Recommended expert

Jörg-ulrich (Ulrich) Hammerbacher

Dataflows for Health Insurers

Jörg-ulrich Hammerbacher
Friedrichsdorf, Germany

Experience

May 2024 - Present
1 year 9 months

Dataflows for Health Insurers

  • Enhancement and creation of dataflows for health insurers
  • Data management of various storage systems (DB2, MSSQL, PostgreSQL, S3, custom APIs, …)
  • Documentation and training
  • Planning and rollout of NiFi 2.X (major upgrade)
  • Grafana integrations for visualization, monitoring and alerting
  • Extensive use of the nifi-api to continuously monitor the state of the system and its components
Jan 2024 - Apr 2024
4 months

Setup and development of a BI solution / data platform in the energy sector

  • Initial setup and development of the overall system
  • Ongoing consolidation of power generation data - building ETL flows to integrate load profile data from different wind and solar parks
  • Visualization of power generation, prices, etc.
  • Monitoring, observation, alerting
  • Automated analyses
  • Setup of a security infrastructure (servers, agents) to detect and alert on intrusions and security events (OSSEC)
  • Setup of a private virtual network (OpenVPN server/clients)
  • Setting up a relay email service
Dec 2023 - Dec 2023
1 month

Enhancement of a bank-wide data platform

  • Updating the data platform components at the hosting partner for all environments
  • Extending extensive NiFi flows for various production applications
  • Training employees in technology areas
  • Anonymization of customer and sales data
May 2023 - Nov 2023
7 months

Enhancement, optimization, documentation and knowledge transfer of an ETL and search solution for corporate customer master data

  • Expansion of core business solutions (mainly in NiFi)
  • Updating development infrastructures (Apache NiFi, Apache Solr cluster, ...)
  • Load and performance testing with overall system optimizations
  • Knowledge transfer
  • System documentation (e.g. TechSpec)
  • Data anonymization for testing purposes
Nov 2021 - Apr 2023
1 year 6 months

Setup and development of a bank-wide data platform

  • Consulting on tool selection
  • Installation and configuration of data platform components at the hosting partner for all environments
  • Creation of extensive NiFi flows for various production applications
  • Setup of a central log server that consolidates production logs and makes them searchable
  • Training employees in technology areas
  • Anonymization of customer and sales data
Jul 2019 - Sep 2021
2 years 3 months

Development of various IT solutions - especially in the open source search domain

  • Conducting evaluations and proof-of-concept implementations
  • Building core business solutions (primarily in NiFi)
  • Setting up, distributing, and using development infrastructures (Apache NiFi, Apache Solr cluster, ...)
  • Load and performance tests with overall system optimizations
  • Developing the access service layer (RESTful)
  • Setting up various security infrastructures
Jan 2018 - Jun 2019
1 year 6 months

Architecture, design, and implementation of a solution for the continuous centralization and updating of globally distributed

  • Contributing to the core idea of the solution
  • Prototypical implementation
  • Building the core business solution (mainly in NiFi)
  • Setting up, distributing, and using development infrastructures (Apache NiFi, Apache Solr cluster, Spring application)
  • Load and performance tests with overall system optimizations
  • Developing the access service layer (RESTful)
  • Continuous, development-driven communication and coordination with client systems to improve the overall solution
  • Setting up various security infrastructures
Mar 2011 - Dec 2017
6 years 10 months

Modernizing architecture and further developing the enterprise-wide search engines for a large German private bank

  • Designing the new system architecture and building the platform/enterprise-wide secure, scalable search engine ecosystem
  • Load and performance tests with overall system optimizations
  • Setting up, distributing, and using development infrastructures (Maven, Hudson/Jenkins, Nexus, MySQL, Wiki, Backlog, ...)
  • Database design with access layers
  • Developing and implementing project-specific monitoring solutions
  • Introducing extensive unit and web front-end tests
  • System documentation (e.g., TechSpec)
  • Designing and creating SOAP web services and JSON interfaces for in-house client systems with consulting
  • Developing and integrating a security connector framework
  • Setting up various security infrastructures
Nov 2010 - Feb 2011
4 months

Development including load and performance optimizations for the budget-oriented entry of a large vehicle configurator

  • Building parts of the administration logic (front end and business logic)
  • Load and performance tests as well as overall system optimizations
  • Migrating the application from a BEA cluster to a GlassFish cluster
  • Automating the entire application (e.g., cron jobs)
Sep 2010 - Jan 2011
5 months

