Your Shopify store and
email list are both sitting
on untapped revenue.
We fix both.
Shopify development and email marketing under one roof: pixel-perfect builds, revenue-driving flows, and growth systems for eCommerce brands ready to scale.
Trusted by brands across eCommerce, SaaS & Retail
Works with the platforms you use
Primary focus on Shopify and Klaviyo. Experience across HubSpot, Mailchimp, ActiveCampaign, Omnisend, WooCommerce, BigCommerce, and 15+ more platforms.
You're not buying “tasks”
You're investing in a revenue engine for your store and your inbox.
Full Ownership, Zero Headache
No briefing. No follow-ups. No micromanaging. We take complete ownership of your Shopify store and email channel from strategy to execution, so you stay focused on growing your business.
Fast Wins, Then Scale
We don't wait for perfection. We launch fast, track what works, and double down on results. You'll see real revenue impact within weeks, not months.
Results or We Walk
We tie our work to your numbers. If the results aren't there, you're free to leave: no lock-in contracts, no fine print, no excuses.
Your Entire Funnel, Covered
From lead capture to post-purchase retention, we connect every touchpoint. Your store and your inbox aren't separate tactics here, they're one revenue system.
More than an agency:
we're your growth team.
Most email agencies don't touch Shopify. Most Shopify devs don't touch email.
We do both: strategy, design, development and automation, under one roof.
Design, Dev & Automation Under One Roof
Unlike most agencies, we handle everything in-house: Shopify builds, pixel-perfect HTML, revenue-driving flows, and full automation setup. No handoffs. No miscommunication. Figma to inbox, start to finish.
13+ Years, 800+ Projects Delivered
We have built and delivered 800+ projects across Shopify builds and every type of email: campaigns, transactional, flows, and full automation series. That depth means fewer mistakes and faster results.
Your Email Looks Perfect. Everywhere.
Gmail, Outlook, Apple Mail, Samsung Mail. Your emails will render flawlessly everywhere. We test across 50+ client and device combinations before every send.
Revenue-First Approach
Every decision we make, from Shopify UX and page speed to subject lines, flow logic, and send timing, is driven by one question: will this make our client more money? Everything we build is designed to make you money.
Stop juggling 3 vendors. We handle it all.
Shopify development, email strategy, design, and automations, all under one roof.
Stop coordinating between your designer, developer, and strategist.
Full-stack Shopify
& email, under one roof.
From Shopify builds to email flows: every layer, fully covered.
Shopify Engineering
Theme Development, Migration, Speed Optimization & Custom Features.
Klaviyo Management
Klaviyo Account Setup, Flow Setup, Account Audit, Sign-Up Forms & SMS Campaigns.
Email Marketing
Email Design, Development, Campaigns & Automations.
Real clients. Real revenue. Real results.
From Shopify builds to Klaviyo flows. Here's what we've delivered for real brands.
Full Shopify rebuild lifted conversion 24% for a skincare brand
Migrated from a legacy platform to a custom Shopify theme built for speed and mobile conversion, with a streamlined checkout and Core Web Vitals tuned from the ground up.
42% email revenue lift for a DTC fashion brand
Rebuilt their entire Klaviyo automation stack: welcome series, abandoned cart, and post-purchase flows from the ground up with a data-led approach that turned automations into their #1 revenue channel.
New Shopify store and Klaviyo flows drove 3.5× revenue in year one
Built the Shopify store from scratch and layered in a full Klaviyo flow suite, welcome series, abandoned cart, and post-purchase, turning day-one launch traffic into a repeatable revenue engine.
Why PlusSquire over everyone else?
Most agencies look the same on paper. Here's what actually separates us.
✓ Good Fit
- ✓Established brand ready to scale revenue across their store and inbox
- ✓Values long-term partnership over cheap one-off work
- ✓Wants a team that thinks, not just executes
- ✓Open to honest strategy conversations
- ✓Focused on business growth, not just vanity metrics
✗ Not a Fit
- ✗Looking for the cheapest option available
- ✗Needs results overnight with no strategy budget
- ✗Wants someone who just says yes to everything
- ✗Not ready to invest in their store and inbox as revenue channels
- ✗Prefers to micromanage every single deliverable
What our clients
actually say.
