Oleksandr N.
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Oleksandr N.

Senior System Administrator, Migration and Security L3 engineer, SSD

$28.88/hr

Zaporozhye, Ukraine


Oleksandr N. has added 19 portfolio pieces. Create an account to review them.

YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) ... more Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY 10 years in IT sphere on a different positions starting from customer service representative in chat and ending Senior System Administrator in lead EU web hosting company. Have experience in architect of the cluster setup for web hosting companies, large online projects, mass mail servers, db storage etc. EXPERIENCE * Freelance May 2013 - Present (3 years) The most of my tasks as freelancer are: MySQL(MariaDB, Percona, MySQL servers) tuning and optimization; Web servers (Nginx, Apache, Lighthttpd, Varnish) tuning and optimization; Security hardening; Migrations (server to server, database engine to database engine, etc ); Backup integration (web data, mysql replication, custom backup scripts writing, etc); HA projects development and setup of the servers cluster (load balancing, web servers, database server replication); Setup and maintaining of DB servers and clients’ databases; DB server load investigation (slow queries, process list, disks check,etc ). Recommendation available upon request * Linux/Windows system administrator, Operations team at EuroVPS/WebDomSolutions February 2012 - April 2013 (1 year 3 months) Responsibilities: - Tickets; - System administration,monitoring,optimization. Technical stack: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS; - Control panels: Plesk, WHM/Cpanel; - Database Servers Administration: Microsoft SQL Server, MySQL, MariaDB (backup, maintenance, debug); - Work with highly loaded Web projects * DBA / Techsupport at Webintellects/Webhostgian/Jumpline/ Webdomsolutions November 2010 - March 2012 (1 year 5 months) Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Technical stack: - Operating Systems: RedHat/CentOS/ Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. Recommendation available upon request * Internet Marketing Specialist || Web Analyst at DCoM Soft, Inc. December 2009 - August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics; - Information architecture and Web site content planning; - Research of partners; - Internet Market Research; - Research Usability Design; - Online promotion of company's web-based products. Skills: - Search Engine Optimisation (SEO); - Paid online Marketing / Pay per Click Management (PPC); - SEO Copywriting/Editing; - Social Media Optimization and Marketing (SMO/SMM); - Writing press releases; - Social networking (Twitter, Facebook, Google follow etc); - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. * Customer Relations Representative || Advanced Technical Agent at Ecommerce, Inc. May 2007 - October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Technical stack: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3). 4 recommendations available upon request less

Overview

YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY 10 years in IT sphere on a different positions starting from customer service representative in chat and ending Senior System Administrator in lead EU web hosting company. Have experience in architect of the cluster setup for web hosting companies, large online projects, mass mail servers, db storage etc. EXPERIENCE * Freelance May 2013 - Present (3 years) The most of my tasks as freelancer are: MySQL(MariaDB, Percona, MySQL ... moreservers) tuning and optimization; Web servers (Nginx, Apache, Lighthttpd, Varnish) tuning and optimization; Security hardening; Migrations (server to server, database engine to database engine, etc ); Backup integration (web data, mysql replication, custom backup scripts writing, etc); HA projects development and setup of the servers cluster (load balancing, web servers, database server replication); Setup and maintaining of DB servers and clients’ databases; DB server load investigation (slow queries, process list, disks check,etc ). Recommendation available upon request * Linux/Windows system administrator, Operations team at EuroVPS/WebDomSolutions February 2012 - April 2013 (1 year 3 months) Responsibilities: - Tickets; - System administration,monitoring,optimization. Technical stack: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS; - Control panels: Plesk, WHM/Cpanel; - Database Servers Administration: Microsoft SQL Server, MySQL, MariaDB (backup, maintenance, debug); - Work with highly loaded Web projects * DBA / Techsupport at Webintellects/Webhostgian/Jumpline/ Webdomsolutions November 2010 - March 2012 (1 year 5 months) Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Technical stack: - Operating Systems: RedHat/CentOS/ Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. Recommendation available upon request * Internet Marketing Specialist || Web Analyst at DCoM Soft, Inc. December 2009 - August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics; - Information architecture and Web site content planning; - Research of partners; - Internet Market Research; - Research Usability Design; - Online promotion of company's web-based products. Skills: - Search Engine Optimisation (SEO); - Paid online Marketing / Pay per Click Management (PPC); - SEO Copywriting/Editing; - Social Media Optimization and Marketing (SMO/SMM); - Writing press releases; - Social networking (Twitter, Facebook, Google follow etc); - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. * Customer Relations Representative || Advanced Technical Agent at Ecommerce, Inc. May 2007 - October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Technical stack: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3). 4 recommendations available upon request less

Oleksandr N.
Drop Here

Oleksandr N.