Creating an international web application for selecting protective clothing

  • Initial setup of the complete development infrastructure
  • Architecture and design of all middleware services
  • Conceptualization of the domain model and database design
  • Presentations of results
  • Support in front-end development
May 2010 - Aug 2010
4 months

New development of a reservation system for a large German tour operator

  • Analysis of the existing travel document production process
  • Design of the sub-area for the new system in UML
  • Presentations of results
  • Organizing and conducting ongoing coordination with the Architecture Board
  • Clarification, evaluation and implementation of a variety of new requirements (features)
Jul 2009 - Apr 2010
10 months

New development of a group-wide CRM system for a large German private bank

  • Technical Lead for the ServiceLayer team
  • Planning and tracking Scrum stories
  • Coordination and alignment of a variety of reference and client systems
  • Development, alignment, and implementation of architecture topics
  • Technical integration of reference systems
  • Detailed design and implementation of service operations
Aug 2008 - May 2009
10 months

New development of a telecommunications monitoring platform

  • Review and extension of domain concepts
  • Complete development of various IT concepts and architectural aspects
  • Implementation of full GUI perspectives (complete creation of the interface, integrations and database optimizations; print functionality; ...)
  • Connection and integration of a search engine
  • Introduction of unit tests
  • Coordination with quality assurance
May 2008 - Jun 2008
2 months

Elaboration of architecture modernization

  • Detailed documentation of a future alternative architecture with pros and cons of all involved system components
  • Support in the preparation and presentation of results
Jan 2008 - Apr 2008
4 months

Relaunch of the bank portal (Extranet)

  • Further and new development of various portal functions: table of contents lists; login/MyProfile processes and dialogs; voting; online survey; newsletter distribution; content functions: automated order requests, contact forms, and forwarding functions
  • Integration of current market and stock exchange data from a supplier into the portal
Mar 2007 - Dec 2007
10 months

Design and implementation of new standalone application components in the context of an intranet eCRM system

  • Concept, design, and implementation of the new standalone application component using Java Server Faces (first-time use at the client) and iBATIS
  • Ongoing adjustments and improvements of this application component at the request of various business units
  • Further development of existing eCRM application modules
  • Introduction of new technologies (JSF, iBATIS) and staff coaching
  • Conducting and analyzing load and performance tests
  • Presenting analysis results with recommendations for action
  • Implementing performance optimizations for the entire system
Jan 2007 - Feb 2007
2 months

Enhancements to the corporate intranet and public website

  • Creating IT concepts
  • Goal-oriented coordination with the business department
  • Execution of various "small tasks"
Nov 2005 - Dec 2006
1 year 2 months

Company-wide unique customer identification according to Basel II / US-GAAP

  • Architecture, design, and implementation
  • Implementation of the Eclipse RCP client (first-time use at the client)
  • Build process management
  • Setting up and managing the project wiki
  • Staff coaching
Jan 2005 - Sep 2005
9 months

Evaluation of an existing software solution and development and integration of a prototype into the existing booking

  • Evaluating and recommending a partially existing solution
  • Conceptualization, design, and implementation of the new JSF prototype
  • Participation in strategic company concept and documentation for the 'Future Leisure Platform'
  • Supporting the product launch in a cluster environment
Jan 2002 - Dec 2004
3 years

Concept and development of a complete leisure travel system

  • Co-responsible for setting up the software architecture
  • Design and development of services
  • Evaluation and development of web services for the communication architecture between the Swing client and the server
  • Development and setup of the product structure plan and the complete build process using ANT
  • Building the client-service layer to encapsulate all client database access
  • Development and deployment of the application in cluster operation
Mar 2001 - Dec 2001
10 months

Design and implementation of an intranet eCRM system

  • Design and implementation of an administration front end and its database design for system user modifications
  • Implementation of the "Client Profile" component for managing comprehensive customer data
  • Update of the application from Struts 0.5 to Struts 1.0
  • Implementation of a JavaMail solution for automated sending of emails for new application accounts
  • Implementation and further development of the "TradeList" and "CoreInformation" components
  • Development of a generic filter (XP-Filter) for dynamic SQL query generation using JDOM
Feb 2001 - Mar 2001
2 months

ATG Dynamo eBusiness Platform training

  • Design and implementation of transactional enterprise portals with ATG Dynamo
  • Programming of dynamic web components
  • Administration and configuration of the Dynamo server platform
Oct 2000 - Feb 2001
5 months

Functional concept, design, and implementation of a printing system

  • Server-side development of a printing system for monetary vouchers
  • Database design for voucher, printer, and print job management
Sep 1998 - Sep 2000
2 years 1 month

