E-commerce development

We are experts in building fast, scalable e-commerce stores that “sell.” All our solutions are headless and built with Next.js, using Medusa.js for creating modern, high-performing storefronts. We also develop in Shopify for a quick go-to-market solution or in WooCommerce.

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01Our e-commerce development offer

A top-performing online shopping site is not merely based on slick design; it has speediness, scalability, and hassle-free user journeys. Hence, we build Next.js storefronts with headless CMS options like Shopify, Medusa.js, Payload, and Strapi. We also support BigCommerce, providing seamless integrations and customizations to match your business needs. Be it custom headless or polished WooCommerce stores, we will optimize everything from SEO down to performance and content management with uttermost ease. But the development is just the starting point. We remain engaged, fine-tuning speed, integrating third-party tools while moving the store along as the business grows.

Have an e-commerce site already but dealing with lousy load time and lower conversions? A Next.js migration would literally revamp your platform to better performance along with a more refined UX. However, if you want to stay with WordPress, we ensure that your WooCommerce installation works optimally—resolving plugin conflicts, ramping up performance, and extending your functionality. Beyond the technology, we do user-behavior analytics and can point out friction points that lose conversions. A smooth and intuitive shopping experience is no longer a luxury; it is a must-have. And we ensure you get it.

project view

Check out this e-commerce site's case study!

NextJS + Headless e-commerce CMS

What build quality e-commerces, fast and modern front-end with Next.js and headless CMSs, powering the back end. Our preferred setup shop is Shopify, and we feel confident about it as it is reliable and has a relatively quick go-to-market time. Once we hit the limits of off-the-shelf applications, we usually create a headless custom offering using tools like Medusa.js, BigCommerce, Magento: this way, we can determine content management in its entirety while keeping performance lightning fast on the front end. Every store we develop is done with SEO, scalability, and smooth UX in mind so that businesses can grow unhindered by technology. It is not only about creating a store; it is all about maintaining it, optimizing it, and evolving it. We are involved in fine-tuning performance, adding third-party tools, or building features, and our hands stay on everything to ensure it always runs well.

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Migration to NextJS

Struggling with slow load times, scalability issues, or poor SEO? Well, we can make it all disappear by migrating your frontend to Next.js, making your store fast, efficient, and SEO-friendly. But we don't just move the code and call it a day. During a migration, we look closely at your UI/UX: What is working, what isn't, and what can be improved? If possible, we will refine the design along the way so that your web store ends up looking clean and fresh as well as performing better. In the end, a smooth migration that resolves any technical impediments would actually allow the best user experience.

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E-commerce on WooCommerce

WordPress and WooCommerce remains a go-to choice for many e-commerce businesses, especially those just starting out. If your store runs on WooCommerce, be it a fresh build or a legacy installation, we can assist. New store? We will build it under WooCommerce that works great, delivers great performance, and is customized to your business. Do you run a store and are now facing performance issues, plugin conflicts, or legacy setups? We provide ongoing support, help troubleshoot, install new plugins, and help you elevate your store's functionality. There are quirks in WordPress, but in most cases there are easy solutions to any of your e-store problems. We can also implement a headless WooCommerce setup using Next.js, giving you greater flexibility, improved performance, and a modern frontend experience.

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UX audits for e-commerce

Low conversion rates, abandoned carts, frustrated users—if this resonates with you, it's time to get a UX audit. We're looking at how your online customers engage with your e-commerce store, their friction points, and what interfered with the final. Slow checkout process? Confusing navigation? Poor mobile experience? Whatever is, we dig deep to find it and offer straightforward actionable improvements. Serenity isn't only restraining issues; it's in providing a much easier and more intuitive shopping experience so that shoppers stay engaged and conversions happen. Don't you want to know more about it? Please check out our UX audit services for details.

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02E-commerce development process

Analysis

audit / high level scope / CMS selection / budgeting

Planning

define requirements /  user stories / timelines /  resource allocation

Design

wireframing / UI/UX design /  prototyping / user interface design 

Development

implementation /  Next.js features (SSR, SSG) / API integration / initial testing  

Quality assurance

performance & usability testing / security assessments / bug fixing

Deployment and support

production deployment / CI/CD / monitoring / maintenance / updates

Ready to launch your e-commerce vision?

Share your idea, and we’ll turn it into a fully functional online store using Next.js. Start your project today with just one easy step!

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Analysis

Planning

Design

Development 

Quality assurance

Deployment and support

It's the first phase of an e-commerce project. Analysis must happen before writing any actual line of code or before taking any bit of wireframe shape. In other words, this is the point of determining the crucial goals and objectives for the e-commerce website. This is also the point where very hard questions must be asked: How big is the store? What's the CRM/ERP systems we need to integrate with? Who is it for? How will the whole thing scale? Smart decisions now will avoid most costly detours later on.

