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Expert Shopify Development for Agencies

Smart, scalable Shopify development for fast-moving agencies that demand quality. Invisible to your clients — fully camouflaged, your brand, your rules, your ownership.

Let’s Talk

  • Senior-Level Talent Access

  • Dedicated Project Managers

  • Cross-Platform Expertise

  • High-Code Standards

  • QA & Testing Built-In

  • Agile & Iterative Delivery

  • Post-Launch Support

  • Robust Development Infrastructure

  • NDA

  • Seamless Team Integration

  • Stack-Agnostic Development

  • Responsive Communication

  • Agency-Focused Processes

  • Client-Facing When Needed

  • No Long-Term Commitments

  • Custom Engagement Structures

  • 100+ In-House Developers

  • On-Demand Team Scaling

  • Accelerated Turnarounds

  • Proven Delivery at Scale

  • Pilot Projects Available

Helping Agencies Deliver — Even Under Pressure

All agencies face resourcing challenges from time to time — shifting timelines, skill gaps, and growing project demand can stretch any team.

Whether you're limited by internal capacity, reliant on a single development partner, exploring Shopify as a new offering, or simply stretched too thin to deliver with confidence, we help you scale without hiring. We diversify your delivery options and help you move faster with senior-level web development — seamlessly and behind the scenes.

Do any of these sound familiar?

  • Experiencing capacity constraints that limit your ability to take on new clients?

  • Dealing with unexpected employee leave and need dependable development support?

  • Relying on a single dev partner and considering the benefits of diversifying?

  • Exploring Shopify as a service offering but not ready to hire in-house?

  • Receiving more Shopify project requests than your current team can fulfill?

  • Lacking internal Shopify expertise — like custom app development or headless builds — to meet client demand?

  • Frustrated by flaky freelancers, missed deadlines, and inconsistent results that put client relationships at risk?

  • Feel like you’re overpaying for external dev partners without getting the value or reliability you need?

Relax, We Have a Solution — Let’s Talk

So Many Reasons To Partner With Htmlburger, Here Are Just A Few

Let’s Talk

Pilot Projects Available

Validate our quality and process before scaling.

No Long-Term Commitments

Engage on a project or ongoing basis—your terms, your pace.

Custom Engagement Structures

Per-project, Retainers, dedicated teams —tailored to fit.

100+ In-House Developers

Diverse technical expertise, available on demand.

On-Demand Team Scaling

Ramp up or down based on project velocity.

Accelerated Turnarounds

Built to meet high-stakes agency timelines.

Proven Delivery at Scale

1000+ successful projects across sectors.

Robust Development Infrastructure

Version control, QA, and backups built in.

NDA

We work behind the scenes.

Seamless Team Integration

Tools, workflows, and communication aligned to yours.

Stack-Agnostic Development

From Shopify to React—flexible across tech stacks.

Responsive Communication

Dedicated support with real-time updates.

Agency-Focused Processes

We understand creative workflows, client approvals, and the pressure of launch dates.

Client-Facing When Needed

We can represent your brand in meetings, or stay fully behind-the-scenes—your choice.

Senior-Level Talent Access

Tap into experienced engineers, not just junior staff.

Dedicated Project Managers

Clear communication, proactive updates, and one point of contact.

Cross-Platform Expertise

Websites, web apps, ecommerce platforms, and more—built to spec.

High-Code Standards

Clean, maintainable, and scalable code following best practices and documentation.

QA & Testing Built-In

Manual and automated testing to ensure performance and reliability.

Agile & Iterative Delivery

We work in sprints, with weekly demos, so you're always in the loop.

Post-Launch Support

Bug fixes, updates, and optimization long after go-live.

Custom Engagement Structures

Per-project, Retainers, dedicated teams —tailored to fit.

Accelerated Turnarounds

Built to meet high-stakes agency timelines.

NDA

We work behind the scenes.

Responsive Communication

Dedicated support with real-time updates.

Senior-Level Talent Access

Tap into experienced engineers, not just junior staff.

High-Code Standards

Clean, maintainable, and scalable code following best practices and documentation.

Post-Launch Support

Bug fixes, updates, and optimization long after go-live.

