React interfaces that stay maintainable after launch
We build React component systems your team can extend without rewriting the tree every quarter. Accessibility, performance, and GDPR sit in the same scope.
- Component systems with clear ownership
- Accessibility and keyboard paths in the build
- Core Web Vitals budgets on the screens that matter
UI engineering, not one-off screens
React work fails when every feature invents its own patterns. We agree on components, state boundaries, and test hooks before the first screen ships.
You get an engineer through launch. If Next.js hosting and routing are the real need, we say so early and route you there instead of forcing a SPA.
We prefer boring, documented component APIs your team can extend. New libraries need a reason tied to a user or ops outcome.
What we check before a React delivery
- App boundariesWe separate marketing surfaces from product UI so release cadence does not block content updates.
- Design system reuseExisting components, tokens, and accessibility patterns are inventoried before new ones appear.
- State and data fetchingClient vs server data ownership is written so duplicate fetches and stale caches do not ship by accident.
- Test and release gatesWhat must pass before merge is listed: lint, typecheck, critical user paths.
Selected work with commercial stakes
Discovery and launch on a production stack
User interviews ran in parallel with the build so the site matched what buyers asked for.
Four-market stack under one TechOps lead
Fractional CTO across vegconomist markets plus Cultivated-X: updates, adops, performance, and incident response.
Relaunch study before vendor lock-in
Requirements, localisation, and vendor-scope advice for a multi-market manufacturer relaunch.
From brief to a UI your team can own
Screens and outcomes
We lock which flows and metrics count before component work starts.
Component and state map
Shared UI, data boundaries, and accessibility rules written down.
Interface engineering
Build against performance and a11y budgets. No decorative libraries without an owner.
Integrations and GDPR
API hooks, analytics, and consent behaviour with a written data map.
Launch and handover
Staging QA, story or docs for key components, and a short runbook.
React work we take on
Component systems
Reusable UI with documented props and ownership so new screens reuse existing patterns.
Product UI builds
Dashboards, booking flows, and account areas tied to a user outcome you already measure.
Core Web Vitals fixes
Find heavy client bundles and layout shifts, then cut what fails LCP, INP, or CLS.
Modernisations of legacy UI
Replace brittle frontends in slices with redirects and a cutover plan where needed.
When React is the right call
- You need interactive UI with a component system your engineers can extend
- Accessibility and performance matter on the same delivery
- You want GDPR-aware analytics and third-party scripts in scope
- You only need a static brochure site with no interaction owner
- You want unlimited hourly UI tinkering without a written scope
- You need framework hosting decisions that belong on a Next.js engagement
React questions
Do you build design systems or only one-off pages?
We prefer a small, documented component set tied to real screens. Pure design-system theatre without a product owner is usually a poor fit.
React or Next.js?
Choose React when the component system is the job. Choose Next.js when routing, SSR, and hosting rules matter. See our Next.js agency page and frontend engineering.
How do you handle accessibility?
Keyboard paths, focus, and labels are part of the build checklist. We fix the blockers on the flows in scope before launch in the same delivery cycle.
How do you handle GDPR in React apps?
Consent, processors, and cookie behaviour are part of the build scope. Marketing tags stay behind consent where required, with vendors listed in the data map.
Where are you based?
Registered in Wiesbaden. Discovery and reviews can happen in person in the Rhein-Main region; delivery runs in structured cycles.
What do you finish in week one on a React rebuild?
Component ownership map, design-system boundaries, accessibility baseline, and which routes ship first.
Will you adopt the newest React library by default?
No. New libraries need a user or ops outcome. Boring, documented APIs win when your team maintains the app.
Nearby stacks and services
Technologies: WordPress, Shopify, WooCommerce, Webflow, TYPO3, Drupal, Pimcore, Next.js, Frontend engineering, Laravel, PHP, Angular. All technologies →
Services: Websites & WordPress, WordPress agency, SEO for B2B, AEO & GEO for AI search, Website relaunch, Technical compliance, AI & automations.
Office in Wiesbaden
Hans-Böckler-Str. 76
65199 Wiesbaden
Ready to talk.Book a short diagnostic.
Tell us what needs fixing
We read every brief and reply within one business day.
Prefer to talk first?or request a tech stack audit →or email us directly →
Not sure where to start? Send the stuck decision, workflow, or page. We will say whether you need a diagnostic call, a tech stack audit, or a different first step.