eCommerce · London

eCommerce Software Development Company in London, built to ship.

A slow checkout is a lost sale. For online retailers, D2C brands, and marketplace operators, we design and build custom storefronts that load fast and convert, then connect them to the multi-vendor logic, inventory, payment, and fulfillment systems that quietly run the business behind the buy button. London (GMT, or BST in summer) sits 5.5 hours behind India (IST), which is the most convenient overlap of any major Western market because your morning is our afternoon and the two working days share a large chunk of live, productive hours.

4.9 Top Rated Plus on UpworkYou own 100% of the code and IP. NDA on request.

London market

London is Europe's leading technology hub and ranked third globally in Startup Genome's 2025 ecosystem report, with UK tech raising 12 billion USD in the first nine months of 2025. Its fintech sector is the strongest in Europe and second only to the United States, which keeps demand high for custom software, payment platforms, dashboards and mobile apps. Geminate Solutions acts as the remote product and engineering arm for London founders and businesses that need to move quickly without overstretching local hiring budgets.

Local signal: The UK tech ecosystem recorded 12 billion USD in funding in the first nine months of 2025, with London's fintech sector confirmed as the number one fintech hub in Europe and second globally.

Fintech and paymentsEnterprise software and SaaSMedia and entertainmentHealthtech and life sciencesE-commerce and retail

4.9★

Top Rated Plus on Upwork

250K+

daily active users on apps we built

10M+

requests per minute handled

50+

products shipped worldwide

What we build

eCommerce Software Development for London teams, end to end

Headless commerce storefronts with server-rendered product pages and one-click checkout

Multi-vendor marketplaces with vendor onboarding, commission rules, and order splitting

Real-time inventory and order management synced across multiple warehouses

PCI DSS-compliant payment integrations with Stripe, PayPal, and regional gateways

Product search and recommendation engines built on Elasticsearch

Shipping, tax, and ERP connectors that keep storefront and back office in step

Your time zone

London (GMT, or BST in summer) sits 5.5 hours behind India (IST), which is the most convenient overlap of any major Western market because your morning is our afternoon and the two working days share a large chunk of live, productive hours.

Your IP, your code

You retain full IP ownership, we sign an NDA up front, and our English-fluent team is set up to work to UK contract and GDPR expectations so London clients can offshore with confidence.

Priced in GBP

Transparent, milestone-based, scoped on a free call. No hidden costs and no lock-in.

FAQ

eCommerce Software Development in London, answered

Can you build a custom eCommerce platform instead of using a template?

Custom is where we are strongest. We build headless commerce platforms with Next.js and Node.js, which gives you control over the storefront, checkout, and data that template tools cannot match. We also integrate with Shopify and other systems when a custom layer on top makes more sense for your roadmap.

How do you keep a store fast during sales events and traffic spikes?

Peak load is a design constraint, not a surprise. We architect for it with CDN caching, server-side rendering, database read replicas, and auto-scaling infrastructure. Our team load-tests against your expected concurrency before launch so flash sales and seasonal peaks do not degrade checkout.

Do you have PCI compliance experience for payment processing?

Tokenization and 3D Secure carry the load here. We ship PCI DSS-compliant checkout with fraud detection, and card data is handled through certified gateways such as Stripe and PayPal so sensitive details never touch your own servers.

How much of the working day do London and India actually share?

London is 5.5 hours behind our India team, which gives one of the best overlaps we work with. Your full morning is our afternoon, so live calls, code reviews and approvals happen in real time without anyone working unsociable hours.

Is offshore development with Geminate Solutions more cost-effective than a London agency?

London carries some of the highest developer rates in Europe, so an offshore product partner usually reduces your build cost substantially while keeping delivery quality high. We scope the exact cost on a call once we understand your product, rather than listing a headline rate.

How much does eCommerce Software Development cost in London?

Every ecommerce project is scoped on a free call rather than sold as a fixed package, and most engagements start with a paid pilot sprint so you see the work before you commit. You get a clear number in GBP before anything starts.

Do we own the code?

Yes, completely. The code, the project, and the content are handed to you. You hold the keys, not us. We sign an NDA before you share anything.

How long does it take?

Most builds go live in two to four weeks. Larger products with a custom backend or migration take longer, and you get a firm timeline before any work begins.

Start in London

Get a free project estimate

Tell us what you want to build. A senior engineer sends a clear scope and estimate within 24 hours. No pitch, no obligation.

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