Skip to main content
Top expert badge
Recommended expert
Profile header background

Bahriye Eser-Freelance

Bahriye Eser - Freelance - profile avatar
Profile header overlay
Neresheim, Germany

Check rate

Experience

May 2025 - Jul 2025

Centris AG

Position summary
Industries
Information Technology
Business areas
Information Technology
  • Administration of 8-node RAC (19.26) database systems
  • Use of Golden Gate
  • Use of UC4
Feb 2021 - Dec 2024

Freelance

Logicalis

Position summary
Freelance at Logicalis
Industries
Information Technology
Business areas
Information Technology
Operations
  • Administration of databases in OCI on Exadata X8M
  • Use of Oracle Exadata Cloud 23.1.15
  • Operation with RAC and standby databases version 19.23
Jun 2020 - Dec 2024

Freelance

Hensoldt

Position summary
Freelance at Hensoldt
Industries
Aerospace and Defense
Business areas
Information Technology
  • Migration from Oracle 12 to 19
  • Patching, backups and restore with RMAN
  • Setup of cleanup scripts
  • Sole responsibility
Apr 2019 - Dec 2020

Freelance

M-Net München

Position summary
Freelance at M-Net München
Industries
Telecommunication
Business areas
Information Technology
  • Sole responsibility for the administration of databases on ODA (RAC)
Apr 2016 - Apr 2019

Senior System Engineer

Opitz Consulting Deutschland GmbH

Position summary
Senior System Engineer at Opitz Consulting Deutschland GmbH
Industries
Information Technology
Business areas
Information Technology
  • Administration of Oracle 11g, 12c, 19c, 20c databases on Linux with Veritas Cluster Software
  • Operation of standby databases in snapshot mode
  • Change and ticket management with Remedy
  • Migration from Oracle 11 to 12c and character set migrations with the DMU tool
  • Restore-recovery tests and database replication with Duplicate Database
  • Exports and imports
  • Applying PSU patches
  • Oracle troubleshooting
  • Administration of MySQL databases
Apr 2015 - Apr 2016

Senior Oracle Database Administrator

Baaderbank

Position summary
Senior Oracle Database Administrator at Baaderbank
Industries
Banking and Finance
Business areas
Information Technology
Operations
  • Administration of Oracle 11g databases on Sun Solaris
  • Administration of Oracle Clusterware and ASM
  • Operation of standby databases
  • Support for developers and application support teams
Feb 2009 - Mar 2015

Oracle Database Administrator

HP/EADS

Position summary
Oracle Database Administrator at HP/EADS
Industries
Aerospace and Defense
Business areas
Information Technology
  • Installation and administration of Oracle 8i, 9i, 10g and 11g databases on Reliant Unix, Sun Solaris, Linux, HP-UX and Windows
  • Database maintenance and parameter tuning
  • Monitoring and troubleshooting
  • Database migration and patching
  • PL/SQL programming
  • Consulting for planning and build teams
  • Support and consulting for application developers
  • SQL tracing and debugging
  • Performance tuning analysis with AWR, Statspack and SQL scripts
  • Backup integration with RMAN on Tivoli and DataProtector
  • Restore, recovery and duplication of databases
  • Installation of Grid Control 11g and Intelligent Agent
  • Shell scripting
  • Ticket and change management
  • Creation of documentation for Oracle and Tivoli users
  • Implementation and rollout of cleanup scripts and new Oracle features such as Block Change Tracking and Flashback
  • Administration of Tivoli Backup Servers and Tivoli Storage Management
  • Integration of clients into TSM instances
  • Review and troubleshooting of backups
Oct 2004 - Jan 2009

Oracle Database Administrator

T-Systems/Toll Collect

Position summary
Oracle Database Administrator at T-Systems/Toll Collect
Industries
Information Technology
Business areas
Information Technology
Operations
  • Installation and administration of Oracle 8i, 9i and 10g databases on Sun Solaris
  • Database maintenance and parameter tuning
  • Monitoring and troubleshooting
  • Database migration and patching
  • PL/SQL programming
  • SQL tracing and debugging as well as performance tuning
  • Shell scripting
  • Backup and recovery of databases
  • Responsible for database monitoring via Tivoli
  • Carrying out backups and recovery tests
  • Creating emergency scenarios for database failures
  • Installation and maintenance of Apache, Tomcat, JBoss, Oracle IAS and Quality Center
  • Setup of standby databases
  • 3rd level database hotline support (24/7)
  • Ticket and change management
Oct 2001 - Oct 2003

Database and Application Support

T-Systems Augsburg

Position summary
Database and Application Support at T-Systems Augsburg
Industries
Information Technology
Business areas
Business Intelligence
Information Technology
  • Installation and administration of standalone and OPS databases (Oracle 8i) on Sun Solaris
  • Database maintenance and parameter tuning
  • Monitoring and troubleshooting
  • PL/SQL programming
  • Support and consulting for Cognos and Informatica
  • Database export/import
  • SQL tracing and debugging
  • Performance tuning with Statspack and SQL scripts

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Aerospace and Defense, Telecommunication, and Banking and Finance.

