Stephan Rudolph
ICT Architect/Programmer, DevOps, Design, Implementation, Test, Documentation
Experience
ICT Architect/Programmer, DevOps, Design, Implementation, Test, Documentation
PostFinance AG
Deployment of a Customer Engagement & Loyalty solution in the cloud (AWS) and integration into the existing on-premise system landscape.
Technology: AWS EKS - Kubernetes, Helm, AWS EC2, AWS S3, PostgreSQL, SAP GLIF, RabbitMQ, Git, GitLab, ArgoCD, GitOps, CI/CD, Terraform, HashiCorp Vault, JFrog Artifactory, Splunk, Prometheus, Grafana, Linux, bash, IntelliJ, draw.io, Confluence
Result: Deployment of a cross-product bonus program for retail banking, embedded into online and mobile banking; actual and emotional customer engagement; improved profitability and loyalty; support for cross- and upselling; long-term improvement in customer satisfaction and positive impact on the company image.
DevOps, Design, Implementation, Testing, Documentation
SV Informatik GmbH
Automated, parameterized provisioning of Oracle Fusion Middleware environments.
Technology: Oracle SOA Suite 12.2.1.4, Oracle FMW Infrastructure 12.2.1.4, Oracle Data Integrator 12.2.1.4, Oracle HTTP Server 12.2.1.4, Oracle Enterprise Database 12.2.0.1, HashiCorp Vault, WLST (IaC), Python, Linux, bash, IaC, DevOps, CI/CD, IntelliJ, Git, draw.io, Confluence
Result: The solution enables automated, parameterized provisioning of Oracle Fusion Middleware environments of various kinds (WebLogic, Data Integrator, Service Bus, SOA Suite) for different applications.
Architect/Programmer, Design, Implementation, Testing, Documentation
Rhätische Bahn AG
Implementation of interfaces between SAP S/4HANA and various legacy systems.
Technology: Java SE/EE, Quarkus, Apache Camel, Apache ActiveMQ, Red Hat OpenShift/Kubernetes, SAP IDoc, JMS, REST, SOAP, SoapUI, CI/CD, Bitbucket, Git, Maven, Bamboo, JUnit, Mockito, WireMock, Confluence, Jira (SCRUM), IntelliJ, draw.io
Result: Interfaces between SAP S/4HANA and various legacy systems based on Java SE/EE, Quarkus, Apache Camel and Red Hat OpenShift/Kubernetes.
Senior Software Engineer - Design, Implementation, Testing, Documentation
EnBW Energie Baden-Württemberg AG
Integration of a Customer Relationship Management (CRM) system in the cloud into the existing system landscape (cloud and on-premise).
Technology: Java SE/EE, AWS CloudFormation, Terraform, AWS SAM, CI/CD, AWS Lambda, Amazon DynamoDB, Amazon S3, Amazon API Gateway, Amazon Cognito, Amazon CloudWatch, AWS Step Functions, Amazon EventBridge, AWS Secrets Manager, Amazon Route 53, REST, SoapUI, Gradle, JUnit, Mockito, WireMock, Confluence, Jira (SCRUM), IntelliJ
Result: Scalable and fault-tolerant microservices in the AWS cloud.
AWS Select Partner - Design, Implementation, Testing, Documentation
Amazon Partner Network
Development of two offer packages for "Landing Zone for AWS - Security Governance at Scale - Quick Start - Consulting and Implementation".
Technology: AWS Control Tower, AWS Organizations, AWS Service Catalog, AWS Single Sign-on, AWS Config, AWS CloudFormation, Amazon CloudWatch, AWS CloudTrail, AWS Identity and Access Management, Amazon Simple Storage Service, Amazon Simple Notification Service, AWS Lambda, AWS Step Functions, AWS CodeCommit, AWS CodePipeline, Amazon Simple Queue Service, AWS Key Management Service
Result: Two service packages for a practical entry into a secure, scalable AWS environment with multiple accounts; a foundation for an AWS landing zone using a ready-made PoC concept and a portfolio of various extensions.
Design, Implementation, Testing, Documentation, DevOps
SV Informatik GmbH
Automated, parameterized provisioning of Oracle SOA Suite 12.2.1.3 environments.
