General
Education
Curriculum Vitae
Top Skills
Java
Spring Boot 4.x
Java EE
Scrum / PO
Azure
AWS
Kafka
Docker
Kubernetes
Helm Charts
Fullstack
Angular
Grafana
Prometheus
Keycloak
Drools
Gitlab CI
Profile / Overview
The basis and key points of my work are common IT technologies with main emphasis in Java. Building on top of current analysis, design and software development technics User Story Writing, Clean Code, Scrum, with involvement of existing frameworks and concepts Spring Boot, JEE/EJB, Angular, Rest, Cloud Services, gives me mainly the knowledge of many case tools and development environments IntelliJ, Docker, Kubernetes, AWS, Azure, Kafka the possibility, to develop either products from the scratch, or out of existing applications Integration of Messaging Systems like JMS, MQSeries, Camel ESB / Webservice Integration and guiding them up to the production level.
Working Area
- Development and implementation from all software projects around Java
- Product Owner Role in Scrum processes
- Design, development and implementation of complex applications and frameworks
- Technical Project Management
- Coaching
Languages
german
english
spanish
russian
Programming Languages
Java (Since 1996) 5
Java Script, Java TS (Since 1998) 4
XSLT, XML, CSS (Since 2000) 5
JSON, YAML (Since 2000) 5
Maven (Since 2013) 5
SQL (Since 1995) 4
Ant Script (Since 2000) 4
Cobol (Since 1995) 3
Perl (Since 1998) 3
Pascal (Since 1991) 2
JCL (Since 1996) 2
Smalltalk (Since 1996) 3
Assembler (Since 1987) 2
Methods
OO Programming Standards 5
Scrum Project Management (PO) 4
Spring Framework 6.x 4
Spring Boot 4.x 4
Docker 4
JEE 5/6 (JAX-RS, JAX-WS, JAXB, JSF, JSP, EJBs, JPA, JMS) 4
Angular 11 + Angular JS 3
Android Development with Java 4
O/R Mapping Concepts (Hibernate, OpenJPA) 5
Liquibase, QueryDSL 4
Drools Rules Engine 3
Test Frameworks: JUnit, Cucumber Test, Mockito, EasyMock 5
Legacy: Eclipse Plugin Framework 2
Legacy: Java Plugin Framework (JPF / Open Source) 2
Legacy: San Francisco Framework 2
Tools
Grafana, Prometheus 3
IntelliJ 5
Jira, Confluence 5
Cloud Computing: AWS, CDK with Lambdas, DynamoDB, Rest APIs 3
Cloud Computing: Azure, CosmosDB (NoSql), Serverless Functions 3
Cloud Computing: Kubernetes, Helm Charts, Redhat Openshift, Docker 3
Kafka Consumer/ Producer, Debezium DB Sync 4
Gitlab incl. CI/CD, GitLab Runner 4
Eclipse Family / IBM Websphere Studio Application Developer 5
APM: Dynatrace Diagnostics 3
APM: Oracle Mission Control, Flightmanager 3
APM: AppDynamics 3
DevOps: Bamboo, Jenkins, GitLab Runner 4
Artifactory Maven Repository 4
Node JS, NPM, NVM 3
Swagger 4
Gradle 3
NetBeans 3
IBM Rational Software Architect 5
IBM Websphere Application Server (Win, Linux, iSeries) 5
IBM Contentmanager 3
IBM MQ Workflow 4
NetExpress 3
Continuus, PVCS, GIT, Serena ChangeMan 4
Companies
2000 – 2025
Dipl. Wirt. Inf. Oliver Gries
Freelance Software Architect · https://www.java-concepts.com
1995 – 1999
CSG Germany (an IBM Global Service Company)
Senior Software Consultant · https://www.it-servicesandsolutions.de
Reference: Dr. Hans-Martin Köppe; General Reference
1991 – 1995
Freelance work during the study
Freelance programmer
1992 – 1995
Dresdner Bank
Part time student jobs
Projects (Commercial)
07/2025 – ongoing
Pentacor GmbH
- Sector
- Automotive
- Location
- Chemnitz
- Technical
- Angular 21, Next JS 16, Redis, Java TS, Spring Boot 3.5, Docker, Redux, Maven, MongoDB, AWS, Azure
- Responsibility / Role
- Developer
- Description
- Developing applications for the automotive industries.
