function() is the leading Shopify development branch of MALVI →
120+ launches across 13 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
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

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

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

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.

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.

Learn more →

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 →