Sfoglia categorie
Esplora
Fiverr Pro
Italiano
$
USD
I will be your full stack developer for react, nextjs, nodejs and nestjs
Kai k.
Level 1
1 ordine in coda
5,0
5,0
Informazioni su questo servizio
9+ Years | Top 1% Fiverr | 210+ Websites Enterprise & YC Clients | 100% Satisfaction | Certified Expert
Need someone whos actually shipped SaaS products not just learned the stack?
Most projects dont fail because of bad ideas. They fail because the system isnt designed properly from the start.
I'm Kai, a full-stack developer with 9+ years of building real SaaS products and business systems not demos, not half-finished apps. I work on dashboards, admin panels, APIs, and full SaaS platforms that need structure, clarity, and long-term stability.
Most clients come to me after something went wrong. I help fix that by keeping things simple, clean, and well-planned.
What I work on
- Custom web applications
- SaaS platforms & internal tools
- Backend APIs & integrations
- Authentication, roles & permissions
- Database design & data structure
Tools I use
Frontend Development
- React.js, Next.js, Vue.js, TypeScript
- Tailwind CSS, Bootstrap, MUI, Ant Design
- GSAP, Three.js, WebGL
Backend Development
- Node.js, Express.js, Nest.js
- GraphQL, REST APIs, WebSockets
- JWT, OAuth
Message me before ordering.
I'll tell you whats worth building, what to avoid, and how to do it right the first time.
Rispettare i diritti di terzi
Ricorda che è contrario alle politiche di Fiverr per i freelance includere temi, modelli o qualsiasi altro elemento che violi i diritti di terzi o le leggi applicabili nell'opera consegnata. Per saperne di più, consulta Guida alla creazione digitale responsabile.
Scopri di più su Kai k.
Kai k.
Senior Software Engineer
Level 1
- DaRegno Unito
- Membro daset 2025
- Tempo di risposta medio6 ore
- Ultima consegna7 mesi
Lingue
Inglese, Tedesco, Francese, Spagnolo, Arabo
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
Il mio portfolio
FAQ
Why should I message you before ordering?
A short discussion upfront helps avoid bad decisions and ensures we build the right thing the right way from the start.
What type of projects do you work on?
I work on real production projects SaaS platforms, dashboards, admin panels, APIs, and internal business systems. Not demos, tutorials, or half-finished apps.
Do you build full SaaS products or only parts?
Both. I can build a full SaaS system from scratch or work on specific parts like backend APIs, dashboards, authentication, or database design.
Can you fix or continue an existing project?
Yes. Many clients come to me with slow, messy, or unfinished codebases. I can refactor, stabilize, and extend existing systems without breaking them.
How do you approach a new project?
I start by understanding how the system should work, how it will grow, and where problems could appear later. Then I design the structure before writing code.
Which technologies do you use?
React, Next.js, Node.js, Express, NestJS, MongoDB, PostgreSQL, MySQL, plus standard web technologies like HTML, CSS, and JavaScript.
Do you care about performance and scalability?
Yes. Performance, structure, and scalability are part of the build, not afterthoughts.
Will you communicate during the project?
Absolutely. You’ll always know what’s happening, what’s next, and why. No guessing, no disappearing.
Recensioni
9 recensioni per questo servizio
| (9) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
T tommy_johnn2
Regno Unito
Very solid developer. Took ownership and handled everything properly. 10/10 Recommended
50 USD
Prezzo
2 giorni
Tempo
Utile?T thomson_210
Stati Uniti
Delivered exactly what was needed. Easy to work with.
50 USD
Prezzo
4 giorni
Tempo
Utile?S sammy_243
Stati Uniti
Handled deployment issues smoothly, especially environment variable setup. Everything is working now. Easy to work with and very responsive.
50 USD
Prezzo
3 giorni
Tempo
Utile?L leborn_
Stati Uniti
Simple, effective, and professional.
50 USD
Prezzo
2 giorni
Tempo
Utile?B bet231
Stati Uniti
Quick turnaround and solid front-end fix.
50 USD
Prezzo
3 giorni
Tempo
Utile?
Recensioni
9 recensioni per questo servizio
| (9) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
T tommy_johnn2
Regno Unito
Very solid developer. Took ownership and handled everything properly. 10/10 Recommended
50 USD
Prezzo
2 giorni
Tempo
Utile?T thomson_210
Stati Uniti
Delivered exactly what was needed. Easy to work with.
50 USD
Prezzo
4 giorni
Tempo
Utile?S sammy_243
Stati Uniti
Handled deployment issues smoothly, especially environment variable setup. Everything is working now. Easy to work with and very responsive.
50 USD
Prezzo
3 giorni
Tempo
Utile?L leborn_
Stati Uniti
Simple, effective, and professional.
50 USD
Prezzo
2 giorni
Tempo
Utile?B bet231
Stati Uniti
Quick turnaround and solid front-end fix.
50 USD
Prezzo
3 giorni
Tempo
Utile?