And then: an audit - the whole works. Examining the existing tech stack and understanding what the business is trying to achieve and where the pain points exist. What works? What holds things back? Based on facts, not assumptions. Then the high-level scope comes into play. What's in, what's out? Clear definitions eliminate scope creep before it even has a chance to begin. Then comes the CMS selection: How flexible is it? Headless? Traditional? Custom-built? The right decision will shape future agility. Of course there is the budget- real numbers. Development, hosting, maintenance, and all future scaling must fit in financial reality. It's less about cutting costs and more about ensuring money is spent wisely.

03Latest e-commerce projects

Place for your dream project!

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Need to migrate your e-commerce codebase?

Let’s make it seamless. Whether you are moving to Next.js or refining your store for scalability, we will do the heavy lifting for you. Contact us to get the migration done smoothly.

What do you want to talk about?

How can we contact you?

You consent to being contacted by e-mail for the purpose of handling this request.

Increase sales and maximize conversions

Boost performance, stability, and growth

People do not bother with slow websites. If an e-commerce store takes more than a few seconds to load, customers are gone—probably to a competitor. A performance-first approach eliminates that danger. With server-side rendering (SSR) and static site generation (SSG), pages load instantly, no matter how many products or categories exist. This keeps bounce rates low and engagement high, making it easy to browse, compare, and, most importantly, buy. Yet, there’s much more to it than just performance. A completely smooth, intuitive UI will guide users toward checkout with minimal friction. Clean layouts, accessible design, and smart interactions ensure that every single touchpoint—from homepage to product page to cart—is seamless and frustration-free. The result? A streamlined shopping experience that not only converts visitors into buyers but also turns first-time shoppers into loyal customers.

Speed and usability aside, personalization is what sets a high-performing e-commerce site apart. Dynamic content adjusts to each particular user, showcasing relevant products, personalized recommendations, and exclusive offers in real-time. No more static, one-size-fits-all storefronts—customer experiences are adapted to feel as if the site was built just for them. This not only increases purchase intent but also contributes to a higher average order value, as shoppers are more likely to add suggested items to their cart. And let’s not forget mobile users—responsiveness ensures that browsing and buying remain smooth regardless of the device used. When fast, fluid, and relevant, an e-commerce site doesn’t just function as an online store but as a high-conversion sales machine.

Traffic spikes can make or break an e-commerce business. Viral campaigns, Black Friday, a new product launch—any of these can bring down an unprepared site. That’s why the right infrastructure is designed to be scalable by default. Edge functions and intelligent caching ensure consistent performance even under heavy loads. Pages don’t slow down, transactions don’t fail, and customers aren’t left staring at broken checkout screens. API optimization further ensures backend requests work efficiently, avoiding bottlenecks that could cripple the user experience. Effectively, your site remains fast, functional, and reliable—even when handling thousands of visitors at once. Whether selling a dozen products or thousands, scalability adapts to business growth without costly reworks or downtime.

Of course, scalability is not just about handling more traffic—it’s about future-proofing for long-term growth. A modern e-commerce site integrates seamlessly with headless commerce stacks, allowing businesses to expand effortlessly. Want to add a new payment gateway? Offer a subscription model? Sell in a new country? No problem. A modular architecture enables new features to be plugged in without a complete rebuild. Unlike outdated platforms that require constant overhauls, a well-built e-commerce site ensures you can scale strategically—so you can focus on selling, innovating, and staying ahead of the competition instead of worrying about technical limitations.

04FAQ

What types of companies do we usually work with?

Are the e-commerce development consultations free?

What’s the standard length of the e-commerce project?

What team works on an e-commerce website development?

What happens if I am not satisfied at any of the steps of the e-commerce development?

How much does an e-commerce website cost?

Do I need AI in my e-commerce project?

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06Our clients

They’ve already trusted us.

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07Testimonials

Over the last few years I have had a pleasure to work with Dev and Deliver team on various digital projects including mobile applications and web development. DnD has a wide range of expertise and for that reason we have been able to capitalise their skills in various IT fields. Apart from providing our company with front end development, they have also supplied our company with API and CMS solutions for complex projects. DnD provides a reliable service and out of the box solutions to deliver the best final product possible. I’m more than happy to recommend the services of Dev and Deliver, as they are a group of dedicated and supportive professionals.

Chad / Group Managing Director

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Next.js e-commerce specialists from Kraków, Poland

Dev and Deliver

sp. z o.o. sp. k.

Address

Józefitów 8

30-039 Cracow, Poland

VAT EU

PL9452214307

Regon

368739409

KRS

94552994