Zaid Ahmad logo
Freelance Shopify developer

Shopify Developer for Theme Customization, Speed & Custom Features

I'm a freelance Shopify developer who builds, fixes, and speeds up Shopify stores. If you're past the templated-theme stage and need a developer who understands Liquid, the Storefront API, and Core Web Vitals — that's what I do.

What you'll get

How I work as a shopify developer

Concrete deliverables, not a sales page. Here's what comes out of working together.

  • Custom Shopify theme sections, blocks, and Liquid logic
  • Core Web Vitals (LCP, INP, CLS) work that actually moves the score
  • Storefront API + headless Shopify with Next.js / Hydrogen
  • App integrations, custom checkout flows, B2B configurations
  • Audit + fix work on themes you already have
  • Migrations from Shopify themes you outgrew

What I actually do as a Shopify developer

Most stores I get hired on are past the point where a theme editor can solve the problem. The owner has tried two or three apps, a freelancer from a marketplace, and maybe a YouTube tutorial — and the site is still slow, the customizer is fighting them, or there's a feature they need that no app sells.

My work falls into four buckets: theme customization, performance, custom features, and the post-launch maintenance that nobody talks about. Theme customization means actual Liquid changes — new section types, block schemas, settings exposed to the customizer, predictive search modifications, cart drawer tweaks. Not 'install a $20 app and hope.'

Performance work is where I spend the most time. Most Shopify stores I audit have an LCP between 3.5 and 5 seconds, and the owner has been told to 'compress your images.' Compressing images is rarely the actual fix. The actual fix is usually some combination of app bloat, oversized hero images delivered uncropped, render-blocking Liquid in the head, and theme JavaScript that hydrates on every page. I work through the real triage order.

How I approach a new Shopify project

First call is free and runs about 15 minutes. I want to see the storefront, hear what's not working, and understand whether the problem is theme-shaped, performance-shaped, app-shaped, or operations-shaped. Sometimes the right answer is 'fire one of your apps' and that's a 30-minute job, not a project.

If it's a real engagement, I write a one-page scope. Deliverables, not hours. Stores don't care whether it took me 6 hours or 16 — they care whether the LCP dropped under 2.5s and whether the custom bundle builder works on mobile Safari. So that's what I commit to.

From there it's usually a dev-store mirror, a working branch, screen-recorded handoff, and a week of post-launch availability for the small things that always come up. I don't disappear after the invoice clears.

When you should hire a Shopify developer (and when you shouldn't)

You probably don't need a Shopify developer if you can solve the problem in the theme customizer or with a well-rated app. Stores that hire me too early end up paying for custom work they could've gotten from a paid theme. I'll tell you that on the call.

You probably do need one if (a) you've outgrown your theme's flexibility, (b) Core Web Vitals are bleeding paid-traffic conversion, (c) you need a feature no app sells, or (d) you're moving to headless and need Storefront API + Next.js or Hydrogen experience.

B2B stores and Shopify Plus stores almost always need a developer at some point because the markets-and-segmentation work, the custom checkout (only available on Plus), and the volume pricing logic are genuinely code-shaped problems.

Headless Shopify and the Storefront API

I work on a lot of headless Shopify projects — usually Next.js App Router on the front, Storefront API for catalog and cart, and a Shopify checkout the customer is redirected to. Headless is the right call when you need page-load speeds the Online Store engine can't hit, content that mixes commerce with editorial, or a frontend stack your team already knows (React).

Headless is the wrong call when you don't have the engineering capacity to maintain it, or when your business model leans heavily on Shopify-native apps that don't expose their UI through the Storefront API. I'll be honest about which side of that line your store is on.

Working with US-based Shopify clients

Most of my Shopify work is for US-based brands and DTC stores — California, New York, Texas, Florida, and everywhere in between. I structure my hours to overlap with US business time so you're not waiting overnight for a code review or a deploy reply. Slack, Notion, Linear, GitHub — whatever your team already runs on.

Async-first by default. Daily standup if your team wants one, scoped sprints if you don't. Contracts and invoicing handled cleanly via US-payable channels (Stripe / Wise / direct bank). If you're an LLC, an agency, or a brand operating in the US, the engagement structure won't be the awkward part.

Related

More on this topic

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