Some projects need two specialists. Others need one developer who owns the entire build without a handoff in the middle. When you hire a full-stack developer from KiwiCommerce, you get certified eCommerce professionals who handle both the storefront and the server-side logic behind it. Adobe Commerce Certified. Shopify Experts. Hyvä Bronze Partner.
A full-stack developer only works when they genuinely understand both sides of the platform. Our developers are eCommerce specialists first, certified on the platforms they build on, not generalists adapting to whatever stack a project requires.
Get In TouchWhen one developer owns both frontend and backend, there is no gap where problems hide. No blame between teams when something breaks across the stack. One person, one build.
Our full-stack developers are certified on specific platforms, Magento, Shopify, WordPress, not web generalists who adapt per project. Certification comes from the platforms themselves.
One developer is accountable for the entire build: the data layer, the integration APIs, the storefront code, and how all three perform together under real traffic.
Frontend and backend deliverables are documented in milestones before a line of code is written. No scope creep disguised as clarifications mid-build.
A full-stack developer is not a generalist who knows a little of everything. On eCommerce, they need genuine depth on both sides: the storefront layer customers interact with and the backend systems that process every order, query, and integration behind it.
Our full-stack developers are eCommerce specialists first. They have built stores on Magento 2, Adobe Commerce, Shopify, and WordPress from the ground up, and they understand what each platform requires at every layer. When one developer owns the full build, decisions happen faster, code quality stays consistent, and there is a single point of accountability for everything.
The work covers end-to-end store builds, custom modules, and themes development, API and ERP integrations, platform migrations, performance work across both layers, and headless React builds connected to Magento or Shopify backends via GraphQL. Ongoing retainer support after launch is available on every platform we work on.
For agencies, our full-stack developers work under your brand with no KiwiCommerce references in code, commits, or documentation. NDAs are signed on every engagement
Discuss Your Project5+ Experience Years
Works across both sides of a Magento 2 or Adobe Commerce store. Proficient in PHP, Magento's module architecture, and theme development. Builds a custom extension and the frontend UI that uses it handles admin configuration and third-party integrations without splitting the work across two specialists.
7+ Experience Years
Senior-level builds covering complex B2B module customisation, GraphQL API development, multi-store configuration, cloud deployment, and Hyvä or headless frontend integration. These developers have the architectural depth to design the system correctly from the start and deliver it to Adobe's published standards.
3+ Experience Years
Handles the Liquid-based storefront and the Shopify API and Functions layer that drives backend logic. Builds custom themes, creates Shopify apps, configures integrations with external systems, and handles Shopify Plus setups. The right choice for a complete build or full rebuild handled by one person.
5+ Experience Years
Works at the PHP and theme level for WooCommerce stores, building both the storefront and the backend logic that powers it. Creates custom WooCommerce plugins, handles payment and shipping integrations, builds product templates from scratch, and manages the WordPress database layer.
5+ Experience Years
Builds decoupled architectures where a React or Next.js frontend connects to a Magento, Shopify, or WooCommerce backend via GraphQL or REST APIs. Writes the queries, builds the component library, manages frontend state, and ensures the backend exposes data in the right shape. One developer, both layers.
7+ Experience Years
For complex projects that need technical planning before code starts. Our architects assess the current setup, design the full-stack architecture, and oversee the build from both sides. They identify the decisions that are expensive to reverse before the development team makes them.
What's Included When You Hire Full Stack
From database architecture and backend logic through to theme development and storefront performance, built from scratch on your chosen platform. One developer owns every layer, so the build is consistent from start to finish, with no version mismatches between frontend and backend.
Bespoke Magento modules, Shopify apps, and WooCommerce plugins built to your requirements. Not off-the-shelf components adapted to fit, but written specifically for what your store needs, documented clearly, and built to a standard the next developer can read without a guided tour.
Payment gateways, ERP connections, CRM systems, shipping providers, and marketplace channels are handled across both the frontend and backend. Our full-stack developers integrate cleanly, with no coupling that breaks on the next platform update or makes future development harder to manage.
Moving between platforms requires rebuilding the frontend and backend in parallel. With one full-stack developer owning both, there is no handoff risk between separate teams working on different layers at different paces. The rebuild happens as one coordinated piece of work.
Performance problems on eCommerce stores often cross the frontend-backend boundary. Our developers identify and fix issues at every layer, from database query optimisation and slow API responses to frontend asset loading and Core Web Vitals, without needing separate specialists.
Decoupled architectures where a React or Next.js frontend connects to a Magento or Shopify backend via GraphQL or REST APIs. One developer writes both the query layer and the component library, which removes the communication gap that makes headless projects slow to build.
