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Work experience

Unix engineering Team Lead

from 02.2016 to now (8 years 3 months)
LUXOFT Poland, Krakow (IT)

Manage some projects for post-install deployment RHEL/Solaris.(RHEL 6/7, Solaris 10, puppet, JumpStart Server, PXE Boot, bash)

Additional information

Oleksandr Kachimov
IT Engineer (System Administrator)

Address: Poland, Katowice Witosa 32B/22
Email: [open contact info](look above in the "contact info" section)
Skype: okachimov
Phone: [open contact info](look above in the "contact info" section)

Summary of Experience
I have 15 years of experience in, systems design, development and administration including 2 years of database administration (Oracle DBA). I participated in implementation of more than 10 software projects for accounting, insurance, transportation and other clients based on Win9x/NT/2000/2003/2008 or UNIX-based/Linux/FreeBSD. I have good experience in design, development and support of local network, build crossconnection between some offices , Active Directory, Email systems and database.
Almost all recent time I have been working as system administrator (Solaris, OpenBSD, FreeBSD, Linux, Windows 2000/2003/2008), Email administrator (Sendmail, MS Exchange 2003/2007, Cyrus IMAP, Ironport appliances), Local Network administrator (Cisco routers, Cisco switches, Cisco ASA, etc), DevOps(Hadoop Cluster, Tomcat, Apache, nginx, CFengine, PXEboot) and Oracle administrator.
My time allocation in recent projects may be described as: consulting and systems design - 45%, OS administrating – 35%, management - 20%

Certificates
Microsoft IT Professional “Microsoft Exchange Server 2007: Configuration”

Experience:
IBM Client Innovation Center 2.2015-present Poland, Katowice. Advisory IT Engineer - mail gateways engineer.
Limelight Networks8.2010 – 2.2015 Lviv, Ukraine
Senior IT Engeineer. Manage and support Local Network support applications by Atlassian (Jira, Crowd, Confluence, Fisheye/Crusible, Bamboo). Resolve security issues (Internet Gateways, Firewalls ) – based on equipments by Cisco and Juniper appliances. Also worked with Cisco UCM Express.
Senior DevOps. Build and support Dev/QA/Staging/Production environments of Billing-system and Live-reporting for our customers ( based on Hadoop Cluster, MongoDB, RabbitMQ, MySQL, and custom Java/Python solution). This is sophisticated system for collecting and analysing a big amount of messages from log-files which are located on thousands geographically distributed EDGE-servers. Build and maintain deployment system for flexible deploy all components using PXEBoot and CFEngine.

Maven Research 3.2009 – present
Senior System Adminstrator/Senior IT Architect/ Senior IT Adviser – building and maintaining all IT-infrastructure (Network, Applications servers, Firewall, VPN). Working with Cisco ASA 5500 series, Juniper Router SRX 200 series. Build and support Production/Dev/QA/Staging environments based on CentOS Linux, Ubuntu Linux, Apache, ngnix, Ultra-Monkey tools, Tomcat, MySQL, Zabbix, GlusterFS, Bacula, CFEngine. Atlassian Application(Jira, Confluence, Fisheye,etc). Email systems(sendmail+dkim, spf, processing email bounce) .

Lohika Systems, Inc.5.2005 – 8.2010Lviv, Ukraine
Manage and support Local Network in 3 offices(Lviv, Odessa, Kyiv, San Bruno-USA), manage and support distribute Active Directory with 4 sub-domain, manage and support Email Systems (MS Exchange server 2003-2007, Sendmail, Cyrus IMAP, Blackberry Enterprise Server 5.0), Security issues (Internet Gateways, Firewalls )
Project Support – Unix/Linux/Windows OS, Tomcat, Apache,IIS
1.2006 Team Lead of IT Team in Lviv office

Operation system: Microsoft Windows 2000/2003/2008 Server(AD), Red Hat Linux, Debian Linux, Suse Linux , CentOS Linux, FreeBSD UNIX, OpenBSD UNIX, Sun Solaris

Lviv State Railway Center9.2001 – 5.2005Lviv, Ukraine
Application server administrator and database administrator. Administrating different version of Oracle and following operation systems: FreeBSD, Red Hat Linux, Windows 2000/2003(Active Directory). Also administrating application servers which use Oracle db.

Operation system: Microsoft Windows 2000 Server, Red Hat Linux, FreeBSD UNIX
RDBMS: Oracle 8.1.7, Oracle9.01, Oracle 9.2.0

Lviv State Railway Center9.2000 – 5.2001Lviv, Ukraine
Developing interactive inquiring system based on ORACLE and modern WEB-technologies with PHP language programming.
Environment: PHP, Apache, PL/SQL
Developing traffic document processing automated systems for local branch of State Railway.
Developing document transfer systems.
Environment: PHP, PL/SQL, SQL, XML

Education
9.1993 – 6.1999Lviv, Ukraine
Lviv National University “Lvivska Politechnika” in Technical Sciences with specialty:
Electro-power systems automated management
Languages
Ukrainian –fluent
Russian – native
English – upper-intermediate