UI & UX Design
Design ecommerce experiences that convert, scale and perform.
In ecommerce, design is not about how a website looks — it’s about how easily customers can buy.
Poor UX creates friction, confusion and abandoned carts. Strong UI & UX design removes barriers, guides decision-making and turns traffic into revenue.
At StreamMarket, we design conversion-focused UI & UX for ecommerce businesses of all sizes — from B2C retail stores to complex B2B and hybrid platforms. Our designs are informed by real user behaviour, operational realities and commercial goals, ensuring every interaction serves a purpose.
This is design with intent — not decoration.
What UI & UX Design Means for Ecommerce
UI (User Interface) focuses on visual elements — layout, typography, buttons, colour and hierarchy.
UX (User Experience) focuses on behaviour — how users navigate, find products, compare options and complete purchases.
In ecommerce, the two are inseparable.
Great ecommerce UI & UX:
- Makes complex catalogues easy to navigate
- Helps users find the right product faster
- Reduces friction at checkout
- Builds trust and confidence
- Supports repeat purchases
This is especially critical in B2B & B2C Website Development, where different user types expect very different journeys.
Why UI & UX Directly Impacts Revenue
Design decisions have a direct commercial impact.
Well-designed ecommerce UX leads to:
- Higher conversion rates
- Improved average order value (AOV)
- Lower bounce rates
- Faster buying decisions
- Reduced customer support queries
- Stronger brand perception
UI & UX is not a cosmetic layer — it’s a growth lever.
B2C Ecommerce UX Design
B2C customers shop quickly and emotionally. Your design must guide them effortlessly from discovery to checkout.
We design B2C experiences focused on:
- Clear navigation and category structure
- Fast product discovery and filtering
- High-impact product pages
- Mobile-first layouts
- Frictionless checkout flows
- Trust signals and social proof
Every element is designed to support speed, clarity and confidence.
B2B Ecommerce UX Design
B2B UX is fundamentally different — and often poorly executed.
B2B buyers are logical, repeat-focused and task-driven. They expect efficiency, not inspiration.
We design B2B UX that supports:
- Account-based navigation
- Role-based access and permissions
- Customer-specific pricing visibility
- Bulk ordering and quick reordering
- Saved lists and requisition workflows
- Approval and purchase-order journeys
Strong B2B UX is a core part of effective End-to-End Ecommerce Systems, ensuring operational efficiency alongside customer satisfaction.
UX Design for Scale & Complexity
As ecommerce businesses grow, UX complexity increases.
We design UX for:
- Large and complex catalogues
- Logged-in vs logged-out user journeys
- Multiple customer types
- Regional or language-specific experiences
- Multi-brand or multi-store environments
This is particularly important for Multi-Store Ecommerce, where each storefront must feel tailored while remaining consistent.
UX in Rebuilds & Platform Migrations
UX design should never be an afterthought in rebuilds or migrations.
When redesigning or replatforming, UX must be addressed before development begins.
We frequently deliver UX as part of:
- 🔗 Platform Migrations
- Website rebuilds
- System modernisation projects
Clear UX planning reduces rework, improves development efficiency and ensures the new platform actually performs better than the old one.
This process often starts with Analysis & Roadmapping to align design decisions with business objectives.
Data-Led UX, Testing & Optimisation
Good UX is not based on opinion — it’s based on data.
Our UX decisions are informed by:
- Analytics and user behaviour
- Conversion funnel analysis
- Heatmaps and interaction data
- Performance insights
- A/B testing and CRO learnings
UX improvements often go hand-in-hand with Performance & Speed Optimisation and Advanced Reporting, ensuring design changes are measurable and impactful.
Our UI & UX Design Process
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1. Research & Discovery
Understanding your users, goals, challenges and constraints.
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2. User Journeys & Information Architecture
Mapping how users move through your site and find what they need.
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3. Wireframes
Low-fidelity layouts focused on structure, flow and usability.
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4. Interactive Prototypes
Clickable prototypes to validate journeys before development.
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5. UI Design
High-fidelity designs aligned with your brand and platform.
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6. Design Handoff & Collaboration
Developer-ready designs, components and documentation.
UX is treated as a foundation — not a layer added at the end.
What You Get from UI & UX Design
Our deliverables are practical and implementation-ready:
- User journey maps
- Information architecture
- Wireframes
- Interactive prototypes
- UI design files
- Design systems and component libraries
- UX documentation for development
Everything is built to support smooth delivery and future scalability.
Why Choose StreamMarket
for UI & UX Design
- Ecommerce-focused UX expertise
- Strong understanding of B2B, B2C and hybrid journeys
- Design aligned with real operational workflows
- Platform-aware UX (Magento, Shopify, WooCommerce)
- Designs built for developers, not just presentations
- Long-term optimisation mindset
We design experiences that work — for users and for your business.
UI & UX Design FAQs
Do you redesign existing ecommerce websites?
Do you design before development?
Is UI & UX included in ecommerce builds?
Do you test designs with real users?
Can UX improvements increase conversion rates?
Ready to Get Clarity from Your
Ecommerce Experience?
If your website looks good but doesn’t perform as it should, UI & UX design can unlock real growth.
Next steps:
- Start a UX Review
- Book a UI & UX Discovery Session
- Request a UI & UX Design Proposal
Or get in touch directly