Christian Wonneberger - Project Manager, Interim...

Q: Where is Christian based?

Christian is based in Düsseldorf, Germany .

Q: What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Intermediate), Spanish (Elementary), French (Elementary) .

Q: How many years of experience does Christian have?

Christian has at least 24 years of experience. During this time, Christian has worked in at least 8 different roles and for 6 different companies . The average length of individual experience is 3 years . Note that Christian may not have shared all experience and actually has more experience.

Q: What is Christian's latest experience?

Christian's most recent position is Software Engineer, cross-platform Application Manager at International major bank .

Q: What companies has Christian worked for in recent years?

In recent years, Christian has worked for International major bank and DekaBank .

Q: Which industries is Christian most experienced in?

Christian is most experienced in industries like Banking and Finance and Information Technology .

Q: Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Information Technology , Project Management , and Operations . Christian also has some experience in Business Intelligence .

Q: Which industries has Christian worked in recently?

Christian has recently worked in industries like Banking and Finance and Information Technology .

Q: Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology , Operations , and Project Management .

Recommended expert

Düsseldorf, Germany

Experience

Jan 2022 - Present

4 years 3 months

Düsseldorf, Germany

Hybrid

Software Engineer, cross-platform Application Manager

International major bank

Creating interfaces between the legacy platform and the new container solution
Coordinating required contributions from line units
Moderating regular status meetings with the software vendor
Minimally invasive conversion of TWS scheduling from the old to the new platform
Environment: IBM Mainframe, DB2, CICS, MQ, Red Hat Linux, Oracle, Kubernetes, Kafka, Helm, GitLab, Jenkins

Jan 2021 - Dec 2025

5 years

Software Engineer, Application Manager in a decentralized environment

DekaBank

Provisioning and operation of project and production infrastructure
Central point of contact "Supporter of the Day"
Creation of TWS/Maestro schedules with COMPOSER and CONMAN
Point of contact for DekaBank Provider Management for hardware configuration and procurement
Integration of supplier and receiver systems
Leveraging years of experience in GEOS application management covering architecture, integration, functionality, and operations
Configuration export and import
Interface configuration, sizing, performance, and robustness
CI/CD for configuration rollout of application systems
Source control & versioning in GitLab
Automation with Jenkins and CA Automic
JFrog repository
Creating documentation in the software development process for GEOS and Sectra, including architecture docs, authorization concept, production manual, and interface documentation
Release management: planning and rollout of software provider releases, identifying configuration adjustments for post-deployments
Planning and support of Oracle and Linux patching
Moderating regular status meetings with software vendors
Environment: GitLab, Jenkins, CA Automic, Octane, IBM MQ, Oracle, Red Hat EL, IBM Maestro, Geneos

Jan 2017 - Dec 2021

5 years

Subproject Lead IT Infrastructure, Subproject Lead Performance

Developing IT-related topics in RFP documents
Assisting with customer acquisition
Resource, budget, and schedule planning including stakeholder management
Technical leadership of assigned resources
Regular reporting and status updates
Coordinating project interests in the involved line units
Creating architecture documentation and platform descriptions
Coordinating activities for capacity planning and performance management
Upgrading the IBM mainframe platform from z11 series to z14
Responsible for achieving SLA-specific KPIs
Environment: IBM Mainframe, DB2, CICS, MQ, Red Hat Linux, IBM Connect:Direct, Citrix

Jan 2005 - Dec 2006

2 years

Program Manager IT

AGIS

Commercial and technical responsibility for a project portfolio of about 60 projects
Budget responsibility including investments
Selected project leadership: internet web/portal infrastructure, intranet web/portal infrastructure, international group directory based on Sun Directory Server
Development of a model for billing operating costs and designing the future shared platform (blueprint)
Fundamentals of capacity management and workload estimation for system and application operations
Benchmarking based on Compass KPIs and defining KPIs/SLA criteria

Jan 2003 - Dec 2005

3 years

IT Department Head

AGIS

Managing a department with 5 teams and about 70 employees
Operational responsibility for about 80 applications on over 500 servers
Selected project leadership: data warehouse for reporting and risk analysis based on IBM UDB/EEE on IBM pSeries with about 20 TB of storage
Compass© study in an open systems environment for about 2,000 employees and 4,500 servers
Design and TCO calculation of a UNIX server consolidation for over 2,500 UNIX servers based on the Compass© study

Jan 2000 - Dec 2002

3 years

Head of Client/Server and Application Services

Dresdner Bank

Shaping and supporting the spin-off process of the IT subsidiary with its own market presence
Set up and led a department with 4 product areas and about 60 employees
Responsible for budget and revenue of about EUR 12 million, including proposal preparation and negotiation
Operating about 60 applications on over 400 servers
Project management (selection): implementation and operation of the corporate customer portal (B2B), private customer portal (B2C) and office supplies dispatch (B2B)
Risk management data warehouse with over 20 TB of storage

Jan 1997 - Dec 1999

3 years

Head of Software Service, Head of Infrastructure & Investment Banking Projects

BB-DATA

Managed units with about 20 employees
Budget planning and cost allocation for the entire division
Project management (selection): preparations for the year 2000 changeover, replacement of the DTB trading system with Xetra
Set up and operated a disaster recovery site with about 50 workstations
Implemented the 6th amendment to the Banking Act

Jan 1992 - Dec 1996

5 years

System, Database and Network Administrator, Investment Banking Project Manager

Landesbank BW

Relocated and reinstalled the trading floor infrastructure for investment banking with about 160 trading positions and 20 backoffice workstations
Installed the trading floor infrastructure in Frankfurt with a Windows network
Introduced an access control and time tracking system based on Interflex 5060, including interface programming
Introduced and operated various exchange and trading applications

Industry Experience

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

Experienced in Banking and Finance and Information Technology.

