You will get get a Secure AI Backend API (FastAPI + GPT-4 + PostgreSQL)
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Project details
I will design and develop a production-ready AI backend using FastAPI integrated with GPT-4 or other large language models, secure authentication, and a scalable database architecture. This solution is built for startups and enterprises that require reliable, secure, and scalable AI-powered APIs.
With over 10 years of experience in backend architecture and AI systems, I focus on clean system design, API performance, security best practices, and deployment-ready infrastructure. The backend will include proper request validation, role-based authentication, database integration (PostgreSQL / MongoDB), logging, and modular architecture for future scaling.
Whether you need a GPT-powered SaaS backend, internal AI automation API, or enterprise conversational engine, I deliver production-grade code ready for deployment in cloud environments.
With over 10 years of experience in backend architecture and AI systems, I focus on clean system design, API performance, security best practices, and deployment-ready infrastructure. The backend will include proper request validation, role-based authentication, database integration (PostgreSQL / MongoDB), logging, and modular architecture for future scaling.
Whether you need a GPT-powered SaaS backend, internal AI automation API, or enterprise conversational engine, I deliver production-grade code ready for deployment in cloud environments.
AI Development Type
Deep Learning, Knowledge Representation, Model Tuning, Software MaintenanceAI Tools
Amazon SageMaker, MLflow, NVIDIA AI Platform, Open Neural Network Exchange, PyTorch, TensorFlowAI Development Language
PythonWhat's included
| Service Tiers |
Starter
$20
|
Standard
$35
|
Advanced
$60
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 15 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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SK
Sohail K.
May 11, 2026
AI Automation Workflow
Great help with azure cloud migration and knowledge of devops methodology.
JR
Jermaine R.
Apr 9, 2026
Generating Educational Content with ChatGPT
Wajeeha was responsive and quickly and professionally completed the task of generating educational content with ChatGPT! I look forward to working with her again in the immediate future!
DO
Dave O.
Mar 21, 2026
AI Model Development and Infrastructure Setup
Extremely pleased with the final solution! The architecture is robust, scalable, and precisely aligned with our AI/ML requirements. Communication was outstanding throughout the development process — highly responsive, receptive to feedback, and agile in delivering iterations. The attention to detail was exceptional, from model optimization and code quality to comprehensive documentation and system integration. They clearly prioritize technical excellence and understanding business objectives. I'd highly recommend them for AI/software development initiatives and would definitely engage them again. Excellent work!
About Wajeeha
AI Engineer | Machine Learning & Generative AI Specialist | LLM & RAG
100%
Job Success
Gilgit, Pakistan - 11:35 am local time
I design and deploy production-grade AI solutions ML models, GPT-powered applications, RAG systems, and AI automation workflows that help businesses reduce manual effort, increase speed, and unlock data-driven decision-making.
🔹 Core Expertise
Experienced in designing scalable AI architectures using Azure serverless infrastructure, OpenAI APIs, and modern vector search frameworks.
• Machine Learning model development & deployment (supervised/unsupervised)
• Predictive modeling, forecasting, and data-driven insights
• NLP pipelines (text classification, extraction, summarization, routing)
• Generative AI & LLM applications (GPT-4 / GPT-4o / Claude / Gemini)
• Advanced Prompt Engineering & structured outputs
• Retrieval-Augmented Generation (RAG) architecture
• Vector databases & semantic search (FAISS, Pinecone, ChromaDB)
• LLM integration via APIs (OpenAI API, Azure-based serverless workflows)
• AI agents, chatbots, and conversational systems
• AI automation using APIs and workflow tools (n8n, Make, Zapier)
• Hallucination mitigation, response validation, and reliability strategies
I focus on building scalable, reliable, and maintainable AI systems — not experiments.
🧠 Notable AI Projects Delivered
📩 AI-Powered Email Intelligence System (Azure Functions + GPT)
Designed and deployed a serverless AI email triage system for an organization processing 1000+ emails daily.
🔹 Problem
Manual review was overwhelming, causing delayed responses to high-priority communications.
🔹 Solution
• Implemented Azure Functions for automated email ingestion
• Integrated GPT API for intelligent classification & urgency scoring
• Built routing logic to push only critical emails to priority Outlook inbox
• Automated categorization of non-urgent emails
🔹 Result
✔ Significantly reduced manual workload
✔ Improved response time for urgent communications
✔ Created scalable, automated email processing pipeline
🤖 Custom GPT Chatbots & AI Assistants
Built GPT-powered assistants for customer support, internal help desks, and domain-specific chatbots.
• Chatbot development with GPT models
• RAG-based knowledge grounding for accurate answers
• Vector search + retrieval pipelines
• API integration with websites, tools, and internal systems
🏢 Internal RAG Knowledge Assistant
Created internal knowledge assistants trained on company docs and databases.
• LangChain-powered RAG architecture
• Vector indexing (FAISS/Pinecone/ChromaDB)
• Secure doc ingestion + retrieval
• Context-aware responses with reliability controls
If you're looking to build ML models, develop LLM/GPT applications, create a RAG-based assistant, or automate business workflows using AI I can help.
Steps for completing your project
After purchasing the project, send requirements so Wajeeha can start the project.
Delivery time starts when Wajeeha receives requirements from you.
Wajeeha works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Architecture Design
Backend Development