Walter Ritzel on Experts Exchange

Walter Ritzel

Senior Software Engineer

Porto Alegre,
Brazil

Member Since: 2003/09/25

Industry: Computer & IT

Top Skills:

Query Syntax Microsoft SQL Server Python

Tech Certifications:

Verified Expert

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Total points524,902

Questions:

Solutions: 366

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Videos:

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Group Discussions: 1

Live: 10

Professional Background

Software Development Advisor

Dell Inc.

March 2009 – Present

- Currently working as development leader for the HR Reporting team, being responsible for team coordination, requirements clarification and L3 support;
- Worked as business analyst and development leader on the project to migrate the HR datawarehouse from Business Objects to OBIEE:
- Have executed gap analysis and mapping between the 2 solutions;
- Have written the requirements for data conversion;
- Managed development efforts of both internal and external (consultants) teams, using SCRUM;
- Worked as development leader for the HR Reporting team, being responsible for execute major changes in the solution (AbInitio to Power Center, Business Objects version upgrade, integration of new major data sources) and also have stabilized the solution, reducing drastically the number of issues in production.

Software Development Advisor

Dell

March 2008 – March 2009

- Development leader in charge of maintain the Program and Portfolio Management solution (Clarity) used by the Global IT team at Dell;
- Executed the project that have integrated Clarity with the Oracle Project Accounting module, allowing Dell better control over IT project expenses.

Software Developer Engineer

Dell

February 2005 – February 2008

- Worked as development leader of Product Group (PG/IT), maintaining more than 100 applications written in ASP 3.0, .NET and Java;
- Worked as development leader responsible for deploying a sales search engine tool, that integrates technologies like ENDECA search engine, Documentum and Microsoft Office tools to deliver the most current information about Dell products to Sales representatives, managing the vendor relationship and coordinating the integration between in house and vendor pieces of the final solution;
- Worked as development leader of the CMS tool responsible to administer the first Global SDLC framework developed by Dell IT. The challenges on this project were the management of development team, that does not have a stable formation, since developers were engaged on their bench time.

Developer

Accenture

2003 – 2004

Work as developer for Dell Computer Inc.

Software Developer

Other Startup Companies

January 1993 – October 2003

During this period I had worked for the following companies:
- Criar Estudio de Informatica;
- CSI - Consultoria de Sistemas de Informação;
- Binario Internet;
- Bankorp - Estratégia e Consultoria Empresarial.

I had worked as developer using technologies like: Clipper, Delphi, C++, ASP 3.0 and .NET 1.1. As database technologies, I had worked with Ingres, SQL Server and Oracle.

Education

Pontifícia Universidade Católica do Rio Grande do Sul

Master in Computer Science

Bioinformatics

2013 – 2015

Pontifícia Universidade Católica do Rio Grande do Sul

Bachelor

Computer Science

1993 – 2002

Colégio Técnico Industrial Professor Mario Alquati

Técnico em Processamento de Dados

Computer Software Engineering

1990 – 1992

Full Biography

Professional Experience:
- 20 years of experience on software development industry;
- Working for 9 years with web development using several technologies like ASP, JSP, PHP and .NET;
- Expertise in Content Management Systems (CMS) for internet/intranet websites;
- Expertise in ERP modules analysis\development: Purchasing, Quality Assurance and Production Engineering;
- Expertise in Business Intelligence, focused on Data Modeling and Data Integration(ETL);
- Currently working with Oracle Business Intelligence (OBIEE).

Languages

English

Full Professional Proficiency

Spanish

Limited Working Proficiency

Level Progress

Current: Level 16

Walter needs 53,098 points to level up.

LVL 17

What do levels mean?

Overall

16

524,902
Python

8

151,436
MySQL Server

7

102,344
Oracle Database

7

100,676
Microsoft SQL Server

6

95,617
Query Syntax

5

57,956
Microsoft SQL Server 2008

4

46,440
Databases

4

40,000
.NET Programming

4

34,425
C#

3

26,236
Scripting Languages

3

24,768
ASP.NET

3

23,150
PHP

3

21,800
Programming

3

19,168
Microsoft SQL Server 2005

2

16,043
Visual Basic.NET

2

15,264
Web Development

2

14,872
Java

2

13,300
Microsoft Access

2

13,100
Programming Languages-Other

2

10,750
VB Script

2

8,750
Web Frameworks

2

8,000
WordPress

2

8,000
Mac OS X

1

7,000
Microsoft Excel

1

6,400
ASP

1

6,000
HTML

1

6,000
SSIS

1

6,000
JavaScript

1

5,200
AWS

1

5,000
Windows 7

1

4,668
Web Languages and Standards

1

4,621
Editors IDEs

1

4,000
Game Programming

1

4,000
Git

1

4,000
Web Browsers

1

4,000
Linux

1

3,068
HTTP Protocol

1

3,000
Project Management

1

3,000
Project Management Software

1

3,000
Cloud Computing

1

2,668
Visual Basic Classic

1

2,664
DB Reporting Tools

1

2,652
Microsoft Development

1

2,336
AJAX

1

2,000
Active Directory

1

2,000
Adobe Acrobat

1

2,000
Algorithms

1

2,000
Android

1

2,000
Azure

1

2,000
Blogs

1

2,000
CSS

1

2,000
Chrome

1

2,000
DB2

1

2,000
Email Clients

1

2,000
Encryption

1

2,000
Facebook

1

2,000
Images and Photos

1

2,000
JSON

1

2,000
Linux Networking

1

2,000
Microsoft Applications

1

2,000
Miscellaneous

1

2,000
Pascal

1

2,000
Powershell

1

2,000
Programming Theory

1

2,000
SQL

1

2,000
SSL / HTTPS

1

2,000
Shell Scripting

1

2,000
Spreadsheets

1

2,000
Swift Programming

1

2,000
VBA

1

2,000
Windows Phone

1

2,000
Windows Server 2012

1

2,000
jQuery

1

2,000