What We Offer

From headless builds to custom apps and everything in between, we help agencies ship better, faster, and without the hiring headaches. You bring the projects. We make them happen.

Let’s Talk

01.

Custom Shopify Theme Development

Tailored themes built from scratch or heavily customized to match your clients’ brand and goals. We follow best practices in performance, accessibility, and maintainability to ensure long-term results.

02.

Ongoing Support & White-Label Maintenance

Flexible monthly support plans — ideal for updates, bug fixes, and managing multiple stores. We blend into your workflow, prioritize your queue, and keep everything running smoothly in the background.

03.

Advanced Shopify Plus Customizations

Unlock Shopify Plus features with script-level checkout edits, automation, and enterprise-ready builds. We work with Shopify Scripts, Flow, and Plus-exclusive APIs to push the limits of the platform.

04.

Migration & Shopify Replatforming

Move stores from Magento, WooCommerce, BigCommerce, or custom platforms — safely, with no data or SEO loss. Our team handles redirects, app equivalents, and full content/data transfers end to end.

05.

Custom Shopify App Development

We create public and private apps to solve specific business needs or integrate third-party systems. From custom dashboards to backend automation, we build tools that extend Shopify's capabilities.

06.

Headless Shopify Store Development

Build ultra-fast, API-driven storefronts using Shopify’s Storefront API and modern frameworks like Next.js or Hydrogen. Headless gives you full control over UX, speed, and scalability for complex projects.

07.

Theme Optimization & Performance Tuning

Speed, accessibility, and best practices baked into every custom theme or optimization pass. We audit, debug, and enhance existing themes to ensure faster load times and better Core Web Vitals scores.

08.

UI/UX Design for Shopify Stores

Designs that convert — from full UI kits to targeted UX improvements for product and checkout pages. Our team combines aesthetics with usability to deliver clean, conversion-oriented experiences.

09.

International & Multi-Currency Setup

Support for global markets with localized UX, translations, currency switching, tax logic, and region-based content. Perfect for agencies serving clients with international audiences.

Scalable & Flexible Engagement Models Tailored for Seamless Agency Collaboration

We offer flexible and scalable ways to collaborate, so you can choose the model that fits your project flow, client needs, and business goals. Whether you need ad hoc support or a long-term partner, we’ve got you covered.

Per Project Quote

Flat-rate pricing for clearly scoped, start-to-finish projects.

  • Ideal for builds, redesigns, or one-time migrations

  • Fixed pricing based on detailed scope and specs

  • Clear milestones, deliverables, and timelines

Monthly Retainer

Ongoing access to development hours with priority support.

  • Best for agencies managing multiple client stores

  • Flexible queue of tasks and structured delivery flow

  • Dedicated developers with deep context over time

Hourly On-Demand

Prepaid or pay-as-you-go hourly dev time when you need it.

  • Great for agencies with unpredictable or ad hoc needs

  • Perfect for small fixes, urgent requests

  • No commitment. Use hours as needed.

Dedicated Dev/Team

Your own developer or team working only on your agency’s projects.

  • Best for high-volume agencies with constant project flow

  • Developers fully integrated into your stack and tools

  • Consistent bandwidth with agency-specific experience

Not sure what fits best? Let’s talk.

How It Works

1.

Schedule a Call

We start with a quick discovery call to understand your needs, workflow, and project goals.

2.

Pick Your Model

Choose one model for all projects or switch it up based on needs, scope, or timing.

3.

Collaborate & Evolve

We plug into your workflow and adapt as your needs evolve - just like an internal team would.

4.9 on Trustpilot with 79 Reviews

Enough talking, our clients will take it from here.

Working with the htmlBurger team has been a huge success! They're good people who care deeply about our business!

Author image

Evan Shoemaker

Founder + CEO, WeBuild

Working with htmlBurger has been a great experience for us! htmlBurger has enabled us to move quickly and expand our portfolio.

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Leila Tudury

Director of Product, Dictionary.com

Our business relies on fast and reliable talent and support. htmlBurger gives us that and much more, while freeing us to do what we do best: great digital design.

