You will get a custom full-stack web application with Next.js
Project details
I build production-ready web applications using Next.js, TypeScript, PostgreSQL, and modern backend technologies. Whether you need an AI-powered SaaS platform, booking system, ecommerce application, or custom business solution, I focus on reliability, scalability, and great user experience.
My experience includes payment integrations (Stripe, Midtrans), AI assistants using OpenAI, real-time features, authentication, and secure backend architecture.
What I can build:
✅ AI SaaS Development
✅ Full Stack Development
✅ Next.js & TypeScript
✅ Payment Integration
✅ Real-Time Applications
✅ API Integration
✅ Authentication & Security
✅ Scalable Architecture
I believe in clear communication, maintainable code, and building systems that solve real business problems.
My experience includes payment integrations (Stripe, Midtrans), AI assistants using OpenAI, real-time features, authentication, and secure backend architecture.
What I can build:
✅ AI SaaS Development
✅ Full Stack Development
✅ Next.js & TypeScript
✅ Payment Integration
✅ Real-Time Applications
✅ API Integration
✅ Authentication & Security
✅ Scalable Architecture
I believe in clear communication, maintainable code, and building systems that solve real business problems.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$199
|
Advanced
$399
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 30 days |
Number of Revisions | 1 | 2 | 6 |
Number of Pages | 3 | 6 | 10 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $250
Additional Revision
+$15
Additional Page
(+ 1 Day)
+$25Frequently asked questions
About Kevin
Full Stack Developer | Next.js, TypeScript, PostgreSQL
Samarinda, Indonesia - 3:28 pm local time
My experience includes booking platforms, ecommerce systems, and multi-tenant SaaS applications. I've implemented payment integrations (Stripe, Midtrans), webhook validation, idempotency protection, authentication flows, AI assistants, role-based access control, and real-time functionality used in complete end-to-end products.
What I can help you with:
• Build full-stack web applications
• Develop booking and scheduling systems
• Integrate Stripe, Midtrans, and third-party APIs
• Build AI-powered features and assistants
• Improve backend reliability, performance, and security
• Debug and extend existing applications
Tech stack:
Next.js, TypeScript, PostgreSQL via Supabase, Redis, OpenAI API
I focus on building systems that work reliably in real-world conditions—not just demos. If you need a developer who can work across frontend, backend, payments, and AI integrations, I'd be happy to help.
Steps for completing your project
After purchasing the project, send requirements so Kevin can start the project.
Delivery time starts when Kevin receives requirements from you.
Kevin works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review & Planning
I will review your business goals, project requirements, and technical needs to define the scope, features, and implementation plan.
System Design & Architecture
I will design the application structure, database schema, user flow, and technical architecture to ensure scalability and maintainability.