administrator of Linux and Windows servers and cloud services
Based in: Czechia•Working area: global Status:at your service•Languages: English, Czech
I provide services in the field of professional administration of Linux and Windows servers, administration of cloud services, and more:
Server administration — installation, configuration of services and applications, maintenance, backup, automation; all on Windows and Linux platforms; servers of any purpose (typically web or application servers); remote server management
Network management — design, implementation, optimization, data security and management (incl. large infrastructures)
Analyses — assess condition of your servers and the whole IT / server infrastructure
Project management of any IT-related projects (creation of a new website, website modifications, data migration, server installation and migration…)
Cloud services — configuration and administration of MS Office 365, Google Workspace, etc.
Administrative works — communication with suppliers, domain and DNS administration, documentation creation and management
I have a degree from Nottingham Trent University. My English level is C2, and I have more than 16 years of experience and excellent references.
Expert knowledge of the following areas
Linux — installation, configuration, maintenance and updating, backup, data security, optimization, web services (Apache, Nginx, PHP, MySQL, MariaDB, PostgreSQL, FTP, wiki), file systems (EXT4, XFS and more), iptables, bash, email services, NFS, Samba, rsync, clustering / load balancing, VPN, automation and DevOps, professional experience with most distributions with the focus on Red Hat (CentOS)
Windows — expert knowledge, essentially similar to Linux (installation, configuration, maintenance and updates, backup, firewall and data security, PowerShell, clustering, virtualization), domain services and Active Directory, RDS terminal services, Microsoft SQL, VPN
Hardware — expert knowledge of server hardware and disk arrays (DELL, HP, Fujitsu, etc.), their installation, maintenance, and monitoring
Virtualization — Linux (XenServer, KVM), Windows (Hyper-V) and VMware
Networks and infrastructure — design, installation, configuration, maintenance and monitoring (corporate and intranet networks, switches, routers, VPN tunnels, security and firewall, SDN or Software-Defined Networking) with the focus on Mikrotik network hardware
IBM, UNIX administrator — level 3 technical support, production support, patching, monitoring, active work with the RHEL, SLES, AIX, Solaris (2020 – present)
AT&T, server administrator — level 3 technical support (Linux platform), project implementations, installation, configuration and preparation of new servers on Linux and Windows platforms, daily work with Microsoft products (Windows Server 2016, 2012) and Red Hat Linux (2012–2020)
Motorola Solutions, IT specialist — level 3 technical support, server administration with the focus on Windows Server 2003/2008 and Debian Linux, network infrastructure administration and management, scripting and automation (VBScript, PowerShell) (2007–2012)
I hired Radan back in 2012 when I was creating the Server provisioning team in AT&T Brno.
I chose him because I saw a great enthusiasm and interest in working for AT&T. His past work record was also very solid and he adapted to the company in very short time. He became one of the best system admins of the team and I don't remember any issues with his projects which means that he managed them independently and carefully. Now lots of time have passed, Radan is even more senior and experienced and I think he would be a added value to any new company or team where he would be given opportunity to work.