VRAJESH K S
E: ac4bfn@r.postjobfree.com
LinkedIN: Vrajesh K S
BLOG:
http://vrajesh94.blogspot.in/
GITHUB:
https://github.com/vrajesh26
EDUCATION
PGP Business Analytics 2018
Praxis Business School
5.61/8.0 CQPI
B.E (ECE) 2015
Meenakshi Sundararajan
Engg. college(Anna Univ)
8.59/10.0 CGPA
XIIth 2011
Velammal Matric. 96.41%
school(State Board)
Xth 2009
Velammal Matric. 90%
school(State Board)
EXPERIENCE
COGNIZANT PROGRAMMER ANALYST
From [08/15] – To [06/17]
Worked for Medical devices project where I was responsible for developing SQL queries for data migration activity from one database to another. Involved in the functional testing of reports developed using Jreview, SAS, Electronic case report form and edit checks.
Received “Pillar of the Month” award for consistent performance and contribution to the project.
ANALYTICS PROJECTS
PREDICT RETAIL CHURN
PROBLEM STATEMENT- Several customers switch retail stores. It is known when a customer is going to churn, so the store can take measures to hold back the customers. Our aim is to build a model which can predict such customer churn.
DATASET- Who is Leaving? (Kaggle)
TOOLS USED- R
APPROACH- SMOTE algorithm to deal with the imbalanced dataset followed by Decision Tree algorithms, logistic regression and ensemble technique were applied for prediction.
LEADERBOARD RANK- 11
SALES PRICE PREDICTION (DATA TALES BEYOND
INFINITY)
PROBLEM STATEMENT- ChennaiEstate is a real estate firm based in Chennai that is involved in the property business for the past 5 years. Our aim is to predict the real estate sales price of a house based upon various features of the house and the sales transaction. DATASET- Data Tales Beyond Infinity (Analytics Vidhya) SKILLS
R 3.5/5
SQL 3.5/5
Python 2/5
NoSQL 2/5
Tableau 2/5
TOOLS USED- R
APPROACH- Dealt with missing data, feature engineering, Random Forest, regression models followed by variable selection and regularization techniques.
LEADERBOARD RANK- 46
LOAN PREDICTION
PROBLEM STATEMENT- Dream Housing Finance company which deals in all home loans wants to automate the loan eligibility process based on customer details. To automate this process, they have given a problem to identify the customers’ segments, those are eligible for loan amount so that they can specifically target these customers. DATASET- Loan Prediction III (Analytics Vidhya)
TOOLS USED- R, Python
APPROACH- Performed missing data imputation, feature engineering and classification algorithms, SVM, logistic regression were applied to compare and predict which model gives best accuracy.
LEADERBOARD RANK- 234
PREDICT EMPLOYEE ATTRITION
PROBLEM STATEMENT- Organizations face huge costs resulting from employee churn. Our aim is to predict which individuals might leave based on patterns and use key variables that influence churn based on IBM HR Analytics employee attrition data.
TOOLS USED- R
APPROACH- Under-sampling is performed to reduce the imbalance nature of data of interest, binning numerical variables followed by Decision Tree algorithms, logistic regression and ensemble techniques were applied for prediction.