Shopify Development Agency · AU
Your theme is the ceiling.
Until we rebuild it.
We build high-performance Shopify stores for Australian brands doing $30K–$300K/month — custom theme, lean app stack, conversion-engineered checkout. Less apps. Better architecture. More revenue.
1.4s
avg LCP post-rebuild
+38%
avg CVR lift post-build
-18%
avg apps removed per build
Your Shopify store works.
It just doesn't perform.
01
Theme bloat with 2,000+ lines of unused CSS
“Our agency took a $300 theme, changed the colours, and called it a build. Six months later the store was slower than our old WooCommerce site.” — AU Shopify founder
02
Every problem solved with another app
Size guides, FAQs, trust badges, upsells, sliders, custom labels — every one of these can be solved with 50 lines of Liquid. Most agencies install an app instead. You end up with 30+ apps fighting for render priority, $500/month in recurring license fees, and a slow store.
“I had 34 apps and no one could tell me which ones were essential. Three of them were doing the same thing.” — r/shopify
03
Zero thought given to conversion architecture
Product pages laid out like a product page should look — not like your specific buyer needs it to. No trust-signal placement strategy. No upsell logic. No real checkout thinking. The store converts whatever traffic Shopify’s default template converts. No more, no less.
“We redesigned for aesthetics and our CVR dropped 22%. Turns out ‘clean’ isn’t the same as ‘converts’.” — Shopify Plus brand
Four hidden issues that are
silently killing your revenue.
LCP over 3 seconds on mobile
Core Web Vitals in the red = lower rankings, higher bounce, and dead ad performance. Every 1s of LCP improvement adds measurable CVR on mobile. Most AU Shopify stores load in 4–6s on 4G.
App stack costing $400–$1,500/month
Every app is recurring revenue leaving your account every month. Most agencies don't audit app ROI — they just pile more on. We regularly remove 15–20 apps per build and save clients $500+/month in licenses alone.
Checkout losing 60–70% of carts
Shopify default checkout isn't the problem. Your checkout stack is. Too many form fields, missed payment methods for AU (Afterpay, Zip), no one-click upsells, no abandonment flow — all fixable at build time.
Fragile theme — every change breaks something
Theme updates break custom sections. Adding a feature requires a developer. CSS changes cascade unpredictably. Good architecture means you can iterate without fear. Bad architecture means the store is frozen.
"Your Shopify store could convert 40% higher. The build is what's in the way."
— The starting point of every EcomOptix Shopify build audit
Every one of these issues is fixable. None of them require a platform change. They require a Shopify development team that understands ecommerce revenue — not a generic web agency that happens to know Shopify.
We build Shopify-specific. For revenue. Not for awards.
87%
of Shopify stores we audit have at least 3 of these 4 issues unfixed. EcomOptix audit data across 55+ builds.
Four pillars. One system.
Built for Shopify revenue.
We don’t ship portfolio pieces. We ship revenue infrastructure. Every build follows the same four-pillar system — tested across 55+ production Shopify stores.
PILLAR 01
Audit & Revenue Analysis
We analyse your current store, quantify your revenue leaks, and map the highest-impact rebuild opportunities before we touch any code.
- Full technical performance audit
- App stack ROI analysis
- Checkout funnel analysis
- Revenue leak prioritisation
- 90-day build roadmap
PILLAR 02
Custom Theme Architecture
Bespoke Liquid theme built from scratch around your brand and your buyers. No Dawn forks. No bought template rebrands.
- Custom Liquid + Sections schema
- Conversion-engineered PDPs
- Brand-first design system
- Mobile-first responsive build
- Speed-optimised asset pipeline
PILLAR 03
Checkout & CVR Engineering
Checkout is where revenue lives or dies. We engineer it — not install it. AU-specific payment methods, one-click upsells, abandonment recovery, and trust-signal architecture.
- AU payment rail optimisation
- Afterpay/Zip integration
- Cart upsell & bundle logic
- Checkout extensions (Plus)
- Abandonment recovery flows
PILLAR 04
Launch & Growth Support
Zero-downtime cutover. 14-day post-launch monitoring. Quarterly performance reviews. You don’t get ghosted after go-live.
