Vishal Kumar

AI Researcher

Bengaluru, Karnataka, India9 yrs 9 mos experience
AI EnabledAI ML Practitioner

Key Highlights

  • Expert in credit risk analysis and scorecard development.
  • Proven track record in fraud detection and prevention.
  • Strong proficiency in machine learning and data analytics.
Stackforce AI infers this person is a Fintech expert specializing in data science and machine learning for credit risk management.

Contact

Skills

Other Skills

Artificial Intelligence (AI)CC++Churn ManagementComputer VisionContinuous Integration and Continuous Delivery (CI/CD)Convolutional Neural Networks (CNN)Current Expected Credit Loss (CECL)Data AnalysisData AnalyticsData ScienceData StructuresData VisualizationDeep LearningDocker

About

Vishal Kumar is a Principal Data Scientist with 8 years of experience in credit risk analysis, scorecard development and validation, and machine learning. He holds an M.Tech degree in Computer Technology with a specialization in Cognitive and Intelligent Systems processing from IIT Delhi. Vishal is proficient in Python and R programming languages, with expertise in data extraction, manipulation, and analysis using libraries such as NumPy, Pandas, and Matplotlib. He has worked with various machine learning algorithms, including Linear Regression, Logistic Regression, Decision Tree, Random Forest, and Neural Networks. In his current role as a Lead Data Scientist at Paytm, Vishal has developed fraud detection models and optimized customer acquisition strategies for personal loans. He has also built application scorecards for accurate evaluation of loan applications. Previously, as a Senior Data Scientist at Neo Finance, he constructed credit scorecards for micro, small, and medium-sized enterprises and developed an automobile credit model for risk management. He has experience in real-time predictions, recommendation engines, and large dataset analysis. During his tenure at HCL Software, Vishal contributed to credit card customer strategy by building machine learning products and providing risk consulting. He implemented demand forecasting models, resulting in improved data forecast accuracy. Vishal holds a B.Tech degree in Computer Science and Engineering and is proficient in tools such as Power BI and Jupyter Notebook. He is fluent in English and Hindi. Areas of expertise: - Underwriting model development - Credit risk analysis - Fraud detection - Scorecard development and validation for consumer, commercial, and microfinance sectors - Application, behavior, collection, and recovery scorecard development and validation Contact: - Mobile: +91 9717733846 - Email: linkupvis@outlook.com Specialties: -- Software skills: Python, SQL, Keras, Tensorflow, Pandas, Numpy, Docker, Kubernetes, Google Cloud Platform -- Supervised and unsupervised learning, Machine Learning, Deep Learning, Predictive Modeling, Decision Trees, Recurrent Neural Networks (RNN), Feature Engineering, Data Analysis, data modeling, orchestration, cloud deployment, automation, CI/CD

Experience

9 yrs 9 mos
Total Experience
1 yr 7 mos
Average Tenure
1 yr 10 mos
Current Experience

Bharatpe

Principal Data Scientist

Aug 2024Present · 1 yr 10 mos · Gurugram, Haryana, India · On-site

  • Churn Prediction & Reactivation Strategy: Developed and deployed a robust churn prediction model to identify merchants at risk of attrition using behavioral, transactional, and engagement data. This model enabled targeted re-engagement strategies, improving merchant retention by 20% and reducing churn by 5%.
  • Uplift Modeling for Campaign Optimization: Designed an uplift modeling framework to identify high-impact segments most responsive to reactivation campaigns. This uplift strategy helped optimize resource allocation and increased ROI on campaign spends.

