You will get AI features integrated into your existing web app | Claude & OpenAI API
Rising Talent
Project details
Already have a web app and just want to add AI the right way? I integrate AI features directly into your existing product: smart search, content generation, or an in-app AI assistant, built to fit your codebase, not bolted on.
I work with the OpenAI and Claude APIs and ship production-ready integrations: proper error handling, retries, rate limiting, and token cost optimization so your bill stays predictable.
For MyRunStory, I added AI coaching on top of an existing fitness app analyzing each user's data and generating personalized feedback. The AI felt native to the product, because it was.
Send me your app and what you'd like AI to do, and I'll tell you exactly how it fits.
I work with the OpenAI and Claude APIs and ship production-ready integrations: proper error handling, retries, rate limiting, and token cost optimization so your bill stays predictable.
For MyRunStory, I added AI coaching on top of an existing fitness app analyzing each user's data and generating personalized feedback. The AI felt native to the product, because it was.
Send me your app and what you'd like AI to do, and I'll tell you exactly how it fits.
Web Programming Project
API Development, API IntegrationProgramming Languages
PHP, Python, TypeScriptCoding Expertise
Performance OptimizationWhat's included
| Service Tiers |
Starter
$249
|
Standard
$499
|
Advanced
$799
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 12 days |
Number of Revisions | 1 | 2 | 3 |
Source Code | - | - | - |
1 review
(1)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
RH
Riza Abdul H.
May 20, 2026
Next.js Fullstack Developer — B2B Escrow Platform Backend (MVP, Fixed Price)
He is highly trustworthy and consistently delivers excellent performance while meeting every milestone professionally and on time. Communication throughout the project was smooth, responsive, and reliable. The quality of work exceeded expectations, and the attention to detail was impressive. I would definitely hire him again for future projects and highly recommend him to anyone looking for a dependable professional.
About Fachri
AI-Integrated Full-Stack Developer | Next.js & Laravel | LLM & SaaS
Kudus, Indonesia - 3:14 am local time
I work full-stack: Next.js on the frontend, Laravel or Node.js on the backend whichever fits your stack. My focus is getting the fundamentals right data modeling, API design, auth, and error handling so what I ship keeps working after launch, not just in the demo. I'm comfortable building from scratch or going into an existing codebase to extend and stabilize it.
What I Build
→ AI-powered SaaS - multi-tenant architecture, subscription billing, LLM features built into the product, not bolted on
→ Full-stack applications - Next.js frontend, Laravel, Node.js, or FastApi backend, REST APIs
→ Internal tools - custom dashboards, data pipelines, role-based systems
AI Integration Into SaaS
→ OpenAI API & Claude API - chat, completions, function calling, structured outputs
→ RAG systems - vector search, knowledge base ingestion, context-augmented responses
→ AI features inside your SaaS - smart search, content generation, AI assistants
→ Production-ready - proper error handling, retries, rate limiting, token cost optimization
Recent work
Sequan - B2B Escrow Platform (Next.js 14, Prisma, PostgreSQL): built a complete backend into an existing 30-page frontend auth, wallet, document upload, email notifications, and a milestone-based payment flow. All three milestones delivered on schedule.
MyRunStory - AI Fitness SaaS (Next.js, Strava OAuth, OpenAI, Stripe, Redis): syncs workout data from Strava, analyzes performance trends, and generates personalized AI coaching, with full Stripe subscription billing.
StockBot ID - AI Stock Analyst (Python, FastAPI, Claude, ChromaDB): a real-time analysis tool with a full RAG pipeline scrapes and embeds news, injects context into Claude prompts for buy/sell signals, with technical-indicator charts, watchlists, and price alerts.
Tech Stack
Frontend: Next.js, React, TypeScript, Tailwind, Shadcn
Backend: Laravel, Node.js, Python, Express, NestJS, Redis
Database: PostgreSQL, MySQL, Supabase, MongoDB
Auth: NextAuth, Laravel Sanctum, Clerk, JWT, RBAC
Payments: Stripe, Laravel Cashier
Deploy: Docker, AWS, Vercel, Railway
How I work
I take ownership from architecture to deployment. You'll get clear milestones, honest timelines, code that's documented and maintainable, and steady communication throughout no disappearing mid-project.
Have a project in mind? Send me the details I'll tell you honestly if it's a fit before we start.
Steps for completing your project
After purchasing the project, send requirements so Fachri can start the project.
Delivery time starts when Fachri receives requirements from you.
Fachri works on your project following the steps below.
Revisions may occur after the delivery date.
Setup, integrate & deploy
I set up the AI pipeline, connect it to your data or tools, test the responses for accuracy, then deploy it production-ready with error handling.