Aleksey Tsalolikhin has been a UNIX/Linux system administrator for 20 years,
starting at EarthLink in the mid-nineties. Aleksey’s mission is increasing
efficiency, productivity and quality of life of engineers through world-class
training in excellent technologies. Aleksey is the organizer of the Los Angeles
chapter of the League of Professional System Administrators and is a member the
UNIX Users Association of Southern California.
Aleksey’s firm, Vertical Sysadmin Inc., has trained staff from world-class
organizations like AT&T, Samsung, Chevron, LinkedIn, VISA, Intel, Lawrence
Berkeley National Laboratory, Los Alamos National Laboratory, Deluxe
Technicolor and many others.
We present materials so that students deeply understand them, and real learning
occurs. Students have said this type of training was the best training they’ve
We are an authorized GitLab training partner.