Ecommerce Development Services
An Ecommerce Development Company That Ships Stores That Sell
An online store is not a website with a cart bolted on. It is a catalogue, a checkout, a payment stack and a row of back-office systems that all have to agree with each other. We pick the platform that fits how you actually sell, then build the parts no platform gives you.
Triple Protection Guarantee
- US-Registered Entity
- Signed IP Assignment
- Senior Engineers Only
Triple Protection Guarantee:
- US-Registered Entity
- Signed IP Assignment
- Senior Engineers Only
Years In Business
0
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Engineers On Staff
0
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Avg. Engineer Exp.
0
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Where Stores Slip
Platform Choice
Fit To Model
Senior Engineers
Vetted Only
Timezone Overlap
Live Hours
Checkout Flow
Tested Live
Delaware LLC
US Entity
Catalogue Data
Kept In Sync
Core Web Vitals
Every Build
Integrations Mapped
Before Code
Payment Stack
PCI Aligned
IP Assignment
Signed
Delivery Overlap
Fixed
Hours
Storefront Owner
You
Trusted By Startups
What Our Ecommerce Development Company Does
An ecommerce development company earns its fee in the places a store quietly loses money. A checkout that drops buyers on the payment step. Product data that three systems each hold differently. An ERP connection scoped after the build. A homepage that loads fine on a laptop and crawls on a four-year-old phone. We start with how you sell, choose the platform against that, and treat catalogue, checkout and integrations as the engineering they are.
Stallyons is registered in Delaware as a US company, and our engineers work a time-zone window agreed before the project starts, with four-plus hours of daily overlap. You sign a US contract, run diligence on a US entity and pay one US invoice. Behind the work sits twelve-plus years of delivery across six continents and around thirty-five engineers, averaging four-plus years of production experience. Retailers and brands come to us when a store has to handle a real catalogue, real payment rules and real traffic rather than a demo dataset.
What An Ecommerce Build Covers
A platform decision made against your commercial model rather than a preference: catalogue size, order volume, wholesale rules, tax and shipping complexity and the systems already in place, all weighed before anyone writes code.
A storefront built for the way people really shop: fast category and search pages, product data that stays consistent, and a checkout tested on the devices and payment methods your customers use.
Integrations designed in rather than bolted on: ERP, order management, PIM, CRM, tax, shipping and marketing tools connected with clear ownership of which system holds the truth for each field.
Payments handled properly: gateway selection, multi-currency, wallets, fraud screening, strong customer authentication and a PCI-DSS-aligned setup agreed before launch rather than after it.
Quality you can inspect: code review on every merge, automated tests, load testing before peak season, and work tracked on your own board where you can read it.
One accountable vendor: one contract, one invoice and one entity for legal and finance to run diligence on, instead of a spread of contractors across four jurisdictions.
Why Buyers Screen An Ecommerce Development Agency Hard
- Ask how they choose the platform. If the answer is the same platform every time, you are buying their comfort zone rather than a fit to the way you sell.
- Ask what happens to your product data. Catalogue, pricing and stock live in more than one system, and somebody has to decide which one wins each field.
- Ask who tests the checkout, on which devices and with which payment methods. Checkout holds the money and is the least tested part of most builds.
- Ask when integrations get scoped. ERP, tax and shipping connections discovered halfway through a build are the most common reason an ecommerce project slips.
- Check the exit before you need it. The store admin, the repositories, the domain and the payment accounts sit in your own name, so changing supplier is administration.
- Ask what happens at peak. Traffic spikes, stock accuracy and a rollback route should be agreed before the busiest week of your year rather than during it.
How An Ecommerce Project Starts With Us
Every project starts with a free 45-minute scoping session. No slide deck, no sales script. You bring the catalogue, the customers and the systems you already run; you leave with a build plan and a timeline.
We are selective about new projects and cap how many we run at once, because the scoping is the product. If your store needs a fix rather than a rebuild, we will say so before you buy one.