Banking and Finance

Information Technology

Business Area Experience

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

Experienced in Information Technology, Project Management, Operations, and Business Intelligence.

Information Technology

Project Management

Operations

Business Intelligence

Summary

IT subproject/project leadership in system/application integration and performance.
Delivery management, budget responsibility, and stakeholder management for IT subprojects/projects with up to 7,500 person-days of implementation effort.
Experience in leading and implementing complex IT infrastructure projects on heterogeneous system platforms.
Application management in heterogeneous system environments.
Management and control of IT service providers.
Several years of direct leadership experience with multiple team leads and up to 70 employees.
Expertise in heterogeneous environments with IBM mainframe and decentralized application systems.
Strong technical understanding of distributed application landscapes, system integration, and operational processes.
Solid knowledge in database, transaction, and communication systems.
Experience as a link between project/line organization, IT service providers, and application development.
Decision-making skills, ability to execute, customer and solution orientation.
Strong service orientation and structured way of working.
Proactive and independent work style and creative thinking.
Analytical and conceptual skills, team player, and customer orientation.
Flexibility and willingness to quickly familiarize oneself with various complex tasks.

Skills

Mainframe: Ibm Zseries, Ibm Db2, Ibm Cics, Racf, Beta, Ibm Workload Scheduler Iws Aka. Tws Aka. Opc
Client / Server: Red Hat Rhel Linux, Windows Server, Vmware Esxi Virtualization, Citrix Xenapp, Vdi, Netscaler, Ibm Websphere Application Server, Jboss, Tomcat, Ibm App Connect Enterprise Aka Ibm Integration Bus Aka Ibm Websphere Message Broker, Ibm Db2 Luw, Oracle, Ms Sql Server, Sybase, Informix, Kubernetes, Helm, Kafka
Ci / Cd: Gitlab, Jenkins, Ca Artifactory
Networking / Messaging: Ibm Mq / Mqipt Internet Pass Through, Ibm Sterling Connect:direct, Secure Proxy, Secure Plus, Asg Outbound Enterprise, Firewall, Dmz, Internet Proxy

Languages

German

Native

English

Intermediate

Spanish

Elementary

French

Elementary

Education

Sep 1989 - Mar 1991

FH Pforzheim

Diploma in Business Administration · Business Informatics · Pforzheim, Germany · 2.5

Business administration specializing in business informatics

Certifications & licenses

ITIL Foundation V2

Statistics

Experience

Total positions 8

Experience in Banking and Finance 16 y

Avg length 3 y 8 m

Longest experience 4 y 11 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Software Engineer, cross-platform Application Manager, Software Engineer, Application Manager in a decentralized environment, Subproject Lead IT Infrastructure, Subproject Lead Performance

Main industries Banking and Finance, Information Technology

Main business areas Information Technology, Project Management, Operations

Qualifications

Highest degree Bachelor

Certifications earned 1

Profile

Created

March 2026

Last Update

March 2026

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Frequently asked questions

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

Where is Christian based?

Christian is based in Düsseldorf, Germany.

What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Intermediate), Spanish (Elementary), French (Elementary).

How many years of experience does Christian have?

Christian has at least 24 years of experience. During this time, Christian has worked in at least 8 different roles and for 6 different companies. The average length of individual experience is 3 years. Note that Christian may not have shared all experience and actually has more experience.

What roles would Christian be best suited for?

Based on recent experience, Christian would be well-suited for roles such as: Software Engineer, cross-platform Application Manager, Software Engineer, Application Manager in a decentralized environment, Subproject Lead IT Infrastructure, Subproject Lead Performance.

What is Christian's latest experience?

Christian's most recent position is Software Engineer, cross-platform Application Manager at International major bank.

What companies has Christian worked for in recent years?

In recent years, Christian has worked for International major bank and DekaBank.

Which industries is Christian most experienced in?

Christian is most experienced in industries like Banking and Finance and Information Technology.

Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Information Technology, Project Management, and Operations. Christian also has some experience in Business Intelligence.

Which industries has Christian worked in recently?

Christian has recently worked in industries like Banking and Finance and Information Technology.

Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology, Operations, and Project Management.

What is Christian's education?

Christian holds a Bachelor in Business Informatics from FH Pforzheim.

Does Christian have any certificates?

Christian has 1 certificate: ITIL Foundation V2.

What is the availability of Christian?

Christian will be available from October 2026.

What is the rate of Christian?

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