Sven Koebnick - Linux Administrator for Web Operations

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Glashütten, Germany

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Experience

Sep 2024 - Present

2 years 1 month

Karlsruhe, Germany

Generalist System Administrator

Enbw

Automation of the (Linux-based) web landscape maintenance.
Use of SALT, SuseManager, Wildfly, scripting and Kubernetes.
DevOps tasks and use of Jira.
Management of "special" applications as well as creating and helping with concepts.
Focus on security, maintainability, integration and tooling/integration.

May 2023 - Apr 2024

1 year

Eschborn, Germany

Teamlead

ITZ Bund

Coordination and leadership of the DevOps team for the "ZEUS2" process.
Switching the workflow to an agile way of working.
Planning and setting up the Jira project for the overall process (migration of several Jira projects into one shared project).
Creating presentations and reporting.
Ticket management.
Technologies and products: ZEUS, PowerPoint, Office, Jira, Confluence, Jenkins, ITSM, UFT, Zephyrscale, Java, Camunda.

Jan 2021 - Apr 2023

2 years 4 months

Germany

Central Engineer

Deutsche Bank

Project "Unity": merging the IT of Postbank and Deutsche Bank.
Support of the SEPA application (central bulk processing of over 50 million payment transactions per day).
Analysis and implementation of the requirements for integrating Postbank processes.
Leading two teams as part of application support.
Technologies: RedHat Linux, Java, Ansible, UFT, Shell, Git, JFrog, SQL, PL/SQL, Oracle, Office, Jira, Confluence.

Oct 2019 - Oct 2020

1 year 1 month

Germany

Application Migration Specialist

VTB Bank

Application migration to a disaster-ready platform for 12 security-relevant applications, including eBanking.
Conducting requirements and resource analysis.
Architecture planning and feasibility checks.
Performing security checks.
Full implementation from server ordering through installation, configuration, data transfer and migration to testing.
Technologies: Windows 2012/2016, RHEL, scripting, Sybase, MSSql, Oracle, AAA token, Tomcat, DFS Replication.

Oct 2018 - Sep 2019

1 year

Germany

Subproject Lead

Helaba

System responsibility for Doka 5.06 and subproject lead for the migration to Doka NG.
Provisioning, development and 3rd level support.
Single Point of Contact (SPOC) between the bank and the vendor (DOS/Surecomp).
Operational change management as well as provisioning, operations and support.
Application support: testing, configuration, deployment and acceptance.
Technologies: HP-QC/HP-ALM, Office, Doka, TradeConnect, Apache, Tomcat (with proprietary SSO module).
Skills: test execution, deployment automation, migration, data/error analysis, ITIL (CM, IM, PM).

May 2016 - Dec 2018

2 years 8 months

Germany

Functional Analyst

Commerzbank

Project "Digital Strategy" as well as application operations and operational change management.
Support for the product "Openforms": automation, script-based and manual error analysis.
Setup of monitoring and operation of the portal backend for personal loans and account management.
Technologies: RHEL (Linux), shell scripting, Perl, Openforms, automated log analysis, MS Office, Subversion, JBoss, Tomcat, Tivoli.
Methods: ITIL/HPSC (CM, IM, PM), deployment (EAR/WAR), ticket tracking, SPOC for vendor.

Sep 2015 - Mar 2016

7 months

Germany

Technical Lead ASM Manager

Deutsche Bank

Technical multi-project lead for onboarding the application landscape into SIEM/ASM.
Coordination of the technical staff in the ASM area and the application owners until go-live in Application Security Monitoring.
Requirement and technology analysis of the applications.
Configuration and deployment of the SIEM connectors.
Error analysis and support for the application owners in operational change management.
Technologies: MS Access, MS Office, HP ArcSight Console, HP FlexConnector/SmartConnector, Tibco, LogLogic, Lotus Notes, WebEx, Eclipse, C++, Java, Tomcat, JBoss, PHP, Python, RegEx tools.
Operating systems: Windows, SLES, RHEL, AIX, Solaris.

Aug 2015 - Aug 2015

1 month

Technical Consultant

Customer on request

Technical support for the automation and operation of a web landscape in the B2B area of a large retail chain.

