Position: Senior System administrator
Category: Sysadmin
English level: upper
Years of experience: 11

in early 2000's provided solutions to test hardware to Computer selling companies. 
in different companies provided solutions for VPN. Site to Site VPN. 
Provided unattended Remote Desktop Support  solution big company (Azersun) which helped to reduce commuting of Helpdesk to users. 

Provided in 2011 Fail tolerance and High availability Solution to government organization for their APP database. Based on OpenSource iSCSI solution and virtualization. MSSQL Cluster. till this day it works. 

From zero built almost perfect (small budget) structure for Medical university. in short time scratched undocumented network, based on Cisco switches, understanding how it works and made documentation for it. And improved with granular change or small changes to make network work as Swiss clock. 

in time of Need in Pandemic, provided VPN to work from home, made solution for education organization for distant education.
In more than 10 years of Experience in IT field, I can provide/maintenance solutions based on openSource and commercial software. And also hardware solutions mostly optimal ones based on needs of customer. I will not advice 100K $ solution if 20k$ solution if more than enough for needs of customer.

My work experience Providing VPN site to site to companies based on openVPN, Kerio Control, Microsoft ISA, and mostly almost any kind of VPN technologies (IPSEC, Ikep etc)
Designing infrastructure of company IT assets, Providing if needed Mail Server, File Server Personal Cloud based on opensource technologies (nextcloud, Owncloud), Documenting Current Network structure or when creating one Create firstly 
Design and documentation how it will work, then do it. 

Worked with dozens of cisco, Hp switches. Configured from VLAN to granular configuration (mostly switching). Can work with almost any kind managable switches.(should have some kind of manual)  

Have MCSE: Cloud Platform and Infrastructure, and MCSE: Server Infrastructure cettificates. 

Worked with Microsoft Products, provided solutions based on MS software (AD,DHCP,DNS, DFS, WDS, WSUS, CA). 
Worked with vmware ESXI and Hyper-V (self installed and self maintenanced) vSphere 5.5, 7. Can work with most of Hypervisors and their centralized Management console (may need read some manual if needed) But mostly their logical working procedure are same. 

any other work experience are on CV.
The job of Helpdesk. Or helping helpdesk with their job repeatedly.