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rawahabinkhalid/README.md

Hi πŸ‘‹, I'm Rawaha Bin Khalid

πŸš€ Building intelligent AI systems that turn complex data into real business impact


🧠 About Me

I’m a Lead AI Engineer and Data Scientist with 10+ years of experience building production-grade AI systems across fintech, banking, telecom, retail, and enterprise domains.

I specialize in designing and deploying end-to-end intelligent systems β€” from data pipelines to machine learning models to LLM-powered applications β€” that are scalable, explainable, and deliver real-world impact.


πŸš€ Core Expertise

  • πŸ€– Generative AI & LLM Systems (OpenAI, Azure OpenAI, AI Assistants)
  • πŸ“Š Machine Learning & Predictive Modeling (Churn, Risk, Forecasting)
  • ⏳ Advanced Modeling (Survival Models, Time Series, XGBoost, LightGBM)
  • πŸ” NLP, OCR & Computer Vision (Document AI, Multilingual OCR)
  • ☁️ Cloud AI Systems (Azure, GCP, AWS, Databricks, Vertex AI)
  • βš™οΈ ML Engineering (Pipelines, APIs, CI/CD, Production Deployment)

πŸ’‘ What Sets Me Apart

  • 🧠 Focus on systems thinking (not just models)
  • πŸ“ˆ Strong emphasis on business impact & ROI
  • πŸ” Built-in explainability (SHAP), calibration, and drift monitoring (PSI)
  • πŸ”— Experience with hybrid AI systems (ML + rules + heuristics)
  • πŸš€ Proven track record of production-grade deployments

⚑ What I'm Doing

βœ” Building LLM-powered systems & AI assistants
βœ” Designing scalable ML pipelines (data β†’ model β†’ API β†’ production)
βœ” Developing risk, forecasting & decision intelligence systems
βœ” Architecting cloud-native AI solutions
βœ” Solving real-world fintech & enterprise problems

🧩 Currently Building

  • πŸ”Ή LLM Analytics Assistant β†’ Natural language β†’ SQL engine for business users

  • πŸ”Ή AI Document Intelligence System (OCR + LLM) β†’ Structured data extraction with anti-hallucination validation


πŸš€ Featured Projects

πŸ”₯ LLM-Powered Invoice OCR System

Extract structured financial data from invoices using LLMs with anti-hallucination guarantees

🧠 Problem Traditional OCR systems produce unreliable outputs and require manual validation.

πŸ’‘ Solution LLM-based extraction pipeline with confidence scoring and validation.

πŸ“Š Impact

  • Reduced manual processing effort
  • Improved extraction reliability
  • Enabled scalable document automation

⚑ Tech: OpenAI, FastAPI, Gradio, OCR Pipeline


πŸ”₯ Salary Continuity Risk Engine

Predict salary stability across future months using survival modeling

🧠 Problem Lending systems lack visibility into future income stability.

πŸ’‘ Solution Multi-horizon survival model with explainability and real-time scoring.

πŸ“Š Impact

  • Improved risk-based decision making
  • Enabled explainable credit scoring
  • Enhanced prediction reliability

⚑ Tech: LightGBM, SHAP, FastAPI, Survival Modeling


πŸ”₯ Transaction Reconciliation Engine

Match and validate financial transactions across multiple systems

🧠 Problem Manual reconciliation is slow and error-prone.

πŸ’‘ Solution Automated reconciliation engine with multi-step matching logic.

πŸ“Š Impact

  • Reduced reconciliation effort
  • Improved financial accuracy
  • Automated reporting workflows

⚑ Tech: Python, PostgreSQL, Pandas


πŸ”₯ Identity Resolution Engine

Real-time customer identity matching using ML + rules

🧠 Problem Customer data is fragmented across systems.

πŸ’‘ Solution Hybrid ML + rule-based scoring with explainability.

πŸ“Š Impact

  • Improved matching accuracy
  • Reduced duplicate records
  • Enabled real-time resolution

⚑ Tech: Scikit-learn, FastAPI, Feature Engineering


πŸ§ͺ Tech Stack

πŸ€– AI / Machine Learning

  • Machine Learning: Scikit-learn, XGBoost, LightGBM, Random Forest, SVM
  • Deep Learning: TensorFlow, PyTorch, Keras, LSTMs, CNNs, BERT
  • Generative AI / LLMs: OpenAI, Azure OpenAI, Prompt Engineering, LLM Agents
  • NLP & Document AI: Text Extraction, OCR, Multilingual NLP (English & Urdu)
  • Computer Vision: Object Detection, Keypoint Detection, Image Processing

☁️ Cloud & AI Platforms

  • Microsoft Azure: Azure Machine Learning, Azure OpenAI, Cognitive Services, Azure Databricks, Synapse Analytics, Data Factory, Blob Storage
  • Google Cloud Platform (GCP): Vertex AI, BigQuery, Dataflow, Dataproc
  • AWS: SageMaker, Lambda, EC2, S3, RDS

βš™οΈ Data Engineering & Big Data

  • PySpark β€’ Apache Spark β€’ Dataiku DSS β€’ Talend
  • SQL β€’ PostgreSQL β€’ BigQuery β€’ Snowflake
  • Data Pipelines β€’ ETL β€’ Feature Engineering

πŸ› οΈ Backend & ML Engineering

  • FastAPI β€’ Flask β€’ Django REST Framework
  • REST APIs β€’ Microservices β€’ Model Deployment
  • Docker β€’ CI/CD Pipelines β€’ Azure DevOps

πŸ“Š Data Analysis & Visualization

  • Pandas β€’ NumPy
  • Power BI β€’ Tableau β€’ Plotly β€’ Matplotlib β€’ Seaborn

πŸ’» Programming

  • Python β€’ PySpark β€’ C# β€’ Java

πŸ“Š Impact

  • πŸ’° Saved $2M+ via fraud detection
  • πŸ“‰ Reduced loan defaults by 12%
  • ⚑ Improved reconciliation efficiency by 70%
  • πŸ“Š Increased marketing ROI by 25%

🧠 How I Build AI Systems

flowchart LR
A[Raw Data] --> B[Data Engineering]
B --> C[Feature Engineering]
C --> D[ML / LLM Models]
D --> E[APIs & Services]
E --> F[Business Applications]
Loading

πŸ† Certifications

  • 🟦 Microsoft Certified: Azure Data Scientist
  • 🟦 Microsoft Certified: Azure AI Engineer
  • πŸŸ₯ Google Cloud AI & ML Certifications

🌐 Connect With Me


⚑ Philosophy

"AI is not just about models β€” it's about building intelligent systems that create real-world impact."


πŸš€ Always building. Always learning.

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