Sirius XD Pty Ltd

About

Business description

Sirius XD is the behind-the-scenes development team for Shopify and Shopify Plus brands. We handle complex builds, platform migrations, and server-side tracking and attribution - fixing the technical problems other providers can't. 
Execution-first, infrastructure-deep.

Designed and built the full Shopify storefront for the made-in-Australia swimwear label, then rolled the theme out across dedicated UK and France regional stores, each with its own Stape server-side tracking and Klaviyo flows for clean, market-specific attribution.

A sophisticated Shopify build for one of the Barossa's leading wineries: a tiered membership system (Hillside Member and Collector) driven by metafields and custom Mechanic logic, a Wine Club subscription program on Recharge, and integrated event and cellar-door dining bookings with custom checkout flows, all synced into Klaviyo for member-tier and subscription-lifecycle segmentation.

Designed and built a new Shopify storefront for a heritage Australian menswear brand, integrated with POS Pro for in-store retail and structured to carry an expanding range, including the new "Off Duty" sub-line. Now on an ongoing growth and support retainer.

Migrated a high-SKU shapewear and intimates retailer off Magento onto Shopify with a clean, no-drama cutover - preserving SEO, URL structure, and order history - then carried the brand into ongoing performance and support work.

Hardened a high-traffic scientific instruments store with Cloudflare allowlisting and ASN-based bot blocking eliminating spam-form abuse within 72 hours - and engineered custom checkout behaviour, in-store availability logic, and email deliverability (DKIM/DNS) fixes for a technically demanding, multi-stakeholder client.

Re-platformed a family-owned Australian workwear and safety brand off a legacy .NET site onto Shopify Plus, across both retail and B2B/wholesale. The core of the build was the Unleashed ERP integration - migrating and restructuring the full catalogue, resolving complex size/colour variant grouping, and syncing inventory between Unleashed and Shopify, on top of a ground-up redesign.