Custom eCommerce Software Development Services
Take your eCommerce operation further with backend systems built for real scale. We deliver end-to-end software solutions tailored for multichannel sellers and 3PLs.
eSellerHub: We engineer every layer of commerce
eSellerHub builds centralised eCommerce systems — backends and frontends that align operations, reduce friction, and boost reliability. Our custom software integrates with your stack so your business runs smoothly.
Building end-to-end eCommerce Software
Inventory Management Software
Real-time stock control across warehouses and channels.
Order Management Software
Unified order flow and exception handling across marketplaces.
Returns Management Software
Seamless returns processing, restocking and reporting.
Accounts Management Software
Integrate financial operations or embed accounting modules.
Catalog Management Software
Control your listings and product data across channels.
Warehouse Management Software
Efficient picking, packing, and stock handling across sites.
Seller Management Software
Manage vendors, relationships and interoperability across sellers.
Multi-Marketplace Retailing
Single backend to power multisite, multichannel operations.
FBA & FBM Software
Amazon workflows, inventory sync, performance reporting, order routing.
A holistic approach to empowering eCommerce
01
eCommerce App / Web Development
We build scalable storefronts and PWA / web apps to match your brand and workflows.
02
Business Consulting
We help identify process gaps, automation opportunities and growth strategies.
03
Software Integration & Migration
We upgrade or connect your existing systems: ERP, carriers, analytics, accounting.
Optimise, Automate and Scale your warehouse operations with confidence.
Growth across every business model
Whether you’re scaling direct-to-consumer sales, managing complex wholesale operations, running a multi-vendor marketplace, or integrating with manufacturer networks, eSellerHub delivers custom eCommerce software built for the UK market. Our solutions adapt to how you sell, not the other way round.
B2C Retailers
UX-first systems built to support growth, conversions and retention.
B2B Sellers
Complex pricing, bulk operations, and integrated transitions for enterprise models.
Marketplaces
Aggregated operations, vendor onboarding, commissions, returns.
Manufacturers
Order flow, inventory transfers, vendor & distributor workflows.
Transforming eCommerce with trusted expertise
With over 10 years’ experience, we combine domain knowledge and engineering discipline to deliver systems that scale. Our team includes developers, business analysts, and test engineers — all focused on commerce operations.
10+ years of commerce experience 
200+ tech experts 
Domain expertise across marketplaces and retail Digital World News
Frequently Asked Questions
1. What is custom eCommerce software?
Custom eCommerce software is designed around your specific workflows and operations, unlike off-the-shelf platforms. It adapts to your processes instead of forcing you to adapt to it.
2. does custom software support multichannel sellers?
It centralises inventory, orders, and returns across Amazon UK, eBay, Shopify, and other channels. This reduces overselling, removes manual errors, and improves fulfilment speed.
3. Can eSellerHub integrate with my existing systems?
Yes. We integrate with ERP systems like Sage or SAP, accounting tools like Xero and QuickBooks, carriers such as Royal Mail and DPD, and major sales channels.
4. What is the development process?
We follow a proven six-step lifecycle: discovery, planning, design, development, testing, and post-launch support. This ensures stability, compliance, and scalability.
5. How long does it take to build custom software?
Timelines vary based on complexity. Smaller modules may take weeks, while full systems may take several months. We provide a clear roadmap after the discovery phase.
6. Is custom software more expensive than off-the-shelf tools?
The upfront investment can be higher, but you own the system outright — no licence fees, no lock-ins. Over time, it’s often more cost-effective than paying for multiple subscriptions.
7. Do you provide ongoing support?
Yes. We provide dedicated engineering support after launch, including troubleshooting, performance optimisation, and scaling as your business grows.
8. How secure is the software?
Security is built in from day one. We follow GDPR standards, apply secure coding practices, and run code reviews and threat modelling to protect your data.
9. Can the software scale as my business grows?
Absolutely. Systems are designed with scalability in mind, so they evolve as your business and transaction volumes increase.
10. Why choose eSellerHub?
We combine over a decade of retail and 3PL experience with the engineering depth of TOPS Infosolutions. The result is reliable, scalable software built for the realities of UK and EU commerce.
Let's talk Ask Us Anything
Our Offices
34173 Gannon Terrace, 
