Changing How the World Works.
 
 
  • Feedback:   (4.61 of 5)
  • Percentile: 47%
    Based on 13 feedbacks
Hourly Rate: $22.22
Total oDesk hours:
55
Location:
Lviv, Ukraine (GMT+02:00)
English Skills: (self-assessed)
5.0
Member Since:
July 13, 2007
Last Worked:
April 22, 2008
Current Assignments:
0
Total Assignments:
15
oDesk Ready:  
Yes
 
 
 
 

Oleksiy Kondratenko - Terrific Unix/Windows System Administrator,MCSE,SCSA,12+ years of exp. - Freelance System / Database Administrator, Ukraine

Working as System Administrator since 1995, administering Unix, Linux and Windows systems for the past 12+ years. Extensive experience with Solaris, Linux, FreeBSD, Irix. Worked as consulter and contractor for the past 6 years. In-depth knowledge of networks and services - web, dns, email , routers and firewalls, network security, VPNs, antivirus and antispam defence, databases. Eager to learn new things! Proficient with shell programming and scripting - bash, tcl, perl, php....
See All Work History & Feedback (15 items, 13 with Feedback)
Recent Work History & Feedback
Buyer ID From/To Job Title Paid Feedback
23947 04/2008 - 04/2008 Migrate Windows 2003 Server / PHP / MySQL Databases $37 (2 hrs @ $22.22)
37955 04/2008 - 04/2008 Linux admin $170 (8 hrs @ $22.22)
20161 03/2008 - 04/2008 Build FFMPEG from latest binaries on MAC $200 (fixed-price)
25545 04/2008 - 04/2008 Failover Linux server $89 (4 hrs @ $22.22)
29193 03/2008 - 03/2008 Install and Configure PHPschedulit $28 (fixed-price)
See All Tests Taken (3 items)
oDesk Tests Taken
Name of Test Score Percentile Date Taken Duration
Linux Test 4.50 98% TOP 10% 3rd Place! 07/17/2007 25 min
Networking XP Test 3.50 97% TOP 10% 02/13/2008 16 min
Windows Networking Infrastructure Test 3.10 94% TOP 10% 02/13/2008 35 min
Recent Candidacies
Job Opening Title Initiated By Date
Database Architect Buyer November 24, 2008
Job Category Interests

Web Development

Software Development

Networking & Information Systems
Skills
Skill Experience Level Last Used Description
C/C++/Unix 12 yrs 5.0 2007 Compiling, tuning and tweaking various opensource software on Linux and Solaris platforms to suite the required needs
LAMP administration 12 yrs 5.0 2007 Administered various Linux systems for the past 12 years. There isn't a task that I cannot do!
Lotus Domino 2 yrs 4.0 2007 Installed, tweaked and managed the Lotus Domino server, used for documents circulation, bug reporting and messaging
MS-SQL 7 yrs 5.0 2007 Managed MS SQL 2000/2005 servers: installation, backups, security.
MySQL 5 yrs 5.0 2007 Numerous MySQL installations: installing, performance tuning, backup/restore, security. UNIX, Linux and Windows platforms. Clustering.
Perl 5 yrs 5.0 2007 Writing complex scripts for administration and web cgi applications
PHP 4 yrs 2.0 2007 Writing small applications and scripts
Project Management 6 yrs 5.0 2007 Completed numerous projects, was managing 1-6 people at different times
Remoting 6 yrs 5.0 2007 Working with remote support and telecommuting since 2001
Sharepoint 4 yrs 5.0 2007 Experience with Sharepoint 2.0 and 3.0, integration with Active Directory
Solaris Administration 6 yrs 5.0 2007 SUN Certified System Administrator

