Recommended expert

Jürgen Bargmann

Database Administrator and Performance Tuning Specialist

Jürgen Bargmann
Falkensee, Germany

Experience

Jul 2018 - Dec 2024
6 years 6 months
Hamburg, Germany

Database Administrator and Performance Tuning Specialist

ALD Automotive Leasing Deutschland

  • Database administration and performance tuning for Oracle databases on AIX 7.1, 7.2 with Oracle 12c and 19c
  • Troubleshooting and error resolution on RHEL 7
  • Operations automation with UNIX/Linux shell scripts, Perl programs and PL/SQL
  • Planning, preparation, execution and customer-specific review of changes and upgrades for LEASMAN and DOXIS applications
  • Incident handling including communication with outsourcing providers and business units
  • Data exchange using Data Pump
  • Visualization of database contents and monitoring results
  • Configuration of databases for Debezium and monitoring Debezium activities
  • Preparation of Oracle databases for migration to cloud environments
  • Implementation and monitoring of NIST requirements in databases
  • Automation of release upgrades for the LEASMAN application
  • Creation of operating manuals and instructions
  • Preparation of reports for GDPR information requests
Jan 2011 - Dec 2014
4 years

Database Administrator and Operations Manager

Landesbank Berlin (LBB)

  • Database administration and application operations of Oracle 10g and 11g on Solaris 10
  • Automation of operations with CA AutoSys and JIL
  • SQL tuning and performance optimization
  • Software distribution with Oracle OMS
  • Automation of database and customer application monitoring with Connect:Direct and shell scripts
  • Application development in PL/SQL, SQL and Perl for custom banking applications
Jan 2009 - Dec 2011
3 years

Migration Consultant OS-Plus

Landesbank Berlin (LBB)

  • Planning and execution of migration of OS-Plus systems and applications to Solaris 9 and 10
  • Database administration and SQL tuning with Oracle 9i, 10g and 11g
  • Application operations and support in application development
  • Job scheduling planning and creation of JIL scripts for AutoSys
  • Software distribution using Connect:Direct
  • Development of custom scripts in Perl, Java, C and shell scripts
  • Database upgrade planning and customer-specific execution
Jan 2009 - Dec 2010
2 years

Quality Assurance and Project Documentation Consultant

Commerzbank Frankfurt

  • Quality assurance and project documentation
  • Document reviews and test operations with TestDirector
  • Use of Office applications and SharePoint for documentation
Jan 2009 - Dec 2010
2 years

Consultant for Continuation/Extension

DB Systel (Deutsche Bahn)

Continuation and extension of the project from 2008–2009 in the DB Systel domain

Jan 2008 - Dec 2009
2 years

Insourcing and Migration Consultant

DB Systel (Deutsche Bahn)

  • Member of the TOV migration team for insourcing
  • Migration of old applications from third-party providers to Solaris 10 with Oracle 10g/11g
  • Use of Oracle tools, SQL, PL/SQL, UNIX scripts and Perl
Jan 2007 - Dec 2008
2 years

Database Administrator and Risk Assessment System Consultant

Commerzbank Frankfurt

  • Support, maintenance and enhancement of the risk assessment system with Oracle 11g
  • Services for developers and provisioning of development environments
  • Automation of existing administration tasks and development of monitoring tools
  • Evaluation of migration from Oracle 9i and 10g to 11g
  • PL/SQL programming
Jan 2007 - Dec 2007
1 year

System Analyst for Risk Assessment System

Commerzbank Frankfurt

  • Analysis and consolidation of the existing system
  • Preparation of migration from Solaris 9 to Solaris 10 and custom applications
  • Use of Oracle tools, SQL, PL/SQL, AutoSys and Sybase
Jan 2007 - Dec 2007
1 year

Catalog Server System Administrator

Conrad Hirschau

  • Setup, installation and launch of the catalog server on Solaris 10
  • Configuration of the storage systems
Jan 2005 - Dec 2006
2 years

Consultant for Application and Database Migration

Finanz IT, Berlin

  • Migration of proprietary monitoring applications to Tivoli TEC
  • Complex database migrations in the TB range from Oracle 8i to 9i
Jan 2004 - Dec 2005
2 years

Database Administrator

Finanz IT, Berlin

  • Migration of large databases (TB scale) from Oracle 8i to 9i
Jan 2004 - Dec 2004
1 year

Automated Reporting System Developer

Finanz IT, Berlin

  • Developed an automated reporting system for system status and availability of high-availability systems
  • Automated data analysis, processing, statistics, and email distribution via Lotus Notes with archiving in Lotus Notes

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (11 years), Information Technology (7 years), Automotive (6.5 years), and Transportation (3 years).

