Rajkumar Selvaganapathi
Chennai
Summary
Results-driven Data Scientist with over 4.5 years of experience in the insurance and finance domains. Specialized in fraud detection, customer segmentation, credit risk modeling, and supply chain analytics. Proficient in Python, PySpark, and SQL with expertise in developing scalable machine learning solutions. Adept at transforming complex datasets into actionable insights that drive business decisions. Strong communicator and cross-functional collaborator with a track record of deploying impactful solutions and improving business outcomes.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Senior Data Scientist / Analyst II – Data
Dun & Bradstreet
Chennai
07.2022 - Current
- Built an ML-based employer designation classification system, improving data reliability by 35%.
- Developed a delinquency score model for credit risk assessment, supporting lender decision-making.
- Engineered a supply chain risk index using ensemble ML algorithms.
- Analyzed and optimized risk models processing millions of records, improving model accuracy.
- Delivered investigative reports for DUNS records to support client risk profiling.
- Collaborated cross-functionally, presenting insights and strategies in team discussions.
Software Engineer – Data
Larsen & Toubro Infotech Ltd.
Chennai
05.2019 - 06.2022
- Processed 100K+ rows of raw client data for classification model training.
- Developed customer segmentation using DBSCAN after thorough feature engineering.
- Built and deployed a Random Forest model to detect fraudulent insurance claims.
- Validated license plate recognition models using OpenCV and other CV techniques.
- Maintained Jira tasks and collaborated on agile sprints and daily stand-ups.
Education
B.Tech - Electronics and Communication Engineering
National Institute of Technology
Puducherry01.2019
Higher Secondary Certificate (H.S.C) -
Tamil Nadu Board
01.2015
Skills
- Languages: Python, Pyspark, SQL
- ML Libraries: Scikit-learn, TensorFlow, Keras, Pandas, NumPy, Matplotlib, Seaborn
- Databases: Oracle, MySQL, MongoDB
- Visualization: Power BI, Seaborn, Matplotlib
- Platform: Databricks, VS Code, PyCharm, Git
- Concepts: Supervised/Unsupervised Learning, Feature Engineering, EDA, Deep Learning (CNN), Model Evaluation, Hyperparameter Tuning
Certification
- Global Certification in Artificial Intelligence & Data Science – INSAID
- Deep Learning Specialization – DeepLearning.AI (Andrew Ng)
- Microsoft Power BI Certification – Simplilearn
Languages
English – Fluent, Tamil – Native
Hobbies and Interests
Tech Blogging, AI/ML Research, Cricket
Projects
Sign Language to Speech Conversion Prototype, Built a prototype using flex sensors and SVM Classifier to translate hand gestures into speech., Integrated with Bluetooth module for real-time communication., IEEE Publication: https://ieeexplore.ieee.org/document/8929356
Timeline
Senior Data Scientist / Analyst II – Data
Dun & Bradstreet
07.2022 - Current
Software Engineer – Data
Larsen & Toubro Infotech Ltd.
05.2019 - 06.2022
B.Tech - Electronics and Communication Engineering
National Institute of Technology
Higher Secondary Certificate (H.S.C) -
Tamil Nadu Board
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