Ralf Bergs - Implementation of a Middleware Solution

Q: Where is Ralf based?

Ralf is based in Großhansdorf, Germany .

Q: What languages does Ralf speak?

Ralf speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Ralf have?

Ralf has at least 27 years of experience. During this time, Ralf has worked in at least 20 different roles and for 16 different companies . The average length of individual experience is 1 year and 3 months . Note that Ralf may not have shared all experience and actually has more experience.

Q: What is Ralf's latest experience?

Ralf's most recent position is Implementation of a Middleware Solution at Utility provider .

Q: What companies has Ralf worked for in recent years?

In recent years, Ralf has worked for Utility provider and Transport company .

Q: Which industries is Ralf most experienced in?

Ralf is most experienced in industries like Insurance , Transportation and Logistics , and Banking and Finance . Ralf also has some experience in Information Technology (IT) , Retail , and Government and Public Administration .

Q: Which business areas is Ralf most experienced in?

Ralf is most experienced in business areas like Information Technology (IT) , Product Development , and Project Management . Ralf also has some experience in Quality Assurance (QA) , Business Intelligence , and Sales .

Q: Which industries has Ralf worked in recently?

Ralf has recently worked in industries like Transportation and Logistics and Utility Services .

Q: Which business areas has Ralf worked in recently?

Ralf has recently worked in business areas like Information Technology (IT) .

Recommended expert

Großhansdorf, Germany

Experience

Jun 2023 - Oct 2023

5 months

Implementation of a Middleware Solution

Utility provider

Analysis of the existing software landscape
Tool selection with evaluation of MuleSoft Anypoint and Talend Open Studio
Evaluation of integration services on the Azure platform
Setup of Azure App Services
Proof-of-concept implementation of offer data import with MuleSoft and Spring Boot in Azure App Service

Jan 2021 - Dec 2024

4 years

Interface redesign and development as part of an SAP S/4HANA migration

Transport company

Bug fixing and optimization of legacy systems
Analysis of existing system interfaces and their redesign
Setup of SAP BTP (IAM, deployment pipelines, logging, etc.)
Guidance for new developers in creating Spring Boot microservices
Migration of legacy SAP interfaces into Spring Boot microservices
Development of asynchronous interfaces using Protobuf and RabbitMQ
Introduction, hypercare, bug fixing, and performance optimization

Feb 2018 - Dec 2020

2 years 11 months

Migration of legacy backend application to an OpenShift cloud environment

Logistics company

Bug fixing and enhancements of existing backend applications
Re-implementation of backend applications in OpenShift, Kubernetes, and Docker environments using Spring Boot, REST, and Postgres
Creation of deployment pipelines with Jenkins
Design and implementation of application UIs with VueJS
Provisioning of application metrics with Prometheus and Grafana
Performance tuning in high-load systems
Development of stored procedures and database migration
Refactoring of existing legacy code
Operational responsibility for the migrated microservices

Aug 2013 - Jan 2018

4 years 6 months

Process automation and integration of external service providers; corporate customer portal

Insurance company

Integration of multiple external service providers via secure web services or SFTP connections
Implementation of B2B transformations using Apache Camel
Automation of insurance processes with Camunda
Creation of web services with JAXB
Implementation of PDF generation with iText
Rollout and bug fixing
Re-implementation of an existing legacy application
Integration of the new application into the existing IT landscape
Data migration
Lead development, project management, coordination of external service providers
Rollout, bug fixing, and continuous improvement

Jan 2013 - Jun 2013

6 months

Web-based sales system

Financial service provider

Development of modules for retirement planning, finance, goals, and documentation center
Development of custom GUI components
Refactoring, troubleshooting, and bug fixing

Jun 2009 - Dec 2012

3 years 7 months

Claims System

Insurance Company

Coached team members in Java and Swing-based frameworks
Developed components for quick claims capture, claims history, payment processing, and the participation business
Performed refactoring, troubleshooting, and bug fixing