- Homepage
- https://www.pentacor.de
09/2024 – 03/2025
niiio wealth management GmbH
- Duration (in Months)
- 8
- Sector
- Banking
- Location
- Dresden
- Technical
- Angular, Java TS, Spring Boot, Docker, Redux, Swagger, HATEOS, Maven, Liquibase, QueryDSL, Postgresql
- Responsibility / Role
- Developer
- Description
- Developing customer specific Robo Advisory products
- Reference
- Ina Just, niiio wealth management GmbH
- Homepage
- https://www.dser.de
01/2024 – 09/2024
DSER GmbH
- Duration (in Months)
- 9
- Sector
- Banking
- Location
- Görlitz
- Technical
- Angular, Java TS, Spring Boot, Docker, Redux, Swagger, HATEOS, Maven, Liquibase, QueryDSL, Postgresql
- Responsibility / Role
- Developer
- Description
- Developing customer specific Robo Advisory products
- Reference
- Ina Just, niiio wealth management GmbH
- Homepage
- https://www.dser.de
09/2022 – 12/2023
FIXHub GmbH
- Duration (in Months)
- 14
- Sector
- Banking
- Location
- Görlitz
- Technical
- Angular, Java TS, Spring Boot, Docker, Redux, Swagger, HATEOS, Maven, Liquibase, QueryDSL, Postgresql
- Responsibility / Role
- Developer
- Description
- Developing customer specific Robo Advisory products
- Reference
- Ina Just, niiio wealth management GmbH
- Homepage
- https://www.fixhub.net
02/2021 – 09/2022
Niiio GmbH
- Duration (in Months)
- 18
- Sector
- Banking
- Location
- Görlitz
- Technical
- Angular, Java TS, Spring Boot, Docker, Redux, Swagger, HATEOS, Maven, Liquibase, QueryDSL, Postgresql
- Responsibility / Role
- Developer
- Description
- Developing features for the product "White Label Robo Advisor" and other customer specific Robo Advisory products
- Reference
- Ina Just, niiio wealth management GmbH
- Homepage
- https://www.niiio.de
08/2018 – 01/2021
DSER GmbH
- Duration (in Months)
- 28
- Sector
- Banking
- Location
- Dresden/Görlitz
- Technical
- Spring Boot, Postgres, Rest und Hessian WS, Angular 6,10, Java TS, Docker, Redux, Swagger, JMS über Camel, HATEOS, Maven, Liquibase, QueryDSL
- Responsibility / Role
- Developer
- Description
- Enhancement from existing software components within the product "Digital Asset Management"
- Reference
- Ina Just, niiio wealth management GmbH
- Homepage
- https://www.dser.de
03/2016 – 06/2018
Otto Group / Otto Group Solution Provider
- Duration (in Months)
- 27
- Sector
- Logistics
- Location
- Dresden
- Technical
- Glassfish, Jetty, Oracle DB, Eclipse Link, Rails, Maven, JEE, Jira, Confluence
- Responsibility / Role
- Developer, SPOC of the product in the project scope
- Description
- Direct integration of the warehouse management system from one of the biggest Hermes Fulfillment centers in Germany at the SAP system of the company Bonprix
- Homepage
- https://www.osp.de
02/2015 – 02/2016
AllSecur Deutschland AG
- Duration (in Months)
- 13 Month
- Sector
- Insurance
- Location
- Munich
- Technical
- Tomcat, Postgres, IntelliJ, Git, Stash, Maven, Grunt, Node, NPM, Puppet, Mule, Flyway, AngularJS, Bamboo, Jira, Confluence; Component Keywords: AngularJS App with REST Calls on Spring based Services; JPA with Hibernate
- Responsibility / Role
- Product Owner Proxy
- Description
- Development of new web applications for insurance products based on a new architecture
- Reference
- Herger / Management AllSecur IT Operations (German)
- Homepage
- https://www.allsecur.de
06/2013 – 12/2014
IBM Deutschland GmbH
- Duration (in Months)
- 19
- Sector
- Finance
- Location
- Chemnitz
- Technical
- Linux, Weblogic, Websphere, Oracle DB, DB/2, Rational Software Architect, Rational Team Concert, SVN, Ant, Maven, Jenkins, Oracle Flight Recorder / Mission Control; Components: SOA with Spring 3.1.1, WS with Axis and EJB 3.1.0, JSF 1.2 with Trinidad 1.1.4, JPA with Hibernate, MQ with JMS
- Responsibility / Role
- Design Team
- Description
- Development, Customization and Rollout of the product "IBM SEPA Mandate Manager / IBM SEPA Hub". The SEPA MandateManager uses standard interfaces: web based GUI, WebSphere MQ, SOAP-Web-Services, Host-Adapter, Filesystem interfaces with MFT and the possibility to integrate other technical interfaces throughout SOA.