Why Clients Choose Us
Full
Written IP Transfer
USA
Contract Entity
Yours
Store Admin Access
Named
Delivery Lead
Ready to build a store that holds up at checkout?
What We Build For Commerce
The Ecommerce Development We Deliver
Every store is different and the underlying jobs repeat: choose the platform, build the storefront, wire the catalogue and checkout, connect the back office and keep it fast. These are the builds we deliver most often.
Custom Online Stores
Built for your catalogue and checkout
End-to-End
Headless Builds
Storefront split from the backend
Fast Front End
Wholesale Portals
Account pricing, quotes, net terms
Bulk Buy
Marketplace Platforms
Multi vendor, payouts, ratings
Live In Production
Subscription
Recurring billing and dunning
Repeat Sales
Checkout & Payments
Gateways, tax, fraud checks
Converts
APIs And Integrations
ERP, OMS, CRM and shipping tools
Linked
Speed & Core Vitals
Page weight, caching, image pipelines
Measured
Catalogue And Search
Product data, filters, merchandising
Easy To Find
Support & Releases
Monitoring, fixes, peak season prep
Kept Running
Not sure which platform fits? Let us map it to your model.
Common Challenges
Why Do Ecommerce Projects Break?
Six patterns behind almost every store that has to be rebuilt. All six start with a decision made before anyone read the numbers.
Platform First
01
The platform is chosen in the first meeting, usually the one the agency knows best. The catalogue rules, wholesale pricing or tax complexity that make it a poor fit only surface once the build is underway.
Checkout Leaks Sales
02
Checkout works in testing and leaks in production, because nobody tried it on a slow phone, a foreign card, a saved address or a wallet payment.
Catalogue Data Rot
03
Product data lives in a spreadsheet, the ERP and the store at once. Prices and stock drift apart, and support spends its week reconciling three answers.
Bolted-On Systems
04
The ERP, tax and shipping connections are scoped after the storefront is built. Each one turns out to need fields the catalogue was never designed to carry.
Slow On Actual Phones
05
The site is signed off on a designer's laptop. Real customers arrive on mid-range phones over mobile data, where the image pipeline and third-party scripts decide the sale.
Peak Season Untested
06
Nobody load tests before the busiest week of the year. Peak traffic finds the slowest query, and the store degrades exactly when it matters most.
Recognise a few of these? Let us fix it properly.
Our Ecommerce Services
Our 6 Ecommerce Development Services
Six ways to buy store delivery from one accountable vendor. Run one, or run several in parallel under a single contract.
Custom Ecommerce Development
01
End-to-end delivery of a defined store: scope, platform choice, design, build, catalogue and checkout, testing and launch, with a named lead who reports into you.
Ecommerce UX Design
02
Category, product and checkout journeys designed around how your customers browse and buy, prototyped in Figma and handed over as a working front end rather than flat images.
Platform Selection Help
03
An evidence-based platform recommendation, weighed against your catalogue, order volume, wholesale rules and the systems you already run.
Checkout And Payments
04
Gateway selection, multi-currency, wallets, fraud screening and tax rules, tested across the cards and devices your customers actually pay with.
Backends & Integrations
05
The systems behind the store, built by our own API development practice: ERP, OMS and CRM connections, webhooks and stock sync.
Store Support & Optimisation
06
Monitoring, bug fixes, conversion work and peak-season readiness after launch, so the store keeps earning instead of quietly degrading month by month.
Not sure which piece you need first? Let us scope it together.
Why Choose Us
What Makes Our Ecommerce Development Company Different
The details that decide whether a store still converts when real customers arrive on real phones.
A US Legal Entity
01
Stallyons is registered in Delaware. Your contract, your invoice and your legal recourse sit with a US company, not an unknown one.
Platform Fit First
02
We recommend the platform your model needs, and we will tell you when the one you already run is fine and only needs work.
Overlap You Set
03
You choose the hours we share with your working day, and stand-ups, reviews and escalations all happen inside that window.
