Rainer L.

Senior IT Consultant, Senior Software Architect, Senior Software Developer

Cologne, Germany

Experience

Apr 2024 - May 2024
2 months
Germany

Senior IT-Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer

Techniker Krankenkasse

  • Concept for database major/minor release automation
  • As-is analysis
  • Evaluation of Redgate Flyway functionalities
  • Concept creation
Oct 2023 - Dec 2024
1 year 3 months
Cologne, Germany

Senior IT-Consultant, Senior Software Architect, Senior Software Developer

ASS Werbe GmbH

  • Migration from Microsoft Exchange 2010 to Microsoft Exchange Online
  • Migration from Microsoft Windows 7 to Microsoft Windows 10
  • Migration from Microsoft Office to Microsoft 365
  • Outsourcing of the entire IT infrastructure
  • Setup of a data platform for incoming and outgoing data
  • Provision of standard-based interfaces
  • Replacement of Delphi custom developments
  • IT training for an employee
  • Training sessions
Oct 2020 - Sep 2023
3 years
Hemer, Germany

Senior IT-Consultant, Senior Software Architect, Senior Software Developer

Südwestfalen-IT (SIT)

  • Design, maintenance, enhancement, quality assurance and documentation of the ExtensionAPI and client components

  • Functional and technical responsibility for connecting form servers to the Kommunalportal.NRW

  • Extension development

  • Coaching and know-how transfer

  • Design, maintenance, quality assurance and documentation of the various API components

  • Setup of CI/CD and Continuous Inspection pipelines

  • Requirements, release, configuration, documentation, testing and build management activities

Apr 2020 - Dec 2024
4 years 9 months
Cologne, Germany

IT Lecturer

Rheinische Akademie Köln gGmbH

Oct 2019 - Mar 2020
6 months
Bonn, Germany

Senior IT-Consultant, DevOps Engineer

Deutsche Post DHL Group

  • Replacement of an old CRM system
  • Migration to Salesforce with Talend as middleware
  • Further development of build management
  • Setup of a CI/CD pipeline for Talend middleware artifacts
  • Integration of the company-wide Artifactory instances
  • Git configuration
  • Support for the deployment process (Salesforce project)
  • Setup of continuous inspection for Talend artifacts and the Salesforce project
  • Setup of test automation
  • Setup of an OpenShift cluster for the Talend middleware stack
Aug 2019 - Sep 2019
2 months
Koblenz, Germany

Senior IT Consultant, Performance Analyst

Debeka

Functional and technical consulting for the development of a high-performance, scalable enterprise application (JEE, WebLogic, JSP, jQuery, HTML5, CSS3) in the BO/P domain, aiming to identify corrective measures for performance optimization.

Jul 2016 - May 2019
2 years 11 months
Duisburg, Germany

Senior IT Consultant, DevOps Engineer

ThyssenKrupp Steel Europe AG

Apr 2014 - May 2016
2 years 2 months
Cologne, Germany

Senior IT Consultant, Configuration Manager

Gothaer-Systems GmbH

  • Set up a CRM system to support the implementation of the multichannel strategy and more efficient mapping of the sales partners' business processes

  • Migrated the Goliath application from Maven 2 to Maven 3

  • Set up and managed a CI system with Nexus, Jenkins CI, build slaves, and SonarQube

  • Migrated source code management from Git to Subversion

  • Created build and deployment plans

  • Evaluated and implemented code review solutions

  • Automated the provisioning of test stages

  • Developed automated solutions for code quality management and migration

Sep 2013 - Mar 2014
7 months
Düsseldorf, Germany

Senior IT Consultant, Senior JEE Developer

HSBC Trinkaus & Burkhardt AG

Supported Java application development for the Client On-Boarding and Account Maintenance (COBAM) project - Foreign Account Tax Compliance Act (FATCA). Responsibilities included capturing and processing customer master data and designing business processes with jBPM.

Jan 2013 - Jul 2013
7 months
Nuremberg, Germany

Senior IT Consultant

Sparda Datenverarbeitung eG

  • Maintenance and further development of the PRISMA sales portal for the Sparda banking group
  • Developed frontend (portlet) and backend components (web service) for DEVK
  • Adjustments for the SEPA migration
  • Migrated residual debt insurance from Cardif to Credit Life
  • Implemented JAX-WS based backend components
  • Conducted code reviews and refactoring
May 2011 - Dec 2012
1 year 8 months
Dillingen, Germany

Software Architect / Developer, Maven Expert, JBoss Expert

AG der Dillinger Hüttenwerke

  • Migration of Java Enterprise steel mill control software
  • Maintenance and further development of the SLS subprojects
  • Build and deployment management
  • Maven and JBoss migration and optimization
  • Release management and support
Aug 2010 - Apr 2011
9 months
Neuss, Germany

Software Architect / Developer

Verband der Vereine Creditreform e.V.

  • Development of an XML schema and subsystem to import foreign trade reports
  • Development of an output management system
  • Implementation of standards-based interfaces
  • Archiving and document management
Sep 2009 - Feb 2010
6 months
Mönchengladbach, Germany

Software Architect / Developer, Senior IT-Consultant

Santander Consumer Bank AG

  • Implementation of business rules with ILOG JRules
  • Migration of the credit decision risk management for durables
  • Implementation of the dealer rating system
  • Development of the PropertyManager for rule control
  • Setup of an XML-based QA pipeline
  • Code review and refactoring
Aug 2008 - Jun 2009
11 months
Munich, Germany

Software Architect / Developer, Senior IT-Consultant

Steria Mummert Consulting AG

  • Performance analysis and optimization of the Tributum application for capital gains tax
  • Development of an XML-based QA pipeline
  • Test automation
  • Code review and refactoring
Jun 2008 - Mar 2013
4 years 10 months

Founder, Project Lead, Software Architect / Developer

Open Source Project @ SourceForge

Development of Java Rules based enterprise application framework:

  • Maven plugins for Rule Execution Sets
  • JSR 94 based JEE Resource Adapter
  • Stateful and Stateless Decision Services
  • JMX Management and Monitoring
Dec 2007 - Feb 2008
3 months
Berlin, Germany

Business Rules Management Expert

Bundesdruckerei GmbH

  • Prototype for Border Control Platform
  • Integration of Drools Rules Engine
  • Integration of ePass and fingerprint systems
  • Development of a web frontend
  • Evaluation of BRMS and BPMS
Aug 2007 - Mar 2013
5 years 8 months

Founder, Project Lead, Software Architect / Developer

Open Source Project @ SourceForge

Development of XSL Transformation stylesheets to convert Adobe XDP documents into XSL-FO format

Nov 2003 - Dec 2007
4 years 2 months
Nuremberg, Germany

Senior Project Lead

TeamBank AG

  • Development of the easyCredit installment loan application
  • Responsibility for the print component and reporting
  • Integration of rules engines (Drools, JESS)
  • Performance optimization
  • ETL and reporting development

Languages

German
Native
English
Intermediate

Education

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Magister, Philosophy and Phonetics · Musicology

FernUniversität Hagen

Diploma, Business Administration · Computer Science · Germany

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