Sep 2008 - May 2009

9 months

Master Data Applications

Logistics Group

Enhanced and fixed bugs in the existing customer profile application
Developed a new Web 2.0 frontend for the Quality Office of the Unique Customer Identification application
Developed a new SOAP web service for the Quality Office web frontend

Dec 2007 - Aug 2008

9 months

Customer Relationship System

Non-Profit Organization

Expanded and revised the client and server components for person merge and resubmission
Developed performance-critical batch jobs
Developed new job export and import components
Created and optimized Hibernate queries
Performed bug fixing and troubleshooting

May 2007 - Nov 2007

7 months

Data Warehouse

Bank

Designed and implemented key and market data import
Implemented supplementary processes and business methods
Enhanced the deletion process for faulty data deliveries
Designed and implemented deployment with Ant
Developed process control with shell scripts
Performed bug fixing and troubleshooting

Oct 2006 - May 2007

8 months

Point of Sale Backend

Trading Company

Developed parameter maintenance for the POS backend system
Created country-specific extensions
Extended existing standard GUI components
Performed bug fixing and troubleshooting

Apr 2006 - Sep 2006

6 months

Customer Relationship System

Non-profit organization

Development of client and server components for addresses, personal files, projects, and person merging
Writing Hibernate queries
Refactoring business object communication and server-side exception handling
Reviewing design documentation and framework components
Bug fixing and troubleshooting

Aug 2005 - Mar 2006

8 months

Credit Counterparty Risk System (Basel II)

Investment Bank

Implementation of logging using Log4J
Connecting Java components to Sybase servers via Hibernate
Design and implementation of the build and deployment process using Apache Ant
Stored procedure programming
Database performance tuning
Korn shell scripting
Overall process control with CA Autosys
Troubleshooting and error debugging

Aug 2002 - Jul 2005

3 years

Composite Policy Management System

Insurance company

Technical redesign of the Swing user interfaces
Design and implementation of the policy management component for industrial insurance
Design and implementation of the building policy management component
Design and implementation of the broker component
Design and implementation of the commission component
Troubleshooting and error debugging

Jan 2002 - Jul 2002

7 months

Corporate Customer Internet Portal

Bank

Redesign of the object model
Design of the persistence architecture in a three-tier environment
Implementation of the persistence layer using WebGain TOPLink
Performance tracing and tuning
Code reviews
JSP development

Apr 2001 - Dec 2001

9 months

Life insurance field service system

Insurance company

Implementation of Riester pension products
Creating automated test routines with QARun
Implementation of client-server communication between Smalltalk and Java using RMI

Jan 2001 - Mar 2001

3 months

Inventory Management System

Media Company

Design and development of the booking component
Object-oriented analysis and design
Data modeling
Implementation
Review of the history concept

Sep 2000 - Dec 2000

4 months

Coaching and Training

Consulting Company

Training in object-oriented analysis and design
Coaching and implementation of an application with modules for commission accounting, employee controlling and liquidity planning

Nov 1999 - Aug 2000

10 months

Composite Policy Administration System

Insurance Company

Design and development of the tariff calculation core
Smalltalk batch programming
Performance tuning
Data model optimization

Nov 1998 - Sep 1999

11 months

Composite Field Service System

Insurance Company

Design and implementation of the selection editor
Design and implementation of the concept for concurrent database access
Performance tuning
Troubleshooting and debugging errors

Jul 1998 - Oct 1998

4 months

Pension Fund Management

Software Vendor

Coaching on PMSmicado frameworks
Technical project management
Main development

Dec 1997 - Jun 1998

7 months

Composite Policy Management System

Insurance company

Extending a persistence framework to access DB2 for MVS through a transaction monitor (IMS)
Validating the frameworks to be used
Designing and overseeing the development process using ENVY

Mar 1997 - Nov 1997

9 months

Framework development

Software vendor

Extending a persistence framework for storage in distributed, heterogeneous database environments

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Insurance (13.5 years), Transportation (7.5 years), Banking and Finance (2 years), Information Technology (1.5 years), Utilities (0.5 years), and Retail (0.5 years).