Checkout Obsession
04
Checkout gets tested like production: real devices, real payment methods and real edge cases, because that is the screen deciding revenue.
Reviewed Code
05
Every merge is reviewed against an agreed definition of done, on your board, where you can read it yourself.
One Contract
06
One contract covers the engagement, so procurement, legal and finance each deal with a single named counterparty.
Ready to see what a proper store build looks like?
Our Process
From First Call To Store Launch In Six Steps
A build process that settles the platform, the catalogue and the checkout before any screens.
Discovery
Understand the customers, catalogue and model
Scoping
Agree the platform, the scope and the cost
Design
Category, product and checkout flows in Figma
Contracting
NDA, IP assignment, access and onboarding
Deliver
Built in sprints, reviewed on merge
Launch & Tune
Soft launch, then read the funnel data
Want to see how this maps to your roadmap?
Technology Stack
What Our Ecommerce Developers Build With
The platforms, services and tooling we build online stores on, and the systems we connect them to.
Platform Layer
Shopify Builds
Magento Stores
WooCommerce Shops
BigCommerce
Headless UI
Catalogue & Merchandising
Product Data
Search & Filters
Media Assets
Locales
Merchandising Tools
Checkout Stack
Payment Gateways
Tax & Duties
Fraud & 3-D Secure
Subscriptions
PCI-DSS Aligned Setup
Back-Office Links
ERP & Finance
OMS & Stock
CRM & Email
Node Integrations
REST & GraphQL
Build & Deliver
React Front Ends
GitHub CI/CD
Speed Testing
Error & Uptime Alerts
Analytics & Events
Who We Build This For
Ecommerce Development Services For Every Kind Of Store
Eight kinds of retailer with different catalogues and one shared need: a store that converts on the first visit.
Fashion & Apparel
Variants, sizing, easy returns
Furniture & Homeware
Big items, freight, lead times
Beauty & Wellness
Subscriptions, bundles, refills
Food & Beverage
Slots, freshness, delivery windows
Industrial & Trade Supply
Quotes, net terms, bulk pricing
Digital Goods & Media
Licences, entitlements, access
Multi-Brand Retail
Many stores, one back office
Marketplaces & Vendors
Onboarding, payouts, ratings
Working in another sector? See all industries we serve.
How We Compare
Your Ecommerce Development Options, Compared
An honest look at your four delivery options.
| Capability | Template Store Shop | In-House Generalist | Freelance Developer | Stallyons Technologies |
|---|---|---|---|---|
| Platform selection | ✕ One platform only | Whatever is known | Personal preference | Weighed against your model |
| Product data ownership | ✕ Not considered | Spreadsheet wins | Store only | One source per field |
| Checkout and payments | Default flow | Card testing only | Sometimes included | Real devices and wallets |
| Back-office integrations | ✕ Out of scope | Separate team | Simple endpoints | Scoped before build |
| Speed and Core Web Vitals | ✕ Theme defaults | Fixed after launch | Varies by build | Budgeted every build |
| Peak season readiness | ✕ Never tested | Hope and watch | ✕ No rollback plan | Load tested with a halt rule |
| Admin and code ownership | Varies | Your own accounts | ✕ Held by developer | Yours from day one |
See the difference for yourself
Complete Engagement
Everything Included In Your Ecommerce Development
From Scoping to Contracting to Delivery, One Vendor
Here is everything included when you build your store with us:
One Ecommerce Build Price: No Hidden Fees, No Surprises.
Every ecommerce engagement includes all eight components above. One contract, one senior team, one predictable cost, and no vendor sprawl.
🔒 No obligation. We'll deliver a detailed proposal within 48 hours.
Plus, Get These Free Bonuses
Free Store Review
A written read on your platform fit, catalogue data, checkout and page speed, with the fixes ordered by what is costing you the most orders.
Included Free
Build Plan And Estimate
A phased build plan with scope, milestones, the integrations it needs and a transparent, itemised estimate for the engagement.
