Hi, I'm Efrain

Software Developer, and researcher in the Big Data area

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About Me

My introduction

I am a Software Developer, and researcher in the Big Data area. I consider myself an optimistic, dynamic and organized person, with a desire to improve and learn. And, here you can find my knowledge achieved.

~1
Years
experience
3+
Completed
projects
400+
Hours
coding

Skills

technologies that I use

Programming languages

+1 year

Python

SQL

Java

R

Scala

Database

1 year

Microsoft SQL Server

Oracle

PostgreSQL

MySQL

Extract, transform and load (ETL)

~1 year

Toad for Oracle

Pentaho DI

Exploratory data analysis (EDA)

~1 year

Jupyter Notebook

NumPy

Pandas

Matplotlib

Scikit-learn

Microsoft Power BI

Microsoft Excel

Big Data

~1 year

Apache Hadoop

Apache Spark

Qualification

My personal journey
Education
Professional
Experience

Degree in computer science

Universidad Mayor de San Andrés
Bolivia
2012-2018

Analysis of data

Universidad Católica Boliviana "San Pablo"
Bolivia
2019 - 2019

Information technology intern

Entidad Ejecutora de Conversión a GNV
2018 - 2018

Sharepoint Online development consultant, Remote support in Nintex Sharepoint Onpremise/Online

Training myself
2022-Present

Portfolio

here you can see my most recent works

Copacabana Festival: ER - Relational

In this project, the creation of an Entity-Relationship model and a Relational model is carried out, to then implement it to the database manager: Microsoft SQL Server through Scripts, and also have examples of SQL queries.

Repository

ETL – Distributor
(Retail)

The construction of an ETL process of a business in the Retail area is carried out, starting from an OLTP model towards an OLAP model; through scripts with the help of the tool: Toad for Oracle and by graphical interface with Pentaho DI.

Repository

Exploratory Data Analysis - Home Prices.

This project emphasizes a descriptive analysis to observe the factors that affect house prices with the help of Jupyter Notebook and Python. In addition, a Linear Regression model is built with the help of the Scikit-learn library for the prediction of house prices.

Repository

Big Data - Online Sales Transactions

This project begins with the analysis of the characteristics of customers regarding their online purchases, in order to observe the behavior and patterns of purchases. For data processing, we work with Spark and for the modeling of the Association Rules algorithm, with Spark's MLlib.

Repository

Contact

Contact me if you want us to work together

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