Alf Kern
Application Support E-Commerce Webshop
Experience
Oct 2023 - Present
1 year 10 monthsApplication Support E-Commerce Webshop
Netto Online Supermarkets
- Application support of the e-commerce presence of the Netto online supermarket chain [link]
- Webshop runs with PIM, ERP and Diva SW – Microsoft Dynamics Business Central
- ITIL Incident, Change and Problem Management
- Diva components are ERP, CRM, OMS, WMS and POS
- Receiving, processing and, if necessary, forwarding user help requests
- Error analysis and support with solution expertise and resolution finding
- Monitoring/orchestration of the individual systems
- Collaboration in daily operations with external service providers and development teams
- User management and second level support activities
- System logging/maintenance of external interfaces
- Application administration with Jira (ticket system) and Confluence (documentation) in QA and production environments
- Technology: Windows Server 2008, Linux Server, MS SQL Server
Mar 2023 - Aug 2023
6 monthsApplication Support and Operations Management
FITS (Finanz Informatik Technology Service), client: Landesbank Baden-Württemberg (LBBW)
- Ensuring trouble-free operation of applications in compliance with SLAs and internal and external regulatory requirements
- Operation and management of applications in the Financial Markets domain, e.g., Front Arena, Calypso and Kondor Plus
- Knowledge of deployment tools such as Ansible, Git
- Operation of server systems, RHEL 7/8 and Windows Server 2016
- Test operation and release testing support
- Customizing applications to customer requirements while adhering to concepts and standards
- Installation, configuration and continuous monitoring of applications on the systems, including documentation
- 2nd level support for incidents and troubleshooting
- Management, coordination, support and maintenance of highly complex applications
- Coordination and alignment with other departments such as development, database, network and storage
- Implementation of complex application changes, e.g., during release cycles, including independent coordination with the client and infrastructure teams
- Tools: ServiceNow, Jira, Confluence, ARS
May 2022 - Mar 2023
11 monthsIT Operations Application Manager
Deutsche Bahn Berlin
- Daily operational management of HR processes with PeopleSoft
- Operation on AWS cloud technology (via PAN client)
- Ensuring the operation of environments and applications
- Support for test, acceptance and production environments
- Monitoring, checking and testing of B2R requirement fulfillment
- Continuous updating of application documentation (wiki, work instructions)
- Incident analysis and bug fixing for applications, operating systems and infrastructure (incident and problem management)
- Adjustment of thresholds, monitoring concepts and work instructions
- Coordination of error analyses, documentation of results, communication with customers
- Installation and management of applications and application components
- Implementation of monitoring concepts
- Preparation and execution of technical acceptance tests
- Introduction and regular deployments/deliveries of applications or application releases
- Security management: handling vulnerabilities and their remediation
- Systems: Red Hat Linux, Oracle environment
- Main applications: PeopleSoft (AMS, HCM, PTR), WebLogic, JBoss
Apr 2021 - Aug 2022
1 year 5 monthsIT Operations Application Manager
DAK/IKK Health Insurers via IT Service Provider
- Implementation of the following projects for DAK and IKK Classic health insurers:
- Design, testing and go-live of logging read accesses via a highly available web application; integration with DAK and IKK live systems; SW: Red Hat Linux 8, Ansible, DB2 11.5, JBoss
- Replacement and go-live of a highly available archiving system; migration from mainframe to Red Hat Linux with deletion procedures and web-based firewall; SW: Apache, Red Hat Linux 8, JBoss, DB2 11.5
- Implementation of an audit-proof archiving system; data stored in Windows Server–based DB2 system with subsequent Unix-based archiving
- Daily operations with ITSM Incidents, Changes and Problems
- Tasks:
- Coordination of hardware change provision for test and production
- Software configuration, deployments and tests
- Transition to production and support
- Issue resolution in collaboration with developers and subject testers
- Documentation and training material creation