$28.88 /hr

Senior System Administrator, Migration and Security L3 engineer, SSD

Zaporozhye, Ukraine

Overview

YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY 10 years in IT sphere on a different positions starting from customer service representative in chat and ending Senior System Administrator in lead EU web hosting company. Have experience in architect of the cluster setup for web hosting companies, large online projects, mass mail servers, db ... morestorage etc. EXPERIENCE * Freelance May 2013 - Present (3 years) The most of my tasks as freelancer are: MySQL(MariaDB, Percona, MySQL servers) tuning and optimization; Web servers (Nginx, Apache, Lighthttpd, Varnish) tuning and optimization; Security hardening; Migrations (server to server, database engine to database engine, etc ); Backup integration (web data, mysql replication, custom backup scripts writing, etc); HA projects development and setup of the servers cluster (load balancing, web servers, database server replication); Setup and maintaining of DB servers and clients’ databases; DB server load investigation (slow queries, process list, disks check,etc ). Recommendation available upon request * Linux/Windows system administrator, Operations team at EuroVPS/WebDomSolutions February 2012 - April 2013 (1 year 3 months) Responsibilities: - Tickets; - System administration,monitoring,optimization. Technical stack: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS; - Control panels: Plesk, WHM/Cpanel; - Database Servers Administration: Microsoft SQL Server, MySQL, MariaDB (backup, maintenance, debug); - Work with highly loaded Web projects * DBA / Techsupport at Webintellects/Webhostgian/Jumpline/ Webdomsolutions November 2010 - March 2012 (1 year 5 months) Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Technical stack: - Operating Systems: RedHat/CentOS/ Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. Recommendation available upon request * Internet Marketing Specialist || Web Analyst at DCoM Soft, Inc. December 2009 - August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics; - Information architecture and Web site content planning; - Research of partners; - Internet Market Research; - Research Usability Design; - Online promotion of company's web-based products. Skills: - Search Engine Optimisation (SEO); - Paid online Marketing / Pay per Click Management (PPC); - SEO Copywriting/Editing; - Social Media Optimization and Marketing (SMO/SMM); - Writing press releases; - Social networking (Twitter, Facebook, Google follow etc); - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. * Customer Relations Representative || Advanced Technical Agent at Ecommerce, Inc. May 2007 - October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Technical stack: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3). 4 recommendations available upon request less

Oleksandr N. has added 19 portfolio pieces. Create an account to review them.

Work History and Feedback

  • US Internet Firm Seeking SysAdmin or Developer Proficient in Mail Server Setup

    Sep 2015 - Present
    Job in progress

    202 hours

    $25.00 / hr
    $5,054.17 earned

  • US Internet Firm Seeking SysAdmin or Developer Proficient in Mail Server Setup

    Sep 2015
    5.00
    Top-notch, easy to communicate with, delivered as expected. Highly recommended!

    20 hours

    $32.88 / hr
    $657.60 earned

  • Need help configuring LEMP stack (Ubuntu) on Digital Ocean instance

    Apr 2015 - May 2015
    5.00
    Alex was great to work with, with excellent communication & really knew his stuff! I would definitely work with him again. Thanks Alex.

    1 hour

    $34.88 / hr
    $34.88 earned

  • Help Me Set Up A Hosting Company

    Jan 2014 - Mar 2015
    5.00
    Alexander is a great sysadmin. Proactive, not just reactive.... he watches out carefully to ensure your servers are protected from the latest exploits etc, rather than waiting until something bad happens, and then coming in to fix it. Recommended

    78 hours

    $24.99 / hr
    $1,949.24 earned

  • linux guru/security and web application setups

    Sep 2013 - Dec 2014
    5.00
    very professional, excellent work

    12 hours

    $18.89 / hr
    $266.69 earned

  • Wordpress Site Must be Lightening Fast

    Apr 2014 - May 2014
    5.00
    Alex is great

    69 hours

    $28.88 / hr
    $2,007.16 earned

  • WHMCS integration + server admin

    Jun 2013 - May 2014
    5.00
    Was a pleasure to work with Alex, alway sdoes a great job and easy to communicate with.

    31 hours

    $18.89 / hr
    $369.24 earned

  • Drupal / Linux guru required to install APC, Memcache and Drush on Plesk server

    Jan 2014 - May 2014
    5.00
    Good Knowledge of Drupal /server performance. Thanks!

    5 hours

    $24.44 / hr
    $118.13 earned

  • Senior Apache Server admin, preferably with experience in WP multi-site (wpmudev)

    Sep 2013 - May 2014
    No feedback given

    31 hours

    $20.00 / hr
    $636.67 earned

  • Linux Server Admin / PARALLELS PLESK EXPERT

    Jul 2013 - May 2014
    5.00
    EXCELLENT!!!! HIRE HIM IF YOU CAN!

    18 hours

    $18.89 / hr
    $336.90 earned

  • Tuning Centos / MYSQL and Apache configuration

    Dec 2013 - Jan 2014
    5.00
    Very fast :) Good communication! Good job.....
    $150.00 earned
    Fixed Price

  • View More (8)

Oleksandr N. has more jobs to show. Create an account to review them.

Tests

NameScore (out of 5)Time to Complete
Apache Server Test (2.0 Family)4.25Top 10%34 mins
PHP Programming Skills Test4.90Top 20%13 mins
Redhat Linux 9.0 General Test4.60Top 20%20 mins
Redhat Linux 9.0 Admin Test3.50Top 30%14 mins
Internet Security Test2.60Above Average34 mins
LAMP Test2.60Above Average36 mins
PHP Test (Old)4.10Top 30%31 mins
CSS 2.0 Test4.00Top 20%27 mins
Unix Test3.60Above Average37 mins
Networking Concepts Test4.00Top 20%20 mins
TCP/IP Test3.40Above Average28 mins
Analytical Skills Test3.50Top 30%19 mins
Joomla 1.5 Test3.10Above Average16 mins
Knowledge of WordPress 3.1 Skills Test3.50Below Average18 mins
Search Engine Optimization Test3.25Top 20%21 mins
Management Skills Test2.75Above Average20 mins
Internet Marketing Test3.50Below Average15 mins
Windows XP Test3.10Above Average18 mins
English Spelling Test (U.S. Version)4.60Above Average20 mins
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