Banking and Finance
Information Technology
Automotive
Transportation

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (17.5 years), Operations (6 years), Quality Assurance (2 years), and Business Intelligence (1 year).

Information Technology
Operations
Quality Assurance
Business Intelligence

Skills

Services / Areas Of Expertise

  • Databases: Administration, Design, Tuning, Application Development For Oracle Databases
  • Operating Systems: Unix, Solaris, Linux, Windows
  • Job Scheduling: Ca Autosys, Oracle Scheduler (Job Chains), Tws/z, Tws/d
  • Automation: Creating Processes To Streamline Operational Tasks
  • Migration: System Migrations, Software Migration, Database Migration And Software Deployment For Large Volumes (Concept And Implementation)
  • Visualization: Automated Graphical Presentation Of Technical Data
  • Programming: C, Unix Shell Scripts, Perl, Pl/sql, Others
  • Programming Of Technical-scientific Algorithms
  • Documentation Of Completed Work
  • Training: Conducting Training And Workshops For Operating Systems, Database Systems And Programming Languages; Creating Training Concepts And Materials

Languages (Programming And Scripting Languages)

  • Focus: Unix Shell Scripts (Bourne, Korn, Bash), Sql, Perl, C, Awk
  • Past: Various Assemblers, Various Basic Dialects, Fortran, Pascal, Modula, Lisp, Forth, Prolog, Simscript, Dbase/clipper, Rexx, Vba, C++, Java

Databases

  • Oracle (Focus): Administration Of All Versions From 5 To 21c
  • Oracle: Programming With Pl/sql
  • Oracle Tools: Rman, Data Pump, Advanced Queue, Scheduler (Job Chains), Odi, Oms, Sql*loader, Toad, Sql Developer
  • Past: Dbase Ii, Iii+, Iv, Clipper S87, 5.0
  • Informix: Administration Of All Versions From 4 To 7
  • Informix: Programming With 4gl, E/sql-c
  • Oracle Development: Designer, Discoverer, Forms, Reports
  • Oracle Tools: Grid Control
  • High Availability: Rac, Data Guard

Job Scheduling And Data Transfer

  • Focus: Ca Autosys (Versions 4.5 And 11, Jil)
  • Oracle Scheduler (Job Chains)
  • Connect:direct
  • Others: Uc4, Tws/z, Tws/d

Operating Systems / San

  • Focus: Unix, Solaris, Linux
  • Basic Knowledge: Z/os
  • Past: Novell Netware 2.x, 3.x, 4.x; Os/2, Lan Manager; Xenix, Dec Osf/1, Hp-ux, Sinix, Sco Unix
  • Veritas: Vxfs, Vxvm 3.x, 4.x
  • Ms-dos All Versions, Windows All Versions Up To 11

Software Distribution / Management

  • Past: Oma (Arosoft), Simm (Sysping), Ibm Tivoli

Selection Of Self-made Tools – Oracle

  • Program To Execute Any Sql Statements On Any Number Of Databases, Collect Results And Present Them In Report Form Including Full Logging; Used For Ad Hoc Queries And Creating Automated Operating State Histories Including Archiving In A Monitoring Database (Perl)
  • Graphical Display Of Privilege Relationships In The Oracle Database (System Privileges, Object Privileges, Roles, Schemas, Users) (Pl/sql, Graphviz)
  • Monitoring Statements For Debezium Including Graphical Presentation (Sql)

Selection Of Self-made Tools – Oracle Dbms Scheduler

  • Display Of Operating Status Of Job Chains (Text Output) (Pl/sql)
  • Display Of Operating Status Of Job Chains (Graphics) (Pl/sql, Graphviz)
  • Display Of Data Structures Of Job Chains (Pl/sql)
  • Procedures For Creating And Modifying Jobs In Job Chains (Pl/sql)

