I will build ai agents, web app or ai saas as a full stack react software developer


About this gig
Hi, I'm Haris a full stack developer and product manager with 8+ years of experience building AI SaaS and web applications.
Most "AI integrations" you see online are surface-level wrappers around ChatGPT. I build production-ready AI SaaS products that actually scale, with clean architecture, proper auth, prompt engineering, and real UX.
WHAT I'LL BUILD FOR YOU:
- AI chatbots, agents, and assistants powered by OpenAI or Claude
- RAG systems with vector databases (Pinecone, Supabase)
- Full SaaS platforms with auth, payments, and dashboards
- AI tools that solve real business problems, not just demos
TECH STACK:
Next.js, Node.js, React, TypeScript, OpenAI API, Claude API, LangChain, PostgreSQL, AWS, Vercel, Stripe.
WHY WORK WITH ME:
- 8+ years building real products, not just prototypes
- Product management background I understand what makes a SaaS actually convert
- Clean, scalable, documented code
- Honest timelines and clear communication
BEFORE YOU ORDER: Message me with your project details so I can scope properly and send a custom offer if needed. Most real AI SaaS builds need a tailored quote.
Let's build something great.
Get to know Haris K
Full Stack Web and Mobile App developer AI SaaS Expert
- FromPakistan
- Member sinceJan 2018
- Avg. response time1 hour
- Last delivery1 day
Languages
English
My Portfolio
FAQ
How do I get started with your services?
To begin, simply click on 'Contact Me' or 'Request to Order' and share your project details. We'll take it from there!
Do you work with OpenAI, Claude, or other AI models?
Yes. I work with OpenAI (GPT-4, GPT-4o, GPT-3.5), Anthropic Claude (Sonnet, Opus, Haiku), and open-source models via Hugging Face when needed. I'll recommend the best model for your use case, budget, and performance requirements before we start.
Can you integrate AI into my existing app or website?
Absolutely. I can add AI features to existing apps built with Next.js, React, Node.js, Python, or most modern stacks. Just share your current setup and what you want to add. The Basic package is specifically designed for this kind of integration.
Do you handle the full SaaS build including authentication, payments, and dashboard?
Yes. The Standard and Premium packages cover end-to-end SaaS development including secure authentication (email, OAuth, JWT), Stripe payments and subscriptions, user dashboards, and admin features. Everything you need to launch a real product.
Will I own the source code and have full rights to it?
Yes, you own 100% of the code I deliver. I'll hand over the complete repository, deployment instructions, and documentation. You're free to modify, host, and scale it however you want.
What if I need changes or fixes after delivery?
Every package includes revisions as listed. After the revision period, I offer affordable monthly maintenance packages for ongoing updates, bug fixes, and new feature additions. We can discuss this once your build is complete.
What information should I provide when placing an order?
Please provide detailed project requirements, including your objectives, features, and any specific design or functionality preferences. Clear communication at the outset helps prevent misunderstandings later on.
What if I don't know the requirements for my project?
If you're unsure about your project's requirements, we can initiate a discovery phase. During this phase, we'll work closely with you to identify your needs, goals, and specifications. Once the project requirements are defined, we can proceed with a clear project plan and scope.
How do you handle data privacy and security for AI features?
I follow best practices including encrypted API keys, secure prompt handling, data minimization, and proper auth controls. For healthcare or sensitive industries, I can build with HIPAA-aware architecture and recommend compliant infrastructure (e.g., AWS with signed BAA).
2 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
C chad_felix3

United States
Excellent developer who understood my requirements, communicated clearly, delivered quality work on time, fixed issues patiently, and made the entire process smooth, professional, and reliable.
$100-$200
Price
8 days
Duration
Helpful?C carolynmaya

United States
Haris is very professional and reliable!
$100-$200
Price
7 days
Duration
Helpful?
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
C chad_felix3

United States
Excellent developer who understood my requirements, communicated clearly, delivered quality work on time, fixed issues patiently, and made the entire process smooth, professional, and reliable.
$100-$200
Price
8 days
Duration
Helpful?C carolynmaya

United States
Haris is very professional and reliable!
$100-$200
Price
7 days
Duration
Helpful?

