Jürgen Bargmann
Database Administrator and Performance Tuning Specialist
Experience
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
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
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
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
Consultant for Continuation/Extension
DB Systel (Deutsche Bahn)
Continuation and extension of the project from 2008–2009 in the DB Systel domain
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
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
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
Catalog Server System Administrator
Conrad Hirschau
- Setup, installation and launch of the catalog server on Solaris 10
- Configuration of the storage systems
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
Database Administrator
Finanz IT, Berlin
- Migration of large databases (TB scale) from Oracle 8i to 9i
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).
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).
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
Education
High School Diploma (Abitur)
University of Hannover
Mathematics / Computer Science · Hanover, Germany
Profile
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