About Performant

We build operational software on Shopify. Custom apps, integrations, and workflows for merchants where off-the-shelf stops being enough.

What Makes Us Different

Commerce-First Thinking

We don’t build generic software. Every solution is shaped around how merchants actually operate — orders, fulfillment, payments, and customer workflows.

Architecture Before Code

We design the system before we build it. Data flows, API dependencies, and failure modes are mapped before a line of code is written.

Direct Access to Builders

You work directly with the developers and architects building your system. No account managers relaying messages.

Built for Shopify’s Ecosystem

We build on Shopify’s APIs, extension points, and deployment infrastructure not against them. Updates don’t break what we build.

Operational Outcomes, Not Deliverables

We measure success by reduced manual work, fewer errors, and faster processing not by lines of code or number of features shipped.

What We’re Best At

We specialize in the operational side of Shopify the systems, integrations, and custom apps that sit behind the storefront. When a merchant’s operations have outgrown themes and off-the-shelf apps, that’s where we do our best work.

Custom Shopify Apps

Admin tools, checkout extensions, and workflow apps built to Shopify’s standards and deployed through the app infrastructure.

Systems Integration

Connecting Shopify with ERP, WMS, CRM, 3PL, and finance systems reliably, at scale, with proper error handling.

B2B & Operational Workflows

Wholesale ordering, approval chains, custom pricing, and post-purchase automation for complex merchant operations.

Our Clients

How We Deliver

STEP 01

Diagnose & Architect

We map your current Shopify setup, app stack, integrations, and operational pain points. Then we design the system architecture: data flows, dependencies, and a phased implementation plan.

STEP 02

Build & Test

Development runs in focused sprints. Every component is built to Shopify’s standards, tested against real order data, and demoed weekly. Nothing ships without validation.

STEP 03

Launch & Stabilize

We deploy to production, monitor through the first real-world cycles, and refine based on actual usage. Post-launch support is part of the engagement, not an upsell.

What teams say after working with us

Jen Fairburns

OYNB

Performant designed and built a refreshed website home page for us in Wordpress and did an excellent job. They were helpful and respectful but clearly knowledgeable in their field, offering expert advice and recommendations at each stage. From the outset, with very tight timelines, they proposed a clear schedule which they then stuck to, even though it ran over the holiday period. It was lovely to see design and development skills wrapped up so efficiently; they gave us three design approaches in Figma and then moved on to execute the Wordpress build seamlessly.

Andrew Hewitt

Yoh Digital Agency LLC

One of our most valuable agency partnerships, wouldn't have been possible to scale at speed without them.

Chand Sooran

Edgeworth Box

Very knowledgeable team. Easy to work with. Understood clearly the requirements after asking detailed questions. Extremely happy with the result, particularly the fact that they took it off my plate and I could trust them to execute (even without knowing them, but based on the way the PM talked about the project).

Mark C

Equities Club

They were brilliant, highly recommend. Really easy to deal with and knew their stuff. 10

Nathan Langton

Booked it

The team at Performantcode worked tirelessly to deliver the project, even with last-minute curve balls from us. The final product looks great, and we are going to continue using them for future projects. Communication was great, the work was completed quickly, and the support during go-live was much appreciated.

Dr Franz Lettenstrom

Bentham Science

Performant delivered excellent work on this FE development project and I enjoyed working with them. Communication was top-notch, met all deadlines, and skills were very strong. I enjoyed working with them and will likely have additional jobs for them in the future. Very few agencies have the ability to untangle complex requirements with ease and finesse. Highly Recommend!

Our Journey

We’ve spent years building systems that replace manual work with reliable software. Every engagement is shaped by clear communication, operational thinking, and a focus on outcomes that compound over time.

Let's Discuss

Shopify Systems Built

Custom Apps Shipped

Merchants Served

Not Sure Where to Start?

Tell us what’s not working in your Shopify operations. We’ll tell you whether it’s a quick fix or a systems problem and what the right first step looks like.

Book a Shopify Systems Audit