Shopify Development Services

Custom Shopify builds that convert browsers into buyers

Your store should do more than look good. We build Shopify experiences that load fast, handle real traffic, and connect to the tools your business already runs on. From a ground-up custom theme to a complex multi-channel integration, we scope it, price it, and deliver it.

Shopify Liquid JavaScript CSS Shopify APIs Shopify Apps

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Trusted by companies across the USA

The SIR Group

Shopify Development for Your Business

A home goods brand came to us after spending four months with a previous agency. Their Shopify store was live, but the checkout conversion rate was sitting at 0.9%. The theme was slow, the mobile layout broke on certain Android devices, and their inventory system had no connection to the store. Customers were placing orders for products that had sold out two days earlier. We rebuilt the theme from scratch using Liquid and optimized JavaScript loading, brought their mobile PageSpeed score from 31 to 84, and wired up a live inventory sync via the Shopify Admin API. Within 60 days of relaunch, their conversion rate climbed to 2.7%.

Shopify is not a plug-and-play solution the moment your business grows past a basic catalog. The platform gives you a strong foundation, but the gap between a default theme and a store that actually performs at scale is filled with custom Liquid logic, thoughtful app decisions, and integrations that keep your backend systems in sync. That is where most store owners hit a wall. They are not Shopify developers, and the freelancers they have tried either disappear mid-project or deliver something that works on their screen but breaks in production.

We have been building on Shopify since before Shopify Markets existed. Our work covers custom theme development, headless Shopify builds, private app development using the Shopify API, migrations from platforms like WooCommerce and Magento, and ongoing store optimization. One thing we are direct about: if your store needs something that Shopify fundamentally cannot support (like highly complex B2B pricing tiers with account-level catalogs and net-30 invoicing), we will tell you before you spend a dollar, not after.

Why Choose Shopify Development

Themes Built for Speed, Not Just Style

We write Liquid and JavaScript with page performance in mind from day one. Deferred scripts, critical CSS inlining, and lazy-loaded sections typically shave 2-3 seconds off time-to-interactive compared to a stock theme.

Fixed-Price Projects, No Billing Surprises

Every project is scoped and priced before work begins. You know exactly what gets built and what it costs, so your budget does not move.

App Decisions That Save You Money

Most stores accumulate 12 to 18 apps over time, each adding weight and monthly fees. We audit what you actually need and often replace three paid apps with one piece of custom Liquid or a lightweight private app.

Mobile-First by Default

More than 70% of Shopify traffic is mobile. We design and test on real devices, not just a resized browser window, and we set explicit pass thresholds before any build goes to QA.

You Own Everything

All theme code, custom apps, and API integrations we write belong to you when the project closes. No licensing fees, no vendor lock-in to us.

Integrations That Actually Sync

We connect Shopify to ERPs, 3PLs, CRMs, and fulfillment systems using the Shopify Admin API and webhooks, so your inventory, orders, and customer data stay current across every system.

Our Shopify Development Services

Custom Theme Development

We build themes in Liquid from a design file or from scratch, built around your brand and your conversion goals, not a purchased template stretched to fit.

Private App Development

When the App Store does not have what you need, we build private Shopify apps using the REST and GraphQL Admin APIs to add functionality specific to your workflow.

Platform Migrations

We migrate stores from WooCommerce, Magento, BigCommerce, and custom platforms to Shopify, preserving product data, order history, customer records, and SEO URL structure.

Third-Party Integrations

We connect Shopify to QuickBooks, ShipStation, Klaviyo, Salesforce, and custom internal systems using webhooks and the Shopify API so data flows without manual export-import cycles.

Store Optimization and Rebuilds

If your existing store is slow, broken on certain devices, or showing high cart abandonment, we diagnose the root cause and fix it rather than recommending a full rebuild by default.

Ongoing Support

After launch, we offer retainer-based support covering bug fixes, Shopify version updates, new feature additions, and performance monitoring with a 48-hour response window for standard requests.

How We Deliver Shopify Development Projects

No 47-slide proposal deck. No three-month discovery phase. Here is how a project moves from your idea to working software.

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1

Discovery & Planning

We spend the first week reviewing your store, your existing apps, your fulfillment workflow, and your analytics. If you have a 34% cart abandonment rate, we want to understand why before writing a single line of code, not after launch.

2

UI/UX Design

We design in Figma and share every screen with you before development starts. You review and approve the design as a working prototype, so there are no surprises when it gets built in Liquid.

