I will build a fraud detection and anomaly detection system
About this Gig
Fraud costs businesses billions every year. I build machine learning fraud detection and anomaly detection systems that flag suspicious activity in real time before it becomes a loss.
I specialise in imbalanced classification problems (fraud is rare by nature), using XGBoost, Random Forest, and isolation forests with SMOTE oversampling to build models that don't miss fraudulent transactions. The result is a system your team can trust and act on.
What you get:
- Exploratory data analysis on your transaction data
- Trained fraud or anomaly detection model
- Threshold tuning for your precision vs recall tradeoff
- Interactive dashboard for monitoring flagged transactions
- Model evaluation report (F1, recall, precision, AUC)
- Clean, documented Python codebase
Who this is for: fintech companies, e-commerce platforms, payment processors, and any business handling transaction data that needs a smarter way to catch bad actors.
Programming language:
Python
•
SQL
Frameworks:
Scikit-learn
•
DeepPy
•
PyTorch
•
Panda
Tools:
Jupyter Notebook
•
Excel
•
Colab
My Portfolio
FAQ
What type of data works for this?
Transaction records with timestamps, amounts, and any behavioral features. The more context per transaction, the better the model performs.
How do you handle class imbalance?
I use SMOTE, cost-sensitive learning, and threshold tuning to ensure fraud cases aren't drowned out by legitimate transactions.
Can this run in real time?
Yes — the Premium package includes a FastAPI endpoint you can call from your application for real-time scoring

