Expert Shopify HydrogenRedesign & e-commerce migration

Faster. Smoother. More profitable.

I'm Clément Martinelli, an e-commerce engineer and former CTO/co-founder. I help brands with Shopify redesigns, Hydrogen migrations and complex e-commerce architectures.

No-commitment audit · Reply within 48h
€12M
Revenue generated
50K+
orders processed
10
people managed

What's your need?

You're on Shopify or another CMS: that's the first filter. Each offer then spells out who it's actually for — and who it isn't.

YOU'RE ON SHOPIFY

Shopify theme redesign or go headless

✓Your theme has aged: dated design, stacked apps, technical debt
✓The site loads too slowly on mobile despite the usual optimizations
✓Every design or journey idea hits a theme limit
✓You're unsure between a Shopify theme redesign and Hydrogen
YOU'RE ON PRESTASHOP / ANOTHER CMS

Migrate to Shopify

✓You spend time securing and maintaining the site yourself
✓Your hosting struggles as soon as traffic grows
✓Every change takes longer than it should
✓Your checkout converts worse than competitors on Shopify
See the CMS → Shopify path →

An architecture that fits the need — not the other way around

Case studies

Sneaker & streetwear e-commerce
SHOPIFY LIQUID → HYDROGEN

Sneaker & streetwear e-commerce

Migration from a standard Shopify theme to a headless Hydrogen storefront, with technical SEO and Core Web Vitals rework.

26 →70+
Mobile PageSpeed
+35%
Mobile checkout

Full data audit, storefront rebuild, SEO redirects and post-launch conversion tracking.

View site →
Furniture & home décor
PRESTASHOP → SHOPIFY + HYDROGEN

Furniture & home décor

Full PrestaShop replatforming for a furniture and home décor e-commerce, with a custom ERP and real-time catalog sync.

440
categories migrated
real-time
ERP sync

Oxygen + Next.js/Supabase ERP architecture, n8n automation, collection hierarchy and metafields preserved for a rich furniture catalog.

View site →
B2B personalized textiles
SHOPIFY + HYDROGEN BUILD

B2B personalized textiles

Built from scratch a Shopify Hydrogen store for textile and promo-product personalization, with a project-specific front end (configurator, catalog, quoting flow).

sync
supplier catalog
100%
custom front end

Custom Hydrogen storefront, catalog sync and configuration flows tailored to the business — not a generic theme.

View site →
TOTHELOVE — lash & hair serums
SHOPIFY LIQUID REDESIGN

TOTHELOVE — lash & hair serums

Full Shopify Liquid theme redesign for a beauty brand: homepage, PDPs and purchase flow rebuilt, without going headless.

+€24
avg. order value
+14%
Mobile conversion

Custom Liquid theme with solid storefront performance and UX — Hydrogen wasn’t needed for the scope.

View site →

An engineer who has run an e-commerce business, not just a website developer

CTO and co-founder of Limited Resell. I ran a real e-commerce business — ERP, marketplaces, repricing, infra — not just a storefront. That product, ops and engineering view is what I bring to every project.

€12M
revenue generated
6,000+
suppliers connected
€800K
gross margin driven
Discover my background →
Portrait of Clément Martinelli, e-commerce engineer specializing in Shopify Hydrogen

Methodology

01

Audit

Data analysis (GA4/Clarity) + mockups before any development.

02

Staged build

Storefront development against the agreed scope.

03

Zero-downtime migration

DNS cutover and SEO redirects designed for zero downtime.

04

Ongoing support

Post-launch follow-up to tune performance and conversion.

FAQ

No. Hydrogen makes sense when a Liquid theme hits its limits (performance, design, app stack). If a Liquid redesign meets your goals, we stay on Liquid — as with TOTHELOVE.

Some front-end apps get replaced by native Hydrogen code; back-office apps (accounting, fulfillment...) stay unchanged.

4 to 12 weeks depending on tier, from audit to migration.

Yes, redirects, URL structure and structured data are audited and reproduced before cutover.

They're audited then reconnected or rebuilt based on criticality, with real-time sync if needed.

Is Shopify holding you back?

Describe your situation. I’ll tell you whether you need a Liquid redesign, Hydrogen, or simply a few targeted fixes.

Or email me directly

Reply within 48h · no commitment