
AI Engineer for FastAPI-Powered AI Systems – Pakistan
About Our Engineers
This engineer uses FastAPI to build secure, scalable, and lightning-fast Python APIs for AI-driven applications. With 5+ years in API development and real-world experience integrating OpenAI models, they help businesses launch MVPs, automation tools, and intelligent microservices at scale.
Key Expertise & Skills
FastAPI Backend Development
GPT Integration
Whisper API Endpoints
NLP Pipelines
API Rate Limiting
OAuth2 Authentication
Task Queues
AI Workflow Automation
Pydantic Data Validation
Technologies & Tools
FastAPI
Python 3.11
OpenAI GPT-4
Whisper API
Uvicorn
Redis
Celery
PostgreSQL
LangChain
Docker
Firebase
MongoDB
PyTorch
Hugging Face
Projects Our Engineers Have Worked On
- FastAPI Chatbot Middleware – Developed a GPT-4-powered messaging API in FastAPI, with user session tracking, async responses, and Redis-based message storage for speed and scale.
Voice-to-Text Notes Processor – Built a Whisper-based audio endpoint that transcribes voice messages, summarizes key points using GPT, and stores data in Firestore for a field service app.
Document Analysis Microservice – Created a REST API to parse PDF, extract metadata, and use GPT to summarize legal content for instant user insights—all in under 3 seconds.
AI Resume Matcher API – Designed a job-matching engine in FastAPI where resumes are analyzed with GPT and ranked against job descriptions with scoring feedback.
Serverless GPT Reply Engine – Built a lightweight API that takes emails or support tickets and auto-generates GPT-based replies using Uvicorn + Gunicorn deployment on AWS Lambda.
AI Lead Generator – Integrated FastAPI with GPT-4 to auto-respond to inquiry forms, classify leads, and recommend actions based on sentiment and context.
Who Should Hire This Engineer?
Startups building AI-powered SaaS tools
Product teams launching intelligent chatbots
EdTech & LegalTech needing backend automation
Agencies integrating GPT into dashboards
AI-first platforms looking for clean
testable API design