky Chipotle, Mango Habanero Pack options and extras structure to match Page 3 Theme colours TBD (to match existing brand) Technical Requirements Platform: Shopify (existing store) Subscription: Native Shopify selling plans only — no Recharge or any paid subscription app No paid apps: Every element must be built natively — no app installations, no recurring app charges Cart integration: All pages must add correctly structured line items to the Shopify cart using the Ajax Cart API, including bundle items, extras, variant selection and subscription selling plan metadata Responsive: All pages must work on mobile and desktop Brand fonts: Recoleta Bold and Patinio Rotulo (licensed, will be provided) Prototypes: Full HTML/CSS/JS prototypes provided for all 4 pages — pixel-accurate implementation expected What We're Looking For Proven Shopify custom development experience (theme + Liquid + JS) Experience with bundle/custom product page builds (not just standard product templates) Recharge or subscription app integration experience Clean, well-commented code Ability to work from a design prototype rather than a Figma file Deliverables 4 custom Shopify page templates (Pages 1–4) Full cart integration for all purchase modes Subscribe & Save integration (Pages 1 & 2) Mobile-responsive across all pages Code handoff with documentation Budget Fixed price: $150. Non-negotiable. This is a well-scoped project with complete working prototypes provided — no design discovery required, no guesswork. We're paying for implementation only.