- Moscow, RU
- £16 /hr
- Available now
I have 7 years of experience as internet application developer and system administrator in Linux/UNIX environment. I am interested in providing the relevant services to your business.more...I have 7 years of experience as internet application developer and system administrator in Linux/UNIX environment. I am interested in providing the relevant services to your business.
In system administration my distinguishing expertise is building reproducible centrally managed Linux-based service infrastructures using OpenLDAP, Puppet and specialized package building software. Me and my colleagues have successfully used this approach to create scalable fault-tolerant directory service, MySQL and mail clusters, distributed Nagios monitoring system and other typical elements of IT infrastructure.
Area Covered: Moscow, Russia
Work Experience Summary: System Administrator
07.2009-03.2010 Oversun/McHost (http://oversun.ru, http://mchost.ru),
Work in Oversun IT department. Developing IT infrastructure of the whole holding company.
Operational work in McHost, Oversun subsidiary hosting company.
Deployment of corporate LDAP directory service on FreeBSD. Reproducible
fault tolerant OpenLDAP server infrastructure with multi-master
replication; CARP on network layer, DNS-level balancing. Server
reproducibility implemented using special
release engineering software and Puppet for configuration management, plus automated PXE installer.
Development and deployment of OrgLDAP (http://orgldap.sf.net) as LDAP tree management
solution including user accounts, group membership and sudo roles.
Senior System Administrator
03.2009-07.2009 .masterhost (http://masterhost.ru) ,
Responsible for Virtual Private Server hosting built upon Parallels
Virtuozzo Containers software solution.
Implemented efficient technical backup solution, a daemon process
(Python[subprocess, threading]) periodically scanning archive storage
to determine containers needing copy. Based on obtained data, the daemon
builds prioritized queue and maintains a pool of child processes (vzbackup)
performing remote backup of the containers.
Troubleshooting, consulting junior administrators, communication with
Supporting and improving distributed Nagios monitoring system.
09.2007-03.2009 OILspace (http://oilspace.com), now Aspect Enterprise Solutions ,
Combined previous development activity with more involvement in system
Supporting n-tier Java web applications on the company\'s and customers\'
production sites in GNU/Linux environment.
Developed regression testing automation solution (Python, Java) for ASPect,
one of the two main company\'s software products.
Supporting and extending corporate IT infrastructure including directory
service (OpenLDAP), collaboration platform (TWiki), user management
(OrgLDAP), bug tracking (Atlassian Jira, developed custom SMS notification
extension), and development planning. Integration with third-party
applications (Python[OpenAir PSA, Postini])
02.2005-09.2007 OILspace ,
Development of OrgLDAP Admin, LDAP user management web application
Development of Aquarium, internal automation and planning application including
development, QA and attendance management (Python[CGI, Cheetah, MySQL]).
Integration with OpenAir PSA.
10.2002-01.2005 ICIE/CITS (http://inevm.ru, http://citis.ru) ,
Development of customer accounting application for CryptoPRO certificate
authority (IIS, ASP, Java, Apache Cocoon[XSLT, custom XML generator
component, JS Flowscript, Xindice XMLDB].