Every point below is backed by a certification, a named process, or a specific outcome. Generic agency claims are not useful when one developer is accountable for your entire store.
Our full-stack developers hold official Adobe Commerce certifications and Shopify Expert status credentials awarded by the platforms themselves, not self-declared. A full-stack developer who is certified on your specific platform knows how it works at the architecture level, not just the surface.
Our founder holds Magento Master recognition, awarded by Adobe to fewer than 60 developers globally. That depth of platform thinking shapes how our full-stack developers approach architecture decisions, module design, and code standards on every Magento and Adobe Commerce project.
Every build is written for your store. Our full-stack developers do not start from a premium theme, apply your brand, and call it custom. The codebase is yours, built to platform standards, documented clearly, and structured so the next developer who touches it can understand it.
We work as the white-label full-stack partner for digital agencies across the UK. No KiwiCommerce references appear in code, commit history, or documentation. Your client sees your name and your standards on everything. NDAs are signed before any work starts, on every engagement.
Your full-stack developer owns both the frontend and backend deliverables against a single fixed timeline agreed before work begins. Progress is reported against those milestones. If something slips, you hear from us before you have to ask. There is no separate frontend and backend schedule to reconcile.
Every full-stack developer on your project is based in the UK. What you ask for in a brief reaches the person building it directly, no intermediary, no overnight delay, no translation of requirements between account management and a remote team on a different working day.
KIWI Commerce redeveloped my entire website, exactly to my requirements. They worked exactly along with my timeframe and were fantastic to work with. I would highly recommend this company. Thank you Sam and the team!
Great response to tickets. We feel our website is in safe hands with Kiwi. Any issues are fixed very quickly. Great value for money. We have been working with Kiwi for a couple of years now and find them very helpful and easy to get along with. Would highly recommend.
Working with Kiwi Commerce has been a very smooth experience. Their team is responsive, knowledgeable, and always willing to go the extra mile. From development to ongoing support, everything is handled efficiently and with great attention to detail. Highly recommended.
We’ve been working with Kiwi Commerce for ongoing website improvements and support, and the experience has been consistently positive. They are proactive, easy to work with, and quick to respond whenever we need assistance. Great team and great service.
Your questions answered. Cannot find what you are looking for?
A full-stack developer is the right choice when the project is tightly integrated and splitting frontend and backend would create handoff risk, when a single developer can own the full build efficiently, or when you need one accountable point for the whole store. Larger enterprises built with parallel workstreams often benefit from dedicated specialists on each side. We will advise you honestly once we understand the scope.
A general full-stack developer understands web application architecture but will not know Magento’s module system, Shopify’s API rate limits, WooCommerce’s order processing flow, or how payment gateway integration works at the platform level. Our developers are eCommerce specialists who build across both layers, not web developers who occasionally work on online stores.
Magento 2 and Adobe Commerce, Shopify and Shopify Plus, WordPress with WooCommerce, and headless architectures built on React or Next.js connected to a Magento, Shopify, or WooCommerce backend via APIs. Developers are platform specialists assigned to the platform your store runs on, not generalists working across any stack.
Yes, and it is common work for our team. Before starting, the developer reviews the existing codebase across both frontend and backend, identifies what is working and what needs to change, and agrees on the scope with you in writing. No assumptions are made about inherited code quality. Work begins only once the review is done and the scope is signed off.
A complete Shopify store typically takes six to ten weeks. Magento 2 is built with custom modules and integrations, usually taking twelve to twenty weeks for a mid-sized project. Headless architectures and enterprise builds require more time. A fixed timeline with defined milestones is agreed upon before work starts, so you always have a clear picture of when delivery is expected.
Our developers are UK-based and work remotely as standard. This gives you full UK timezone availability, daily communication, and a certified permanent team without the overhead of an on-site hire. If a specific project or phase requires physical presence, that can be discussed separately.
Yes. Fixed-scope projects, such as a single store build, a platform migration, or a performance overhaul, are taken on alongside longer retainer arrangements. Scope, timeline, and cost are agreed upon before work starts. If requirements change during the build, adjustments are discussed openly rather than treated as a reason to renegotiate the whole agreement.
Retainer-based support is available covering ongoing feature development, platform updates, performance monitoring, and issue resolution. Currently, we support over 100 live stores on retainers, many with the same full-stack developer who built the original project. You get continuity rather than a new developer starting from scratch every time something needs attention.
Our UK-based certified full stack team is ready to look at your project. Get in touch today and we will respond within one business day with an honest assessment and a clear proposal covering both the frontend and backend scope.
Get In Touch