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Jefferson
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Jefferson

Sao Paulo, Brazil --:--:--

A senior data engineer with over 15 years of experience providing complete business intelligence solutions for medium to enterprise customers. Jefferson’s well versed designing complex data models, implementing massive ETL systems, and developing insightful dashboards / data visualizations. He’s experienced across SQL, NoSQL, Big Data, and Cloud environments.

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Skills
Years
1
2
3
4
5
6
7
8
9
10+
Unix
Hadoop
Terada
Sybase
Pentaho
Azure Data Factory
Hyperion
Linux
Talend
Azure DW
OBIEE
AWS
SQL
NetWeaver
GCP
ERP
MySQL
Splunk
Tableau
Erwin
PowerBI
Visio
SAP Hana
Azure
SQL Server
Oracle
T-SQL
PL/SQL
DB2
Cassandra
MongoDB
Python
Qlik
Machine Learning
Lumira
Redshift
Snowflake
Looker
Glue
Airflow
S3
Athena
Developer Personality

Independent

Collaborative

Trailblazer

Conservative

Generalist

Specialist

Planner

Doer

Idealist

Pragmatist

Abstraction

Control

100
50
0
50
100
Feature Experience

Data Modeling

ETL Systems

Business Intelligence

Big Data

MODERATE
EXTENSIVE
EXPERT
Cultural Experience

Consultant

Enterprise

Retail

Digital Marketing

MODERATE
EXTENSIVE
EXPERT
Portfolio

DevReady

Senior Data Enginer

Categories

Work Experience : 2020 - present

Working on ETL and Data Visualizations projects related to management, and sales. The company collects data from different sales points such as Amazon, BestBuy, and Crutchfield and loads it into an internal data warehouse. After applying some transformations, they show the data in PowerBI dashboards offering a 360o overview of product sales like sales by brand and sales by product category.

  • Data Visualization (PowerBI)
  • Development (SQL, Python)
  • ETL/Data Stores (Azure Data Factory, Azure DW, SQL Server)
  • Cloud environments (Azure)

Technologies:  PowerBI, SQL, Python, Azure Data Factory, Azure DW, SQL Server, Azure, Talend.

 

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Data Insights

Senior Data Engineer

Categories

Work Experience : 2010-2020

Developed a new enterprise business intelligence environment for the largest shoe retailer in Brazil. Responsible for designing the data model, qualifying and extracting data from multiple sources, data transformation, and implementing BI dashboards.

  • Database Administration
  • Data Visualization
  • SAP Basis Administration
  • Development
  • Machine Learning
  • ETL
  • Cloud environments
  • Enabling data for business decision

Technologies:  Big Data, Oracle, SQL Server, Talend, Tableau, PL/SQL, T-SQL, DB2, MySQL, Cassandra, SAP Hana, MongoDB, Tableau, Qlik, Lumira, PowerBI, Python, Numpy, SciPy, Pandas, DataFrames, DataStage, Pentaho, AWS, Azure, GCP, Machine Learning, Redshift, Looker, Glue, Airflow, S3, Athena

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T-Systems (T-Mobile)

Head of Big Data & Analytics

Categories

Work Experience : 2013-2015

Team lead for new and highly complex Big Data solutions for enterprise environments. Responsible for researching, advising, implementing, developing, and architecting BI solutions with leading technologies like SAP Hana, Hadoop, and Splunk.

  • Oversaw the delivery of new and highly complex high-quality Big Data solutions to clients in response to unique business requirements.
  • Coordinated technical team implementing Big Data & Analytics projects.
  • Worked with product marketing, corporate marketing, partners, alliances, creative services, and/or agencies in the development and execution of field marketing plans for Big Data solutions

Technologies:  SAP Hana, Hadoop, Splunk, Cloudera Hadoop, MySQL, DB2, Pentaho

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TIVIT

Pre-Sales / Senior Solutions Architect (SAP-RDBMS)

Categories

Work Experience : 2010-2013

He worked within a customer-facing role providing IT solutions and services with experience in managing sales of database and SAP technology solutions to mid-size and large companies. His role required skills in information architecture, business intelligence, and data management technical leadership. He earned solid experience with presentations to CIOs, CTOS, and Technical POCs.

  • Sales/Pre-sales and ongoing business operations support;
  • Big Data implementation (including SAP Hana / in-memory database technology); Tableau / Hyperion / OBIEE including sales solutions and Hadoop;
  • SAP (ERP, CRM, BW, NFe, etc.) and other critical environments architecture;
  • Technology innovation and best practices evaluation;
  • SAP NetWeaver architecture, administration, and implementation;
  • Elaborating RFCs and RFPs and proven accurate forecasts to management;
  • Recognized for the outstanding quality of customer service with numerous customer-support awards and personal recommendations from clients;

Technologies:  SAP, Oracle, DB2, SQL Server, Sybase, Terada, SAP Hana, Tableau, Hyperion, OBIEE, NetWeaver.

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Previous Roles

Categories

Work Experience : 1996-2010
  • Team Leader on Info and Data Management Center of Compentency USA/LA at IBM (2005-2010)
  • Project Manager-Information Architect/DBA at YMF (2004-2005)
  • Project Manager-DBA-Developer at Unibanco (1998-2005)
  • System Developer / Database Administrator at Promatica Sistemas e Consultoria (1996-1998)

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