SBAM (Sendungsbasiertes Auftragsmanagement System) transformation project from proprietary & host-based applications to a new state of the art technology stack using Java, PostgreSQL DB, Kafka Messaging, MinIO S3 Object Storage, Redhat OpenShift Platform, KeyCloak SSO & GUI based on Angular Material.
Multi Channel Engine (MCE) - Robust REST API layer positioned between all frontend clients and backend IT & NT stacks. Java application deployed using Oracle Traffic Director and Coherence Caching on Oracle WebLogic.
Key projects:
Contract generation services for external third party partners (Media Saturn, Check24 etc.)
FMC - Introduction of new services for customer offerings around FTTH products
CoRE - Customer service improvements for tablet-based sales tools used at POS
Introduction of online contract termination services
Requirements workshops
Development/analysis using SCRUM (Jira/Confluence)
User story documentation
Design document creation
E2E solution design participation
Process modeling (PlantUML, Camunda BPMN Modeler & Gliffy)
Interface modeling with XMLSpy & IntelliJ
Application architecture design
Interface testing with SOAPUI
Design & migration document reviews
Interface description reviews
Data modeling (ERM)
Defect tracking (Jira)
UAT
Sprint planning, backlog grooming, estimation meetings, retrospectives
DISI ADM Analysis Pool for TEF frontend portals, apps, shared services & IDP:
Key projects included CoMS Micro Frontend implementation, EECC legal requirements, enhanced content provider information on bills, extended pricing information for contract renewals & migrations, NOVUM integration of global customer selfcare mobile app.
Responsibilities included requirements engineering, specification development with UML/BPMN models and Balsamiq wireframes, participation in analysis workshops and impact assessments.
Multi Channel Enabler (MCE) - REST API layer between frontend clients and backend systems, built in Java with Oracle Traffic Director and Coherence Caching on WebLogic.
Net Promoter Score (NPS) and Outbound Scheduling tools for call centers:
Subscription Server - Central subscription management service for Deutsche Telekom's pay-per-period offerings for prepaid, postpaid and service provider customers. International project with stakeholders from UK, Czech Republic, Netherlands and Austria.
Prepaid IT CRM System (PEPS):
Micropayment System:
UNIX, Network & Security:
Built and led development/test support team for UNIX, Oracle & middleware:
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