3

Development

Theme development happens in a Shopify development store so your live site stays untouched. We use version control throughout, and you get a staging link to review progress before anything touches production.

4

Testing & QA

We test on actual iOS and Android devices, across Chrome, Safari, and Firefox, and run structured checkout flows with real payment methods in test mode. Performance benchmarks are checked against targets set in discovery, not eyeballed.

5

Launch

We handle the DNS cutover, theme publishing, and post-launch monitoring window. If something unexpected surfaces in the first 72 hours, we are already watching for it.

6

Support & Growth

Our retainer support includes a dedicated Slack channel, a shared project board for tracking requests, and bi-weekly check-ins. We also flag Shopify platform changes that could affect your store before they cause problems.

Why Choose Aneri Developers

Your Progress Happens Overnight

We are based in India, which means our team is building while you sleep. Send us a detailed brief at the end of your day and wake up to a working build or a resolved bug. The time zone difference is a genuine workflow advantage.

Same Engineers, Start to Finish

The developers who scope your project are the developers who build it. No handoffs to a junior team after the sale, no knowledge lost mid-project.

Operating Since 2015

We have been building on Shopify long enough to have seen what breaks at scale, what app categories are worth paying for, and where the platform has real limits. That history shows up in the decisions we make on your project.

Communication That Keeps Up With Your Day

We use Slack for daily updates, Zoom for weekly calls, and Loom for async walkthroughs when a video is clearer than a paragraph. You always know where the project stands without having to chase anyone.

500+ Projects Across 20+ Countries

Our work spans industries from consumer goods to B2B wholesale. That range means we have likely solved a version of your problem before and can tell you what approach held up and what did not.

NDA and Contract on Day One

We sign an NDA before any project discussion and provide a clear contract that specifies deliverables, IP ownership, and payment terms. You own all code we write, with no strings attached.

Frequently Asked Questions

Common questions about shopify development.

Yes, and for most clients we recommend it. Purchased themes carry CSS and JavaScript for features you will never use, which hurts page speed. A theme built specifically for your store from a Figma design typically loads faster and is easier to maintain long-term. That said, if you have a tight budget and a simpler catalog, a well-customized premium theme can be a practical starting point.

Theme customizations change how your store looks and behaves on the front end using Liquid, CSS, and JavaScript. Apps extend what Shopify can do at the data layer, such as adding custom metafields, syncing inventory with an external system, or handling subscription billing logic. Sometimes what looks like a theme problem is actually an app problem, and we diagnose which it is before recommending a fix.

Not if the migration is handled carefully. The two main risks are broken URL structures and missing redirects. We map your existing WooCommerce URLs to their Shopify equivalents and set up 301 redirects for every changed path before the new store goes live. We also migrate meta titles, meta descriptions, and alt text so nothing is lost in the transfer.

We work on a fixed-price model. After a discovery call, we document the full scope and send a written proposal with a single project price. There are no hourly billing surprises. If scope changes during the project, we discuss the impact before doing additional work, not after.

A custom theme build from a Figma design typically takes 4 to 7 weeks depending on the number of page templates and the complexity of custom sections. A migration from another platform adds 1 to 2 weeks for data transfer and redirect mapping. We give you a timeline specific to your project during the scoping phase, not a range that could mean anything.

We offer retainer-based post-launch support for exactly this reason. Standard change requests are handled within 48 hours. Larger additions go through a mini-scoping process so you know what they cost before we build them. We have worked with several clients on an ongoing basis for more than three years after their initial launch.

It requires structure, and we have built that structure over 11 years. Every project has a dedicated Slack channel, a shared task board, and a weekly Zoom call scheduled during US business hours. For async questions, we respond within a few hours during our working day. Most clients tell us they feel more informed on project status than they did with previous local vendors.

A few worth mentioning. Complex B2B pricing with account-level catalogs and net-30 invoicing is possible but requires significant custom app work and Shopify Plus. Subscription models with highly flexible billing logic (custom billing dates, usage-based billing) hit Shopify's API limits and often need a third-party subscription platform like Recharge. We will tell you upfront if your requirements are better served by a different platform or a hybrid approach.

Tell us what your store needs to do

Share your current setup, what is not working, and what you want to build. We will review it and come back with a clear scope and a fixed price, no obligation.

Free Consultation
No Commitment
NDA on Day One

Describe Your Project

Include as much detail as you want. We typically reply within 24 hours.

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