Selection Of Self-made Tools – Ca Autosys

  • Automatic Conversion Of Business Department Requirements From Excel To Jil (Ksh)
  • Process For Concurrent Multiple Execution Of Autosys Jobs (Emulating ‘Plans’ Of Other Scheduling Systems) (Jil, Bash)
  • Critical Path Analysis (Text Output) (Ksh)
  • Critical Path Analysis (Data Collection In Oracle Database) [Collaboration] (Ksh, Perl)
  • Critical Path Analysis (Graphical Presentation) [Collaboration] (Apex)
  • Query Of The Autosys Oracle Database For Statistical Purposes, Monitoring And Detecting Irregularities In Job Definitions (‘Anomaly Reports’) (Sql*plus, Bash, Excel)
  • Timeline Display Of All Scheduled Job Starts In Chronological Order (Ksh)
  • Automatic Execution Of Individual Jobs In Sequence Regardless Of Their Conditions (Ksh)
  • Various Tools For Semi-automated Editing Of Autosys Jobs Including Change Logging, E.g. Job Status Overview (Ksh, Bash)
  • Training Materials For Autosys (Word, Excel, Powerpoint)

Selection Of Self-made Tools – Migration Ca Autosys -> Ibm Tws/z

  • Conversion Of Autosys Boxes And Jobs Into Tws/z Applications And Operations From Jil To Batchad Format (Ksh, Perl)
  • Graphical Display Of Operating Status Of Tws/z Applications (Perl, Graphviz)

Selection Of Self-made Tools – Connect:direct

  • Conversion Of Connect:direct Log Files Into More Readable And Automatically Analyzable Tables; Filters For Versatile Use On The Command Line (Perl)

Selection Of Self-made Tools – Leasman

  • Program For Automatic Deployment Of Releases Including Monitoring (Perl, Bash)
  • Programs To Simplify And Accelerate Administrative Tasks In Leasman (Sap Interface, Version Status Displays Etc.) (Pl/sql)

Looking Beyond

  • Mathematics
  • Electronics
  • Printing Technology, Dtp
  • Cryptography
  • Forensics (File Systems)
  • Accessible Web Design
  • Simulations
  • 3d Visualization
  • Fuzzy Logic
  • Genetic Algorithms

Languages

German
Native
English
Advanced
French
Elementary
Latin
Elementary
Polish
Elementary

Education

High School Diploma (Abitur)

University of Hannover

Mathematics / Computer Science · Hanover, Germany

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Jürgen based?

Jürgen is based in Falkensee, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Jürgen speak?

Jürgen speaks the following languages: German (Native), English (Advanced), French (Elementary), Latin (Elementary), Polish (Elementary).

How many years of experience does Jürgen have?

Jürgen has at least 17 years of experience. During this time, Jürgen has worked in at least 12 different roles and for 6 different companies. The average length of individual experience is 1 year and 5 months. Note that Jürgen may not have shared all experience and actually has more experience.

What roles would Jürgen be best suited for?

Based on recent experience, Jürgen would be well-suited for roles such as: Database Administrator and Performance Tuning Specialist, Database Administrator and Operations Manager, Migration Consultant OS-Plus.

What is Jürgen's latest experience?

Jürgen's most recent position is Database Administrator and Performance Tuning Specialist at ALD Automotive Leasing Deutschland.

What companies has Jürgen worked for in recent years?

In recent years, Jürgen has worked for ALD Automotive Leasing Deutschland.

Which industries is Jürgen most experienced in?

Jürgen is most experienced in industries like Banking and Finance, Information Technology (IT), and Automotive. Jürgen also has some experience in Transportation and Logistics.

Which business areas is Jürgen most experienced in?

Jürgen is most experienced in business areas like Information Technology (IT), Operations, and Quality Assurance (QA). Jürgen also has some experience in Business Intelligence.

Which industries has Jürgen worked in recently?

Jürgen has recently worked in industries like Automotive.

Which business areas has Jürgen worked in recently?

Jürgen has recently worked in business areas like Information Technology (IT).

What is Jürgen's education?

Jürgen attended education in High School Diploma (Abitur).

What is the availability of Jürgen?

Jürgen is immediately available for suitable projects.

What is the rate of Jürgen?

Jürgen's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Jürgen?

To hire Jürgen, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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1200
900
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Market avg: 890-1050 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.