05/28/2026 updated

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100 % available

Senior DevOps / Platform Engineer for Enterprise Production Systems

Kraków, Poland
Only remote
AGH University of Science and Technology, Field Of Study Computer Science in Control and Managment
Kraków, Poland
Only remote
AGH University of Science and Technology, Field Of Study Computer Science in Control and Managment

Profile attachments

Rafal_Siwik_CV_en.pdf

About me

Senior DevOps & Kubernetes Engineer with 15+ years of experience in enterprise production systems. Specialized in CI/CD, Helm, Docker, automation, troubleshooting, and reliability engineering for international clients and cloud-native environments. https://www.linkedin.com/in/rafal-siwik/

Java (Programming Language)Agile MethodologyDevOpsReliability EngineeringSQL DatabasesSoftware TroubleshootingGitRestful ApiDocker
Kubernetes,Docker,Helm,CI/CD,GitHub Actions,DevOps,Linux,Ansible,Production Deployments,Troubleshooting,Cloud-native Architecture,Infrastructure Automation,Reliability Engineering,Observability,ELK, Stack,Grafana,Java,Spring Framework,SQL,REST APIs,Git,Agile / Scrum.

Experience

Professional experience10+ years
Freelancer since2020

Languages

GermanGoodEnglishGoodPolishFluentRussianGood

Project history

Full-Stack Developer & System Maintainer

Virtual Identity (Germany)

Internet & IT

50-250 team member

-Transitioned from DevOps into a full-stack role, expanding responsibilities across the entire
application stack.
-Maintained and enhanced features for both front-end and back-end systems, ensuring high
stability and performance.
-Specialized in troubleshooting and resolving complex issues, improving overall system
reliability and user experience.
-Acted as the main technical contact for the client: gathered requirements, triaged issues, and
provided technical support.
-Optimized deployment workflows to align with DevOps best practices and seamless CI/CD
processes.

DevOps & Deployment Engineer

Virtual Identity (Germany)

Internet & IT

50-250 team member

-Responsible for production blue-green deployments for Infineon Technologies.
-Utilized technologies: GitHub Actions, CI/CD, Helm, Ansible, Kubernetes, Docker, ELK,
Grafana, Solr, Linux Shell.
-Inter-team coordination (daily builds, patches, vulnerability management).

Consultant, Project Manager

Cracow City Hall

Government and Public Services

>10.000 team member

Supervising a group of developers programming public services in Cracow City Hall Technology: Activiti, Alfresco, JAVA-RX, JAVA-WS, Spring, Hibernate, JAXB, ESB (Servicemix, Camel), AngularJS, Kubernetes.

Consultant, Java Developer

Advisory Group TEST Human Resources

Marketing, PR and design

10-50 team member

The project manager, and responsible for the remote technical and development support service. Developed, as a member of a five person team, a custom-made application to report results of data analysis. Utilizing the technologies of Java, JavaScript, BIRT.

Java Developer, Cloud Developer

METADAT IT-Beratungs- und Entwicklungs GmbH

Internet & IT

< 10 team member

Developed a network attached storage, utilizing the technologies of JAVA, Cloud computing, REST.

Java Developer, Consultant

The Banialuka Puppet Theater

Government and Public Services

10-50 team member

Developed, as a member of a five person team, system for cataloguing and management of distributed collections. Utilizing the technologies of Java, OSGI, EMF, CDO, RAP.

Project Manager

ADAGP

Government and Public Services

250-500 team member

Responsible for the remote technical and development support service. Termination of long-term business partnership with ADAGP.

Java Developer

Videomuseum

Government and Public Services

50-250 team member

Development of the MultiArch NG/GCOLL-2 system for cataloguing and management of distributed collections. The system will manage every aspect of information of all modern and contemporary art collections which belongs to the French state - Java, XML technology-based systems.

Java Developer

ADAGP

Government and Public Services

250-500 team member

Developed, as a member of a ten person team, a J2EE application for a French collective administration organization for the rights of visual artists.:
03.2001-12.2003 designed and developed a remote client application (Java, Swing, RMI, JNDI),
12.2002- 05.2004 developed business logic on the BEA Weblogic Server application server – Java, EJB technology-based systems,

Software Engineer

Elsevier

Government and Public Services

500-1000 team member

Built dynamic web sites based on SGML - a world leading, multi-media publisher of scientific literature, utilizing the various technologies of HTML, SGML, SGML-parsers and the Netscape Web Server

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