09/06/2022 updated


100 % available
DevOps Engineer / IT System Administrator
Plagiari, Greece
Worldwide
Electronic EngineerFor more than 20 Years, right after my studies in electronic engineering at FH Bochum, I worked as a developer, system administrator and tester in various Companies and Projects. It started 1999 by building a php based wedding portal in germany with my own firm. During the implementation I moved to Thessaloniki (Greece) and managed further developements, administration and customer service remote (Homeoffice in the earliest stage). In 2002 I managed for over 3 years the heterogene IT-Infrastruktur (Windows, Linux, Publishing-Applications) of a local newspaper in Thessaloniki. I changed in 2004 to be an employee at two software development companies. Focus of my work in the first were installation, administration and testing of java-based DMS aside with second- and third-level support for the international customers of the firm. The second firm had a delphi-based ERP-System with customers in swiss. During that time I managed to increase my database-skills and networking, infrastrutur skills at high level. In 2007 I started to build a new webhosting company in Greece (multihosting.gr). I was responsible for the IT Infrastructur, Virtualization-technology and administration. We had about 2500 customers at that time. We rapidly claimed to be one of the 5 biggest IT-Companies in Greece and the company exists until today. In search for new challenges, I started my career as a DevOps Engineer and IT System Administrator (Freelancer) in 2011 and worked in many different projects for large german companies like Deutsche Postbank AG, Deutsche Bank AG, ING-Diba-AG, Claas Agro-Systems/365farmnet, Financial Information Technology Services and Deutsche Bahn (DB Systel). During that time I gained the experience in Big-Data-management, cloud-computing and the importent field of data-security. I've learned to work ITIL-aligned, with a main focus on fast but also compliant solutions in terms of the european governments.
Experience
Professional experience10+ years
Languages
GermanNative speakerEnglishFluentGreekFluent
Project history
- Optimierung, Wartung und Pflege der Secure-Cloud-Infrastruktur für die angeschlossenen Landesbanken und Sparkassen
- Implementierung und Konfiguration von Applikations-Containern
- Log-Management, Normalisierung, Konsolidierung, Datastream SIEM
- Ressource-Monitoring
- Multi-Level-Support bei:
- Konfigurations-, Deployment- und Release-Management
- Störungs- und Eskalations-Management
- Netzwerk/Firewall/DNS
- Implementierung von Software
- Prozessautomatisierung und Prozessoptimierung
- Dokumentation, Knowledge-Management
- Optimierung, Wartung und Pflege der Cloud Infrastruktur AWS für die Kunden der DB Energie
- Auf- und Abbau von EC2/RDS Instanzen (Manuell, Ansible AWX, Cloudformation)
- Patchmanagement, Fehleranalyse, Stabilisierung.
- Administration Linux/Windows
- Incident-, Change-Management (ITSM, Jira)
- Automatisierung (Git-Pipelines, SSM, Cloudformation)
- Scripting
- Prozessautomatisierung und Prozessoptimierung
- Dokumentation, Knowledge-Management
- Optimierung, Wartung und Pflege von Bankapplikationen (Multikanal-/Multitier-Komponenten)
- Automatisierte Deployments über den Changemanagement-Prozess (Dev, Test, Int, Prod)
- Evaluierung, Implemetation Cloud-Computing/Private-Cloud
- AWS, MS Azure und GCP in Test und Vergleich
- IaaS, Paas, SaaS, FaaS: Exemplarischer Aufbau, Test, POC
- Unified Data Streaming/Analytics heterogene Datapools, POC
- Aufbau der Privat-Cloud mit OpenShift in den Rechenzentren
- Umsetzung von Compliance-Anforderungen der BaFin
- OAM (Operations Access Management)
- Kontrollierte Vergabe von Zugriffs-Rechten im Betrieb
- Etablieren der Schnittstellen und Workflows
- Unterstützung bei Code Compare
- Batch-Verarbeitung, Erstellung und Pflege
- Log-Management und Analyse
- Ressourcen-Monitoring
- Fraud Detection und Prevention
- Incident-, Eskalations- und Changemanagement
- Dokumentation, Knowledge-Management