Technology: Oracle SOA Suite 12.2.1.3, Oracle FMW Infrastructure 12.2.1.3, Oracle HTTP Server 12.2.1.3, Oracle Enterprise Database 12.2.0.1, WLST (IaC), Python, Linux, bash, IaC, DevOps, CI/CD, Git, Jira (SCRUM), Confluence
Result: Solution enables automated, parameterized provisioning of complete Oracle SOA Suite environments for various applications.
ICT Architect, Design, Implementation, Documentation, DevOps
Deutsche Bahn AG
Migration of highly available Oracle Service Bus environments (Dev, Test, Acceptance, Production) from version 11.1.1.9 on-premises to version 12.2.1.3 in the AWS Cloud, automated, repeatable and versioned.
Technology: Oracle Service Bus 12.2.1.3, WebLogic Server 12.2.1.3, JMS Messaging, SaltStack, WLST (IaC), Python, Linux, bash, GitLab, IaC, DevOps, CI/CD, SOAP/REST, Jira (SCRUM), Confluence, AWS CloudFormation, AWS IAM, Amazon S3, Amazon EC2, Amazon EBS, Amazon EFS, Amazon Data Lifecycle Manager, Amazon RDS, Prometheus, ELK
Result: Automated, repeatable and versioned migration of Oracle Service Bus environments; foundation for a future CI/CD deployment pipeline.
Design, Installation, Configuration, Testing, Documentation, Training
Centris AG
Provisioning of a highly available Oracle Enterprise Manager Cloud Control environment (MAA Level 3) for monitoring and life-cycle management of more than 10,000 targets.
Technology: Oracle Enterprise Manager Cloud Control 13c Release 2, EMCLI, Python, Linux, bash, SSL/TLS, IaC, DevOps, CI/CD
Result: Company-wide monitoring and life-cycle management of applications, services, Oracle Fusion Middleware and databases, as well as the underlying server systems.
ICT Architect, Design, Implementation, Testing, Documentation
Deutsche Bahn AG
Proof of concept for automated provisioning of Oracle Service Bus 12.2.1.3 environments.
Technology: Oracle Service Bus 12.2.1.3, Oracle FMW Infrastructure 12.2.1.3, Oracle HTTP Server 12.2.1.3, Oracle Enterprise Database 12.2.0.1, WLST (IaC), Python, Linux, bash, IaC, DevOps, CI/CD, Git, SOAP/REST, Jira (SCRUM), Confluence
Result: Functional proof and documentation of all steps for integration and provisioning as a foundation for automation.
ICT Architect, Implementation, Testing, Documentation, IaC
Deutsche Bahn AG
Company-wide, automated, parameterized provisioning of Oracle Service Bus 12c and Oracle WebLogic Server 12c installations and domains using SaltStack.
Technology: Oracle Service Bus 12.2.1.2, Oracle WebLogic Server 12.2.1.2, Apache ZooKeeper, Apache Kafka 2.11, SOAP/REST, Apache SaltStack, WLST (IaC), Python, Linux, bash
Result: Fast, environment-specific, parameterized provisioning of complex SOA topologies and significant efficiency and quality improvements.
ICT Architect, Design, Implementation, Documentation, Testing
Deutsche Bahn AG
PoC for integrating Oracle Service Bus with SAP R/3®.
Technology: Oracle Service Bus 12.2.1.2, SAP R/3®
Outcome: Functional proof and documentation of all steps for integration and deployment as the basis for automation.
Design, Implementation, Testing, Documentation
Centris AG
PoC to demonstrate the functionalities of Oracle Fusion Middleware OEMCC: Multiple Domain Discovery; Compare Configurations; Provision Home and Domains; Scale Up/Out Clusters; Deploy/Undeploy Java Apps; Credential Management; Configure Domain, Cluster, Server, Machine.
Implementation with GUI and EMCLI based on scenarios: User Defined Deployment Procedures (JDK); Fusion Middleware Profile - Oracle Home/WLS Domain; Parameterization of Deployment Procedures; Deploying/Redeploying/Undeploying Java EE Applications; Scale Up/Scale Out WLS Clusters.
Technology: OEMCC 12.1.0.4, ODB 11.2.0.4, WLS 12.1.1.0.0, adcubum SYRIUS, Chef, EMCLI, Python, Linux, bash, Confluence
Outcome: Proof of feasibility, reproducibility, and stability.
ICT Architect, Design, Implementation, Documentation, Testing
Deutsche Bahn AG
Design and implementation of a test environment and testing of approximately 30 EAI message exchange patterns (JMS, SOAP/HTTP, MQ – one-way, request/response sync/async, publish/subscribe, claim check) regarding transactional behavior (XA) in simulated failure scenarios.