Jan 2011 - Jun 2015

4 years 6 months

Frankfurt, Germany

Team Lead System Engineering

Commerzbank

Technical project lead and support for the Doka5 system (Surecomp/DOS) used for handling documentary foreign trade business.
Acting head of the "System Engineering" sub-area with 6 employees.
Support for the Windows-based development environment (2000/2003/2008) as well as AIX-based runtime and pre-live environments.
Automation of versioning, daily build, and source exchange with the vendor.
Connection of around 60 external systems via WebsphereMQ, Connect:Direct, HTTPS, SFTP, Oracle DBLink, IMAP, SMTP, and Tivoli in the HACMP cluster.
Interface integration through script development (KSH, Perl, AWK) as well as implementation of services in C and Java (Kerberos authentication, fax/mail).
Carrying out memory and performance analyses as well as 3rd-level support and troubleshooting.
Responsibility for technology selection, effort estimates, requirement analysis, and documentation.
Technologies: AIX, Windows, Cygwin, VMware, Oracle, SQL, PLSQL, Java, Tomcat, JBoss, Linux, ITIL via HPSC.

Sep 2009 - Dec 2010

1 year 4 months

Darmstadt, Germany

System Architecture Specialist

Telekom

Support with the automatic provisioning of development and test systems.
Maintenance of network specifications and further development of the system architecture.
Application installation and configuration in the MSTV environment, EPG, and IPTV.
Order management for the operation of test and production systems (routing, firewall approvals, access security).
Technologies: Linux (SLES), Solaris, Remedy ARS, Oracle, MySQL, Eclipse, shell scripting, Python, WSSE, Tomcat, Apache, JBoss, Java, WSDL, SSO, change management.

May 2009 - Aug 2009

4 months

Eschborn, Germany

Software Developer

Arcor/Vodafone

Development of a system for web-based, fully automated documentation of web applications.
Collection of information from configuration files, routing paths, database access, and deployment targets.
Implementation of the visualization using PHP, HTML, Javascript, and Ajax.
Development of backend processes for automatic updates of the documentation when the system changes.
Technologies: Linux (SLES), Solaris, Windows XP, Kompozer, Eclipse, MySQL, SQL, PHPMyAdmin, shell script (bash), AWK.

Oct 2008 - Mar 2009

6 months

Darmstadt, Germany

Deployment Engineer

Telekom

Support, automation, and deployment of around 200 B2B applications in a BPEL environment (Oracle SOA Suite).
Deployment of packages to the Enterprise Service Bus under IBM WebSphere AS.
Package building and configuration in ClearCase.
Development of scripts for plausibility checks and error reduction in the deployment process.
Carrying out process optimizations and technical support during troubleshooting.
Technologies: SLES, Solaris, MySQL, Oracle DB, Oracle SOA/BPEL, Tomcat, Java, Apache, Bash scripting, ANT, XML.

Aug 2007 - Aug 2008

1 year 1 month

Germany

System Administrator

EnBW

Operation, maintenance, and further development of the internet environment based on SLES.
Administration of web server and MySQL farms (SolarisCluster) under Apache and Tomcat.
Configuration of hardware load balancers, XML gateways (Barracuda), and firewalls.
Development of synchronization automation and deployment subtasks.
Support for the CMS (NPS) and monitoring of services with Nagios (including scripting for intrusion detection).
Carrying out low-level debugging with Wireshark.
Technologies: SLES, Solaris, MySQL, Oracle, Tomcat, Java, Apache, Bash scripting, PHP, Perl, XML, TCL.

Jan 2007 - Jul 2007

7 months

Germany

System Engineer

Deutsche Bank/IBM

Installation, configuration, documentation, and deployment of Linux/Apache/Tomcat systems.
Rebuilding the entire web server farm as part of a data center takeover.
Installation of various application servers such as fax and Informatica systems.
Technologies: SLES, AIX, Oracle, Tomcat, Java, Apache, Bash scripting.

Feb 2006 - Dec 2006

11 months

Germany

Troubleshooting Specialist

KFW Bank

Administration, configuration, and troubleshooting for an internet frontend for account management.
Setup of around 20 servers (Oracle DB, JSP server pools, PIN-TAN authentication services).
Development of a flexible, configuration-based software distribution system in Bash/AWK.
Support for application development in troubleshooting and creation of audit-compliant documentation.
Technologies: SLES, AIX, Oracle, Tomcat, Java, Apache, Bash scripting, Yast, ANT.

Jan 2006 - Jan 2006

1 month

Germany

Consultant

Softwareentwicklung

Conducted a feasibility study on the suitability of TestComplete 4.0 for UI testing of a CAD software.
Analyzed the goals and recommended a proprietary solution with automation support.
Technologies: TestComplete 4.0, Win2000/XP, CAD/CAM.

