Ravi Teja Gullapalli

Ravi Teja Gullapalli

ABOUT ME
Business Anlayst at American Express
Business Anlayst at American Express

I have been working on various data analytics tools of Python, Excel, R, SAS, Hive and Teradata.
Apart from basic data processing and transformation, I have developed models based on the algorithms of Suport Vector Machine, Gradient Booting Machine and Linear/Logistic Regression.
Presently, I am working at AmEx and have graduated from IIT Kharagpur in the year 2016 with majors in Electrical Engineering.

Hindi, English
New Delhi (+05:30)
Joined February 2018
EXPERTISE
4 years experience
I have been working on Python for developing various applications and for analysing Big Data. I have used Python for the purposes of Deve...
I have been working on Python for developing various applications and for analysing Big Data. I have used Python for the purposes of Developing Applications, Machine Learning and Data Analysis. Overall, I had been using Python for 5 years and as a professional for the past 1.5 years.
3 years experience
I have been working on various schema based data bases for the past 4 years, and on big databases for the past 1.5 years on a professiona...
I have been working on various schema based data bases for the past 4 years, and on big databases for the past 1.5 years on a professional front. Have obtained in depth understanding of various data processing tools and functions and still striving to develop my acumen to optimally write codes and synthesis various analysis and process data. Have been working on Hive systems on a professional front for the past year or so, on Teradata for the past 2 years. During my stint at Wipro, I have developed applications to migrate data from one big data environment to another (i.e. bi-directional movement of data from Teradata/Hive/Aster/mongoDB to Teradata/Hive/Aster/mongoDB) in Java using REST based calls.
1 year experience
I have been working on Hive for various data processing things using SQL based Hive Queries. Have gained decent enough knowledge to do an...
I have been working on Hive for various data processing things using SQL based Hive Queries. Have gained decent enough knowledge to do any kind of data processing and transformation in Hive using various functions, OLAP functions inside Hive environment optimally.
2 years experience
I've developed website for my college festival which had over 15,000 registrations and more than 1 million hits per month which was used ...
I've developed website for my college festival which had over 15,000 registrations and more than 1 million hits per month which was used for the registration of participants, setting up marketing avenues for our sponsors and various online games and interactive portals. Our team has been adjudged as a Global Finalist and 2nd in India in Google Online Marketing Challenege, 2015 for which I have developed website incorporating practices to feature in Top Searched Websites to drive organic traffic, with minimal bounce rate. Had been declared as Global Finalist(for Under-15 age category) in ThinkQuest Web Designing, where I had been responsible for the development of content and developing the website, when I was in my 9th grade (2009).
1 year experience
I have used OOP concepts for competitive programming and during my internship stint at Wipro.
I have used OOP concepts for competitive programming and during my internship stint at Wipro.
EMPLOYMENTS
Business Analyst
American Express
2017-09-01-Present
I am working at AmEx as a business analyst where my daily routine includes to analyse data to come up with various strategies to increase...
I am working at AmEx as a business analyst where my daily routine includes to analyse data to come up with various strategies to increase opertaional efficiency and increase customer engagement. I do develop models to predict various customer related metrics which could give higher correlated information about the behaviour of the customer to fine tune feature/promotion offers.
Python
MySQL
WinForms
View more
Python
MySQL
WinForms
Excel
Unix
SAS
Teradata
Apache Hive
View more
Profit Enhancement Resident
Essex Lake Group
2016-09-01-2017-09-01
Project Title: Operational Sales and Servicing model for Bankers – for one of world’s largest retail branch network bank  Worked on prov...
Project Title: Operational Sales and Servicing model for Bankers – for one of world’s largest retail branch network bank  Worked on providing banker staffing guidance for one of world’s largest retail banks, which is aimed at $35 million expense reduction  Created a model to estimate banker requirement and mix at Branch level to achieve a desired Servicing-SLA and Customer-Engagement  Developed activity based tracker to understand work drivers and variability across network by banker roles- Personal/Relationship in SAS  Integrated multiple data sources, from Teradata, to uncover inter-linked aspects of demography, branch financials on banker performance  Rolled-up platform transactions(120M) into banker-customer sessions and computed work rates for each type of banker–customer session  Underwent a month long training of analytical tools - R, SAS and Business Case Study; eventually topping one - off evaluated training of R
R
Excel
SAS
View more
R
Excel
SAS
Teradata
Business analytics
Business analysis
View more
PROJECTS
Develop an algorithm to validate the identity of a person using signature as a biometric for mobile devices
2016
- Studied significant parameters and time varying features of signature to develop computationally light algorithm for identity validatio...
- Studied significant parameters and time varying features of signature to develop computationally light algorithm for identity validatio - Synthesized a workflow for identity authentication for limited memory mobile devices using Two and One Class Support Vector Machine
Python
R
Machine Learning
View more
Python
R
Machine Learning
MATLAB
AI (artificial intelligence)
View more