You will get Secure AI Backend API with FastAPI, GPT-4 & PostgreSQL
Rising Talent
Project details
Looking for a secure and scalable backend for your AI-powered application?
I will develop a production-ready AI backend API using FastAPI, OpenAI (GPT-4), and PostgreSQL. The system will be designed for performance, security, and scalability, making it suitable for real-world applications.
What I can build for you:
• FastAPI-based backend with clean architecture
• Integration with GPT-4 / OpenAI for AI features
• PostgreSQL database setup and schema design
• Secure API (JWT, API keys, or OAuth)
• REST API endpoints for frontend or mobile apps
• Structured and maintainable codebase
• Optional deployment on AWS or GCP
Use cases:
• AI SaaS platforms
• Chat-based applications
• Automation tools
• Internal AI systems
Why work with me:
• Strong experience in backend development and AI systems
• Focus on secure and production-ready solutions
• Clean, scalable, and maintainable code
If you need a reliable backend foundation for your AI product, I can help you build it the right way.
I will develop a production-ready AI backend API using FastAPI, OpenAI (GPT-4), and PostgreSQL. The system will be designed for performance, security, and scalability, making it suitable for real-world applications.
What I can build for you:
• FastAPI-based backend with clean architecture
• Integration with GPT-4 / OpenAI for AI features
• PostgreSQL database setup and schema design
• Secure API (JWT, API keys, or OAuth)
• REST API endpoints for frontend or mobile apps
• Structured and maintainable codebase
• Optional deployment on AWS or GCP
Use cases:
• AI SaaS platforms
• Chat-based applications
• Automation tools
• Internal AI systems
Why work with me:
• Strong experience in backend development and AI systems
• Focus on secure and production-ready solutions
• Clean, scalable, and maintainable code
If you need a reliable backend foundation for your AI product, I can help you build it the right way.
AI Development Type
Model Tuning, Recommendation SystemAI Tools
PyTorch, TensorFlowAI Development Language
PythonWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
AI Model Integration | |||
Detailed Code Comments | - | - | |
Knowledge Graph | - | - | |
Model Documentation | - | ||
Ontology | - | - | - |
Source Code | |||
Taxonomy | - | - | - |
Frequently asked questions
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Dave O.
May 24, 2026
AI Dev Project
Working with this developer was an absolute pleasure from start to finish. Their expertise in AI and machine learning is genuinely impressive — they took a complex brief, asked exactly the right questions, and delivered a solution that exceeded every expectation we had.
Communication was outstanding throughout the project. Updates were proactive, timely, and always clear. When we hit an unexpected challenge mid-way through, they identified the issue quickly, proposed two solid options, and had us back on track within hours.
The final deliverable was clean, well-documented, and production-ready. No hand-holding required on our end. This is the kind of developer you hope to find on Upwork but rarely do.
Will absolutely be hiring again for our next AI project. Highly, highly recommended.
Communication was outstanding throughout the project. Updates were proactive, timely, and always clear. When we hit an unexpected challenge mid-way through, they identified the issue quickly, proposed two solid options, and had us back on track within hours.
The final deliverable was clean, well-documented, and production-ready. No hand-holding required on our end. This is the kind of developer you hope to find on Upwork but rarely do.
Will absolutely be hiring again for our next AI project. Highly, highly recommended.
JN
Julio N.
May 20, 2026
AI Golf Coaching
What I would like other clients to know is that Kiran was very helpful, professional, and reliable throughout our automation project.
I worked with her on a workflow automation project connected to building a Knowledge Base system. The workflow involved moving from recordings made with Plaud, to organizing and consolidating transcripts, and ultimately helping automate the process of building a Canonical Knowledge Base.
Kiran understood the overall goal, helped structure the automation, and completed her part of the work responsibly. She communicated efficiently, responded clearly, and helped move the project forward in a practical and organized way.
What I appreciated most was that she was easy to work with and stayed focused on solving the actual workflow problem. Automation projects can sometimes be confusing because there are many moving pieces, but she helped simplify the process and contributed to creating a system that works better and saves time.
Overall, I had a very positive experience working with Kiran. She did her part well, communicated professionally, and helped me automate an important part of my work. I would recommend her to other clients looking for support with workflow automation, systems organization, or similar projects.
I worked with her on a workflow automation project connected to building a Knowledge Base system. The workflow involved moving from recordings made with Plaud, to organizing and consolidating transcripts, and ultimately helping automate the process of building a Canonical Knowledge Base.
Kiran understood the overall goal, helped structure the automation, and completed her part of the work responsibly. She communicated efficiently, responded clearly, and helped move the project forward in a practical and organized way.
