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$
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I will develop fast and responsive front end using react, nextjs, vuejs, gsap or 3js
Kai k.
Level 1
5,0
5,0
Über diesen Service
9+ Years | Top 1% Fiverr | 210+ Websites Enterprise & YC Clients | 100% Satisfaction | Certified Expert
Most products dont fail because of features they fail because the frontend can't keep up.
I build frontends that stay fast, stable, and easy to extend even after months or years of growth.
No rewrites. No performance drop. No UI chaos.
I'm Kai, a frontend developer with 9+ years of shipping real SaaS products dashboards, admin systems, and user-facing apps used in production by real users.
Why this works
- Built for scale, not demos
- Clean UI systems that teams can grow on
- Mobile-first by default, tested everywhere
- Performance & SEO baked in from day one
- Clear communication, zero guesswork
Tech I build with
- Next.js (App Router), React, Vue
- TypeScript, Tailwind, Shadcn UI
- Three.js for interactive & 3D UI
- API & auth flows on the frontend
Message me before ordering.
Ill tell you what to build, what to avoid, and how to keep your frontend future-proof.
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Lerne Kai k. kennen
Kai k.
Senior Software Engineer
Level 1
- AusGroßbritannien
- Mitglied seitSept. 2025
- ⌀ Antwortzeit6 Stunden
- Letzte Lieferung7 Monate
Sprachen
Deutsch, Englisch, Französisch, Spanisch, Arabisch
Senior Full Stack Developer | React | Node.Js | Supabase | AI SAAS | AI agents | AI Chatbots
Hi! I’m a Sr. Full Stack Developer with 9+ years of experience delivering scalable, MVPs and enterprise-level web applications for clients globally.
What I Offer
✅ Custom Web Applications (React, Next.js, Node.js)
✅ Enterprise SaaS Development (multi-tenant, scalable systems)
✅ API Development & Integrations (REST, Webhooks, CRMs)
✅ Admin Dashboards & CMS Solutions
✅ Industry Solutions: Real Estate, Education, Retail & eCommerce, Logistics, Energy, Aviation, Healthcare
Let's Start - Order Now
Mein Portfolio
FAQ
Which technologies do you use?
I work with Next.js (App Router), React, Vue, TypeScript, Tailwind CSS, Shadcn UI, and Three.js for interactive or 3D UI.
What type of projects do you work on?
I work on production-grade frontend projects SaaS platforms, dashboards, admin panels, and user-facing web apps. I don’t do quick demo sites or outdated frontend stacks.
Do you only handle frontend or full stack?
My focus is frontend development. I build the UI, frontend architecture, API integrations, and authentication flows. If needed, I can work with your backend team or APIs.
Can you work with existing codebases?
Yes. I often improve, refactor, or scale existing frontends, fixing performance issues, UI inconsistencies, and architectural problems without breaking what already works.
Will my frontend be mobile-friendly?
Absolutely. Every project is mobile-first, fully responsive, and tested across devices and screen sizes.
Do you care about performance and SEO?
Yes. Performance, UX, and SEO are built in from day one, not added later as fixes.
Do you provide design as well?
I can implement your design precisely or create clean, modern UI layouts when no design is provided.
Why should I message you before ordering?
Every product is different. Messaging first lets me review your idea, suggest the right frontend approach, and prevent mistakes that cost time and money later.
Bewertungen
4 Bewertungen für diesen Service
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Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
A alex_morganz
Vereinigte Staaten
Laufende ZusammenarbeitQuick, efficient, and very reliable. Good experience overall.
50 $
Preis
5 Tagen
Dauer
Hilfreich?R 
ryanwalker007
Vereinigte Staaten
Laufende ZusammenarbeitVery reliable and easy to work with. Understood the requirements clearly and delivered on time. The solution was clean and worked as expected. I would say it's a 10/10 service
50 $
Preis
10 Tagen
Dauer
Hilfreich?T tommy_johnn2
Großbritannien
Laufende ZusammenarbeitMikael handled the project efficiently and communicated clearly. Everything was delivered on time and worked as expected. He is BEST one I ever meet on Fiverr
50 $-100 $
Preis
5 Tagen
Dauer
Hilfreich?X xionigub
Vereinigte Staaten
Resolved the build error quickly. Would work together again.
50 $
Preis
2 Tagen
Dauer
Hilfreich?
Bewertungen
4 Bewertungen für diesen Service
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
A alex_morganz
Vereinigte Staaten
Laufende ZusammenarbeitQuick, efficient, and very reliable. Good experience overall.
50 $
Preis
5 Tagen
Dauer
Hilfreich?R ryanwalker007
Vereinigte Staaten
Laufende ZusammenarbeitVery reliable and easy to work with. Understood the requirements clearly and delivered on time. The solution was clean and worked as expected. I would say it's a 10/10 service
50 $
Preis
10 Tagen
Dauer
Hilfreich?T tommy_johnn2
Großbritannien
Laufende ZusammenarbeitMikael handled the project efficiently and communicated clearly. Everything was delivered on time and worked as expected. He is BEST one I ever meet on Fiverr
50 $-100 $
Preis
5 Tagen
Dauer
Hilfreich?X xionigub
Vereinigte Staaten
Resolved the build error quickly. Would work together again.
50 $
Preis
2 Tagen
Dauer
Hilfreich?
