Lazaryev Yuriy

At Zoral Labs I had a chance to work on a variety of projects for different clients. Here are some of them:

Numara Software (now acquired by BMC software)

I performed the role of senior Java developer in the project named “Footprints” which is a ITIL® V3-compatible solution for consolidating and automating business processes within and beyond the IT organization.

Had daily meetings and design sessions with teams that were situated in Colombia and USA (Florida). Had business trip to USA where participated in different dev kick-off and design sessions. Worked in the team that was responsible for development of the prototype at the prototyping phase and development of the business and application frameworks.

Lately has been promoted to Application Framework Feature Lead. Gained new experience with ExtJS (Sencha) and Microsoft Team Foundation Server.

GreenLink Networks

I took part in the development of the “Advanced Loyalty Program” multi-portal web application that provides media broadcasting corporations with the loyalty program tool: while the audience has an attractive point-n-click portal there are sophisticated management and reporting tools on the administrative and program partner portals.

Used tools and framework like JBoss AS, JBoss Cache, JMS, EJB, Spring Framework, Oracle DB, Apache OfBiz, Hibernate, Web services. Used various agile practices on a daily basis.

Internal research project

Semantic Similarity component has been developed by me as a research project in order to determine how effectively semantic networks like WordNET and Wikipedia could be used to calculate a semantic similarity between words using different graph traversal algorithms.

Was solely responsible for the development.

The main challenge was to make program work fast on a big amounts of data without excessive memory usage. I achieved this with preprocessing and storing intermediate results in a binary cache. I worked in tight cooperation with a language scientist from Ukrainian university.

Returnil

Returnil Virtualization System is a combination of antivirus, antimalware and a virtualization system with centralized management console to protect computers from all types of viruses and unwanted system changes.

I was responsible for development of the administration backend web application for system administrators and clients as well as licensing service that was exposed to the desktop client applications.

JBoss Seam Framework on top of the JBoss AS has been successfully used and worked in production under a heavy load (1 million of clients in the database).

JMS and EJB technologies have been used to achieve a horizontal scalability and high availability. I have developed the licensing module to allow different licensing strategies yet being durable and secure.

Fizzback

Real-Time Customer Feedback and Customer Experience Management System built on top of the Business Process Management framework named JBPM. I was involved in a design, development and delivery of the software solution. By the end of the active development phase I had a business trip to the Fizzback company in London and did a technical trainings to teach Fizzback personnel how to deploy new business processes and how to support the system.

FriendsAbroad — Social Network for language learners

Our team developed a clustered and load-balanced solution to serve Internet social network with a VoIP functionality based on Skype. I developed an original Java Applet that was using native Windows Skype API and was exposing it to a JavaScript in the user browser so that it was possible to make calls and chats from the web page UI using Skype as a transport. At the server-side a hardware load balancer and several machines with JBoss AS have been used to serve lots of clients smoothly.

Zubka

UK based Zubka is a job referral site where one can actually earn cash by recommending his mates for jobs. I have joined this project as a Lead PHP developer. At the time I joined there was a lot of legacy and buggy code written in PHP version 4. I have adopted/rewritten all the legacy code so it became compatible with a PHP version 5 and together with deployment of a bytecode optimizer it greatly accelerated the site.

My responsibilities were the following:

• Taking part in technical consultations with mobile operators such as MTS, KyivStar and Beeline.
• Developing and managing Internet, WAP, SMS, STK, IVR services that work under the high load.
• Team leadership.

One of my most successful projects was a software/hardware solution to integrate the Ukrainian national lottery with the mobile portal of Life operator, so that users could buy and print lottery tickets directly from their cell phones.

Another challenging project was developing a WAP search server for MTS. I participated in the development of the search engine algorithm to calculate relevance, and I also developed an indexer with morphology support and a crawler for WAP internet resources.

The company provided integrated PR solutions, including the development, support, and promotion of managed websites. While working there, I developed a CMS system that was used to build about 50 customer websites. Some of these websites are still used successfully by their customers today.

Although most of the websites had a typical set of features, some required more:

• Financial Company "Intrust" (Reporting interface for the Automatic Trading System)
• Insurance company "Rosno" (Algorithm for calculating the payments on the loan)
• Hydrometeorological Centre of Russia.
• Federal Science Educational Oversee Service
• Several banks and development companies.

Within two months of starting at this company, I independently developed a customer support and order processing system using Perl on FreeBSD.

I was responsible for the following:

• Development and support of the Intranet portal.
• Development and support of the Internet site with an E-Shop capability.
• Integration of the Internet-shop with the proprietary company's ERP system.

During my studies at the University, I worked as a system administrator, responsible for the operation of computer labs and other equipment. I installed a LAN on campus, including configuring the Network Address Translation and Firewall services.

I also developed a client-server program to remotely manage and control workstations (using Delphi and Object Pascal). One of my responsibilities was servicing the electronic testing system used to collect data from test blanks and transfer it to the head university office.

I was responsible for:

• Support of servers and dial-up modem pool.
• Domain names registration for clients.
• Consultations and support of dial-up users.
• Gained new experience with FreeBSD, shell scripting, routing, CVS, Sendmail, Apache HTTPD, Squid, BIND, NAMED, IPFW.