Analysis, design and development of a web client

  • Further development of a rich client for a travel reservation system
  • Analysis, design and development of a new web client
Oct 1996 - Aug 1998
1 year 11 months

Concept, analysis, design, implementation and introduction of the client software for a travel reservation system

  • Concept, analysis, design, implementation and introduction of the client software
  • Core development and creation of a framework
  • Technical coordination of subsequent application projects
Apr 1995 - Sep 1996
1 year 6 months

New development, object-oriented analysis and design of outsourced logistics

  • Contributed to the new development of outsourced logistics
  • Object-oriented analysis and design using OMT
  • Client and server implementations

Skills

  • Apache Nifi (Dataflow) / Apache Solr Search Engine, Big Data Etl / Data Engineer

  • Object-oriented Analysis, Architecture, Design And Implementation Of Middleware Architectures On A Java Ee Basis (Java Experience Since 2001)

  • Development Of Application Software

  • J2ee

  • Ui Development (Rcp, Jsf)

  • Databases

  • Apache Nifi (Dataflow)

  • Apache Solr (Search Engine)

  • Analysis, Architecture, Design And Implementation Of Java Ee-based Middleware Architectures

  • Development Of Application Software (User Interfaces, Business Logic, Databases)

  • Object-oriented Software Development

  • Systematic Setup And Optimization Of It Project Infrastructures

  • Coordination And Tracking Of Development Tasks

  • Technical Project Leadership

  • Apache Nifi

  • Etl

  • J2ee (Jee)

  • Ooa/ood (Uml, Omt)

  • Rup

  • Xp

  • Prototyping

  • Employee Coaching

  • Scrum

  • Apache Nifi

  • Apache Solr

  • Nifi Registry

  • Minifi

  • Pki

  • Aes

  • Veracrypt

  • Ossec

  • Openvpn

  • J2se

  • Jee (Expert)

  • Grafana

  • Prometheus

  • Banana

  • Superset

  • Redis Cluster / Sentinel

  • Visual Studio Code

  • Eclipse Platform

  • Rich Client Platform (Rcp)

  • Kubernetes

  • Ansible

  • Jsf Frameworks: Apache Myfaces, Primefaces, Jboss Richfaces, Sun Jsf

  • Hudson

  • Jenkins

  • Cruisecontrol

  • Ant

  • Maven

  • Junit

  • Easymock

  • Mockito

  • Sonarcube

  • Together

  • Argouml

  • Magicdraw

  • Enterprise Architect

  • Git

  • Subversion (Svn)

  • Cvs

  • Mks Source Integrity

  • Continuus

  • Clearcase

  • Java

  • Jdk

  • Tcp/ip

  • Http(s)

  • Ftp

  • Putty (Ssh)

  • Struts

  • Spring

  • Soa

  • Webservices

  • Axis2

  • Jax-ws

  • Soapui

  • Bugzilla

  • Jira

  • Mercury Quality Center

  • Vm Ware

  • Oracle Vm Virtualbox

  • Mingle (Scrum Tool)

  • Jmeter

  • Hp Idol

  • Manifoldcf

  • Qgis

  • Postfix

  • Microsoft Office

  • Libreoffice

  • Mariadb / Mysql

  • Postgresql

  • Oracle

  • Hsqldb

  • Sybase

  • Informix

  • Jdbc

  • Hibernate + Ehcache

  • Ibatis

  • Db2

  • Redis

  • Flyway

  • Bea Weblogic

  • Jboss

  • Apache Tomcat

  • Jetty

  • Ibm Websphere

  • Macromedia Jrun

  • Glassfish

  • Java

  • Xml

  • Sql

  • Jsp

  • Jsf

  • Ejb

  • Xslt

  • Xsd

  • Jaxb

  • Jms

  • Jpa

  • Jax-ws

  • Html

  • Javascript

  • Json

  • Jsonpath

  • Jquery

  • Tcl

  • Unix (Linux, Hp-ux, Ibm Aix, Solaris)

  • Windows (Nt, 2000, Xp, Vista, 7, 8, ...)

  • Many Years Of Experience In Software Projects

  • Big Data Flows

  • Design And Implementation Of 3-tier Software Architectures On A Java Ee Basis And Their Deployment

  • Technical And Economic Perspective On Project Goals

  • Coordination And Communication Between Business Units And It

  • Strong Teamwork Skills And A Pronounced Goal Orientation

  • High Sense Of Responsibility And Self-initiative

  • Use Of Open Source Solutions In Enterprise Applications

Languages

German
Native
English
Advanced

Education

Lorem ipsum dolor sit amet

Diploma in Computer Science (University of Applied Sciences) · Computer Science

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