May 2003 - Nov 2005

2 years 7 months

Germany

Technical Lead Test Lab

Agilent Technologies

Led the stability and performance test lab for gas and liquid chromatographs.
Tested the control software for major chemical and pharmaceutical companies in compliance with FDA 21 Part 11.
Designed and automated software distribution (Ghost, CCM) for test labs and production.
Statistical analysis of log files using SQL, shell, and AWK scripts for quality assurance.
Coordinated bug fixes with the development department and provided technical support for the engineering cluster (VMWare).
Technologies: Windows NT/2000/XP, Oracle, TestComplete, Rational Robot, CCM, Linux, C/C++, Java, DelphiScript.

May 2002 - Apr 2003

1 year

Germany

Web Administration Team Lead

Aventis

Administration and maintenance of the global intranet, extranet, and internet environment for about 60,000 users.
Led an international 5-person team (Frankfurt, Japan, New York).
Designed and implemented an interface for internal provisioning of web services (out-of-the-box services).
Planned hardware scaling, security features, and high-availability solutions.
Technologies: Windows NT/2000, IIS, Microsoft SiteServer, SharePoint Portal, ApplicationCenter, MS SQL, Active Directory.

Jan 2002 - Present

24 years 9 months

Germany

Project Lead & Software Developer

Internet

Led and programmed an after-hours software development project for a gaming platform.
Developed the server engine in C++ and SQL on a Linux platform.
Programmed the client in Java (V2).
Technologies: Sun SDK, Forte4Java, MS Visual C++, Linux, MySQL, Toad.

Jan 2002 - May 2002

5 months

Germany

IT Systems Administrator

Mittelständische Unternehmen

End-to-end support of IT systems for various medium-sized and small companies.
Administration of server and client systems under Windows, Linux, HP-UX, and Novell.
Technologies: Windows (3.11 to XP), Linux, HPUX, Novell, Squid, MSSQL, MySQL, Informix, Tomcat, Cocoon, C++, Java, VB.

Jan 2001 - Jun 2001

6 months

Germany

Software Developer Data Warehousing

BKK Bundesverband

Software development for the data warehousing of a health insurance association.
Preprocessing, checking, and reformatting data from various sources (doctors, hospitals) for database import.
Development of filters for plain text and EDI data with a focus on syntactic and semantic integrity.
Technologies: C/C++, SQL, NCR Unix, Teradata, Shell script, AWK.

Jan 2000 - Nov 2001

1 year 11 months

Germany

Production Optimizer

Versicherungsmakler

Analysis and stabilization of a company software system based on HPUX and Oracle.
Development of a monitoring system for technical and business monitoring of business processes.
Creation of a tool for automated restart and reporting of crashed services.
Implementation of XML-based case management and automated data exchange via PGP (GDV data).
Creation of management information systems for displaying insurance sums and processing times.
Technologies: HPUX, NT, Oracle, Shell script, AWK, Perl, HTML, XML, Cocoon, Java, JavaScript, TCL/TK.

Jun 1999 - Dec 1999

7 months

Germany

System Support & Monitoring Specialist

Commerzbank

Sun E10K process monitoring and support of end-of-day jobs in the trading area.
Creation of monitoring tools for tracking critical application runs.
Carrying out reporting, alerting, and documentation tasks using Perl software.
Technologies: Solaris, C, Shell script, TCL/TK, Perl.

Jun 1999 - Jun 1999

1 month

Germany

Network Technician

Deutsche Bank

Setup of a dedicated NT network for the Telekom capital increase.
Installation and support of about 50 NT clients and 4 NT cluster servers during the trading phase.
Technologies: Windows NT, trading software.

Feb 1998 - May 1999

1 year 4 months

Germany

Network and System Administrator

Lufthansa Systems

Network conversion from a 16Mb Token Ring to a fully switched network for about 400 users.
Support of Novell (3.12, 4.11) and Windows NT servers.
Field service and user support.
Help with cabling planning and administrative tasks.
Technologies: Novell, NT, Win95, Win98.

Jul 1997 - Aug 1997

2 months

Pfinztal, Germany

Systems Technician

Stadtverwaltung Pfinztal

Upgrade of the IT infrastructure from HP3000 terminals to Windows NT servers.
Setup of a 100Mb switched Ethernet network for about 60 workstations.
Planning and implementation of backup solutions, user permissions, and remote maintenance concepts.
Technologies: HP3000, Windows NT.

Jun 1997 - Jun 1997

1 month

Pfinztal, Germany

Network Planner

Schule Pfinztal

Planning and implementation of a network expansion for a grammar school (IT rooms, office, teachers' room).
Implementation of a Linux-based internet access concept with firewalling.
Implementation of a Windows NT domain concept to protect sensitive data.
Technologies: Novell 3.11, Win 3.10, NT, Linux.

