Senior Java Software Engineer / DevOps Engineer

6/2021 – 9/2021

- Verbesserung der Leistung von Kubernetes-Clustern
- Verbesserung der Gesamtleistung von Microservices mit Istio (circuit breaker,
retries, Timeout)
- Entwurf und Implementierung von Grafana-Boards für die Erfolgsrate von Anfragen
- Optimierung von Microservices auf Basis von Java Spring Boot für Idempotenz
- Refactoring von Java Spring Boot Microservices zur Trennung von Cron-Jobs
von REST Api
- SCRUM-Projektmethodik
- GIT

Git, Java (allg.), Kubernetes, Representational State Transfer (REST), SCRUM

4/2021 – 5/2021

Kubernetes cluster configuration based on Azure Cloud
Azure pipeline design and implementation for security and configuration
Troubleshooting of Calico network policies and firewall issues troubleshooting
Design and implementation of a monitoring solution using Azure Monitoring
Conversion of a standard (legacy) application towards container capability, incl. helm chart implementation
Kubernetes cluster tests
Agile project approach / SCRUM


Docker, Kanban, Kubernetes, Microsoft Azure

11/2020 – 2/2021

- Front-end development of web application using legacy customer implemented tool based on Angular 8 web framework
- Back-end development using Spring Boot in Microservice architecture
- PoC for customer legacy automation implemented
- SCRUM framework

Angular, Java (allg.), SCRUM

7/2020 – 3/2021

- Implementation of User Stories in Cloud Native environment using Kubernetes, Helm, Docker and Prometheus with Grafana as system monitoring tool.
- Technical Support for QA and Production environment
- Gitlab and CI/CD model used for source code management system and
deployment system for QA and Production systems
- DevOps / Agile project methodology

Cloud Computing, Docker, Kubernetes

1/2020 – 6/2020

- Analysis, Design and implementation of Java Microservices on IBM Cloud
Foundry private cloud using Spring Boot framework and related technologies. Involved in internal proposal process for technology / code quality best practice for software development process for the assigned development team. DevOps tasks and implementation based on internal existing templates to automate CI / CD tasks.
- Design and implementation of proof of concepts related to AWS application deployment using Jenkins CI / CD

DevOps, Java (allg.), Jenkins

6/2019 – 12/2019

- Design and implementation of Jenkins CI/CD pipeline for automated build and deploy in IaaS on private cloud environment.

- Implementation of Jenkins pipeline for pilot project and integration with Software Quality tools in SCRUM framework driven team

DevOps (allg.), Apache Maven, Docker, Git, Jenkins, Jira, Kubernetes, OpenShift, Solution Architektur

10/2018 – 5/2019

- As part of the MCE Postpaid project I'm responsible to implement User Sto-

ries using Java with Spring framework. Java Unit tests implemented using Junit and Mockito frameworks.

- Code Quality Management tools applied to the created code using company centralized quality rules

- Custom Maven plugin implementation to modify the build default process and to speed the delivery / deployment process

- Implementation of automated Java source code generation using JcodeModel

- Testing of the implemented stories using SoapUI

- Supporting the Release Management team building Jenkins Pipelines and
 supporting them with best practices.

Oracle Database, DevOps (allg.), Testing (IT), Apache Maven, Docker, Git, Hibernate (Java), J2EE (Java EE), Jenkins, JUnit, SOAP (Simple Object Access Protocol)

12/2016 – 9/2018

- Multiple Software Development / Test Management / DevOps projects in different industries like Banking, Telco, Automotive ( Java 8 )
- DevOps ( CI / CD migration and maintenance ) and Quality Assurance
- Software Development using Spring Boot Framework
- RedHat Openshift (PaaS)
- Apache Kafka
- Jira ( REST Api integration )
- ELK Stack integration
- Oracle Database
- Maven, Git, SVN

Oracle Database, DevOps (allg.), Software Design, Apache Maven, Apache Subversion (SVN), Git, Hibernate (Java), Java (allg.), Jira, Spring

11/2015 – 12/2017

- Architectures, Analysis, Design IoT Application (liquid flow control)
- Hardware selection /-integration (Arduino prototyping board)
- Arduino Board / Odroid Board Software Development
- WebSocket –based communication

Webdesign, Embedded Entwicklung / hardwarenahe Entwicklung, Hibernate (Java), Java (allg.), Internet of Things (IoT), Webservices

8/2013 – 1/2017

- Co-Head Test Management & Head of Test Automation MiFID I/II Project
- Test Planning
- Design, Implementation and Operations of the automated test platform
 for databases
- Rapid Prototyping of Web Application for test automation and test report generation ( HP ALM, HP PPM, HP UFT, Java )
- Implementation external data interfaces for Deutsche Bundesbank and ECB interfaces (MMSR, EMMI)
- Design & Implementation of regression and functional tests for internal DWH’s
- Big Data related testing (function, technical, regression using Informatica Powercenter (incl Big Data Tools), Pentaho Kettle )

Informatica, Testautomatisierung, Testdesign (IT), Testmanagement / Testkoordination (IT), Java (allg.), Representational State Transfer (REST), Web Entwicklung (allg.)