Brands trust us with their store and their inbox. Here's what they say.
“Zahidul is one of the best Shopify and email professionals I've worked with. He handles design, development, and Klaviyo flows end-to-end, delivering polished, production-ready work every time. We've worked together for 5+ years now.”
“Our Klaviyo flows went from generating 10% of revenue to over 35% in 3 months. Zahidul knew exactly what to build and why. Highly recommend for any eCommerce brand serious about email.”
“Rebuilt our entire Shopify store from scratch, pixel-perfect and blazing fast. Conversion rate jumped noticeably within the first month, and the handoff was completely smooth.”
“Exceptional HTML email developer. Provided Figma to HTML email development with templates that worked perfectly in Outlook, which is notoriously difficult. Fast, professional, and gets it right the first time.”
“Set up our entire Klaviyo account from scratch. Every flow, segment, and integration was done perfectly. Our abandoned cart recovery alone paid back the entire project cost in the first week.”
“Handled both our Shopify migration and Klaviyo setup end-to-end, one team, zero handoffs, and it just worked from day one. Exactly the kind of full-stack partner we were looking for.”
“Our store loads in under 2 seconds now. Cart abandonment dropped and mobile conversions are up significantly since the Shopify rebuild.”
“Zahidul is one of the best Shopify and email professionals I've worked with. He handles design, development, and Klaviyo flows end-to-end, delivering polished, production-ready work every time. We've worked together for 5+ years now.”
“Our Klaviyo flows went from generating 10% of revenue to over 35% in 3 months. Zahidul knew exactly what to build and why. Highly recommend for any eCommerce brand serious about email.”
“Rebuilt our entire Shopify store from scratch, pixel-perfect and blazing fast. Conversion rate jumped noticeably within the first month, and the handoff was completely smooth.”
“Exceptional HTML email developer. Provided Figma to HTML email development with templates that worked perfectly in Outlook, which is notoriously difficult. Fast, professional, and gets it right the first time.”
“Set up our entire Klaviyo account from scratch. Every flow, segment, and integration was done perfectly. Our abandoned cart recovery alone paid back the entire project cost in the first week.”
“Handled both our Shopify migration and Klaviyo setup end-to-end, one team, zero handoffs, and it just worked from day one. Exactly the kind of full-stack partner we were looking for.”
“Our store loads in under 2 seconds now. Cart abandonment dropped and mobile conversions are up significantly since the Shopify rebuild.”
“Zahidul is one of the best Shopify and email professionals I've worked with. He handles design, development, and Klaviyo flows end-to-end, delivering polished, production-ready work every time. We've worked together for 5+ years now.”
“Our Klaviyo flows went from generating 10% of revenue to over 35% in 3 months. Zahidul knew exactly what to build and why. Highly recommend for any eCommerce brand serious about email.”
“Rebuilt our entire Shopify store from scratch, pixel-perfect and blazing fast. Conversion rate jumped noticeably within the first month, and the handoff was completely smooth.”
“Exceptional HTML email developer. Provided Figma to HTML email development with templates that worked perfectly in Outlook, which is notoriously difficult. Fast, professional, and gets it right the first time.”
“Set up our entire Klaviyo account from scratch. Every flow, segment, and integration was done perfectly. Our abandoned cart recovery alone paid back the entire project cost in the first week.”
“Handled both our Shopify migration and Klaviyo setup end-to-end, one team, zero handoffs, and it just worked from day one. Exactly the kind of full-stack partner we were looking for.”
“Our store loads in under 2 seconds now. Cart abandonment dropped and mobile conversions are up significantly since the Shopify rebuild.”
Ready to turn your store and inbox
into your best sales channel?
Let's Talk →Let's build something
great together.
Whether it's a Shopify build or an email program overhaul, we'd love to hear about your project. We typically respond within 24 hours.
📅 Prefer to talk first?
Book a free 30-minute discovery call, no commitment, just a quick chat to see if we're a good fit.