Vignesh Gopalakrishnan

Software Engineer +91-984*******

linkedin.com/in/vignesh1609 github.com/vignesh1609 Summary

A goal oriented professional offering 2.7 years of experience in ETL and Reporting. Highly Skilled in Data Analysis, Tableau, ETL, Predictive modelling.

Good Knowledge in descriptive statistics and Knowledge in filtering, cleaning and converting unstructured data into usable data sets that can be analyzed to extract insights.

Knowledge in working with visualization tools such as tableau and developed business reports for Performance Management.

Pursuing PGP in Artificial Intelligence and Machine Learning at Great Lakes Institute of Management.

SKILLS

Machine Learning: Classification, Regression, Ensemble Techniques, Clustering, Featurization, Model Selection & Tuning.

Programming Language: Python.

Database Language: SQL, PostgreSQL

Data Reporting Tool: Tableau.

Data Extraction Tool: Informatica.

EXPERIENCE

Systech Solutions, Chennai – Software Engineer.

May 2019 - PRESENT

● Worked with business stakeholders and participated in requirement gathering sessions to understand business needs for Tableau reports.

● Developed Tableau Workbooks using multiple in-built functionalities like Data blending, Cross database joins, Filters, Actions, Parameters and Buttons

● Expert level capability in Tableau calculations and applied complex, compound calculations to large, complex data sets.

● Developed Tableau data visualization for Performance Management Dashboard using Scatter Plots, Pie charts, Geographic Map, Line chart, Bar graph etc.

● Worked as Junior for Data Preparation, Explanatory Data Analysis, Data pre-processing by understanding particular line of business using Python.

● Developed Python Scripts to automate Machine Learning Model process and to connect various AWS services(IAM,EC2,S3,CloudTrail)

Tata Consultancy Services, Chennai – Assistant System Engineer Dec 2017 - Dec 2018

● Analyzed data based on Business pains to design a data mart by applying various Data Warehousing concepts.

● Designed Conceptual/Logical/Physical data model according to requirements by directly connecting with clients and performed ETL operations using Informatica Power Center.

● Tested Target database with various testing methods like Column level check, Row count, Distinct record check, stratification test and random record test.

● Maintained Project documentation relating to testing, coding and logic of ETL process. PROJECTS

● Bike Demand Predictions:

Built a ML Regression model that predicts total number of bikes will be rented using weather data and related features.

Algorithms used: Linear Regression, Decision Tree Regressor, Random Forest Regressor.

Git: Predict Bike Sharing Demand

● Readmission Rate for Hospital:

Built a ML classification model that identifies whether the patients will be readmitted within thirty days or not.

Algorithms used: Logistic Regression, Decision Tree and Random Forest

Git: Readmission Rate for Hospital

● Kindly check my git hub link for other projects. CERTIFICATIONS or AWARDS

● Tableau Desktop Specialist.

● The Analytics Edge by EDX.

● Artificial Intelligence and Advanced Analytics Certificate(4 Months Extensive Classroom Training)

EDUCATION

Post Graduate Program in Artificial Intelligence and Machine Learning -Great Lakes Institute of Management, Chennai.

Bachelor of Engineering in Computer Science- Rajalakshmi Engineering College, Chennai.

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