Gurugram Studio · Overlapping US (EST/PST) & UK (GMT) Hours
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SERVICES DIRECTORY & ARCHITECTURE

Full-cycle Shopify engineering services

Explore our dedicated service architectures below. From bespoke Online Store 2.0 themes and zero-downtime Plus migrations to Hydrogen edge storefronts and Core Web Vitals remediation.

Get a free store audit →Book an architecture call
DEDICATED SERVICE ARCHITECTURES:
SERVICE 01•PRODUCTION ARCHITECTURE

Custom theme development

Purpose-built Shopify 2.0 themes from a token layer, not a bloated marketplace template. Editor-ready sections your marketing team can easily update.

Deliverable & Outcome: A store your team can update without a developer, and code a future hire can read.
✓Modular section and block architecture (Section Everywhere)
✓Design tokens with reusable color & typography presets
✓Zero Theme-Check errors & clean Liquid/CSS handover
Custom theme development
Fixed price · Sprint milestonesExplore Theme Architecture →
SERVICE 02•PRODUCTION ARCHITECTURE

Platform migration to Shopify & Plus

Seamless data, product, order history, and design migration from WooCommerce, Magento, BigCommerce, or custom stacks.

Deliverable & Outcome: A flawless transition to Shopify with zero lost rankings, no broken links, and zero revenue downtime.
✓Complete catalogue, customer, and historical order data transfer
✓Comprehensive 301 redirect map protecting 100% of organic SEO rankings
✓Design parity translation and pre-launch checkout QA checklist
Platform migration to Shopify & Plus
Fixed price · Sprint milestonesExplore Migration Playbook →
SERVICE 03•PRODUCTION ARCHITECTURE

Shopify Plus & Checkout Extensibility

Checkout extensibility, B2B wholesale portals, Shopify Functions and Flow automations for high-volume merchants.

Deliverable & Outcome: Checkout and B2B flows that fit how you actually sell, not how the platform defaults.
✓Custom Checkout UI delivery & payment extensions
✓Shopify Functions (custom discount tiers, shipping validation)
✓Multi-currency, international expansion and B2B wholesale setup
Shopify Plus & Checkout Extensibility
Fixed price · Sprint milestonesExplore Checkout Extensibility →
SERVICE 04•PRODUCTION ARCHITECTURE

Headless / Hydrogen storefronts

Hydrogen and Oxygen storefronts when your internationalization, custom catalog, or sub-second performance needs exceed Liquid.

Deliverable & Outcome: Sub-second page loads and full design freedom when Liquid has hit its ceiling.
✓Hydrogen + Oxygen global edge deployment
✓Storefront API & GraphQL data layer architecture
✓Headless CMS integration (Sanity, Contentful, Strapi)
Headless / Hydrogen storefronts
Fixed price · Sprint milestonesExplore Headless Hydrogen →
SERVICE 05•PRODUCTION ARCHITECTURE

Conversion rate optimization (CRO)

Engineering high-velocity storefront features that turn more store visitors into buyers — custom cart drawers, slide-out upsells, and streamlined checkout.

Deliverable & Outcome: Measurable double-digit lifts in Average Order Value (AOV) and checkout completion using native, lightweight code.
✓Custom slide-out cart drawers with tiered free-shipping goal bars
✓In-cart & post-purchase 1-click upsells and bundle recommendations
✓Shopify Plus Checkout UI extensions and mobile-optimized buy boxes
Conversion rate optimization (CRO)
Fixed price · Sprint milestonesExplore CRO Audits →
SERVICE 06•PRODUCTION ARCHITECTURE

Custom Shopify app development

Private and embedded Shopify apps for unique business logic: custom product bundle builders, tiered dynamic pricing, and wholesale/B2B portals.

Deliverable & Outcome: One-off build cost with zero recurring monthly SaaS fees and zero storefront script bloat.
✓Custom product bundle builders and volume/tiered pricing engines
✓Private wholesale / B2B portals with net-term custom checkout flows
✓Modern full-stack development with Node.js/Remix and Shopify GraphQL APIs
Custom Shopify app development
Fixed price · Sprint milestonesExplore Custom App Dev →
SERVICE 07•PRODUCTION ARCHITECTURE

Third-party & enterprise integrations

Connecting your Shopify store with ERPs, marketing CRMs, global shipping logistics, and custom payment gateways without adding page lag.