Technology: Oracle Service Bus 12c, Oracle WebLogic Server 12c, WLST (IaC), Python, Java SE/EE, JMS, SOAP/REST, MQ 7.5, XA, HA
Outcome: Proof and conditions for fulfilling all requirements for transaction safety and high availability of the SOA infrastructure.
ICT Architect, Design, Documentation, Testing
Deutsche Bahn AG
Development of guidelines for component design for the Oracle Service Bus; design and execution of test cases to ensure high availability of a messaging infrastructure based on Oracle WebLogic Server.
Technology: Oracle Service Bus 11g, Oracle WebLogic Server 12c, JMS, high availability, load tests, The Grinder
Outcome: Unified design for quality assurance, reusability, scalability, and maintainability; proof of high availability of the messaging infrastructure.
Design, Implementation, Documentation, Testing
Centris AG
Automated declaration and configuration of additional parameters in the JSR-88 deployment plan for different environments.
Technology: Oracle WebLogic Server, JSR-88, XML, XSL
Outcome: Process enables automated configuration without modifying the deployment descriptors.
Design
Baloise Versicherung AG
Architecture for handling conjunctive dependencies of asynchronous processes through programmatic replacement and use of the JMS unit-of-work functionality of the Oracle WebLogic Server.
Technology: Oracle WebLogic Server Platform, JMS
Result: Savings and simplification in processing asynchronous processes.
Design, installation, configuration, and integration
In-house
Private Cloud: Network Attached Storage, Collaboration Server, Application Server, VPN Access, Replication, Failover, Disaster Recovery.
Technology: IBM iDataplex, VMware vSphere, Red Hat Enterprise Linux, illumos ZFS, VMware Zimbra Collaboration Server, Oracle GlassFish Server
Result: Flexible, location-independent infrastructure for communication, administration, development, integration, testing, and production.
Design, installation, and integration
Federal Office for Information Technology and Telecommunications BIT
Operations concept and provisioning of the infrastructure for application performance management.
Technology: Dynatrace Diagnostics 3.1, Microsoft SQL Server
Result: Provision of the Dynatrace Diagnostics server for integration, acceptance, and production, and delivery of the operations concept.
Coordination, facilitation, and delivery
Federal Office for Information Technology and Telecommunications BIT
Delivery of two 4-day basic Dynatrace Diagnostics courses for 17 participants from operations, integration, testing, and development.
Technology: Dynatrace Diagnostics 2.6
Result: Provided basic knowledge for using Dynatrace Diagnostics.
Coordination, facilitation, and support
Federal Office for Information Technology and Telecommunications BIT
Error analysis in a production system to identify sporadically long response times through a proof of concept.
Technology: Dynatrace Diagnostics 2.6
Result: Precise and reproducible identification of the root causes without interrupting operations; reduced effort to 10%; targeted elimination of the causes.
Design, Implementation, Integration, Testing, Documentation
Federal Office for Information Technology and Telecommunications (BIT)
Operating concept and automated provisioning of 150 instances of the Oracle Weblogic Server Platform, considering high availability requirements.
Technology: Oracle Weblogic Server Platform, Oracle Weblogic Node Manager, VMWare ESXi, SuSE Linux Enterprise Server, WLST (IaC), Python, Linux, bash
Result: Reduced provisioning effort from several days to 30 minutes; efficient SSH and SSL key trust management.
Consulting and Design, Development
BEKB | BCBE
Migration of the BEA Weblogic Server Platform from 8.1 to 9.x and J2SE 1.4 to 5.0; automation of domain configuration and deployment provisioning.
Technology: BEA Weblogic Server Cluster 8.x/9.x, J2SE 1.4/5.0, Java EE 1.3/1.4, Oracle RDBMS, Sun Solaris, Red Hat Enterprise Linux, WLST (IaC), Python, Linux, bash
Result: Successful, on-time migration of all applications and the platform.
Analysis, Design
Bank Vontobel AG
High-level design for the enterprise-wide consolidation of J2EE application server technology usage.
Technology: J2SE 1.4, J2EE 1.3, Sun Solaris
Result: Complete, on-time delivery of all agreed artifacts.
Analysis, Installation, Design, Implementation, Support
Deutsche Telekom MMS GmbH
Migration of the BEA Weblogic Server Platform from 6.1 to 8.1; optimization potential analysis; SNMP system management; JVM GC optimization; troubleshooting.
