Tableau Developer

Sreeteja Bollepalli

Phone:+1-734-***-**** Email:adif5s@r.postjobfree.com

LinkedIn:https://www.linkedin.com/in/sreeteja-bollepalli/ GitHub:https://github.com/Sreeteja27

Professional Summary:

Dedicated Data Analytics Engineer with 2+ years of experience in identifying efficiencies and problem areas within data streams, while communicating needs for projects.

Tableau developer experienced in dashboard creation, report authoring, troubleshooting and data source management.

Knowledge about usage of advanced SQL and Mongo techniques to combine multiple datasets into one so as to create even more impressive and comprehensive databases.

Ability to produce powerful interactive dashboards telling the story behind the data in an easy to understand format using Tableau.

Good knowledge of Microsoft BI reporting tools (SSRS, SSAS) and other reporting tools e.g. Power BI

Good knowledge in collecting, aggregating and moving data in and out of various data sources using Apache Kafka.

Aiming to utilize strong prioritization and analytical skills to achieve the goals of the company.

Technical Skills:

Programming Languages: Python (packages: NumPy, Scikit-learn, pandas, SciPy), Java Scripting, C, C++

Tools: Tableau, Advanced Excel, VBA Scripting, RStudio, Matplotlib, Git, Bash, Visual Studio, Jupyter Notebook, Apache Kafka, Power BI

Web Technologies: HTML5, CSS, Plotly, Mapping-web, D3.js, Flask

Databases: PostgreSQL/MySQL, MongoDB

OS: Ubuntu, Windows, Linux, MacOS

Projects:

Fires in Australia https://github.com/Sreeteja27/Project-2

In this project we wanted to look at the brightness of forest fires caused in Australia. We used the data collected by the NASA satellites Terra MODIS and Aqua MODIS from Kaggle.

Tools used: SqLite, flask, Html/CSS, javascript, jupyter notebook, sqlalchemy, simplejson

Factors affecting Life Expectancy https://github.com/Sreeteja27/Final-Project

In our project we wanted to look at different types of variables and their affect on life expectancy. We used data from WHO, World Bank, and United Nations.

Tools used: Scikit-learn, pandas, numpy, jupyter notebook, tableau, matplotlib.

Commute Chaos https://github.com/Sreeteja27/Project-1

In this project we wanted to know how the commute looks like in the Bay Area from various locations and we got to know that the most commute variation is from Moffett Field to San Francisco, so we focused on this route for our data analysis.

Tools used: Jupyter notebook, pandas, numpy, matplotlib, Google directions API.

Work Experience:

Sutherland Global Services, Chennai, TN

Data Engineer August 2017 - December 2018

Created Daily/Weekly/Quarterly/Yearly report templates in Excel.

Worked across all levels of client’s organization in order to design and build attractive, easy to use, analytics, dashboards and reports.

Created numerous dashboards in Tableau Desktop based on the data collected from Insurance App’s by importing and blending data from MS Excel and CSV files along with Oracle SQL Server Databases.

Created Bar Charts which is compiled with data sets and added trend lines and forecasting on future usage of the Insurance App.

Developed Scatter Plots and Area Maps to show states utilizing the Mobile App most vs least.

Prepare and maintain documentation for reports, metrics, and processes using Power BI.

Brainstormed ideas on what to include in views/dashboards from the data source and document on the fly business requirements.

Worked on Proof of Concepts (POC) presentation and review with project and IT lead.

Developed and reviewed SQL queries with use of joins clauses (inner, left, right) in Tableau Desktop to validate static and dynamic data for data validation.

Trained end client users on Tableau Desktop by providing step-by-step guidance from basics to advanced functions of Tableau including working with calculations, parameters, and date functions.

Key Accomplishments:

Developed and maintained reporting using MS Excel queries and SQL.

Created Crosstab’s to display underlying data based on various graphs and charts created for further analysis using Tableau.

Compiled interactive dashboards in Tableau desktop and published them to Tableau Server which allowed storytelling with Quick Filters for on demand needed information with just a click of a button.

Integrated Custom Visuals based on Business requirements using Power BI Desktop.

Environment: Tableau 8, SQL Server 2008, MS Excel

Sutherland Global Services, Chennai, TN

Data Engineer Intern July 2016 - August 2017

Used Tableau Desktop for blending databases and creating different interactive views and highly-visual dashboards.

Translated abstract data into easily-digestible and highly-visual dashboards in executive-level report deliverables.

Worked on Dual Axis & Blended Axis concept while working with reports.

Documented the use of pivot tables, tips and tricks in MS Excel for efficient data entry and analysis.

Merged spreadsheets from different sources to create a more compact and centralized data platform for easy updating and data analysis using MS Excel advanced functions and formulas.

Designed and implemented basic SQL queries for testing and report/data validation.

Worked on various Microsoft Office tools to create documents used to present data collected.

Academic Details:

Certification: I became a Certified Professional in Data Analytics and Visualization at University of California Berkeley. It is an intensive program focused on gaining technical programming skills in Excel, VBA, Python, R, JavaScript, SQL Databases, Tableau, Big Data, and Machine Learning.

Degree: Bachelor of Technology in Computer Science with a percentage of 70 at PVP Siddhartha Institute of Technology, Vijayawada, INDIA.

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