- Zero-downtime deployment
- 14-day monitoring post-launch
- SEO migration continuity
- Quarterly performance reviews
- Optional growth retainer
You'll know what we're building.
Every single week.
No black box. No “we’ll figure it out.” Here’s exactly what happens across a typical EcomOptix Shopify build — and what happens after.
Weeks 1–2 — Audit & Architecture
Quantify the leaks. Plan the build.
Full technical audit, app ROI analysis, checkout funnel review. Information architecture, URL strategy, template logic, app stack plan — all locked before we open a code editor.
Weeks 3–6 — Custom Build
Custom Liquid. Every section justified.
Theme development, PDP engineering, checkout configuration, asset pipeline, design system implementation. Weekly demo calls. Staging environment reviewed at every milestone.
Weeks 7–8 — Test & Launch
Cross-device. Cross-browser. Live on day 56.
Lighthouse audits, mobile device testing, real-order QA, DNS cutover plan. Zero-downtime launch with SEO continuity built in — redirect mapping, canonicals, schema all live on deploy.
Month 3+ — Post-Launch Growth
14-day monitoring. Quarterly reviews. Ongoing.
Real-time monitoring for 14 days post-launch. Conversion data reviewed weekly for the first month. Quarterly growth reviews for optional retainer clients — iterating on PDPs, checkout, and new feature builds.
Everything included.
Nothing hidden.
No scope creep. No “that’s extra.” Every EcomOptix Shopify build includes all of this.
Technical Build
- Custom Liquid theme built from scratch
- Core Web Vitals optimisation (LCP, CLS, INP under Google thresholds)
- Custom Sections schema for content flexibility
- Asset pipeline (images, fonts, JS) performance tuning
- Shopify 2.0 OS migration (if on legacy theme)
- Technical SEO baked in — schema, canonicals, redirects
- Cross-device, cross-browser testing
Custom Theme & Design System
- Brand-first visual design system
- Conversion-engineered product pages
- Category & collection page architecture
- Content sections (flexible for marketing use)
- Mobile-first responsive framework
- Design tokens & documentation
Checkout & CVR Engineering
- Cart drawer / cart page optimisation
- Upsell & bundle logic
- AU payment method integration (Afterpay, Zip, etc.)
- Abandonment recovery flows
- Trust signal architecture (reviews, badges, guarantees)
- Shopify Plus checkout extensions (if applicable)
Launch & Handover
- Zero-downtime production cutover
- Redirect map from legacy theme/platform
- 14-day post-launch monitoring
- Internal team training & handover docs
- App stack rationalisation report (apps kept vs removed)
- Performance benchmarks report (before vs after)
We track revenue.
Not portfolio pieces.
Every result below is from a real Shopify build. We report on orders, CVR, and LCP — not “clean design” and award submissions.
+42%
CVR lift in first 60 days post-rebuild. Old theme LCP was 4.8s; rebuilt to 1.4s. App stack reduced from 31 to 12. Checkout redesigned with Afterpay + Zip integration native to flow.
AU fashion brand · 8-week build · Shopify Plus · $80K–$180K/month
−22
Apps removed during rebuild, saving $680/month in recurring licenses. Custom Liquid replaced 18 of them. Store speed went from Lighthouse 32 to 94 mobile.
AU homewares brand · 6-week build · Shopify · $40K–$90K/month
+28%
AOV increase within 90 days. Bundle logic, PDP upsells, and cart drawer rebuilt from scratch. Revenue per session up 34% without any change to traffic sources.
AU wellness brand · 10-week build · Shopify · $100K–$250K/month
We only take on Shopify brands
ready for a proper rebuild.
Not every Shopify store needs a rebuild. We audit first and tell you honestly whether optimisation beats reconstruction for your specific case.
This is for you if...
- You're doing $30K–$300K/month on Shopify or Shopify Plus
- Your current theme is limiting conversions or speed
- You have 20+ apps and want a leaner stack
- You're planning to scale 2–5× and know the current build won't survive
- You want a rebuild without losing SEO or revenue during transition
- You value speed, architecture, and CVR over portfolio aesthetics
This is NOT for you if...
