Member of the Product Management and Product Owner team for the Private Cloud Platform

Development of a private cloud platform for the German Armed Forces.

• Member of the product management and product owner team for the Private Cloud Platform
• Development of use cases for cloud products
• Organizing and conducting use case workshops
• Defining use cases with product owners
• Requirements engineering
• Enhancing the roadmap and goal chain
• Measuring and improving the platform's usability
• Defining a methodology to determine the developer experience
• Developing test scenarios, training testers and observers
• Organizing and conducting test sessions
• Processing results and deriving actions
• Presenting findings and results to stakeholders
• Planning implementation of improvements with product owners
• Facilitating the weekly Product Owner meeting
• Introducing and coordinating key topics for quarterly planning
• Technological environment: VMware, Kubernetes, Helm Charts, Kyverno, ArgoCD, Crossplane, HashiCorp Vault, Linkerd, PostgreSQL, Elasticsearch, Grafana, MinIO, Artifactory, Python, Nexus, Sysdig, Active Directory, GitLab, Git, Docker, Jira, Confluence, Scrum, Kanban, DevOps, ITIL, CI/CD, IoT

The BiPRO services (web service interface between brokers and insurers) needed a technology update and step-by-step migration into the local Kubernetes cloud as microservices. As part of further development, their operation also had to be ensured. This included advising projects to achieve production readiness, including monitoring, joint incident handling, as well as the design and implementation of optimization measures.

• Coordinating between development and operations of BiPRO web services regarding new features, go-lives, changes and incidents
• Implementing continuous improvement in line with DevOps and agile principles; improving collaboration between operations and development
• Defining and implementing requirements for maintainability and operations of applications; optimizing operational processes (e.g., monitoring, alert mechanisms, etc.) towards observability
• Documenting and presenting results to the project team and stakeholders, including recommendations for further actions
• Product management, building collaboration with other Scrum teams
• Release planning, executing deployments, preparing for technical and functional acceptance, automating tests, microservices deployment pipelines, extending documentation for operations
• Documenting, planning and technically preparing the migration of 3 BiPRO services
• Technologies: BiPRO: Security Token Service (STS), Standards 420 (non-TAA) and 430 (TAA); JBoss Wildfly, Softproject X4, Maven, Ant, PostgreSQL, Jenkins, Microservices, Java, Spring Boot, Private Cloud, Kubernetes, Spinnaker, Rancher, Elasticsearch, Kibana, Instana, WSDL, REST, SOAPUI / ReadyAPI, Postman, MinIO (S3 compatible), GitHub, Docker, CA Harvest, ITSM, HP Service Manager, Jira, Confluence, Scrum

Project Management for migration and extension of Enterprise Service Bus and JEE web applications.

• Agile project management
• Creating and coordinating project proposals with stakeholders, managing multiple parallel projects
• Planning and coordination of scope, effort, schedule, budget, quality assurance
• Requirements and dependency management
• Managing an Indian offshore software vendor and internal teams
• Introducing agile practices from the Scrum framework such as Daily Scrum, burn-down charts, retrospectives, product backlog and sprint backlog where organizationally possible
• Coordinating new architecture and requirements with the offshore team and internal architects
• Coordinating onsite testing activities and acceptance
• Project control and tracking of deliverables, project reporting, stakeholder management and risk management
• Project language: English
• Skills: SOA, Enterprise Service Bus (ESB), Java, Web services, WSDL, REST, JSON, XML, XSD, SOAP, JBoss Fuse, JBoss EAP, VMware, CA Harvest, Atlassian Jira, Atlassian Confluence, MS Project, Scrum, Acellere Gamma, Jenkins, Git, GitLab, Scrum

Lufthansa SOA and Middleware Platform.

