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Work Background
Atos IT Solutions and Services A/SSystem Manager
Apr. 2014 - Jul. 2025Timisoara• Technical Lead Citrix XenServer Administrator (December 2018 – July 2025): o Designed and managed XenServer environments across 600+ physical hosts, ensuring high vailability and performance for banking, finance, governmental, and IT clients. o Automated key processes using over 50 custom Bash and PowerShell scripts, significantly reducing operational costs and manual workload. o Led root cause analysis and developed proactive solutions, minimizing downtime and enhancing system reliability. o Provided technical leadership and mentoring to a team of over 10 junior administrators, accelerating their professional growth and competency in virtualization technologies. • VMware ESXi Administrator (June 2015 – December 2018): o Administered VMware ESXi environments, including virtual network setup, storage integration with NetApp, and P2V/V2V migrations for major clients. o Played a key role in performance tuning, resource allocation, and ensuring seamless operations within virtualized infrastructures. • Security & Browser Configuration Specialist (April 2014 – June 2015): o Implemented and managed browser security configurations for Siemens' extensive infrastructure, covering over 200,000 workstations.
AtosSystem Manager
Apr. 2014Timisoaranov 2018 - prezent citrix administrator (XEN Server/Hypervisor)<br>administrating over 600 physical hosts for various clients from diverse industry (bank, finance, governmental, IT). managed and designed the XEN Server/Hypervisor environment, route cause analyze, process automation (over 50 bash sell and power shell scripts), proactive proposal (identify required cost reduction activities and propose cut time duties through the automation process and the workflow). mentoring for over 10 colleagues on OS's and hardware administration. i took on new projects and documented them in such a way that the new colleagues coming from other technologies could become operational in the shortest possible time.<br><br>jul 2015 - nov 2018 virtualization engineer (VMware)<br>administrated 500+ physical hosts and over 10.000 virtual machines for various clients <br><br>apr 2014 - jul 2015 browser security engineer<br>established GPO rights for IE and Chrome
OSF Global ServicesSystem Administrator
Apr. 2012 - Mar. 2014Brasov County, Romania• Managed and optimized virtualization environments using VMware ESX and vSphere, focusing on cloud integration and infrastructure automation. • Streamlined administrative tasks through advanced scripting in PowerShell and Bash, enhancing system efficiency and reliability. • Administered both Windows and Linux servers, providing comprehensive support for business critical applications and services.
OSF Global Services
Apr. 2012 - Mar. 2014Brasov County, RomaniaWindows administrative tasks: AD, GPO, Firewall, FTP, IIS, VPN, Power Shell, monitoring, backups, etc.;<br>Linux administrative tasks: DHCP, iptables, LDAP, bash shell, VPN, backups, monitoring, etc.; <br>VMware administrative tasks: ESX, vSphere, VDC, vConverter, Power CLI; <br>Virtual Clouds (Navisite, vCloud Express) administrative tasks: VMs, Firewall, NAT, Loadbalancer, Public/Private IPs.
Freelance Computer ServicesSystem Administrator
Oct. 2011 - Oct. 2025Configure Windows and Linux servers
Create bash and power shell scripts
DecsoftSystem Administrator
Jun. 2011 - Oct. 2011Braşov, Braşov, Romania• Installed, configured, and maintained VMware-based virtual machines and servers, ensuring optimal performance and security. • Developed scripts for automation and maintenance tasks, contributing to more efficient system management.
Decsoft
Jun. 2011 - Oct. 2011
SinoptixSystem Administrator
Jul. 2009 - Jun. 2011Braşov, Braşov, Romania• Led the management of Linux and Windows servers, with a focus on virtualization, data backup, and network security. • Oversaw the administration of development tools and environments, including GIT, SVN, and bug tracking systems, ensuring robust support for software development teams.
SINOPTIX SRL, Brasov
Jul. 2009 - Jun. 2011IT Dep Asistent, METRO CASH & CARRY ROMANIA SRL, Brasov
METRO RomaniaInformation Technology Assistant
Mar. 2007 - Feb. 2009Braşov, Braşov, RomaniaProvided comprehensive IT support, including Oracle SQL scripting, AD/DC management, and network maintenance, contributing to the smooth operation of business systems.
Metro Cash and Carry
Mar. 2007 - Feb. 2009
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