Paytm

Lead Data Scientist

Jan 2023Aug 2024 · 1 yr 7 mos · Bengaluru, Karnataka, India · Remote

  • Fraud Model:
  • I developed a highly effective Fraud model aimed at detecting Straight Rollers within the Personal loan portfolio. By utilizing advanced data analytics and machine learning techniques, I successfully identified and prevented fraudulent loan applications. This model significantly enhanced the overall security and integrity of the loan application process, protecting the organization from potential financial losses.
  • New to Credit Model:
  • In my role, I created the NTC (Paytm Thin Bureau Thin) Acquisition Model for Personal loans. This innovative model optimized customer acquisition strategies by targeting individuals with limited or no credit history. By leveraging alternative data sources and advanced analytics, I enabled the organization to make informed lending decisions and streamline the loan application process for individuals who were new to credit. This resulted in increased loan approval rates and improved customer satisfaction.
  • Acquisition Model:
  • As part of my responsibilities, I developed an Application Scorecard specifically designed for evaluating Personal loan applications. This scorecard incorporated various factors related to creditworthiness and risk assessment, enabling accurate and efficient evaluation of loan applications. By implementing this model, the organization was able to make informed decisions based on data-driven insights, resulting in reduced default rates and improved portfolio performance.
  • Behavioral Scorecard :
  • Spearheaded the creation of a groundbreaking personal loan payments feature, revolutionizing the mapping of customer payment behavior. Achieved an impressive 88% AUC in behavioral scores by leveraging Paytm features and the newly developed payment feature. Conducted comprehensive vintage and roll rate analysis to define optimal target parameters. Engineered efficient data and scoring pipelines, ensuring seamless integration and operational excellence.

Neo verify

Senior Data Scientist

Jul 2021Dec 2022 · 1 yr 5 mos · San Jose, California, United States (Remote)

  • 1. Application Scorecard:
  • As a Data Scientist, I spearheaded the development of state-of-the-art Credit Risk Scorecard Models for over 32 clients in the autoloan industry. I utilized statistical predictive models like logistic regression to create tailored scorecards that accurately assessed credit risk. Additionally, I improved the existing scorecard models for older clients by incorporating additional features and leveraging advanced data analytics techniques. These scorecard models enabled our clients to make informed lending decisions, resulting in improved portfolio performance and reduced default rates.
  • 2. Behavioral Scorecard:
  • In this project, I focused on assessing the risk of existing customers based on their recent accounting transactions, financial information, repayment performance, delinquencies, credit bureau data, and overall relationship with the lender. I employed a combination of intensive manual feature engineering and utilized the open-source Python library Featuretools for feature abstraction and selection. By leveraging the power of machine learning techniques such as XGBoost and utilizing Optuna for hyper-parameter tuning, I developed a robust Behavioral Scorecard model. This model accurately predicted the riskiness of clients, enabling the lender to proactively take preventive actions and minimize potential losses.
  • 3. Optimize Cash Collection Using Machine Learning to Predict EMI Payment Delay:
  • In this project, I applied machine learning models to predict the likelihood of EMI payment delays. By analyzing historical cleared invoices, I developed a Payment Predictions Business Content that could accurately forecast when outstanding invoices for EMI would be paid. By identifying invoices that were likely to be paid late, I enabled collection managers to focus their efforts on customers with high overdue receivables. This optimization of collection strategies led to improved cash flow and enhanced efficiency.

Hcl software

Senior Software Engineer(Data Science)

Jul 2019Jul 2021 · 2 yrs · banglore

  • Implemented Deep learning, Reinforcement Learning, recommender systems for Database performance optimization solutions at a production scale.
  • Deployed auto-scalable machine learning application on Google cloud platform with Kubernetes.
  • Organized organization-wide Tech Meetup on Artificial Intelligence.
  • Participated in organization-wide Machine Learning and Cloud-Native Hackathon.

Indian institute of technology, delhi

Teaching Assistant

Jul 2017Jul 2019 · 2 yrs · Greater Delhi Area

Precision components & engineers

Analyst

Aug 2016Jul 2017 · 11 mos · Delhi, India

Education

Indian Institute of Technology, Delhi

Master's degree — Computer Technology/Computer Systems Technology

Jan 2017Jan 2019

DIT UNIVERSITY

Computer Science

Jan 2012Jan 2016

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