Proactively monitored and administered production and development servers remotely and at the data center. Provided 24/7 on call availability by means of cell phone, instant messaging and e-mail. Improved system security by limiting users using unjustified root access. Built optimized and patched linux kernels and mission-critical daemons with CPU optimizations to provide functionality not available in stock kernels and software, performance and reliability.Installed monitoring software, which… Show more Proactively monitored and administered production and development servers remotely and at the data center. Provided 24/7 on call availability by means of cell phone, instant messaging and e-mail. Improved system security by limiting users using unjustified root access. Built optimized and patched linux kernels and mission-critical daemons with CPU optimizations to provide functionality not available in stock kernels and software, performance and reliability.Installed monitoring software, which allows performing statistical analysis of the cluster load up to one year long. Designed and implemented backup procedures. Actively participated in disaster planning. Researched new software and evaluated new hardware prior to using it in production mode. Negotiated with vendors in cases of hardware failures or software issues. Besides systems administration, was the point of technical contact for the developers and office PC support technician. Show less

Configured and troubleshooted hundreds of Linux and windows clusters, servers and workstations. Reviewed software installation procedures. Implemented new procedure for drive copying, dramatically reducing the time to create new system disks. Maintained and supported Linux prototype disks, including security updates, bug fixes, and feature enhancements. Decreased problem solving times by evaluating new Linux kernels and applying necessary patches in advance. Ported applications. Performed… Show more Configured and troubleshooted hundreds of Linux and windows clusters, servers and workstations. Reviewed software installation procedures. Implemented new procedure for drive copying, dramatically reducing the time to create new system disks. Maintained and supported Linux prototype disks, including security updates, bug fixes, and feature enhancements. Decreased problem solving times by evaluating new Linux kernels and applying necessary patches in advance. Ported applications. Performed onsite installations at client sites . Developed firewall to allow customers to connect to servers remotely with full root access in isolation from company's networking Show less

Ability to create and deliver solutions tied to business growth, organizational development and systems/network optimization. Skilled problem identifier and troubleshooter comfortable managing systems, projects and teams in a range of IT environments