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Dino Pelle

Managing Partner, Engage321

Working with htmlBurger is like having a whole team of highly skilled colleagues. A winning team, definitely.

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Sam Maldonado

Co-owner, Wwwanted

We've consistently received the best support, account management, and expert insight you would hope to have from a great web partner.

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Justin Baloun

Founder, Wheat Creative

htmlBurger offer such a great service for designers who don’t like to code.

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Michael Papandrea

Director, Big Creativa

Thanks to the team at HTMLBurger for making our projects much smoother.

Author image

Tod Driver

President, Root Marketing

htmlBurger team goes beyond our expectations by suggesting or implementing things in ways we didn’t realize were even possible.

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Roy Sasson

Chief Executive Officer, eSasson Studios

Great team to work with! Always on time, always pixel perfect, always awesome.

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Ariel Geifman

Head of Marketing, Syte

Very talented. Extremely responsive. I've been working with them for 7+ years and keep coming back.

BP

Billy Peake

Image of stars

Always a pleasure working with this team. Communication is awesome, work product is always on target, and the biggest thing I can say is a always have little to no feedback when I get the final product back. Thanks Simeon and Nate!

KH

Kyle Hudson

Image of stars

Some Of The Work We’Ve Done For Our Partners

Manuka Health

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Marble Theme

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Amber Theme

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Demobaza

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
MMA Warehouse

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Chocolat De Kat

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Tulip

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
Naomi Nomi

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
ReFramed

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.
ITA

Joleen needed some help with the redesign of her store. She came to us with a cool-looking design that needed to be turned into a custom Shopify theme.

Behind the Service

We’ve been supporting fast-moving agencies since 2007 - adapting to tight timelines, shifting scopes, and high client expectations. Today, we’re a 100+ in-house team of developers, designers, QA experts, and tech leads, ready to plug in when you need us.

With nearly two decades of experience and 500+ Shopify builds behind us, we know how to deliver reliable, flexible support that keeps your projects moving. You get consistent quality, clear communication, and full accountability, just like you’d expect from your own internal team.

  • Senior-Level Talent Access

  • Dedicated Project Managers

  • Cross-Platform Expertise

  • High-Code Standards

  • QA & Testing Built-In

  • Agile & Iterative Delivery

  • Post-Launch Support

  • Robust Development Infrastructure

  • NDA

  • Seamless Team Integration

  • Stack-Agnostic Development

  • Responsive Communication

  • Agency-Focused Processes

  • Client-Facing When Needed

  • No Long-Term Commitments

  • Custom Engagement Structures

  • 100+ In-House Developers

  • On-Demand Team Scaling

  • Accelerated Turnarounds

  • Proven Delivery at Scale

  • Pilot Projects Available

10 Things You Probably Want to Know First

We keep things simple, transparent, and built around how agencies work. Here are the most common questions we get answered up front.

Can we start with a small test project?

Yes. Most of our agency clients begin with a pilot to evaluate quality, speed, and fit before scaling.

Is there a minimum commitment or contract?

No long-term contracts. Work with us per project, retainer, or as needed—totally flexible.

Are your developers in-house or outsourced?

All of our developers are full-time, in-house team members. We don’t outsource anything.

Can we switch collaboration models later?

Absolutely. You can change models anytime based on project size, scope, or urgency.

How fast can you start on a project?

We can usually kick off within a few business days, depending on the project type and scope.

Do you offer design as well as development?

Absolutely. We have in-house UI/UX designers who specialize in ecommerce and Shopify-specific flows.

Can we use our own tools and processes?

Yes. We integrate into your workflow—Slack, Jira, Notion, Figma, GitHub, whatever you use.

Do you handle client communication?

We typically stay behind the scenes, but we’re happy to join client calls or communicate directly sometimes if needed.

Can we work on multiple projects at once?

Yes. Most agencies work with us across multiple brands or projects in parallel—no problem.

Can we scale the team up or down anytime?

Yes. You can ramp resources up or down based on project volume—no lock-in, no delays.

Sounds Interesting?Let's Have A Conversation

Whether you’re ready for a scoped quote or want to schedule a discovery call, fill out the form below — we’ll be in touch shortly.

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