[var] => content
[type] => preview
[var] => cut_url
Nikolaja Vasilenko str.,
Oracle and Sun certified professional.
years IT experience, years Oracle experience and years UNIX
experience. Specialize in Oracle database administration including
Oracle RAC and UNIX systems administration. Solid background in software
development. Result oriented hard worker with strong problem solving
skill. Fast learner.
Databases: Oracle . – g.
Operating Systems: Solaris ,
Linux, MS Windows NT//XP.
Languages: SQL, PL/SQL, UNIX shell
modeling: Sybase Power Designer .., Erwin . – ..
Disaster Recovery Solutions: Oracle
High Availability Systems: Oracle
Server management and monitoring:
Oracle Enterprise Manager, “Big Brother” monitoring system.
Oracle Database g Administrator Certified
Professional OCP DBA g, /.
Novell Certified Linux Administrator,
Linux Professional level LPIC by
Linux Professional Institute, /.
Managing Oraclei on Linux, /.
Sun Certified System Administrator for
Solaris SCSA , /.
Oracle i Database Administrator Certified
Professional OCP DBA i, /.
Oracle i Certified Professional Database
Administrator OCP DBA i, /.
Luxoft Ukraine / present
Working as member of Application DBA
team please note that these is no relation to Oracle Applications
for one of Luxoft’s biggest client Deutsche Bank. This team developing
Data Lifecycle Management DLM project which is part of the eSpear
Infrastructure Program. Production footprint of eSpear is about TB
at the moment. The basic goal of DLM is to reduce the size of the eSpear
data footprint by removing data from the production system and either
discarding it purging or moving it to a different storage location
archiving. We also provide support for eSpear developers in terms
of query tuning, code review, troubleshooting and performance analysis.
Infopulse Ukraine //
As member of database operations group
was responsible for solving incidents and tasks obtained from customers.
Assisted team members with complex issues especially related to Oracle
clusters both RAC and HA and troubleshooting. Communicated with customer’s
technical people directly when required.
Responsible for communicating
with Oracle support, open and track service requests.
Installed and configured “hobbit”
monitoring system for one of key customers.
Troubleshoot incorrectly used
“Oracle parallel execution” option.
Tuned databases to optimum
levels of performance using Oracle statspack and AWR.
UKRTRADE LTD. //
Oracle DBA, UNIX Systems Administrator
UkrTrade Ltd is retail company which
runs network of twentyfourhour supermarkets in Kharkov of them
as of and growing. All sites are interconnected and required data
replicated. Several sites are already migrated to Oracle Real Application
Clusters version g release others are in progress of such migration
to provide high availability and better performance. As Oracle DBA was
responsible for installation, maintenance, tuning, troubleshooting,
backup and recovery of databases. Assisted to Unix systems administrator
with aspects related to database hosts. Contacted vendors and recommended
on equipment purchases.
Made elaborate setup of Linux
operating systems and Oracle databases on all sites to provide required
reliability, performance and maintainability.
Deployed Real Application
Clusters configuration to several production sites to achieve / availability.
Monitored and tuned systems
and databases to optimum levels of performance. Performed system upgrades
in support of business processing requirements.
Installed and configured “Big
Brother” monitoring system on all production systems. This setup allows
administrators to be notified about almost any problem as soon as possible
with email and SMS.
Automated multilevel backup
of Oracle database using Oracle Recovery Manager to disk arrays and
tapes for extra protection. Assisted developers with writing and tuning
SQL queries. On call support and problem resolution /.
PDS Ltd. //
Provided consultancy service to clients
about Oracle database administration.
Migrated database of client’s
system from MSSQL to Oracle g standard edition.
Designed and deployed twonodes
database cluster on Oracle RAC technology.
Automated backup of Oracle
database using Oracle Recovery Manager.
Installed and configured Big
Brother monitoring system.
Monitored and tuned systems
and databases to optimum levels of performance.
LUXOFT, member of the IBS Group //
As Oracle DBA supported project “Client
First” on site of customer London branch of Deutsche Bank. Provided
support for all environments production, user acceptance test, quality
assurance and development. Operated closely with customer's managers,
developers, administrators as well as developers and quality assurance
engineers from Luxoft team. Did both regular and adhoc reporting. Helped
developers with writing efficient queries to database and tuning existing
ones. Setup new releases on UAT and production, provided troubleshooting
for customer's technical team.
Made analysis of production
database performance bottlenecks using STATSPACK utility.
Created reporting database
using snapshot replication to offload production database.
Designed and developed database
part of performance monitoring system.
JOINT STOCK BANK
Oracle DBA, Unix Systems Administrator
As Oracle DBA was responsible for maintenance,
tuning, troubleshooting, backup and recovery of production database.
Designed and deployed Oracle Data Guard configuration in production
using maximum protection mode that guarantees no data loss. As Unix
systems administrator was responsible for Linux and OpenBSD systems
installation, maintenance, backup and troubleshooting. Provided developers
support and response on calls. Contacted vendors and recommended on
Migrated production environment
from Oracle .. database on SCO OpenServer operating system to Oracle
. database on RedHat Advanced Server . operating system on Intel
Xeonbased servers. This provides developers with all features of modern
Oracle database including performance improvements, administrators with
new scalability, availability, manageability and security features.
Designed and deployed Oracle
Data Guard configuration as disaster recovery solution. This configuration
includes one primary database server and two standby database servers.
It operates in maximum protection mode, which guarantees no data loss
and provides short downtime.
Installed and configured Intel
Server Management and Big Brother monitoring system on all production
Was responsible for installing,
configuring and maintaining servers for existing and new branches of
bank. Servers use Linux and OpenBSD operating systems, running Oracle
databases, Apache Web server with SSL, Tomcat and Resin Java application
Automated backup of Oracle
database using Oracle Recovery Manager. Performed regular system backup.
Assisted developers with writing and tuning SQL queries.
MAXBILL UKRAINE //
Oracle DBA / Developer, UNIX Systems
Installed, upgraded, maintained, tuned,
monitored and troubleshot Oracle databases. Designed and implemented
backup and recovery strategy. Performed UNIX systems administration
inhouse, remotely in all branches and on customer sites. Involved in
Improved speed of acquisition
phase of bill run process on times by optimizing usage of Oracle
Migrated many stored procedures
from MS SQL to Oracle.
Assisted developers with writing
and tuning SQL queries.
Adjusted database architecture
to avoid predictable bottlenecks while adapting billing system for customers
with big amount of data.
Designed and implemented multilevel
incremental backup of half terabyte Oracle database using Oracle Recovery
Maintained cluster of two
IBM p servers with IBM HACMP highavailability software.
Maintained several Sun servers.
M.S. in Computer Science, Kharkiv National
University of Radio and Electronics, /.