Information Technology
Aerospace and Defense
Telecommunication
Banking and Finance
Profile match chart

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Operations, and Business Intelligence.

Information Technology
Operations
Business Intelligence
Profile match chart

Skills

  • Apache
  • Ias
  • Grid Control
  • Oracle Enterprise Manager
  • Tivoli Monitoring
  • Tivoli Backup
  • Incident And Change Management According To Itil
  • Toad
  • Sql*Plus
  • Spotlight
  • Statspack
  • Awr
  • Remedy
  • Service Center
  • Cognos
  • Informatica
  • Quality Center
  • Tsm Manager
  • Nagios
  • Dataprotector
  • Oracle Exp/Imp
  • Oracle Expdp/Impdp
  • Tkprof
  • Rman

Languages

German
Native
Turkish
Native
English
Advanced

Education

May 1992 - Dec 1999

Ludwig Maximilian University of Munich

Magister Artium, Culture and History of the Middle East · Culture and History of the Middle East · Munich, Germany

Nov 1989 - Oct 1991

Technical University of Munich

Mechanical Engineering, specialization: Aerospace Engineering · Munich, Germany

Oct 1985 - Jun 1989

Technical Gymnasium Heidenheim

University entrance qualification · Heidenheim, Germany

...and 3 more

Certifications & licenses

MySQL Administration

RAC 12c Administration

Tuning Databases 11g

PL/SQL Programming

Database 11g Release 2: New Features For Administration

IBM-TSM Workshop For Tivoli Server And Tivoli Client

Apache Administration: Linux as a Web Server

Web Hacking: Recognizing And Preventing Attacks Against Servers And Applications

Oracle Database 10g: RAC For Administrators

Oracle Database 10g: PL/SQL And Database Programming

Oracle 9i Database: Advanced Backup And Recovery With Rman

Oracle Database 10g: New Features For Administrators

Oracle Application Server 10g: Administration I

Cognos Certificate: Access Manager Series 7 - Administration

Oracle Application Server 10g: Administration II

Unix Basics

Statistics

Experience

Total positions 9
Experience in Information Technology 13.5 y
Avg length 2 y 11 m
Longest experience 6 y 1 m

Expertise

Recent roles Freelance, Senior System Engineer, Senior Oracle Database Administrator
Main industries Information Technology, Aerospace and Defense, Telecommunication
Main business areas Information Technology, Operations, Business Intelligence

Qualifications

Highest degree Doctorate
Certifications earned 17

Profile

Member since
Last update
Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Frequently asked questions

Have questions? Find more information here.

Bahriye is based in Neresheim, Germany.

Bahriye speaks the following languages: German (Native), Turkish (Native), English (Advanced).

Bahriye has at least 22 years of experience. During this time, Bahriye has worked in at least 5 different roles and for 9 different companies. The average length of individual experience is 3 years and 6 months. Note that Bahriye may not have shared all experience and actually has more experience.

Based on recent experience, Bahriye would be well-suited for roles such as: Freelance, Senior System Engineer, Senior Oracle Database Administrator.

In recent years, Bahriye has worked for Centris AG, Logicalis, and Hensoldt.

Bahriye is most experienced in industries like Information Technology, Aerospace and Defense, and Telecommunication. Bahriye also has some experience in Banking and Finance.

Bahriye is most experienced in business areas like Information Technology, Operations, and Business Intelligence.

Bahriye has recently worked in industries like Aerospace and Defense and Information Technology.

Bahriye has recently worked in business areas like Information Technology and Operations.

Bahriye holds a Doctorate from Dreißental School and a Master in Culture and History of the Middle East from Ludwig Maximilian University of Munich.

Bahriye has 17 certificates. Among them, these include: MySQL Administration, RAC 12c Administration, and Tuning Databases 11g.

The availability of Bahriye needs to be confirmed.

Daily rate distribution

0 2 4 6 8
<€800 €800-​960 €960-​1120 €1120+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Rate comparison chart
Daily rate avg. 975 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 960 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.