Duro Oravsky Email & Phone Number

Ottawa, On, Ca

Ottawa, On, Ca

Ottawa, Canada Area

Ottawa, Canada Area

Achievements – TechnologySupported over 15 e-Commerce customers in their production environments using Jboss and TomcatHelped to design new SAP Hybris based environments with Tomcat as application server.Supported and Maintained full stack of Oracle ATG installationsDesigned , Developed and Maintained custom monitoring systemDesigned , Developed and Maintained custom log parsing system for Apache/NGINX, Jboss/Tomcat logsDesigned and Implemented regular LogAnalysis and… Show more Achievements – TechnologySupported over 15 e-Commerce customers in their production environments using Jboss and TomcatHelped to design new SAP Hybris based environments with Tomcat as application server.Supported and Maintained full stack of Oracle ATG installationsDesigned , Developed and Maintained custom monitoring systemDesigned , Developed and Maintained custom log parsing system for Apache/NGINX, Jboss/Tomcat logsDesigned and Implemented regular LogAnalysis and LogReview processPerformed full Environment Performance Reviews for all customersSupported and facilitated LoadTesting activities for selected customers using Jmeter scripts.Designed and Implemented bot protection system that allowed Thinkwrap to prevent D/DOS attacks and crawling.Served as 3rd Level Escalation Subject Matter Expert for On-Call PersonalImproved Thinkwrap Documentation by collecting capacity and performance related settings of each environmentRegularly reviewed all Production Environments against Critical Security Patches released by vendors.Implemented and Managed usage of New Relic Digital Intelligence Platform for selected group of customers.Managed Amazon Web Services based Production environments Supported Implementation of CloudFlare CDN for multiple customers.Setup and Maintained External Web Monitoring solution using SmartBear platform.Supported availability monitoring for all elements of the production infrastructure using Icinga .Served as a senior Subject Matter ExpertAchievements – ManagementManaged small environment team, responsible for creation of environments for new customers.Developed and Implemented Process for environment Handover and Takeover from/to customersPrepared and Trained the Support Team for activities during Peak Traffic Periods like Black Friday.As part of Management Team, contributed to Employee Performance Reviews, Strategic Planning and represented the Support Team at company level meetings. Show less

Ottawa, Canada Area

Planned, Architected, Installed, Configured and Supported over 10 JBOSS installations with up to 6 different Applications Servers each, 4 WebSphere installations in a cluster mode.Supported and Maintained full stack of ATG installations, which was running corporate website and online store.Supported and Maintained Oracle WebCenter Sites installations, which was running corporate “in product messaging” platform.Deployed and Supported over 20 corporate and B2C production web… Show more Planned, Architected, Installed, Configured and Supported over 10 JBOSS installations with up to 6 different Applications Servers each, 4 WebSphere installations in a cluster mode.Supported and Maintained full stack of ATG installations, which was running corporate website and online store.Supported and Maintained Oracle WebCenter Sites installations, which was running corporate “in product messaging” platform.Deployed and Supported over 20 corporate and B2C production web applications on regular basis.Contributed to company’s overall infrastructure architecture with regards to capacity planning, failover and scalability of production environments.Set Up fully load balanced, fault tollerant Web and JBOSS production environments from scratch, including Apache Server, JBOSS, ATG framework and custom J2EE extensions.Designed, Configured and Maintained availability monitoring for all artifacts of the production web infrastructure Planned, Setup and Maintained external web caching for major company websites using AKAMAI CDN.Lead Load Testing efforts for all production B2C Web Applications, developing fitting customer behaviour model and improving the load testing process and documentation.Planned and Executed extensive performance fine-tuning of all production JBOSS Application Servers.Supported 2 successful migrations from WebSphere to JBOSS Middleware, for various Corel product platforms.Over 8 years, Supported 3 migrations of corporate Data Centre, latest migration to Amazon Web Services cloud.Managed elements of Corel’s PKI infrastructure including SSL certificates, keystores and administered SSL key signing process using Entrust’s web interface.Served as resident Subject Matter Expert, troubleshooted numerous issues on all levels of technology stack.Administered local installation of Atlassians JIRA and WIKI products.Worked with Marketing team to Setup and Maintain SEO strategy using webserver URL rewriting. Show less

Toronto, Canada Area

Planed, Architected, Installed, Configured and Supported over 15 WebSphere installations with 16 different Applications Servers each Designed , Developed and Maintained Script Administration Suite using WSADMIN, KSH and JACL scripts to automate all day-to-day tasks Deployed and Supported over 20 corporate and B2C production web applications on regular basis Designed, Configured and Maintained scripts for availability monitoringDesigned and Supported Service Level Agreement… Show more Planed, Architected, Installed, Configured and Supported over 15 WebSphere installations with 16 different Applications Servers each Designed , Developed and Maintained Script Administration Suite using WSADMIN, KSH and JACL scripts to automate all day-to-day tasks Deployed and Supported over 20 corporate and B2C production web applications on regular basis Designed, Configured and Maintained scripts for availability monitoringDesigned and Supported Service Level Agreement Monitoring and Reporting Supported and Contributed to Load TestingPlanned and Executed extensive performance fine-tuningMaintained Web and WebSphere security up-to-dateArchitected, Set Up, Maintained and Tested company’s Disaster and Recover siteWebSphere migration from version 4.0.7 to version 5.1.1 Designed and Fine-Tuned Release ManagementManaged elements of D+H’s PKI infrastructure Show less

Geneva Area, Switzerland

* Analyzed and Prototyped new Dynamic Web Pages Project using XML data format and XSL Transformations exceeding 2000 lines of code in JS and HTML, and over 1500 lines of code in XSLT. * Contributed to developing dynamic custom JavaScript menu for flagship web applications The Markets Server and The Markets Monitor

Austria Area

* Developed and Maintained sophisticated Oracle GUI application as member of team, which was extending proprietary Siemens Energy Management Systems using Forms, SQL, PL/SQL, C, Pro*C, Pascal, and C-Shell scripts on SUN Solaris UNIX. * Prototyped and Developed new add-ins for Distributed European Energy Management System, based on North American Model, using Oracle Developer 2000, PL/SQL and Perl. In charge of several DBA tasks on Windows NT. Developed and Maintained over 350 Stored… Show more * Developed and Maintained sophisticated Oracle GUI application as member of team, which was extending proprietary Siemens Energy Management Systems using Forms, SQL, PL/SQL, C, Pro*C, Pascal, and C-Shell scripts on SUN Solaris UNIX. * Prototyped and Developed new add-ins for Distributed European Energy Management System, based on North American Model, using Oracle Developer 2000, PL/SQL and Perl. In charge of several DBA tasks on Windows NT. Developed and Maintained over 350 Stored Procedures, Triggers and Packages in PL/SQL. * Constructed and Tuned more than 1000 complex SQL queries. * Analyzed and Prototyped Dynamic Web Pages Project for world leading News Agency REUTERS, within tight deadlines, using XML data format and XSL Transformations over 2000 lines of code in JavaScript and HTML, and over 1500 lines of code in XSLT. * Designed and Developed Intranet for SWH Department in Siemens Corporate Style using HTML, JavaScript, CGI Scripts and Apache Web Server configuration Show less

Masters, Theoretical Physics

Education record