I will build high performance website with nextjs


About this gig
Looking for a generic, slow website? You are in the wrong place.
If you want a blazing-fast, high-performance custom web application designed for maximum conversion and zero technical debtlet's build it the right way!
As a Computer Engineer & Full-Stack Developer, I specialize in converting complex business logic, custom interactive tools, and Figma designs into production-ready Next.js apps. Clean, modular TypeScript architecture built to scale.
What I Build:
- Landing Pages: Pixel-perfect, ultra-fast, and fully responsive layouts.
- AI-Powered Apps: OpenAI/Claude API, HuggingFace integrations & smart workflows.
- Tools & Calculators: Custom frontend logic, state-management & dynamic UI.
- SaaS MVPs: Secure user auth, relational databases & dynamic dashboards.
️The Tech Stack:
Frontend: React, Next.js (App Router), TypeScript, JS
Styling: Tailwind CSS, Bootstrap, Shadcn UI
Backend: Supabase, PostgreSQL, MongoDB, REST & Third-Party APIs
Cloud & Hosting: Vercel, Netlify, DigitalOcean
PLEASE CONTACT ME BEFORE ORDERING to discuss your project details!
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 Batuhan O
Full Stack Engineer
- FromTurkey
- Member sinceSep 2022
- Avg. response time1 hour
Languages
Turkish, English
My Portfolio
FAQ
What is the difference between Next.js and traditional WordPress/HTML websites?
Next.js is a modern React framework. Unlike template-heavy WordPress sites, it compiles into highly optimized pages. This guarantees sub-second loading, top security, better Core Web Vitals, and significantly higher Google SEO rankings out of the box.
Which models do you use for AI/LLM integrations?
I integrate leading LLMs like OpenAI (GPT-4), Anthropic (Claude), and Hugging Face. Whether you need a smart chatbot, custom prompt engineering, or dynamic content generation, I will build secure backend API routes to handle these AI workflows seamlessly.
What do you use for the database and user authentication (Auth)?
For full-stack apps, I use Supabase powered by PostgreSQL. It offers enterprise-grade database management, secure user authentication (Email, Google, Magic Links), and real-time data sync. It is incredibly fast, secure, and ready to scale with your business.
Do I need to provide the UI/UX design or wireframes?
If you have a Figma file, Adobe XD link, or reference site, that's perfect! If not, don't worry. I can build a clean, modern, and highly responsive user interface from scratch using Tailwind CSS, Bootstrap, or Shadcn UI tailored specifically to your brand goals.
How do we deploy and launch the website after delivery?
I handle the entire deployment. I'll deploy your Next.js app to Vercel or Netlify (free for most startup traffic levels). I will also assist you in mapping your custom domain and configuring DNS settings so your website is securely live with an SSL certificate.