- You want a $3,000 theme rebrand — that's a template swap, not a build
- Your Shopify store does under $10K/month — optimisation is cheaper than rebuild
- You want a rebuild in 2 weeks — proper builds take 6–10 weeks
- You want to stack more apps on top of more apps
- You're not willing to let us rationalise your app stack
Shopify dev specialist
vs generic dev agency vs freelancer.
50+ verified reviews.
From real Shopify brands.
“We had 34 apps and a 5.2s LCP. EcomOptix rebuilt in 8 weeks, dropped us to 12 apps, 1.4s LCP, and our CVR jumped 38% in the first 60 days. The app cost savings alone paid for the rebuild in year one.”
LK
Laura K.
Founder · AU Fashion Brand · Shopify Plus
“Our previous agency took 12 weeks to build a Dawn fork with a logo swap. EcomOptix rebuilt from scratch in 8 weeks with custom Liquid, custom PDPs, and properly engineered checkout. Two different jobs, two different outcomes.”
MR
Marcus R.
CEO · AU Homewares Brand · Shopify
“Zero downtime on launch. No SEO loss. Three months post-launch, organic traffic actually grew 12% because the technical foundation was better than our legacy theme. That’s the kind of migration I wanted.”
AC
Amanda C.
Owner · AU Wellness Brand · Shopify
50+ verified client reviews. Read them all on our profile.
Everything you're
probably wondering.
How long does a Shopify rebuild take?
Full custom Shopify builds: 6–10 weeks. Shopify Plus with custom checkout: 8–12 weeks. Optimisation engagements (keeping current theme): 2–4 weeks. We give firm timelines after scoping — not estimates based on “how we feel.”
Will I lose SEO or revenue during the rebuild?
No — that’s the whole point of our migration continuity approach. We map every URL, preserve redirects, rebuild schema, and deploy with zero downtime. Our average client’s organic traffic holds steady or grows post-launch because the new foundation is technically cleaner than the old one.
Can you optimise my store without a full rebuild?
Yes — often that’s what we recommend. In the free audit we’ll tell you honestly whether surgical optimisation will get you 80% of the gains for 20% of the cost. Sometimes 3 weeks of optimisation beats a 10-week rebuild. We’d rather tell you that than take your money.
Why remove apps — aren't they the whole point of Shopify?
Apps are great when they solve a problem code can’t. Most apps solve problems that 50 lines of Liquid can solve better — and they charge $15–$80/month forever. A lean custom theme replaces 15–20 apps without losing functionality. You save $400–$1,500/month in licenses and your store runs faster.
Do you handle migrations from WooCommerce, Magento, or BigCommerce?
Yes. Migration with full SEO continuity, data integrity (orders, customers, products), and zero-downtime cutover. Migrations are where most brands lose 30–60% of organic traffic — we’ve engineered a process to retain it.
How much does a Shopify build cost?
Builds start from $9,500 AUD for full Shopify custom theme work, with Shopify Plus and headless builds scaling from there. Optimisation engagements from $3,500 AUD/month. We work with Shopify brands doing $30K–$300K/month where the ROI on a proper build makes sense.
Do you work with Shopify Plus?
Yes. Shopify, Shopify Plus, and headless Shopify builds are all within scope. Plus builds involve additional complexity — checkout extensions, custom scripts, B2B catalog, multi-store — all of which we manage in-house.
What happens after launch?
14 days of active monitoring with daily check-ins for the first week, then handover documentation, team training, and optional growth retainer. You don’t get ghosted. Most clients stay on a growth retainer for ongoing CVR iteration, new feature builds, and quarterly reviews.
Free. No obligation. No script.
Find out exactly what's costing
your Shopify store revenue.
We’ll audit your Shopify store’s technical performance, app stack ROI, and checkout funnel — and tell you exactly what we’d rebuild, optimise, or leave alone. Free, with no obligation.
Takes 30 minutes. We come prepared. You keep the audit regardless.
- Technical performance audit
- App stack ROI report
- Checkout funnel analysis
- No lock-in contract
- AU Shopify specialists