Full Stack Developer/Architect

Set up the new digitization strategy

Create new processing of batch and dialog jobs using Camunda as a process engine

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

Implementation of 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 confirmation of a cost estimate in health insurance as a customer journey

Developed an app feature to photograph the estimate and perform an OCR-based quality and domain data check

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

Introduced OCR right when taking photos for immediate feedback and discarding unusable shots

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 arranging and posting events

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

Fork based on million guides

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

Development of the LVdoktor document editor from scratch

Enabled business departments to collaboratively create complex dynamic PDF documents with instant PDF testing

Overcame skeptical department reactions, 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 audit trail 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, JaxWS, Jenkins, JMS, jQuery, JPA, JSF, JUnit, Maven, Mockito, PayPal, Postgres, SaaS, Scrum, Spring, SQL, XML

Implementation of the Fujitsu marketplace (SaaS)

JEE implementation with auditing 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)

Auditing of all activities and complex billing models

Multiple award winner

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 webshop in one

Features: Online/Offline, mobile Android app, mobile browser access, account data import, dunning, graphical reports, multilingual 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 a few milliseconds

Technologies: Eclipse, Hibernate, Java/JEE, WebSphere

Development of a test environment for the new calculation core

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

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

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

Responsible for modules from requirements discussions to implementation

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

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

Real-time feedback on upload progress

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

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

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

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

E-commerce solution for online purchase of lottery tickets 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

Developed 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

Developed Personal Stock Manager (PSM), a comprehensive stock trading application

Historical portfolio analysis, buy/sell signals via SMS, innovative search features, 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 connection

Reduced training and mainframe load by capturing locally and writing transactions

Technologies: Host API, Visual C++

Price calculation of publishing products for field sales

Recursive calculation mechanism based on variable parameters, instant printout on site

Technologies: LotusScript

Development of a physicians' application with article import, tagging, and search

Compressed internet import and automatic database integration

Technologies: Visual C++