Insurance

Transportation

Banking and Finance

Information Technology

Utilities

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (27 years), Product Development (8.5 years), Project Management (4.5 years), Sales (0.5 years), Business Intelligence (0.5 years), and Quality Assurance (0.5 years).

Information Technology

Product Development

Project Management

Sales

Business Intelligence

Quality Assurance

Skills

Focus Areas

Software Architecture
Devops
Microservices
Cloud
Bug Debugging
Troubleshooting
Performance Tuning
Connecting Relational Databases
Framework Development
Application Servers
Financial Services (Banks, Insurance)
Logistics
Transportation
Utilities

Programming Languages

Java
Kotlin
Go
Smalltalk
Sql
Javascript
Shell Scripting

Technologies/standards

J2ee
Jpa
Spring
Docker
Kubernetes
Rancher
Openshift
Cloud Foundry
Azure
Sap Btp
Vuejs
Swing
Swt
Wicket
Struts
Vaadin
Html
Ajax
Xml
Rest
Soap
Jaxb
Bpmn
Gitlab Ci/cd

Methods

Ooa
Ood
Uml
Design Patterns
Scrum
Kanban

Tools

Visual Studio Code
Eclipse
Intellij
Visualage For Smalltalk
Ibm Websphere
Payara
Bea Weblogic
Oracle Application Server
Tomcat
Camunda
Apache Camel
Spring
Struts
Pmsmicado Frameworks
Toplink
Hibernate
Optimizeit
Itext
Apache Pdfbox
Mulesoft
Prometheus
Grafana
Jenkins
Nexus
Ant
Gradle
Maven
Rational Rose
Sunit
Junit
Cvs
Subversion
Git
Bitbucket
Continuus

Databases

Oracle
Db2
Sybase
Postgres
Mysql
Ms Sql Server
Firebird
Gemstone
Filemaker
Sap S/4hana

Operating Systems

Windows
Linux
Macos
Os/2

Languages

German

Native

English

Advanced

Education

Diploma in Business Informatics (FH) · Business Informatics

Bank clerk

Profile

Created

November 2024

Last Update

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Ralf based?

Ralf is based in Großhansdorf, Germany.

What languages does Ralf speak?

Ralf speaks the following languages: German (Native), English (Advanced).

How many years of experience does Ralf have?

Ralf has at least 27 years of experience. During this time, Ralf has worked in at least 20 different roles and for 16 different companies. The average length of individual experience is 1 year and 3 months. Note that Ralf may not have shared all experience and actually has more experience.

What roles would Ralf be best suited for?

Based on recent experience, Ralf would be well-suited for roles such as: Implementation of a Middleware Solution, Interface redesign and development as part of an SAP S/4HANA migration, Migration of legacy backend application to an OpenShift cloud environment.

What is Ralf's latest experience?

Ralf's most recent position is Implementation of a Middleware Solution at Utility provider.

What companies has Ralf worked for in recent years?

In recent years, Ralf has worked for Utility provider and Transport company.

Which industries is Ralf most experienced in?

Ralf is most experienced in industries like Insurance, Transportation and Logistics, and Banking and Finance. Ralf also has some experience in Information Technology (IT), Retail, and Government and Public Administration.

Which business areas is Ralf most experienced in?

Ralf is most experienced in business areas like Information Technology (IT), Product Development, and Project Management. Ralf also has some experience in Quality Assurance (QA), Business Intelligence, and Sales.

Which industries has Ralf worked in recently?

Ralf has recently worked in industries like Transportation and Logistics and Utility Services.

Which business areas has Ralf worked in recently?

Ralf has recently worked in business areas like Information Technology (IT).

What is Ralf's education?

Ralf attended education in Business Informatics.

What is the availability of Ralf?

Ralf is immediately available for suitable projects.

What is the rate of Ralf?

Ralf's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.