Kimai
Four international storefronts, conversion, SEO, promotion and landing-page work since 2019.
Shopify Plus development agency
We're a Shopify Plus development agency: 25+ Shopify launches for DTC and B2B brands in the US, UK and Europe. Senior developers who build storefronts, migrations and custom apps, then support the marketing team's ongoing work: landing pages, campaigns, performance and testing.
What we do
What we build on Shopify
We work with DTC and B2B brands in the US, UK and Europe, from Shopify Plus builds and migrations to the apps and integrations behind them.
Shopify website development
We build online stores for modern brands on Shopify Plus — custom themes built from the design, or headless storefronts where they earn their place.
Platform migrations
Replatforming to Shopify and Shopify Plus, with the catalog, customers, order history and SEO all carried across, including from Magento.
International storefronts
Multi-market storefronts with local currencies, languages and domains, from one codebase or with translation apps like Weglot.
Features
Features and integrations
The custom features and third-party integrations we build into Shopify stores.
Product customization
Product configurators and custom engraving for jewelry brands, build-your-own bundles, and product-finder quizzes connected to Klaviyo.
Checkout, cart & promotions
Duties and taxes at checkout, delivery date selection, gift with purchase, spend-based discounts and free-shipping thresholds, and referral and reward programs.
Integrations & automations
Klaviyo for marketing emails, Yotpo/Stamped/Trustpilot for reviews, Smile for rewards, and Recharge/Skio for subscriptions. Plus warehouse integrations, store locators, product feeds and the automations behind them.
Ongoing work
After launch
The work that continues once the store is live.
Conversion rate optimization
Testing, and landing page design and development.
Performance & technical SEO
Site performance optimization, technical SEO, and conversion tracking for Google and Meta.
Campaigns & peak trading
Landing pages and promotional mechanics for launches and sales, and being on hand through BFCM and peak weeks.
Case studies
Jupiter
An ongoing development partnership across storefront and subscriptions, from product pages to the subscription flow.
Selected clients
- KimaiFine jewelry
- JupiterHaircare
- Irene ForteInnovative skincare
- Héloïse & AbélardEthical jewelry
- BubbleTeen skincare
- EBYSeamless underwear
- CASTFine jewelry
- Published By3D bags and accessories
- LachaumeFloristry house
- Les Belles HeuresScarf fashion
- PerpèteKids' clothing
- RaemiFine jewelry
What clients say
“We are impressed by YYT communication style and how hands-on they are. It feels like an in-house team.”
Jessica Warch
Co-Founder & CEO, Kimai
Platform & apps
Shopify Plus, and the apps we build with
Shopify Select Partner since 2019.
Shopify Plus provides high-volume and high-growth businesses with custom offerings and support beyond the other Shopify plans.
Shopify Plus
Yotpo provides tools to manage reviews and loyalty programs.
Yotpo
Klaviyo is a powerful email marketing platform enabling brands to manage marketing email and automations.
Klaviyo
Full suite of solutions for customer reviews, visual marketing, rewards, VIP tiers, and referrals.
Stamped
Robust subscription app leveraging a modern technology stack.
Skio
Converge helps online stores improve ad performance and attribution accuracy through better tracking.
Converge
How we work
Embedded team, or defined delivery
Embedded team
Senior developers and technical leads with strong eCommerce expertise, joining your team long-term.
Project delivery
Defined builds — replatforms, redesign implementations, integrations, technical SEO and performance optimization.
15years in eCommerce
70brands supported
5+ yearsyrslongest client partnerships
FAQ
Common questions
How long does a Shopify Plus build take?
Most builds take one to three months from kickoff to launch. Migrations, multi-market storefronts and complex integrations take longer. We'll give you a timeline after the first call, once we've seen the scope.
Can you work with our in-house team?
Yes, that's how we work best. Our developers join your Slack, your standups and your repository, and work alongside your team rather than in a separate silo. Our longest partnerships have run for more than five years this way.
Should we go headless, or stay on a Shopify theme?
For most brands, a well-built Shopify theme is the better choice: faster to launch, cheaper to maintain, and compatible with the full app ecosystem. Headless makes sense when you need something a theme genuinely can't do, like complex content structures or a single front end across several markets. We've built both, so we'll tell you which one fits.
Can you migrate us without losing our SEO?
We map every existing URL to its new home with single-step redirects, carry over titles and metadata, keep the pages that earn traffic and links, and watch Search Console closely in the weeks after launch.
Working with us
What to expect
Shared Slack channel
Daily communication with the developers doing the work — no ticket queue in between.
Weekly or monthly calls
A regular cadence to plan and schedule the work, at whatever rhythm suits your team.
Urgent support
We are always reachable when something can't wait.
What we build
Our expertise
YYT delivers bespoke eCommerce experiences thanks to our technology expertise with the main eCommerce platforms, content management systems and marketing service providers.
Contentful
Service — Content infrastructure
- Content modeling
- CMS migration
- Editorial workflows
Software
Service — Software development
- Integrations and middleware
- APIs and backend services
- Infrastructure and hosting
Get in touch
No pitch deck. Just a technical conversation.
Book a call with a technical lead. We'll look at your stack, your roadmap, and where we'd start.
Book a call