I will build modern ai saas web application using nextjs fastapi


About this gig
Need a high-performance web application? Lets build your AI SaaS platform with a rock-solid tech stack.
Building a scalable software business requires deliberate engineering. Cheap, generic templates cause crashing servers and broken databases under real user traffic. As an active builder launching products openly, I deliver clean, production-ready full-stack software tailored for fast-moving founders.
I build optimized frontends using Next.js/React and integrate blazing-fast async backends using Python FastAPI for complex AI logic layers.
What This Gig Covers (Scales via Tiers):
- Building responsive frontends using Next.js and Tailwind CSS.
- Engineering high-performance async backends with Python FastAPI.
- Connecting secure databases (Supabase or PostgreSQL) and RLS rules.
- Integrating advanced AI models (OpenAI, Claude, DeepSeek APIs) and Stripe webhooks.
️CRITICAL REQUIREMENT READ BEFORE ORDERING:
Full application builds require a complete technical roadmap. You must message me with your product requirements and wireframes BEFORE clicking 'Order' to protect our delivery parameters.
Get to know Isaac
Active SaaS Builder and Full Stack AI Engineer
- FromBangladesh
- Member sinceApr 2022
- Avg. response time7 hours
- Last delivery7 months
Languages
English
My Portfolio
Other AI Development Services I Offer
FAQ
Why do you separate Next.js and Python FastAPI?
Next.js is the absolute world standard for building beautiful, lightning-fast user interfaces and handling secure client-side user sessions. Python FastAPI is the highest-performance backend engine for running Python-based AI models, heavy computational scripts, and async web data layers seamlessly.
Does the Basic or Standard package include the Python FastAPI backend?
No. The Basic tier focuses strictly on Next.js frontend UI styling. The Standard tier delivers a full-stack web application using the Next.js App Router for both frontend and backend logic. The Python FastAPI backend engine is reserved exclusively for the high-performance Premium tier.
How do you deliver the source code and protect my API keys?
Upon completion, I push the clean, production-ready codebase directly to your private GitHub repository. For safety, I never hardcode your private secret keys (OpenAI, Stripe, Supabase). Instead, I map them securely into encrypted environment variables (.env) on your hosting platform.
