Full-Stack Developer

Developing the new digitization strategy

Using Camunda as a process engine to create new processing for batch and dialog jobs

Close collaboration with the business department to design and produce each process

Implementing screens to control manual interventions, e.g., when rejecting applications

Gradual migration of legacy code from IBM WebSphere to JBoss

Technologies and methods: Arquillian, Camunda, Hibernate, Jackson, Java/JEE, JBoss, Jersey, JSON, JUnit, REST, WebServices

Real-time coverage approval for a cost estimate in health insurance as part of the customer journey

Developed an app feature for taking a photo of the estimate and performing OCR-based quality and data checks

Connected to a mainframe for evaluation and push notification of the result to the app

Introduced OCR directly at capture for immediate feedback and discarding unusable images

Methods and technologies: Android, Angular, Cordova, DevOps, Docker, DropWizard, GIT, Gradle, Hibernate, HTML5, IntelliJ, Ionic, iOS, Jackson, Java/JEE, JavaScript, Jenkins, Jersey, JSON, JUnit, Kafka, MicroServices, MongoDB, OpenCV, OpenShift, PdfBox, REST, Scrum, Swagger, Tesseract, TypeScript, WebServices

Developed a web, Apple and Android app with geolocation service for scheduling and posting events

Implemented new menu navigation, chat, an innovative rating system, and analytics for business customers

Forked from million guides

Technologies: Android, Cordova, Eclipse, GIT, iOS, Java/JEE, JSON, JUnit, MicroServices, REST

New development of the LVdoktor document editor

Enabled departments to collaboratively develop complex dynamic PDF documents, immediate PDF testing

Overcame skeptical reactions in departments, successful rollout and extension requests in marketing and sales

Technologies: Ajax, Angular, Eclipse, GIT, Hibernate, HTML5, iText, Jackson, Java/JEE, JavaScript, Jenkins, Jetty, Jersey, JPA, jQuery, JSON, JUnit, LDAP, Maven, Microservices, Mockito, Postgres, REST, Scrum, Spring, SQL, Web Services

Implementation of the Fujitsu marketplace (SaaS)

JEE implementation with full logging of all activities and complex billing models for software vendors

Multiple awards, including from Computer Bild

Technologies: AOP, Ant, Ajax, Eclipse, EJB, GIT, GlassFish, Hibernate, Hibernate Search, Java/JEE, JAX-WS, Jenkins, JMS, jQuery, JPA, JSF, JUnit, Maven, Mockito, PayPal, Postgres, SaaS, Scrum, Spring, SQL, XML

Implementation of the Fujitsu Marketplace (SaaS)

JEE implementation with history tracking and billing models for software vendors

Award-winning platform

Technologies: Ant, AOP, Ajax, Eclipse, EJB, GIT, Glassfish, Hibernate, Hibernate-Search, Java/JEE, JaxWS, JMS, JPA, JSF, JUnit, Maven, Mockito, Paypal, Postgres, Scrum, Spring, XML

Implementation of the Fujitsu Marketplace (SaaS)

Tracking of all activities and complex billing models

Multiple awards

Technologies: Ant, Ajax, AOP, Eclipse, EJB, GIT, Glassfish, Hibernate, Hibernate-Search, JaxWS, Java/JEE, JMS, JPA, JSF, JUnit, Mockito, Paypal, Postgres, Scrum, Spring, XML

Completion of The Enterprise Software Solution (ESS): CRM and web shop in one

Features: online/offline, mobile Android app, mobile browser access, account data import, dunning, graphical reports, multi-language support, multi-tenancy, dynamic DB fields, import/export (Excel/vCard/PDF/RTF/PNG), MS Office/RSS/intranet integration

Technologies: Android, Ant, Apache WebServer, Batik, DB2, Derby, Eclipse, FOP, HTML5, Java/JEE, JDBC, jQuery, LDAP, MySQL, MS Access, MS SQL, Oracle, PdfBox, POI, RMI, RSS, Tomcat, XML, XSLT

Performance tuning of three production web portals

Reduced response times to just a few milliseconds

Technologies: Eclipse, Hibernate, Java/JEE, WebSphere

Developed a test environment for the new calculation engine

Excel-based intranet frontend converts documents into SOAP calls and runs regression tests

Technologies: Axis, Eclipse, Excel, Hibernate, Java/JEE, POI

Implementation of the IKR online loan application on IBM WebSphere with a Struts front end

Responsible for modules from functional discussion to implementation

Technologies: DB2, Eclipse, Java/JEE, JMS, Struts, TogetherJ, WebSphere

Development of a data transfer application with a progress bar in the browser

Real-time feedback on upload progress

Technologies: Eclipse, HTML, Java/JEE, JavaScript, Tomcat

Implementation of the intranet for Deutsche Post AG for 300,000 users

Development of 10 components (team calendar, address book, document management, chat, etc.) in virtual rooms with performance optimization

Technologies: Ant, Eclipse, Java/JEE, LDAP, PLSQL, Tomcat, XML, XSLT

E-commerce solution for buying lottery tickets online with WireCard payment

Personalized, password-protected area, selection and payment by credit card, direct debit, or bank transfer

Technologies: Java/JEE, Kawa for Java, MySQL, XML, WireCard

Development of a 3-tier client/server solution via RMI for Audi purchasing

Lightweight applet with RMI communication to host systems and Oracle DB

Technologies: Applet, Host API, Java/JEE, Oracle, RMI, Visual Age for Java

Development of Personal Stock Manager (PSM), a comprehensive trading application

Historical portfolio analysis, buy/sell signals via SMS, innovative search mechanisms, Applet/application/HTML version

Technologies: Applet, BEA WebLogic, DB2, Java/JEE, MS SQL, MySQL, RMI, WebSphere, Visual Age for Java

Program for capturing ballots with direct mainframe connectivity

Reduction of training needs and mainframe load through local data capture and transaction logging

Technologies: Host API, Visual C++

Price calculation for publishing products for the field service

Recursive calculation mechanism based on variable parameters, immediate on-site printing

Technologies: LotusScript

Development of a medical application for doctors with article import, tagging, and search

Compressed internet import and automatic database integration

Technologies: Visual C++