Oleg Cherednik

Developing observability module, that collects different statistics from various sources and provides it with post processing. My role: module design, technoloies choosing, coding, testing, support, integration, working with clients, time planning. Technologies: J2SE, J2EE (Web Services), Spring, MySQL/hsqldb, JUnit, Gradle, Git, Amazon AWS, Grails.

Developing various tools based on Java technoogy. Ftp working with Apache FTP, creating office documents with Apache POI, working with images with imageio. Building desktop application with Swing. Application management with maven and svn. Testing with junit.

Developing core part of the system (business logic, web service, database communication), improving existing functionality, integration with 3rd systems' parts, fix bugs, developing real-time GUI interface, new functionality implementation using common description, architecture (order validation, risk management, commission management, TOS↔TDA sync, etc). (Oracle database (via jdbc), Swing, J2SE) working with clients, architecture, Java coding, DB, release management, QA.

Company develops a big system in sports betting for partner from UK (www.marathonbet.com). System has several parts: database, web-client, business logic and reach client. My role: improve of the reach client. Technologies: SWT, J2SE, SQL, Linux, JUnit, Ant. Skills: working in small team with a lot of responsibility in each task, expert in SWT, concurrent processes, refactoring, patterns.

Skills and using technologies: • very good (EJB 3.0, JBoss, MySQL; ORM, JPA, Hibernate; Project architecture; Refactoringcode reviewing; J2SE, Subversion; Linux, Windows as working OS; Working in team, communication with customers) • good (multithreading calculations; UML; Algorithm using and developing) • satisfactory (JMS, WebServices)

One of the biggest Finnish outsourcing company. Developing different projects mostly for Finnish clients. During these times, I'd been working under various projects, one of them was developing a new version of statistics module for Finnish client (www.igglo.fi). Technologies: J2SE, J2EE (Beans, Servelts), J2SE, Scrum. Skills: goal oriented, working in small team, bug fixing, refactoring, communication with clients.

This institute develops high-level control automatic system for engine control systems. My part is to develop programs for microcontrollers (such as Motorola) using C/C++. During those times I worked with different communication protocols (CAN, ModBUS, RS232). Also, develop a high level interface for this systems sing MS Visual C++ with a lot amount of tools such as MFS (GUI), STL, COM.

Have successfully implemented National Instruments software/hardware (LabVIEW) to control signal measurement system for subway in Saint Petersburg. Working directly with client, have implemented new logic that covers over 80% of measur ement requirements. During another project, have successfully improved embedded system based on Atmel microcontrollers using Assembler/C with existed code optimization and low-level command introductions. It has decreased memory and power usage up to 20%.