- Reference
- Volker Mielke, Gesamtprojektleiter SEPA HUB Factory, IBM
- Homepage
- https://www.ibm.de
01/2013 – 06/2013
Provinzial Versicherungs AG
- Duration (in Months)
- 6
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; IBM Workflow; IBM DB2 Content Manager; Serena ChangeMan; AppDynamics; Tabex; Jenkins; Websphere Application Server; Tomcat; Components: Java, Spring, JPA, JPQL, SOA, CXF WS, XSL, open JPA, Drools Expert, ESB with JMS, JMX, Cobol, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Extending electronic document management system Phase 3
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
09/2012 – 12/2012
Provinzial Versicherungs AG
- Duration (in Months)
- 3
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; Serena ChangeMan; AppDynamics; Tabex; Components: Java, Spring, JPA, JPQL, SOA, CXF WS, XSL, open JPA, JMX, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Synchronization system between an internal appointment application and Lotus Notes
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
09/2011 – 09/2012
Provinzial Versicherungs AG
- Duration (in Months)
- 12
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; IBM Workflow; IBM DB2 Content Manager; Serena ChangeMan; AppDynamics; Tabex; Jenkins; Websphere Application Server; Tomcat; Components: Java, Spring, JPA, JPQL, SOA, CXF WS, XSL, open JPA, Drools Expert, ESB with JMS, JMX, Cobol, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Extending electronic document management system Phase 2
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
05/2010 – 09/2011
Provinzial Versicherungs AG
- Duration (in Months)
- 16
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; IBM Workflow; IBM DB2 Content Manager; Serena ChangeMan; AppDynamics; Tabex; Components: Java, JPA, JPQL, SOA, CXF WS, XSL, open JPA, JMX, Cobol, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Document access for field service
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
01/2009 – 05/2010
Provinzial Versicherungs AG
- Duration (in Months)
- 16
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; Serena ChangeMan; Dynatrace; Components: Java, SOA, XSL, ESB with Mule, JMX, Cobol, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Extending the claim system
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
10/2008 – 12/2008
Sparkassen Direkt Versicherung
- Duration (in Months)
- 2
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- Eclipse; CVS; Serena ChangeMan; Components: Java, Cobol, AJAX, JSP, Java Script, Prototype, Scriptaculous
- Responsibility / Role
- Implementation
- Description
- Extending the online rate calculation system
- Homepage
- https://www.sparkassen-direkt.de
08/2007 – 10/2008
Provinzial Versicherungs AG
- Duration (in Months)
- 15
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; Serena ChangeMan; Dynatrace; IBM MQ Workflow; IBM DB/2 Contentmanager; Components: Java, SOA, SQL, XSL, ESB with Mule, JMX, Cobol, CSS
- Responsibility / Role
- Coaching, Implementation
- Description
- Building and extending a workflow and document archiving system Phase 1
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
07/2007 – 11/2007
[name protected]
- Duration (in Months)
- 33 Days
- Sector
- Labour Union
- Location
- [protected]
- Technical
- IBM Websphere 6.1 iSeries; Components: Java, Struts, Java Tag Libs, JPF, JAXP, JDBC, SQL
- Responsibility / Role
- Developer
- Description
- Refactoring of an existing web application and introducing JPF (Java Plugin Framework)
01/2006 – 06/2007
Provinzial Versicherungs AG
- Duration (in Months)
- 18
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- z/OS; Eclipse; CVS; Serena ChangeMan; Components: Java, XSL, Cobol, CSS, SQL
- Responsibility / Role
- Coaching, Implementation
- Description
- Enhancements for the claim system
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
01/2003 – 12/2005
Provinzial Rheinland Versicherungs AG
- Duration (in Months)
- 3 Years
- Sector
- Assurance
- Location
- Düsseldorf
- Technical
- IBM Mainframe; IBM Visual Age for Java 4.0; Rational Rose; PVCS; CVS; IBM Visual Age for Cobol; Websphere Application Server z/OS; Tomcat; Serena ChangeMan; Components: Java, XSL, Cobol, CSS, SQL
- Responsibility / Role
- Coaching, Implementation
- Description
- Building of a field service application
- Reference
- Klaus Jaeger, CEO Codecentric AG (German)
- Homepage
- https://www.provinzial.com
09/2005 – 10/2005
[name protected]
- Duration (in Months)
- 25 Days
- Sector
- Publishing Company
- Location
- [protected]
- Responsibility / Role
- Creator
- Description
- Creation of a document with functional specs for an existing, long used customer application with the aim to get a full functional description of the existing business processes covered by this software; Aim was to get a detailed description of the existing scope to redevelop this application from scratch.