Mar 1997 - Apr 1997

2 months

Germany

Concept Developer

Libri

Design of a stand-alone information kiosk with touchscreen for a European branch network.
Solution for data delivery via CD for end customers.
Technologies: standard PC hardware and software.

Jan 1994 - Dec 1997

4 years

Germany

Network Technician

EDV-Großhandel

Software development for mass testing and installation of PCs.
Quality assurance in production (PC assembly).
Design and on-site setup of small networks.
Installation and maintenance of Novell, Linux, and NT servers.

Jan 1994 - Dec 1994

1 year

Sales Representative

Vertriebstätigkeiten

Carrying out general sales activities.

Jan 1992 - Dec 1994

3 years

PC Service Technician

Service Technician

Service and maintenance of PCs and peripheral devices.

Jan 1991 - Oct 1991

10 months

Mainz, Germany

Software Developer

Physiological Institute, University of Mainz

Solo project: development of image processing software for cancer cell research.
Creation of a menu-driven software for transferring image data from a frozen-section microscope via RS/424.
Implementation of statistical analysis and post-processing functions (sharpening, contrast enhancement, 3D display).
Development on IBM RT-PC (RISC) under AIX.
Technologies: personal graPhIGS, C, Pascal.

Feb 1990 - Feb 1990

1 month

Mainz, Germany

Software Developer

Physics Institute, University of Mainz

Development of a graphical X11 frontend for a quantum spin simulation program.
Conversion of textual 5-dimensional matrices into graphical representations.
Technologies: X-Windows, IBM RT-PC (6150), AIX, C.

Jan 1988 - Dec 1992

5 years

Wiesbaden, Germany

AIX System Engineer

IBM

Worked as an AIX System Engineer.

Jul 1986 - Jan 1989

2 years 7 months

Germany

Software Porting Specialist

Research institutes/universities

Carried out various software portings from HP-UX and Solaris to RT-PC and RS/6000.
Worked with Cobol, Fortran, C and Pascal.
Technologies: HP-UX, Solaris, Cobol, Fortran, C, Pascal.

Industry experience

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

Experienced in Information Technology, Banking and Finance, Biotechnology, Energy, Manufacturing, and Education.

Information Technology

Banking and Finance

Biotechnology

Energy

Manufacturing

Education

Business area experience

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

Experienced in Information Technology, Product Development, Project Management, Operations, Quality Assurance, and Customer Service.

Information Technology

Product Development

Project Management

Operations

Quality Assurance

Customer Service

Skills

Unix
Linux
Web Server
Apache
Tomcat
Databases
Scripting
Administration
Automation
Shell
Generalist
Development
C++
Java
Application Support
Team Leadership

Languages

German

Native

English

Advanced

French

Elementary

Education

Oct 2007 - Present

Distance learning · Aerospace Engineering

Oct 1988 - Jun 1992

Studies · Computer Science · Darmstadt, Germany

University entrance qualification

Certifications & licenses

Search and rescue dog handler

Private pilot

Statistics

Experience

Total positions 35

Experience in Information Technology 36 y

Avg length 1 y 11 m

Longest experience 24 y 8 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Generalist System Administrator, Teamlead, Central Engineer

Main industries Information Technology, Banking and Finance, Biotechnology

Main business areas Information Technology, Product Development, Project Management

Qualifications

Certifications earned 2

Profile

Member since

August 2025

Last update

August 2026

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Frequently asked questions

Have questions? Find more information here.

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

Sven speaks the following languages: German (Native), English (Advanced), French (Elementary).

Sven has at least 40 years of experience. During this time, Sven has worked in at least 32 different roles and for 30 different companies. The average length of individual experience is 1 year and 2 months. Note that Sven may not have shared all experience and actually has more experience.

Based on recent experience, Sven would be well-suited for roles such as: Generalist System Administrator, Teamlead, Central Engineer.

Sven's most recent position is Generalist System Administrator at Enbw.

In recent years, Sven has worked for Enbw, ITZ Bund, Deutsche Bank, and Internet.

Sven is most experienced in industries like Information Technology, Banking and Finance, and Biotechnology. Sven also has some experience in Energy, Manufacturing, and Education.

Sven is most experienced in business areas like Information Technology, Product Development, and Project Management. Sven also has some experience in Operations, Quality Assurance, and Customer Service.

Sven has recently worked in industries like Information Technology, Banking and Finance, and Energy.

Sven has recently worked in business areas like Information Technology, Project Management, and Product Development.

Sven attended education in Aerospace Engineering.

Sven has 2 certificates. These include: Search and rescue dog handler and Private pilot.

The availability of Sven needs to be confirmed.

Daily rate distribution

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Daily rate avg. 1063 €

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Median rate 932 €

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.