Jason McCullough

Frontend-focused product engineer

I build interfaces and help shape the products behind them.

I bring more than 15 years of experience turning complex customer and operational workflows into clear, production-ready software.

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Jason McCullough

Selected product work

Subscription + Operations

OrbitCrates

Built the customer, API, and operational systems behind an educational toy-rental subscription, connecting memberships, inventory, crate swaps, fulfillment, and history.

OrbitCrates toy catalog and membership experience across desktop, tablet, and mobile

Technical lead · Full-stack product engineering · UX

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Marketplace + Retail

TCGplayer

Modernized a major marketplace through responsive commerce, in-store kiosks, and a storefront platform supporting more than 600 retailers.

TCGplayer marketplace, in-store ordering kiosk, and hosted retailer storefronts

Frontend engineering · Product · UX

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Twitch + Music

NobBot.tv

Designed and built a fairer music-request platform for Twitch, taking it from initial concept through a successful live-stream alpha.

NobBot music player and request queue layered over a live Twitch stream

Product · Design · Full-stack engineering

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About

My best work happens where product decisions and implementation overlap.

I’m most useful when the problem is still being figured out. I help clarify requirements, map customer and operational workflows, question assumptions, and turn broad ideas into practical plans.

Then I stay involved through implementation, working across product, UX, architecture, and frontend engineering to build something that works for customers, operators, and the team maintaining it.

I’m based in Glastonbury, Connecticut. Outside of work, I spend a lot of time exploring Connecticut trails with my dog, Max.

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