08/2005 – 08/2005
RCI Banque S.A. (Renault Bank)
- Duration (in Months)
- 2 Days
- Sector
- Banking Service
- Location
- Neuss/Hilden
- Technical
- IBM Websphere Development Studio Client for ISeries (WDSC)
- Responsibility / Role
- Lecturer
- Description
- Course: Introduction in Hibernate
06/2004 – 07/2004
Deutsche Post Rentenservice (Berlin)
- Duration (in Months)
- 1
- Sector
- Public Service
- Location
- Berlin
- Technical
- Together Control Center, Tomcat
- Responsibility / Role
- Lecturer
- Description
- Course: Introduction in Internet Technologies
11/2002 – 12/2002
Deutsche Post Rentenservice (Cologne)
- Duration (in Months)
- 1
- Sector
- Public Service
- Location
- Cologne
- Technical
- Together Control Center 6.0, OC4J
- Responsibility / Role
- Conception and Lecturer
- Description
- Course: J2EE
06/2002 – 10/2002
[name protected]
- Duration (in Months)
- 4
- Sector
- Labor Union
- Location
- [protected]
- Technical
- IBM iSeries V5R1 (AS/400), PC, OS/400, DB2, Java, Windows 2000, IBM Websphere 4.0 (iSeries und Windows), IBM Websphere Studio Application Developer 4.0, Apache Jakarta Struts Framework
- Responsibility / Role
- Technical project management; Responsibility for concept, design and implementation
- Description
- An existing application for maintaining information about union members was transferred into a web (intranet) based application by using JSPs, Struts and IBM Websphere.
01/2001 – 12/2001
Fiscus GmbH
- Duration (in Months)
- 12
- Sector
- Public Service
- Location
- Bonn, Germany
- Technical
- Java, EJBs, XML, XSL, San Francisco Framework, Websphere (IBM), Bean Transactions (Siemens), Windows NT
- Responsibility / Role
- Responsibility subsystem Devices; Work at the Import / Export subsystem
- Description
- The exchange with external clients and legacy systems within the new taxware product "fiscus" is done by using flexible, virtual device interfaces. The "Import/Export" subsystem is responsible for converting the internal document format (XML) into and back from all necessary external data formats (binary, EBCDIC, ...). Devices are a virtual queuing and batch processing system for asynchronic processing of e.g. Import/Export jobs.
- Reference
- Ingo Beling; Projektleiter Technische Basis - Fiscus Projekt
- Homepage
- https://www.fiscus.info
02/2000 – 11/2000
IT centre of the ministry of finance (county NRW)
- Duration (in Months)
- 10
- Sector
- Public Service
- Location
- Düsseldorf, Germany
- Technical
- Java, J2EE / EJBs, XML, XSL, San Francisco Framework, Websphere, Windows NT
- Responsibility / Role
- Consulting within the inner project 'Körperschaftssteuer' (corporate income tax) of the 'Fiscus' project; Coaching; Prototyping; Analysis and Design
- Description
- The 'Fiscus' project is developing a new concept and solution for the entire IT structure in Germany regarding the calculation of taxes. It is a common project from all 16 counties in Germany.