• Initial takeover project and knowledge transfer from previous vendor
• Define, implement and establish processes with teams in Bangalore, India and Nice, France and the customer
• Acting as first point of contact for functional issues and change requests between Lufthansa Group and Amadeus
• Analyzed feasibility, costs and benefits, proposed specific solutions including sizing and implementation plan, evaluated solution architecture, ensured quality and consistency of deliverables.
• Project management for LH eJournal integration project
• Project management for Concur Travel Management (SAP) integration project
• Project planning with offshore and local teams
• Coordination of projects between Lufthansa, Amadeus and other third parties
• Solution and delivery management
• Supported the launch of the Lufthansa OpenAPI project, Lufthansa's first externally accessible API platform for third-party developers
• Facilitating the required architecture and security measures for OpenAPI
• OpenAPI release planning
• Project language: English
• Technology: Mashery API Management, SOA, Synchronous, Asynchronous, Batch, Tibco BusinessWorks, Tibco EMS, Enterprise Service Bus, Aurea Actional, OpenAPI, Java, Web services, WSDL, REST, XML, XSD, Axis2, CXF, SOAP, Ruby on Rails, git, Maven, Oracle WLS, Sharepoint, SOAP UI, C++

Product development: myIDTravel booking system for airline employees.

• Improving product quality through various organizational and tool-based measures
• Leading the initiative to introduce a continuous integration system to ensure stable builds, software code quality assurance, and the introduction of PMD and FindBugs
• Introducing Maven as the build tool instead of Ant, replacing CVS with Subversion
• Introducing a wiki as a knowledge base to support external software developers, developing and providing example implementations, architectural documentation
• Mentoring junior developers, presenting and training the development team in using new tools
• Advising the program manager on architectural issues
• Specifying external interfaces for single sign-on and external reservation systems: WSDL, OTA, .NET compatibility testing, WS-Security, WS-Policy, problem analysis, interface implementation
• Preparing deployment and configuration for production
• Organizing integration projects for system rollout at customer sites
• Supporting user acceptance tests, helping customers implement and test interfaces
• Load testing and performance analysis
• Skills: Java, Enterprise Service Bus, XML, XSD, Web services, OTA XML, Axis2, SOAP, Apache ServiceMix, Tomcat, mySQL, Ruby, Selenium, JUnit, RSpec, Subversion, git, Maven, IntelliJ IDEA, JIRA, Jenkins/Hudson, JMeter

Development of a passenger management system as a product for the airline market to replace existing host-based legacy systems.

• Member of the software architecture team
• Direct Booking Module Distribution Channel Manager (XML Rules Engine as Web Service), FrontSales (Swing GUI), Internet Booking Engine (Struts), Falcon Client Access (XML Middleware)
• Requirements management (functional, non-functional)
• Consulting on technical feasibility of concepts, development of test concepts (functional, non-functional)
• Quality assurance of externally developed or purchased software components by offshore service providers (documentation, software tests, source code review)
• Technical contact for external subcontractors in Dublin (Ireland), Budapest (Hungary), Minsk (Belarus) and Bangalore (India)
• Test automation (e.g. Continuous Build Process, Scripting)
• Error analysis and documentation
• Project language: English
• Technology: Java, J2EE, EJB, XML, XSD, XSLT, Webservices, SOAP, BEA Weblogic 9, Tomcat, Oracle RAC, mySQL, Ruby, JUnit, CVS, IntelliJ IDEA, Enterprise Architect, UML, AccuRev, JIRA, TeamTrack, Bugzilla, CruiseControl

Load testing for Enterprise Application Integration (EAI) components.

• Investigation of the performance of developed EAI software components (stateless session beans) under full load in individual and combined tests.
• Evaluation of a third-party Java software component for its suitability in a server environment.
• Development of a sample application using the component as a proof of concept for using the component in the BEA Weblogic EJB container.
• Technical project coordination
• Concepts for setting up load tests (hardware & software)
• Definition of stress test cases, load tests with JMeter as a load generator, development of a JMeter plugin for generating load for EJBs, load test scripts
• Development of load generators and sinks based on existing EJBs
• Investigation of memory leaks, response times, CPU usage, memory requirements
• Evaluation of results, documentation, investigation reports, and presentation of findings
• Technologies: BEA Weblogic 8.1, J2EE, EJB, CORBA, JMeter, XML, JUnit, CVS, Eclipse, IntelliJ IDEA, GNUPlot