Included Free
Free Vendor Checklist
The questions we would ask any ecommerce development agency about platform fit, checkout, integrations and peak load, so you can test us too.
Included Free
Risk-Free Partnership
Our Ecommerce Development Promise
We stand behind every engagement with commitments that protect your investment.
01
Scope Agreed First
Scope, model, working hours and cost structure are written down and agreed before contracting, so nothing is discovered later.
02
Built to Last
Senior developers, code review, automated tests, security and accessibility audits, and clean, documented code you fully own.
03
IP And Access Protected
NDA and IP assignment are signed before access, permissions are scoped per person, and your accounts stay under your control.
Start your store build with confidence, backed by our Triple Protection Guarantee.
Track Record
Engagements That Ship, Scale, and Compound
500+
Projects Delivered
29+
Service Categories
81%
Repeat Client Rate
4.9 ★
Clutch Rating
"Stallyons took our Figma design and built it into a live web application, a cognitive game with level-based match play, messaging, a tutorial, and a directory that ranks users nationally. What impressed me most was their grasp of the code behind that logic, and the quality of the experience. Delivered on time with steady updates."
Jerry L.
Founder
PicCiti LLC
"We brought Stallyons in to absorb an overflow of work, and they delivered ten iOS and Android apps, from reporting to geo-location for logistics, plus several backend systems, owning design, development, and app-store submission. Everything stood out: code quality, speed, and reliability. Perfect code, on time, adopted company-wide."
William B.
Director
Amplo Solutions
FAQ
Frequently Asked Ecommerce Development Questions
Ecommerce development is the work of turning a commercial model into a working store: choosing a platform that fits how you sell, building the catalogue and category pages, wiring a checkout to payment, tax and shipping providers, connecting the back-office systems that hold stock and orders, and keeping the whole thing fast and secure once real customers arrive. Design is part of it. Most of the cost sits in the plumbing.
By working backwards from the business rather than forwards from a preference. Catalogue size, order volume, wholesale pricing rules, tax and shipping complexity, the systems you already run and the team who will operate the store day to day all narrow the field quickly. We then build on whichever platform survives that test, whether that is Shopify, Magento, WooCommerce or BigCommerce.
Cost follows the size of the catalogue, how custom the checkout has to be, how many back-office systems need connecting and whether the store carries wholesale rules alongside retail, so a figure before scoping is guesswork. Integrations move the number more than design does. We scope first, then price, and itemise each phase so you can cut before you commit.
Ask how they pick the platform and what evidence sits behind the answer. Ask who owns the product data once three systems hold it. Ask which devices and payment methods the checkout is tested on. Then ask what happens during your busiest week, and who holds the store admin and the repositories. The answers separate a builder from an order taker.
You do, from the first day. The store admin, the repositories, the domain, the payment accounts and the analytics properties are registered in your name, and NDA and IP assignment are signed before anyone gets access. Everything written on the engagement is assigned to you outright, with no licence-back.
Both, and the choice is a cost decision rather than a principle. Where a well-supported app does the job we install and configure it well, because you get its updates without paying to maintain them. Where an app would force your process to bend, or charges per order forever, we build the feature and hand you the code.
Often. We start with a read of the store as it stands: platform version, theme and extension debt, catalogue quality, checkout behaviour, page speed and the integrations already in place. That produces a list of fixes ordered by revenue impact, and a straight answer on whether the store is worth improving or worth replacing.
Yes, and it is a distinct piece of work with its own risks around URLs, historic orders and customer records, so we scope it separately rather than folding it into a build. Redirect maps, order history and customer accounts each need their own plan and their own sign-off. If moving platform is the actual project, start on our ecommerce migration services page instead.
Still have questions? Let's talk.
Schedule an appointment with us today!
Ready To Build An Ecommerce Store That Sells?
Get a free consultation. We will walk your store, name what is costing you orders, and send a written proposal.
