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English
$
USD
I will develop fast and responsive front end using react, nextjs, vuejs, gsap or 3js
Kai k.
Level 1
5.0
5.0
About this gig
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.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Kai k.
Kai k.
Senior Software Engineer
Level 1
- FromUnited Kingdom
- Member sinceSep 2025
- Avg. response time1 hour
- Last delivery1 month
Languages
English, German, French, Spanish, Arabic
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
My 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.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R 
ryanwalker007
Repeat Client
United States
Very 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
Up to $50
Price
10 days
Duration
Helpful?T tommy_johnn2
Repeat Client
United Kingdom
Mikael 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
Price
5 days
Duration
Helpful?A alex_morganz
Repeat Client
United States
Quick, efficient, and very reliable. Good experience overall.
Up to $50
Price
5 days
Duration
Helpful?X xionigub
United States
Resolved the build error quickly. Would work together again.
Up to $50
Price
2 days
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R ryanwalker007
Repeat Client
United States
Very 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
Up to $50
Price
10 days
Duration
Helpful?T tommy_johnn2
Repeat Client
United Kingdom
Mikael 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
Price
5 days
Duration
Helpful?A alex_morganz
Repeat Client
United States
Quick, efficient, and very reliable. Good experience overall.
Up to $50
Price
5 days
Duration
Helpful?X xionigub
United States
Resolved the build error quickly. Would work together again.
Up to $50
Price
2 days
Duration
Helpful?
