Aleksandr Donskoy

Aleksandr Donskoy

Saint Petersburg, Russia
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Aleksandr Donskoy

Aleksandr Donskoy

Saint Petersburg, Russia
Member since June 11, 2015
Aleksandr is an accomplished systems administrator with 9+ years of experience managing server infrastructures and data centers. He is professional, with strengths in effectively planning, setting up, and tuning IT infrastructures to consistently achieve high availability and performance. He has the ability to adapt his communication style to diverse audiences including both business and technical.
Aleksandr is now available for hire
Portfolio
Experience
  • Linux, 9 years
  • Network programming, 7 years
  • Apache, 7 years
  • FreeBSD, 7 years
  • MySQL, 7 years
  • Zabbix, 5 years
  • Python, 3 years
  • Puppet.js, 2 years
Saint Petersburg, Russia
Availability
Part-time
Preferred Environment
Linux
The most amazing...
...thing I've designed and implemented is an ISP infrastructure for a regional network for 40,000 subscribers. It has more than 3,000 switches and 100 servers.
Employment
  • System Administrator
    Freelance
    2014 - PRESENT
    • Designed and implemented infrastructure for HA Web service.
    • Designed and implemented infrastructure for a web development company.
    • Implemented a backup strategy with Bacula software.
    • Fixed many performance and security problems.
    Technologies: Linux, Web services, Load balancers, Virtualization, etc.
  • Lead System Administrator
    Irkutsk Regional ISP
    2008 - PRESENT
    • Designed and implemented a regional network and three private data centers. We built the network with more than 3000 switches and routers and 90+ Linux servers of different types.
    • Reduced reclamations 50% by introducing technical corporate standards.
    • Implemented a fault-tolerant PPPoE cluster with MPD on FreeBSD and a pool of distributed FreeRadius servers.
    • Implemented a network monitoring system with Zabbix that has about 30000 data elements and performs at 120 elements/sec.
    • Customized billing software using Perl and Python.
    • Designed and implemented a complete set of ISP services.
    • Built an efficient team of system administrators.
    Technologies: Linux, Networking, FreeBSD, High-load and high-availability infrastructure, etc.
  • System Sdministrator
    Irkutsk National Sanitary Office
    2006 - 2008
    • Designed, deployed, and integrated a corporate network for 100+ users.
    • Implemented a backup strategy.
    • Upgraded corporate servers with open source software.
    Technologies: Linux, Windows, Corporate Networks, etc.
Skills
  • Tools
    Apache, KVM/Qemu, Zabbix, Nagios, iptables, Git, Nginx, Vagrant
  • Paradigms
    Network programming, Agile Software Development
  • Platforms
    Linux, FreeBSD, Debian Linux
  • Storage
    MySQL
  • Misc
    Routing, BGP, HAProxy, Asterisk, Bacula, FreeRADIUS
  • Languages
    Python, Perl
  • Libraries/APIs
    Puppet.js
Education
  • Master's degree in Physics, Telecommunication Networks and Systems
    Irkutsk State University - Irkutsk, Russia
    2003 - 2008
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