Technology: J2SE 1.4, J2EE 1.3, BEA Weblogic Server Cluster 6.1/8.1, Sun Solaris 9.0, HP LoadRunner
Result: Complete, on-time delivery of all agreed artifacts.
Instructional Design and Delivery
Deutsche Telekom MMS GmbH
Training on BEA Weblogic Server Administration (2×4 days) to prepare for the BEA 8.1 Certified Administrator exam.
Technology: J2SE 1.4, J2EE 1.3, BEA Weblogic Server Cluster 8.1, Sun Solaris 9.0
Result: Complete, on-time delivery of all agreed artifacts.
Web Services Implementation, Installation, Configuration, Consulting
Deutsche Post AG
Implemented web services for a B2C application; installed and configured a BEA Weblogic Server cluster; provided technology, architecture, and design consulting.
Technology: J2SE 1.4, J2EE 1.3, SQL, JAX-RPC, SOAP/REST, Design Patterns, BEA Weblogic Server Cluster 8.1, Nodemanager, Oracle RDBMS, Sun Solaris 9.0
Outcome: Complete and on-time delivery of all agreed artifacts.
Analysis and Documentation
Polish Ministry of Agriculture
Error analysis in a production system (4,000 users) to identify memory growth and functional limitations.
Technology: J2SE 1.4, J2EE 1.3, BEA Weblogic Server Platform 7.0, Oracle Database 9i, Wilytech Introscope 5.0
Outcome: Complete and on-time delivery of all agreed artifacts.
Installation, Configuration, and Documentation
Sun Microsystems Inc.
Configured high-availability J2EE application server clusters for a data center (integration, testing, production).
Technology: BEA Weblogic Server Platform 8.1, Nodemanager, Apache Webserver 2.0, Sun Solaris 9.0
Outcome: Complete and on-time delivery of all agreed artifacts.
Analysis and Optimization
Česká spořitelna a.s.
Error analysis and optimization of a production system (700,000 users): memory leak removal; JVM/GC tuning; improved response times by 10% without downtime.
Technology: J2SE 1.3, J2EE 1.2, BEA Weblogic Server 6.1, Oracle Database 9i, Wilytech Introscope 5.0, HPjtune, HPjmeter
Outcome: Error-free application and improved performance.
Instructional Design and Delivery
DFS Deutsche Flugsicherung GmbH
J2EE technology seminar: presentations, discussions, and hands-on exercises on J2EE basics, advanced programming, Webservices, SOA, SOAP, WSDL, JAX-RPC and BEA Weblogic Server Platform administration.
Technology: J2SE 1.4, J2EE 1.3, Webservices, BEA Weblogic Server Platform 8.1
Outcome: Complete and on-time delivery of all agreed artifacts.
Enterprise Service Bus Implementation and Integration
Deutsche Post AG
Implemented an Enterprise Service Bus based on the BEA WebLogic Server platform; integrated IBM MQ-Series with BEA WebLogic.
Technology: J2EE 1.3, JAAS, LDAP, BEA WebLogic Server Platform 7.0, IBM MQ-Series 5.1
Result: complete and timely delivery of all agreed artifacts.
Design and Implementation
Droege Group AG
Implemented essential components of a Knowledge Management System: import/export of legacy flat files; dynamic transformation and formatting of XML report data into PDF; data exchange between frontend and CMS.
Technology: J2SE 1.3, HTTP, Servlet, JAXP, XML, XSLT, XSL-FO, PDF, SVG, Oracle Database 9i
Result: complete and timely delivery of all agreed artifacts.
Languages
Education
University of Applied Sciences for Scientific Instrumentation "Carl Zeiss"
Diploma Engineer (FH) · Precision Engineering/Electronics · Jena, Germany
Certifications & licenses
AWS Certified Advanced Networking – Specialty
Certified SAFe® 6 Agilist
AWS Certified DevOps Engineer – Professional
HashiCorp Certified Terraform Associate
AWS Certified: SAP on AWS – Specialty
AWS Certified Developer – Associate
AWS Certified Solutions Architect – Professional
AWS Certified Cloud Practitioner
AWS Certified Solutions Architect – Associate
Oracle WebLogic Server 12c Certified Implementation Specialist
Certificate BEA Weblogic Adminstrator
Sun Certified Enterprise Architect for Java
Certificate BEA Weblogic Developer
Profile
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