Jason McCullough

• Owned technical direction for an early-stage toy-rental ecommerce startup, translating the business model into product architecture, customer and staff workflows, and an implementation plan.
• Rebuilt the React and Next.js customer and administrative experiences around a shared crate lifecycle spanning current rentals, draft swaps, submitted fulfillment, inventory status, and history.
• Designed and implemented APIs and Firebase data models for crate swaps, reservations, inventory changes, fulfillment, and historical records, integrated with Shopify and Recharge.
• Partnered with the founder and technical team on MVP scope and tradeoffs, then documented the architecture, migration, testing, and handoff.

• Maintained and customized the Shopify storefront, resolving UI issues and improving responsive behavior and content presentation.
• Supported product entry, inventory workflows, storefront maintenance, and ecommerce administration directly with the business owner.

Stepped away from full-time software development to focus on family responsibilities. During this period, I stayed connected to frontend development, ecommerce, CMS platforms, and product-oriented web technology before returning to contract and startup development work.

• Created a responsive prototype covering roughly 90% of the marketplace’s customer-facing page types during a one-week internal hackathon.
• Designed and built an in-store catalog and ordering kiosk from wireframes and customer flows through frontend development and API integration.
• Built a system of more than 20 storefront templates supporting more than 600 retailer websites hosted in Umbraco Cloud.

• Developed responsive CMS-driven websites with designers, backend developers, and project stakeholders through QA, launch, and support.
• Built a reusable frontend scaffold, templates, and components for Kentico, Umbraco, and Sitefinity projects.

• Served as the primary frontend developer across agency websites, campaign builds, and CMS projects from design handoff through launch and maintenance.
• Created reusable templates and page structures while supporting estimates, technical planning, browser compatibility, CMS integration, and delivery standards.