You will get ChatGPT Expert / ChatGPT API Integration / Open AI Agent Developer
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Project details
⭐ Every project is unique! Let's discuss your requirements in Upwork Chat first, so I can provide a clear timeline and a fixed price or estimated hours. ⭐
Need an AI-powered chatbot, Virtual assistant, or integration in your business with custom OpenAI-powered agents that provide intelligent automation and real-time AI-driven interactions? As a ChatGPT expert, I specialize in custom ChatGPT solutions, integrating AI into websites, mobile apps, and business workflows.
My Expertise Includes:
✅ OpenAI Development – Virtual assistants & chatbots
✅ Custom GPT Solutions – Tailored AI models that fit your industry needs
✅ AI-Powered Automations – Smart AI workflows for eCommerce, SaaS, & enterprise tools
✅ Natural Language Processing (NLP) – AI models that understand and respond accurately
✅ Integration with APIs & Platforms – Connect AI with CRM, websites, and mobile apps
✅ Image to video generation, text to audio.
Leverage AI to enhance engagement, automate tasks, and grow your business. Let’s Talk!
Need an AI-powered chatbot, Virtual assistant, or integration in your business with custom OpenAI-powered agents that provide intelligent automation and real-time AI-driven interactions? As a ChatGPT expert, I specialize in custom ChatGPT solutions, integrating AI into websites, mobile apps, and business workflows.
My Expertise Includes:
✅ OpenAI Development – Virtual assistants & chatbots
✅ Custom GPT Solutions – Tailored AI models that fit your industry needs
✅ AI-Powered Automations – Smart AI workflows for eCommerce, SaaS, & enterprise tools
✅ Natural Language Processing (NLP) – AI models that understand and respond accurately
✅ Integration with APIs & Platforms – Connect AI with CRM, websites, and mobile apps
✅ Image to video generation, text to audio.
Leverage AI to enhance engagement, automate tasks, and grow your business. Let’s Talk!
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$99
|
Standard
$249
|
Advanced
$749
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 15 days |
Number of Revisions | 1 | 3 | 5 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$100
Additional Page
(+ 2 Days)
+$150
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About Brayan David
AI-Powered Full Stack Developer | Next.js & Supabase Specialist
100%
Job Success
Cucuta, Colombia - 9:38 am local time
I am a Full-Stack Engineer focused on React, Next.js, and Supabase. I use modern AI tools (Cursor, Claude Code, Copilot) to accelerate development, but every project is grounded in structured planning and solid engineering judgment.
My workflow relies on Spec-Driven Development (SDD): we define requirements, data flow, and edge cases before writing code. Once the foundation is clear, I leverage AI to deliver faster without compromising quality, maintainability, or scalability.
Whether you need a bug fixed, a new feature added, or a full SaaS product built, I can jump into your codebase and deliver clean, production-ready solutions.
I can help you with:
→ Fix bugs in Next.js / React applications
→ Build new features and UI components
→ Develop REST APIs and backend services
→ Create dashboards and admin panels
→ Build SaaS applications and MVPs
→ Implement authentication systems
→ Integrate Stripe payments and subscriptions
→ Connect third-party APIs and services
What you can expect:
→ Speed & Quality: AI-accelerated delivery with production-ready code.
→ Clarity: Clear specs and zero ambiguity from day one.
→ Reliability: Strong communication and disciplined execution.
My tech stack:
→ React.js, Next.js, HTML, CSS, Bootstrap, Tailwind CSS
→ Bolt.new, Lovable, Cursor AI
→ Node.js, Nest.js, Express.js
→ Docker, PM2, Apache2, Nginx
→ MySQL/ PostgreSQL, MongoDB, DynamoDB, Supabase
→ React Native for cross-platform mobile apps for Android and iOS
→ AWS (EC2, S3), Vercel, Hostinger, GoDaddy, Heroku
→ APIs (Stripe, Revolut, PayPal, ChatGPT, OpenAI, Twilio)
If you’re looking for a developer who pairs modern AI speed with rigorous engineering discipline and your project fits my schedule, let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Brayan David can start the project.
Delivery time starts when Brayan David receives requirements from you.
Brayan David works on your project following the steps below.
Revisions may occur after the delivery date.
AI Strategy & Planning
Agent Development & Training