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Nimrod Oren

Cloud and Big Data Consultant


Consultant for Cloud, Big Data and Apache Spark projects with over 15 years of experience in database design, administration and maintenance. Experience in architecture , design and implementation of information systems.

Work experience

Nov 2011Nov 2014

Oracle Database Expert


I joined Amdocs NBU to promote a product migration from SQL Server on Windows architecture on one based on Oracle and Linux. The process included re-designing of existing processes and designing of new processes.
I was a part of successful implementation of the product on several client sites, including sizing and initial design until the final delivery and ongoing development and support. Implementation was done on very tight schedules and high effort. 
I lead a team of DBAs that were responsible for the company's largest implementation dealing with both applicative and infrastructure aspects. As part of this project I designed, developed and implemented a solution which extracted mass data from the database using Oracle Data Integrator and Python.


Oracle Production DBA


I was on a temporary project as part of the production team, which is responsible for the entire production system databases, including backup and recovery, upgrades and general care of database problems. In addition, I also wrote papers about database development environments and database version control tools.

Mar 2009Nov 2010

Oracle DBA

3i-Mind/Logic Industries

I lead a small development team and was the DBA for a project loading and processing high volumes of records per day. I was also responsible for the loading engine that was based on Oracle Data Integrator (ODI).

In this position:

  • I worked closely with customers and on customer sites
  • Tuned and improved database and application performance
  • Promoted the project on the way to being fully production
  • Established a RAC cluster based on Oracle 11gR2 on Solaris
  • Mastered Oracle Data Intergrator (ODI)
  • Interviewed and hired new DBAs for the company
Feb 2006Dec 2008

Oracle DBA

CheckM8 LTD

I was responsible for the company's databases which are located on remote server farms.

  • Successful database upgrades from 8i to 10g.
  • Performance improvements in the application and the database.
  • Applying development methods under Oracle database environment.
  • Migrating the backup methods to RMAN
  • Migrating the Oracle operation system’s environment from Windows to Linux

Oracle and ADABAS DBA

SPL Software LTD
In this position I worked for a major IDF unit and I was responsible for one of the major datawarehouse databases and on an in-house ETL application. I was also responsible of replacing that application with Informatica.
  • Performance improvement of about 25% and replacing some manual procedures with automatic ones.
  • I combined my knowledge from the Mainframe environment and acquired new skills to improve current ETL processes.
Nov 1997Nov 2004

IS Engineer and Oracle DBA

VocalTec Communications LTD.

Designed and implemented information systems for VocalTec's internal use as well as for customers.

  • Developed and internal CRM system in Lotus Notes and implemented it among VocalTec employees worldwide.
  • Developed an E-Commerce solution based on Oracle Web Server and PowerBuilder on Windows and Solaris. The system was online for 3 years and earned $20,000 monthly.
  • Researched for new te
Sep 1991Sep 1997

Oracle and ADABAS DBA

Israeli Defense Force

I was the head of a team of 4 people responsible for a large site of ADABAS databases on mainframe servers. Later on I joined a newly established Oracle DBA team. In that position I was responsible for several new projects including Oracle installations, design and query optimizations.

  • Adminitration and management of a large number of ADABAS databases.
  • Design and implementation of new Oracle databases for several new projects including application tuning and SQL standartization


Oracle Database DBA
Good knowledge of Oracle Database from Release 7.1 to 11gR2 on various platforms including RAC, tuning and SQL tuning
Amazon Web Services

Experience Portfolio