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Ulf Hellström

Ulf Hellström

Oracle Developer

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location of Ulf HellströmGreater Stockholm Metropolitan Area

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  • Timeline

  • About me

    ✨Low-code|Senior Database Engineer | SWEOUG🔭

  • Education

    • Växjö universitet, Sunnerbo Gymnasium

      -

    • Växjö University

      1987 - 1989

  • Experience

    • Softwind AB

      Jan 1989 - Jan 1995
      Oracle Developer

      Built a financial system called Mistral• Technical lead for installation and configuration of Unix hardware and software• Technical lead for installation and configuration of Oracle software on Unix/VMS plattforms• Technical lead for installation and configuration of Mistral

    • Oracle Corp.

      Jan 1995 - Jan 2005
      Premium Oracle Support Engineer

      Daily call center functionality helping customer solve all sorts of problems. Performance tuning, Backup & Recover and all sorts of DBA issues.

    • St. Jude Medical

      Jan 2005 - Jul 2007
      Consultant Database Administrator

      Mainly working as DBA handling day-to-day issues Implementing 10gR2 RACMigrating databases etc.

    • Com Hem AB

      Jan 2005 - Oct 2005
      Consultant PL/SQL Developer / Forms Developer /DBA

      PL/SQL and Forms DeveloperDatabase Administrator for test and development environments

    • Kentor

      Feb 2005 - Sept 2013
      Senior Consultant

      Working in the following areas and expertice - Database Administration Migrations/RAC/Installation/Performance/Partitioning/Consolidation - IT-Architecture - SQL and PL/SQL developer - Oracle APEX development and architecture for building efficient systems with APEX - Performance Tuning - Exadata Performance/Architecture/Database Developer

    • Färdtjänsten Stockholm

      Jul 2005 - Jan 2006
      Consultant Developer / DBA

      Migrating Oracle database from 8i to 10gR2Performance related issues solvedBuilding infrastructure based on Oracle Application Server 10gMigrating forms6 to forms 10

    • Tain

      Nov 2005 - Apr 2006
      Consultant Database Administrator / PL/SQL Developer / Java/JDBC

      Mainly working with performance issues getting Hibernate and Oracle co-work with high performance.Working as developer both in PL/SQL , SQL and Java/JDBC

    • Posten AB

      Apr 2006 - Oct 2010
      Consultant PL/SQL Developer / Database Administrator / Architecture

      PL/SQL Developer , DBA for Statistical /analysis system for Swedish Post.PL/SQL Developer / Architecture for Prognosis and analysis System for Swedish PostWork done in HA environment with in very high transaction intensive environment.Reporting system built in PL/SQL Webtoolkit / Oracle APEX and in Microsoft Reporting Services / Analysis Services

    • Logica

      Jun 2010 - Oct 2010
      Consultant Developer / DBA

      Outsourced from Posten Sweden to Logica. Working as PL/SQL Developer , performance , DBA and with Architecture Day-to-day incident handling and bug fixes

    • Axfood

      Nov 2010 - Feb 2011
      Consultant DBA

      Perfomance related issues. Day-to-day DBAIncident handling.Testenvironment upgrades etc.

    • Stockholms läns landsting

      Feb 2011 - Feb 2012
      Consultant Developer / Architect

      Converting batchprocessing and communications system from Windows / DOS to Oracle / LinuxConverting Forms application to Oracle APEX and enhancing overall functionalityMigrating Oracle 10gR2 databases from Windows to Oracle 11gR2 / Linux

    • Apotekens Service AB

      Feb 2012 - Feb 2013
      Consultant Database developer / administrator / architecture

      Developing Report System for internal use in Oracle APEXDeveloping new functionality for ASBug and incident handlingArchitecture and day-to-day DBA and DBUPerformance optimization in Exadata environment and DW-environment.

    • Apotekens Service

      Feb 2013 - Jun 2013
      Consultant Database Developer / Performance tuning Exadata

      Mainly focusing on helping Apotekens Service using the Exadata environment as efficient as possible. Tuning batch processes to use offloading , smartscan and OLTP processes to perform 100 or even 1000% better then before.This means I have gained good understanding for how a DBA's role is changing in engineered systems as Exadata and also I have 100% focus on working in the latest Oracle technologies.Besides Exadata continue working on improving Report System built in Oracle APEX now together with other consultants so that the customer gets the best possible view of there data. Show less

    • EpicoTech

      Oct 2013 - now
      Coach and Senior Oracle Consultant

      MiracleSweden has changed its name to EpicoTech.

  • Licenses & Certifications