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I will be your react developer and next js developer for saas web app
Ahsan
Level 2
About this gig
Production web apps and SaaS products built with React, Next.js, FastAPI, and modern tech.
From MVPs to scalable SaaS with auth, billing, and admin panels. AI features available.
I'm a full stack developer building production apps for startups and businesses. SaaS, dashboards, internal tools, MVPs, ecommerce, anything modern web. AI on request.
WHAT I BUILD
- SaaS web apps with auth, billing, admin panel
- Full stack apps with React, Next.js, FastAPI, Node.js
- Dashboards and analytics tools
- MVPs for startup validation
- Internal company tools and admin panels
- REST APIs and backend services
- Ecommerce platforms with Stripe
- AI features: ChatGPT, RAG, agent integrations (optional)
TECH STACK
Frontend: React, Next.js, Vite, TypeScript, Tailwind
Backend: FastAPI, Node.js, Express, REST APIs
Database: PostgreSQL, MongoDB, Supabase
Deploy: Vercel, AWS, GCP, Docker, plus Stripe and Auth0
AI (optional): OpenAI, Claude, LangChain, RAG, Open Source LLMs and more
WHY ME
5+ years shipping production web apps. Modern stacks only, no WordPress themes. Full source code and deployment included.
Click "Contact me" first. I review your project free in 1 hour and quote a custom package.
Get to know Ahsan
Ahsan
Bringing imagination to life through the power of AI
Level 2
- FromPakistan
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery3 days
Languages
English, Urdu
Greetings! I'm a versatile developer specializing in full-stack development and AI technologies. With a solid foundation in backend API development using FastAPI and frontend proficiency with Flask, HTML, CSS, and JavaScript, I'm equipped to bring your project to life. Moreover, my expertise extends to AI domains such as Natural Language Processing (NLP) and Large Language Models (LLMs). Since embarking on this journey in 2019, I've refined my skills to deliver seamless, innovative, and high-quality solutions. Let's team up to turn your ideas into reality!
My Portfolio
Other Software Development Services I Offer
FAQ
What kind of web apps can you build?
Custom SaaS products, dashboards, internal tools, MVPs, ecommerce platforms, admin panels, and AI powered web apps. From a simple landing page with a backend to a full production SaaS with auth, billing, and multi user support.
Do you build full SaaS products with subscriptions, billing, and multi user support?
Yes. Premium package includes auth (Auth0, Clerk, or custom), Stripe billing, multi user support, admin panel, and role based access. Production grade architecture, not demo code.
Can you integrate ChatGPT, Claude, or OpenAI API into my existing app?
Yes. I integrate OpenAI APIs (GPT-4o, GPT-4.1, Assistants API, Embeddings), Anthropic Claude, and Google Gemini into existing React, Next.js, or any modern stack. Rate limiting, error handling, and cost monitoring included.
Can you build a RAG chatbot over my private documents?
Yes. Full RAG pipeline with vector DBs (Pinecone, Chroma, Weaviate, Qdrant) that lets your app answer questions from PDFs, websites, Notion, MongoDB, or any data source. Source citations and confidence scoring included.
What's the right tech stack for a SaaS MVP?
For most MVPs I recommend Next.js + FastAPI + PostgreSQL + Supabase + Vercel for deployment. Add OpenAI API if you need AI features. Fastest to production, easy to scale later. If you have constraints (cost, privacy, specific stack), I adapt.
Will I get full source code and ownership?
Yes. Every package includes full source code with commercial use rights. You own everything. No platform lock in, no monthly licensing fees.
Do you handle hosting, deployment, and DNS setup?
Yes. I deploy to Vercel, AWS, GCP, or your preferred host. Domain configuration, SSL, environment variables, database hosting, and CI/CD pipeline all included.
How long does a project take?
Simple web app or single page tool: 3 to 5 days. Custom app with auth and database: 1 to 2 weeks. Full SaaS with billing and admin panel: 3 to 4 weeks. I confirm timeline after reviewing your requirements.
Can you build a chatbot, voice agent, or AI agent as part of the app?
Yes. Chatbots, AI agents, voice agents (Vapi), and multi channel bots (WhatsApp, Slack, Telegram) are all things I build as components of larger web apps or as standalone projects.
How do we get started, should I order or message you first?
Please click "Contact me" before ordering. I review your idea, recommend the right architecture and tier, and quote a custom price in about 1 hour. Avoids ordering the wrong tier or scope mismatch.