Knowledge of SunOS since 5.5.1 and Solaris 2.x-10 on Sparc and x86 platforms
TCP/IP 12 yrs 5.0 2007 Expert in networking technologies
Tomcat 4 yrs 3.0 2007 Setting up and further maintenance of Tomcat and JBos servers. Clustering, fault-tolerance and load balancing configurations in sensitive and restricted environments
Unix Shell 12 yrs 5.0 2007 Programming shell scripts for administration and other purposes using bash, tcl, perl, C languages
VoIP 3 yrs 3.0 2007 Experience with Asterix PBX and Samsung, Panasonic phone stations and VoIP.
Web and Application Server Administration 8 yrs 5.0 2007 Extensive experience with installing, updating, securing and managing Apache, iPlanet, IIS, SUN One, Tomcat, JBoss web and application servers.
Windows Administration 12 yrs 5.0 2007 Experienced in all favours and services - windows 95,98,NT 4, 2000, 2003, Vista and Longhorn. Active Directory, Network Services, IIS, Sharepoint, DFS, DNS, DHCP and other services.
Wireless 3 yrs 5.0 2007 Deploying, securing and administering wireless networks, building network bridges between wired and wireless parts, securing communications
Certifications
Date Earned Name Score Percentile Organization Description
2004 Linux Administration (General) 4.71 99% Brainbench —
2007 Microsoft Certified Systems Administrator (MCSA) [5905295]     Microsoft MCSA
2008 Microsoft Certified Systems Engineer (MCSE) [5905295]     Microsoft MCSE
2006 Network Security 4.45 98% Brainbench —
2006 SUN Certified System Administrator [none]     SUN Microsystems Certified for Solaris 10 OS
Employment History
From To Company Title/Role Description
07/2003 Present current company Senior Systems Administrator / Team Lead
  • Acted as a leader of a team, sharing responsibility for a network consisted of 300+ workstations and 40+ servers of the different architecture (i86, sparc, pa-risk) and platform (MS Windows NT/2000/XP/2003, Solaris 8/9/10, HP-UX 11, QNX 6, Linux, FreeBSD) in a large software company.
  • Created and managed the Support Center, that performed remote support and helpdesk tasks for numerous clients and internal staff. Tasks included remote server, workstation, firewall and IDS appliance, hosted application  installations, oversee, troubleshooting and monitoring, consulting.
  • Implemented better security practices that include nightly antiviral and trojan/spyware scans, automatic security updates installations, automatic antiviral and spam-detection  scans of passing email.
  • VPN concentrator set-up and maintenance (ipsec, pptp)
  • Mail server set-up and maintenance (Postfix, Sendmail, MDaemon, Exchange 2003/2007), KAV Antivirus, Majordomo
  • Multiple Oracle, MS SQL, MySQL DB installations and maintenance.
  • Centralized log processing and monitoring server set-up and maintenance. Realtime analyzing of the log files from 300+ workstations and servers, traffic monitoring, intrusion early detection and notification
  •  Setting up and maintenance of the network services: dhcp, dns (Bind, MS DNS), bootp, snmp
  • Administered the Windows 2000/2003-based domain (group policies, DFS, SUS/WSUS, Active Directory)
10/2002 07/2003 HelloSoft Inc. Consultant / Independent Contributor •    Rebuilt existing network achieving increased availability and reliability
•    Installed virus- and spam-filtering email gateway based on Postfix, SpamAssassin and DrWeb.
•    Created VPN access for out of office employees, providing secure and reliable way of accessing the Company's network resources.
•    Upgraded Company's network to Windows 2000, created Domain environment.
•    Deployed Microsoft CRM with Exchange 2000 and MS SQL 2000.
•    Protected internal network with custom Linux-based Firewall solution.
•    Managed and customized office Panasonic PBX.
04/2001 06/2003 picoTurbo Inc. Systems Administrator / Systems Engineer / Consultant / Independent Contributor
  • Administered a multiplatform network based on Solaris/SunOS, MS Windows and Linux. Completely remodeled network infrastructure to increase reliability and ease of maintenance and management. Supported remote network in branch in Taiwan. Consolidated two physical networks into one logical using VPN technologies.
  • Supported a number of development teams. Installed and managed proprietary bug tracking software for all ongoing projects. Implemented and controlled CVS server. Supported FlexLM licensing server. Installed developing environment for cross-compiling for ARM7/ARM9 architecture. Worked closely with users to resolve technical problems quickly and efficiently.
  • Programmed the powerful backup system for Solaris and Linux systems. Used Legato Networker and Veritas NetBackup to achieve maximum reliability.
  • Managed the intranet web server based on Apache, PHP, MySQL.
  • Installed calendar server based on iPlanet Calendar Server and Netscape Directory.
  • Installed and managed web (apache,netscape), ftp (ncftpd), mail (postfix, sendmail), dns (bind) servers in USA and Taiwan. Used modern antiviral and spam detection software on the mail gateways. Deployed and supported internal news server (leafnode, inn).
  • Installed and supported VPN access points for remote users using PPTP and strong encryption.
  • Used intrusion detection, integrity verification and warning systems for detection of network attack attempts and intrusions.
  • Managed distributed network file system (raid, NFS, Veritas Volume manager, Solstice Disksuite)
  • Wrote various administrative and system tools using sh, tcl, perl.
09/2002 06/2003 PhotoZig Consultant / Independent Contributor

·         Customized Linux kernel for PhotoZig project. Created custom Linux distribution to suit project needs. Occasional perl programming. Selected and adopted several hardware solutions for the project.
11/2000 03/2001 TAOS Mountain Systems and Network Administrator / Independent Contributor
  • Performed routine sysadmin tasks on Solaris and IRIX platforms. Maintained NIS and NFS servers and clients, Solaris JumpStart servers.
  • Prepared the network infrastructure layout project for a multi-branch company with mixed environment (UNIX, Windows) which included company-wide NIS and NFS availability, round-robin split DNS, WINS servers, LDAP server. Project was designed to be secure, fast and fault tolerant.
  • Installed and maintained mail servers.
  • Continuously self-studied and prepared for certification exams.
10/1997 11/2000 West Wind ltd. Systems and Network Administrator / Independent Contributor
  • Projected, installed and maintained the local networks in company's headquarters and branches. Used Solaris and Linux on PC and Alpha platforms for support of intranet web and ftp servers, NFS, DNS master and slave servers. Used Linux for internet gateway with built-in firewall to protect local network. Used Samba to consolidate networked Unix and Windows NT/95 resources together into one solid heterogeneous environment.
  • Utilized Socks, masquerading, squid http/ftp proxy to allow safe access to the internet from the local network. Used SSH as a secure tunnel to connect several branches with main office through insecure Internet connections. Installed and maintained encrypted file systems for confidential commercial data, organized safe backup and storage of this information. Wrote backup scripts using shell scripting.
  • Maintained Internet domains, managed corresponding DNS servers. Used inn and leafnode software for NNTP service. Installed and maintained primary and secondary mail servers. Wrote shell scripts to automate backup and monitoring processes.
  • Migrated the company's main database from Microsoft Access to MySQL server for extra performance and reliability.
Other Experience
Telecommute and Remote Administration
Working for 8+ years remotely, managing UNIX, Linux, Windows server, network routers and firewalls, other appliances. Expert level.
Education
From To School Degree Area of Study Description
09/1994 12/1999 Lviv State University "Lviv Polytechnic" Masters Computer Science
No items in portfolio
Hourly Assignment History
Buyer ID From/To Job Title Paid Feedback
23947 04/2008 - 04/2008 Migrate Windows 2003 Server / PHP / MySQL Databases $37 (2 hrs @ $22.22)
37955 04/2008 - 04/2008 Linux admin $170 (8 hrs @ $22.22)