I will integrate ai into your existing web or mobile app


Level 2
Vetted by Fiverr Pro
Julius O was selected by the Fiverr Pro team for their expertise.
About this gig
I will integrate AI into your existing web or mobile app
WHAT I CAN INTEGRATE
AI chat assistant embedded into your app or dashboard
Domain-specific Q&A (legal, finance, health, engineering)
Automated customer support with LLM responses
Voice-to-text with AI reply generation
Multi-role AI flows (admin, client, student modes)
EVERY INTEGRATION INCLUDES
Custom prompt engineering (not a generic API call)
Context-aware, on-brand AI responses
Clean integration into your existing codebase
Full source code + basic QA before handover
RECENT WORK
Engichat (engichat.com) AI engineering assistant,
4.67/5 on Google Play. Built full AI integration layer
with domain intelligence, image analysis & 3D CAD implementation.
TECH STACK
Claude / GPT-4 · React Native · Expo · Next.js · Node.js .
MongoDB · JWT · Vercel / Render
️ Message me before ordering to confirm compatibility.
Get to know Julius O
Experienced Web and Mobile App Engineer
Level 2
Julius O is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Software Development
Website Development
- FromNigeria
- Member sinceJan 2024
- Avg. response time1 hour
- Last delivery4 days
Languages
English, French
My Portfolio
FAQ
Do you build from scratch or only integrate into existing apps?
This gig is specifically for integrating AI into your existing web or mobile app. If you need a full app built from scratch, I offer a separate gig for that. Message me and I'll point you in the right direction.
Which AI models do you work with?
I primarily work with Claude (Anthropic) and GPT-4. Both are production-grade LLMs suitable for business applications. I'll recommend the best one based on your use case, budget, and performance requirements during our initial discussion.
What tech stacks are you compatible with?
I work with React Native, React, Next.js, and Node.js/Express backends with MongoDB or PostgreSQL. If your app uses a different stack, message me before ordering and I'll confirm compatibility.
Will I own the source code after delivery?
Yes, 100%. You receive the full source code for everything I build. There are no licensing fees, no ongoing dependencies on me, and no black-box deliverables.
Do I need to have my own API key for Claude or GPT-4?
Yes, you'll need your own API key from Anthropic or OpenAI. This keeps your AI usage costs under your control. If you don't have one yet, I'll guide you through getting set up — it takes less than 10 minutes.
How do you handle sensitive or confidential business data?
I work under strict confidentiality. I only access what is necessary to complete the integration, and I'm happy to sign an NDA before work begins if required. Your data and codebase remain private throughout.
What happens if something breaks after delivery?
Each package includes a post-delivery support window — 30 days for Basic, 2 months for Standard, and 3 months for Premium. Any bugs or issues arising directly from my integration will be fixed at no extra charge within that window.
Why is your pricing higher than other sellers on Fiverr?
AI integration isn't copy-paste. I engineer the prompt architecture, conversation flow, and codebase fit for your specific app — delivering a production-ready, scalable integration, not a rushed prototype.
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solon85

United States
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$200-$400
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3 weeks
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1 reviews for this Gig
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| (1) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S 
solon85

United States
No comments
$200-$400
Price
3 weeks
Duration
J 
Seller's Response
Helpful?