- Reference
- Uwe Speck, RZF NRW
- Homepage
- https://www.fiscus.info
06/1999 – 12/1999
Karstadt AG
- Duration (in Months)
- 6
- Sector
- Commerce
- Location
- Essen, Germany
- Technical
- IBM MainFrame, PC, MVS, CICS, Cobol, DB2, Java, Windows NT
- Responsibility / Role
- Technical project management; Responsibility for design and realization of the Business- and IT concept. Main responsibility for development.
- Description
- Realization of the Business- and IT concept.
- Reference
- Dr. Hans-Martin Köppe; General Reference (German)
- Homepage
- https://www.karstadt.de
11/1998 – 02/1999
Karstadt AG
- Duration (in Months)
- 3
- Sector
- Commerce
- Location
- Essen, Germany
- Technical
- Java, Windows NT
- Responsibility / Role
- Business analysis, target concept and creation of a Business and IT concept. Implementation. Prototyping.
- Description
- An application for the coordination of advertisements and selling actions has to be developed. Client (Java with Browser at the Intranet); Server (CICS/Cobol).
- Reference
- Dr. Hans-Martin Köppe; General Reference (German)
- Homepage
- https://www.karstadt.de
1996 – 1998
IBM Huon Solutions, London (product supplier) for ARAG Legal Assurance Düsseldorf
- Duration (in Months)
- 22
- Sector
- Assurance
- Location
- London, UK and Düsseldorf, Germany
- Technical
- IBM MainFrame, PC, MVS, CICS, Cobol, DB2, Windows NT, Java (Client operating system and programming language have been changed)
- Responsibility / Role
- Software Architect and Framework Development
- Description
- The fat-client architecture has been changed to thin-client. Java has been used as the client programming language.
- Reference
- Dave Lockwood; Manager New Technology Group Huon Corporation
- Homepage
- https://www.ibm.com, https://www.arag.de
1995 – 1996
IBM Huon Solutions
- Duration (in Months)
- 4
- Sector
- Assurance
- Location
- London, UK
- Technical
- IBM MainFrame, PC, MVS, CICS, Cobol, DB2, OS/2, SmallTalk
- Responsibility / Role
- Trainee as technical representative for a non-life insurance product in the German speaking area
- Description
- An existing insurance product based on mainframe 3270 Cobol logic has been 'client/server' - enabled without changing the core 3270 business functionality. This was achieved by using code translators and code generators for the old code and by dividing each program into a 3 tier architecture.
- Reference
- Dave Lockwood; Manager New Technology Group Huon Corporation
- Homepage
- https://www.ibm.com
Projects (Open Source)
06/2018 – 2021
[Working Title: jWaPro]
- Technical
- Android SDK 24; Dagger, GreenDAO, Spring Boot, Spring OAuth2 Resttemplate Android, Spring Rest API, Spring Actuator with Prometheus DB, HATEOS Resources, Helm Charts, GitLab CI, Kubernetes Ingress, AWS Integration for oAuth with Double Optin registration via Lambdas and DynamoDB
- Responsibility / Role
- Development
- Description
- Case Study: Android App with Spring Boot Framework in backend for several device-spanning usage of time profiles for app usages incl. REST service integration for PC applications (Third Party software needed).
03/2003 – 12/2006
dbcopy Eclipse Plugin
- Technical
- Eclipse Plugin; Eclipse Framework, JDBC
- Responsibility / Role
- Project Manager; Implementation; Support
- Description
- An Eclipse Plugin to support the copy process across various databases.
- Homepage
- https://www.java-concepts.com/jconcepts/downloads/#dbcopy-eclipse-plugin
07/2003 – 10/2008
jProject Business Suite
- Technical
- Webapplication; Struts; Hibernate; Jasper Reports Framework; Open Adapter Framework; Docbook Documentation
- Responsibility / Role
- Project Manager; Implementation; Support
- Description
- A Webapplication for managing projects, time schedules and project related time reporting, invoices, travel organizer, customer management with role concept, reporting
- Homepage
- https://www.java-concepts.com/jconcepts/downloads/#jproject-business-suite
Memberships
Societies to support computer science
2000 – 2014