What I appreciated most was that she was easy to work with and stayed focused on solving the actual workflow problem. Automation projects can sometimes be confusing because there are many moving pieces, but she helped simplify the process and contributed to creating a system that works better and saves time.
Overall, I had a very positive experience working with Kiran. She did her part well, communicated professionally, and helped me automate an important part of my work. I would recommend her to other clients looking for support with workflow automation, systems organization, or similar projects.
ls
laura s.
Feb 26, 2026
Excel + ChatGPT Data Operations Assistant – 4 Day Intensive Sprint
Excellent experience working together. Delivered high-quality work with a very quick turnaround, leveraging spreadsheets and ChatGPT research efficiently and accurately. Communication was clear, deadlines were met, and the final output was well-organized and easy to use. Would absolutely work together again.
KS
Kiran S.
Feb 25, 2026
ai engineer
Great experience working together. Delivered high-quality work on time and communicated clearly throughout the project. Would gladly collaborate again.
NK
Noman K.
Jan 29, 2026
AI Engineer Needed for Generative AI Application
Outstanding work. Highly skilled Machine Learning Engineer with strong Generative AI expertise. Great communication and timely delivery. Would definitely work with them again.
About Kiran
AI Engineer | Generative AI |ChatGPT Expert | AI Automation Specialist
100%
Job Success
Gilgit, Pakistan - 8:26 pm local time
Specializing in Machine Learning, Generative AI, and Large Language Model (LLM) systems, I design and deploy solutions that reduce manual work, improve response time, and scale business workflows.
🔹 CORE EXPERTISE
Experienced in designing scalable, production-grade AI architectures using OpenAI APIs, LLM frameworks, and modern vector search systems.
• AI Automation Systems (n8n, Make, API workflows)
• LLM Applications (GPT-4, GPT-5, Claude, Gemini)
• Agentic AI Systems (LangChain, LangGraph)
• Retrieval-Augmented Generation (RAG)
• Vector Databases (FAISS, Pinecone, ChromaDB)
• AI Voice Agents (Twilio, Retell AI, real-time call automation)
• NLP Pipelines (classification, extraction, summarization)
• AI Chatbots & Conversational Systems
• API-based AI integrations & backend systems
• Hallucination mitigation & response validation
• Prompt Engineering
🧠 NOTABLE AI SYSTEMS
📞 AI Lead Qualification & CRM Automation System
Designed an AI-driven system to automate inbound lead handling, qualification, and CRM updates.
🔹 Solution
• GPT-based lead qualification and scoring
• Conversation analysis and structured data extraction
• CRM integration for real-time updates
• Automated routing and prioritization
🔹 Result
✔ Faster lead response time
✔ Reduced manual screening effort
✔ Improved sales workflow efficiency
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⚙️ AI Workflow Automation System (n8n + GPT)
Built end-to-end automation pipelines connecting AI models with business tools and APIs.
🔹 Solution
• Multi-step workflows using n8n
• GPT-based decision-making and automation
• Integration with email, CRM, and databases
• Error handling and scalable execution logic
🔹 Result
✔ Reduced repetitive manual tasks
✔ Improved operational efficiency
✔ Enabled scalable automation
━━━━━━━━━━━━━━━━━━━
📄 AI Data Extraction & Document Processing System
Developed AI pipelines to extract, structure, and analyze data from unstructured documents.
🔹 Solution
• NLP + GPT-based extraction pipelines
• Classification and structuring workflows
• Processing PDFs, reports, and raw text
• Clean structured outputs for downstream systems
🔹 Result
✔ Converted unstructured data into usable formats
✔ Improved analytics and reporting workflows
✔ Reduced manual data processing time
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🤖 GPT Chatbots & AI Assistants
Built domain-specific AI assistants for customer support and internal operations.
• GPT-powered chatbot development
• RAG-based knowledge grounding
• Vector search + retrieval pipelines
• API integrations with business systems
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🏢 Internal RAG Knowledge Systems
Developed AI assistants trained on company documents and internal data.
• LangChain-based RAG architecture
• Vector indexing (FAISS / Pinecone / ChromaDB)
• Secure document ingestion pipelines
• Context-aware response systems
If you're looking to build ML models, develop LLM/GPT applications, create RAG-based assistants, or automate business workflows using AI, I can help you design and deploy a scalable, production-grade solution.
Steps for completing your project
After purchasing the project, send requirements so Kiran can start the project.
Delivery time starts when Kiran receives requirements from you.
Kiran works on your project following the steps below.
Revisions may occur after the delivery date.
Understand your requirements, use case, and system architecture
Design API structure, database schema, and authentication flow