Experienced, senior system administrator and architect. These days I am working for the Nokia R&D at Budapest site as a software architect. In fact, my job is more about system architecture for the development team including DevOps automation, test and build environments in Nokias' OpenStack cloud and in the laboratory (physical systems). I also create software architectures with support of the highly experienced developer team I am working in. I am working with technologies (compute and storage) like XenServer, Synology, FreeNAS and ESXi/vCloud DitLab, Jenkins, InfluxDB, Grafana, MQTT and others.I am designing and operating everything the developer team may need in terms of compilation, testing, automation, archiving, system integration, logical software architecture, etc.I worked with AS/400, DB2, Windows servers and networks, Linux systems, technology reviews and trials for proof of concept for future software development process, communication and collaboration systems, some VoIP, backup systems (Tivoli, Symantec, Bacula), availability and performance monitoring, web- and application servers and their statistics, postgreSQL and MySQL.I have some experience in customizing and testing systems written in different scripting languages (JSP, PHP, Perl)I worked with security systems like firewalls, IDS, antiSPAM, antivirus.I hold a Red Hat Certified Technician, Certified OpenStack Administrator and TOGAF 9 Foundation certificates.I have intermediate knowledge of designing and administering IP networks (attended Cisco networking a switching courses).Specialties: Background system architecture, Operating systems, server virtualization, networks, system monitoring, system security (firewall, IDS, virus), system recovery, database-, application-, web-, and mail servers