devkyn — senior dev studio on subscription
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Built for - A senior engineer for your ecommerce brand

Your store works until traffic spikes, a checkout edge case eats an order, or Shopify's theme limits block the thing you actually need. devkyn handles the custom builds, integrations, and bug fixes your agency keeps quoting six weeks for.

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  • Theme apps and no-code tools cover 80% of what you want, then you hit a wall on the last 20% that actually moves revenue.
  • Checkout bugs, broken discount logic, and tax and shipping edge cases cost real orders, and you only find out from angry customer emails.
  • Every integration (3PL, ERP, subscription billing, custom ROAS reporting) means a new agency quote, a new contractor, and a six-week wait.
  • Black Friday is coming and nobody owns the work to make sure the site doesn't fall over.

What we build for Ecommerce brands

  • A custom Shopify Hydrogen or headless storefront when the theme editor stops cutting it, with proper Core Web Vitals so you stop bleeding mobile conversions
  • A bundle-and-subscribe flow with custom discount logic that the standard apps can't express, wired straight into checkout
  • A 3PL or ERP sync that keeps inventory, orders, and fulfillment status accurate across Shopify, your warehouse, and your accounting
  • A custom post-purchase upsell and one-click reorder flow built on the Checkout Extensibility and Functions API
  • A real margin and ROAS dashboard pulling Shopify orders, Meta and Google ad spend, and COGS into numbers you can actually trust
  • A pre-Black-Friday hardening pass: load-test the cart, fix the checkout race conditions, add fallbacks so a flash sale doesn't take the store down

Why a subscription fits Ecommerce brands

Ecommerce work is lumpy. You launch, you migrate, you scramble before Black Friday, then you coast through a quiet month of small fixes. A flat monthly subscription puts a senior engineer on tap for the heavy weeks. Pause it during the slow ones. No contractor hunt every time something breaks.

Frequently asked questions

Do you work with Shopify, or only custom stacks?
Both. We build on Shopify (themes, apps, Hydrogen, Functions, Checkout Extensibility) and we build fully custom storefronts on Next.js when you've outgrown the platform. If it's code, we can do it. We don't do pure no-code app config you could click together yourself. We do the engineering those apps can't.
Can you handle our Black Friday / peak-season prep?
Yes, and it's worth queuing early. Send us the work in priority order: load-testing, checkout fixes, fallback flows. One active task at a time with 48 to 72 hours average turnaround, so line up the critical items a few weeks out and we'll burn through them before peak.
Will you touch our live checkout and payment flow?
Carefully. We test on a dev store or staging theme, never ship blind to a live checkout, and roll out changes you can verify. You keep full control of your Stripe and Shopify Payments setup and approve before anything goes to production.

Got a task? Let's ship it.

3 spots open. Subscribe today, drop your first task, and most tasks ship in 48 to 72 hours. No call required.

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