Position: Technical support engineer
Category: Sysadmin
English level: intermediate
Years of experience: 0

Developed (in C and Python) a CLI tool to extract parts from huge log files that are compressed by bzip2. It allowed decreasing engineers' time for searching parts of log files significantly. Also, it helped to reduce the needed disk space and CPU resources greatly.
Oct 2011 – Oct 2018
“PortaOne”, Inc., Kiev.
Technical Support Engineer
Provided technical support for company’s products (VoIP Softswitch and Billing) and related systems, delivered over by email, chat, phone communications, remote access and physical presence to customers worldwide.
Troubleshoot system malfunctions by finding and fixing the root cause of problems.
Conduct conference calls with customers. 
Plan and perform customers’ installations updates.

Aug 2009 — Jul 2011
“RedTram”, Kiev. News Search Engine
UNIX System Administrator
systems monitoring
software installation
update and support OS and software
databases backup, restore and replication
setup high-availabitlity web clusters (nginx as frontend, apache with php as backend)
write shell scripts to automate software installation

Mar 2008 — May 2009
“Innovative Marketing Ukraine”, Kiev
Duty UNIX Administrator
support high-availability web systems
monitoring systems' health
fix malfunctions
users support (access management, setup services)