Aug 2019 - Jun 2021
1 year 11 monthsIT Operations Application Manager
Consors Finanz Bank – BNP Paribas
- Support of complex server applications and underlying platforms
- Support of test and production systems for credit lending software and satellite applications
- Management and maintenance of middleware applications
- Incident management: troubleshooting and service requests
- Problem management: classification and root cause analysis
- Software distribution, patches and updates
- Capacity and availability management for application infrastructure
- Collaboration with development and online banking support
- Tools & Technologies: Icinga2, Iris, Jira 9, Tomcat, JBoss, Red Hat 7, Jenkins
Apr 2019 - Aug 2019
5 monthsApplication and Middleware Management
IBM Germany for HypoVereinsbank/UniCredit Munich
- ITIL tasks: Incident, Change, Problem, User Requests
- Europe-wide application support
- Deployment and staging including security measures
- System integration and architecture design
- Market research and benchmarking of new technologies
- Tools: Apache Web Server, Oracle WebLogic, Red Hat JBoss, Splunk, Jira, SQL Developer
Jan 2019 - Mar 2019
3 monthsApplications and Change Management
Federal Employment Agency Nuremberg
- ITIL-compliant operations management
- Execution and coordination of changes
- Project support and consulting on IT processes
- Crisis management in case of incidents
- Tools: ARS, Red Hat Linux, Jira, Jenkins
May 2016 - Dec 2019
2 years 8 monthsApplication Support and Service Management
BG BAU, BGN, RCI Munich (Trade Association)
- Support of virtual Red Hat release environments
- DevOps activities: automation, test definitions and operations documentation
- Setup and operation of archiving and client-server applications
- Technologies: Red Hat Enterprise Linux, JBoss, Jenkins, Ansible
Apr 2015 - Apr 2016
1 year 1 monthProject/Release Management
BMW AG Munich
- Setup of an integration environment for applications
- Handling defects in ALM and collaboration with development teams
- Creation of technical documentation
May 2013 - Mar 2015
1 year 11 monthsApplication Support/Project Management
PAYBACK Mexico, Italy, USA
- Responsible for setup and rollout of test and production environments
- DevOps support through Scrum/Sprint meetings and user requests
- Automated rollouts and deployment of new releases
Jan 2009 - Apr 2013
3 years 4 monthsUnix Engineer/Project Management
Deutsche Bahn AG, Frankfurt
- Release management and change management for web/application servers
- Support for post-release tests, patch and deployment optimizations
Apr 2008 - Dec 2009
1 year 9 monthsUnix Administration and Project Management
BMW AG via T-Systems, Munich
- Infrastructure projects for BMW, Daimler and Shell
- Migration and optimization of IT systems and SAN storage management
Jul 2007 - Mar 2008
9 monthsWeb Administration/Unix Administration
Allianz AG, Munich
- Support and optimization of over 1,000 web server instances
- Integration and monitoring of new release levels
Mar 2006 - Jul 2007
1 year 5 monthsSystem Engineer and Application Support
BMW AG Munich
- Support of UNIX systems and web applications in test and production environments
Apr 2005 - Mar 2006
1 yearConsultant UNIX Operations
European Central Bank (ECB) Frankfurt am Main
- Smooth operation and migration of new applications into production environments
Dec 2004 - Mar 2005
4 monthsSystem Consultant
LUCENT Technologies Telecom
- Assumption of production operations and coordination of ITSM operations
Oct 2002 - Nov 2004
2 years 2 monthsWeb Infrastructure Engineer
BMW, Headquarters Munich
- Setup and optimization of Apache environments and BEA WebLogic instances
Nov 2001 - Sep 2002
11 monthsWeb Infrastructure Engineer
HypoVereinsbank/UniCredit, Munich
- Setup and operation of the Solaris environment for corporate web presences
Jan 2001 - Oct 2001
10 monthsUnix Administration
SUN Microsystems, Germany HQ
- Support of production-critical infrastructure and problem management for enterprise systems
Sep 1994 - Jan 2001
6 years 5 monthsUnix Administration
COMMERZBANK, Investment Banking
- Setup and daily support of investment banking IT infrastructures
Languages
English
Advanced
German
Advanced
French
Elementary
Education
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Studies · Computer Science · Germany
Certifications & licenses
ITIL V3
Prince2 Practitioner Level
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