function() is the leading Shopify development branch of MALVI →
140+ launches across 14 markets

End-to-end Shopify Builds, Engineered to Perform

From wireframe to theme tweak or full-blown custom app, we architect every layer for breakneck speed, bulletproof scale, and feel-good UX.

Not just stores.
Commerce engines.

We are proud Shopify Partners. Choose the world's number one e-commerce platform, trusted by over a million stores, and you opt for clockwork consistency, rock-solid reliability, and real performance.

Optimal

Brand-tailored
Theme Setup

From 3 weeks

  • Official Shopify Theme customized to your look & feel
  • Up to 5 hrs of development: layout tweaks, new sections, snippet overrides
  • Basic app hookups (e.g. Klaviyo, Recharge, Yotpo)
  • Performance & SEO baseline tuning
  • Quick A/B funnel experiment setup
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MOST POPULAR

Growth

Theme Setup &
Custom Development

From 5 weeks

  • Everything on Optimal, plus:
  • Up to 10 hrs of development for deeper customization
  • Custom icons, micro-animations & advanced section logic
  • Mid-level integrations (e.g. ERP/WMS connectors)*
  • Cart & checkout funnel deep-dives
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Premium

Design by MALVI

Full Custom
Design & Build

From 8 weeks

  • MALVI's studio crafts your UX/UI from scratch
  • function() engineers a bespoke Shopify theme & apps
  • Headless or hybrid architecture option
  • API integrations & custom workflow automation
  • Ongoing performance benchmarking & hardening
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Plus

Design by MALVI

Enterprise-Grade
Commerce Engineering

From 12 weeks

  • Multiple storefronts, internationalization & localization
  • Shopify Scripts, Flow automations & custom checkout logic
  • Dedicated SLA, 24/7 support & on-call engineering
  • Advanced headless implementations & CDN strategies
  • Scalability audits & uptime guarantees
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Want to build something amazing? Us too.

Check out our full feature list and pricing, and get in touch to start building something great together.

See pricing →
What else we offer
  • Data migration
  • Product catalog creation
  • ERP/WMS connector setup
  • Internationalization
  • Payments & Checkout
  • Shopify Flow automations
  • Headless architecture
  • Replatforming
  • API integrations
  • Performance & SEO tuning

How we build

Official Theme Customization

Shopify's own themes, supercharged. We reshape every layout, tweak every snippet, and sprinkle in bespoke sections—so it feels all-custom without the custom price.

Design-to-Theme Conversion

Got pixel-perfect comps in Figma? We'll spin them into a lean, mean Shopify theme—zero compromise on fidelity or performance.

Full Custom Build

MALVI→ conceives the UX. function() crafts the code. No templates, no hand-me-downs—just commerce experiences engineered from scratch.

Our process

WE START HERE
1.

Audit & Insight

We check your analytics, user flows, and brand DNA to map out the best path forward.

2.

Blueprint & Design

Wireframes, comps, and dev-ready specs. Every decision anchored to your business goals.

3.

Build & Harden

Themes, customapps, integrations—built, tested (performance, security, accessibility), then battle-tested under load.

4.

Launch & Iterate

Go live, watch the data, rinse & repeat for quick-win tweaks. Because "done" is just the starting line.

Step 0? Let's chat.✧

Let us know what you need done. We'll make it happen.

Get in touch →
Our other services

Relentless
Store Support

Code health checks, feature rollouts, emergency fixes—we've got your back so you can focus on your business. Our ticket-to-launch time? Minutes, not days.

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Forensic
Store Audit

We crawl every funnel step—performance, SEO, UX, app bloat—and deliver a punch-list of high-impact wins. Turn hidden leaks into revenue streams.

Learn more →