User Experience
and Frontend Development
The best product selection is worthless if checkout is frustrating or product pages are unreadable on mobile. Strong UX and frontend engineering is what turns visitors into buyers — and buyers into repeat customers. We combine data-driven UX design with performant frontend code built on modern technologies like Vue.js, React, and the Shopware Storefront to create shopping experiences that impress both visually and technically.
Intuitive Design
Intuition in an interface isn't accidental — it's the result of structured UX research. We analyze user behavior with heatmaps and session recordings, run usability tests with real users, and translate findings into concrete optimization hypotheses. The result is navigation and checkout flows that systematically remove purchase barriers and demonstrably increase conversion rates.
Responsive Web Design
More than half of all e-commerce transactions now happen on mobile devices — a poorly optimized mobile shop is a direct revenue loss. We develop with a mobile-first approach: layouts, touch targets, font sizes, and load times are optimized for smartphone users first, then extended consistently to tablet and desktop.
User-Centered Approaches
Design decisions without user data are opinions, not insights. We integrate continuous user feedback through surveys, interviews, and A/B tests into the development process to ensure every interface change matches the needs of your target audience rather than internal preferences. The result is products that solve real problems.
Performance Optimization
Google evaluates Core Web Vitals directly as a ranking factor — slow pages lose twice: users bounce, and organic visibility drops. We optimize Largest Contentful Paint, Cumulative Layout Shift, and Interaction to Next Paint through lazy loading, critical CSS, optimized image formats, and code splitting to improve both rankings and user satisfaction simultaneously.
Accessibility
Accessibility isn't an optional add-on — it's a legal requirement and a quality benchmark. We develop to WCAG 2.1 AA standard, test with screen readers and automated accessibility tools, and ensure your shop is fully operable for all user groups. This protects you from legal risk and opens your platform to a broader audience.
Agile Development Methods
Rather than developing in silence for months and presenting results at the end, we deliver visible output in two-week sprints. Each iteration ends with a review where you give feedback that flows directly into the next sprint. The project stays on track, and your budget goes toward features that are actually used.
Your benefits
- Data-driven UX design for measurably higher conversion rates
- Mobile-first development for optimal smartphone performance
- Core Web Vitals optimized for stronger Google rankings
- WCAG 2.1 AA accessibility compliance for all user groups
- Continuous user feedback integrated into iterative sprints
- Performant frontend code with Vue.js, React, and Shopware Storefront
Whynextlevels?
With us you're always at the cutting edge of technology and benefit directly from our developer expertise. Together we analyze your shop, identify key areas and develop tailor-made solutions. Your goals and expectations are at the center of our work.
- Technical know-how
- Deep e-commerce knowledge
- Many years of experience
- Interdisciplinary team
- Sustainable online success
Frequently asked questions
We advise you in alldigital areas
Ready for your successful online shop?
Whether you want to improve your current shop or are considering a new one. We look forward to meeting you – a no-obligation conversation never hurt anyone.