Deliverable & Outcome: Automated real-time inventory, order and tracking sync that eliminates manual data entry.
✓CRM & marketing automation sync (Klaviyo, HubSpot, Omnisend)
✓Shipping logistics & carrier integrations (USPS, FedEx, Royal Mail, ShipStation)
✓Custom payment gateways, ERP connections (NetSuite, SAP) and inventory sync
Third-party & enterprise integrations
Fixed price · Sprint milestonesExplore Enterprise Integrations →
SERVICE 08•PRODUCTION ARCHITECTURE

Speed optimization & Core Web Vitals

Code-level performance optimization: removing third-party app bloat, critical render path unblocking, lazy loading, and JavaScript execution tuning.

Deliverable & Outcome: Sub-second mobile pages, lower bounce rates, and a verified before/after Lighthouse report you can show your stakeholders.
✓Third-party app script audit & unbundled JavaScript cleanup
✓Critical CSS generation, modern image formats and asset lazy loading
✓Core Web Vitals pass (sub-1.4s LCP, 0 CLS, and sub-100ms INP) with written report
Speed optimization & Core Web Vitals
Fixed price · Sprint milestonesExplore Speed Optimization →
SERVICE 09•PRODUCTION ARCHITECTURE

Design systems & storefront branding

Storefront design that survives contact with real merchandising — built as an extensible design system, not just one hero screenshot.

Deliverable & Outcome: A storefront that looks premium on every page, not just the homepage screenshot.
✓Storefront UI/UX design in Figma tailored for DTC conversion
✓Comprehensive design systems and responsive token layers
✓Art direction and modular layouts for high-converting PDP content
Design systems & storefront branding
Fixed price · Sprint milestonesExplore Design Systems →
SERVICE 10•PRODUCTION ARCHITECTURE

Maintenance retainer & dedicated SLA

Ongoing development hours for changes, campaigns, and feature releases, with a named engineer and a shared backlog.

Deliverable & Outcome: A named engineer on call, so campaigns and fixes never wait on a hiring cycle.
✓Dedicated monthly hour block with rollover options
✓Priority bug response SLA with same-day emergency cover
✓Quarterly speed, security, and Core Web Vitals health audits
Maintenance retainer & dedicated SLA
Fixed price · Sprint milestonesDiscuss Maintenance Retainer →
WHY DEVAN LABS

Why US & UK DTC brands choose Devan Labs

We are a remote-first Shopify engineering studio headquartered in Gurugram, India, operating with deliberate working-hour overlaps for US (EST/PST) and UK (GMT/BST) client teams.

40+

Stores shipped, not slides

We are engineers first. Every proposal comes from someone who will actually write the code.

4 wks

Predictable timelines

Fixed scope, fixed price, weekly demos on a preview theme. You always know where the build is.

100%

You own everything

Code ships to your Shopify account and your repo, documented. No licence fees, no lock-in.

1 day

We actually reply

One business day response, named engineer on every project, scheduled calls in your working hours.

90+

Performance is a deliverable

Speed targets are written into the scope, with a before and after report on handover.

3

Timezones covered

IST base in Gurugram with deliberate overlap into US, UK and EU hours.

FREQUENT QUESTIONS

Everything you need to know before partnering

How fast can you start?+
Usually within one to two weeks. Audits we can turn around in three business days regardless of the build queue.
Do you work in our timezone?+
We're IST-based in Gurugram and deliberately overlap with US, UK and EU hours. You get scheduled calls in your working day, not ours.
Who owns the code?+
You do, completely. Everything ships to your Shopify account and your repo, documented, with no lock-in or licence fees.
What if we already have a theme we like?+
Then we don't rebuild it. Most Growth engagements are conversion and performance work on top of an existing theme.
Do you offer ongoing support?+
Yes — a monthly hour block with a named engineer, priority bug response and a quarterly performance review.
DIRECT ARCHITECTURE REVIEW

Let's look at your store together

A 20-minute architecture call, or a written 40-point audit in three business days. Fixed scope, fixed price sprint, and zero retainer talk until you request it.

Request Free Store Audit →