Environment: .NET (C#, .NET Windows Forms, ADO.NET, NUnit, ASP.NET, log4net), Microsoft Visual Studio, SQL, T-SQL, Microsoft SQL Server, Toad, Microsoft IIS, JavaScript, Progress 4GL (ABL, SQL, stored procedures, triggers), Java, IntelliJ IDEA, C, C++, Linux/UNIX shell scripting, git, Git Extensions, CVS, WinCVS, YouTrack, Siebel, Enterprise Architect, RCS; PSP; Windows, CentOS Linux, HP UX, SCO Unixware.Maintained complex billing system: fixed problems, implemented new feature suggestions (front and back end).Implemented and maintained automatic proration of customer service changes, extended its features to fulfill ongoing business needs changes. Saved accounting and sales departments a lot of daily work - they no longer need to prorate every change of customer services manually.Implemented and maintained credit card payment system and reporting for it (front and back end). That made it possible to charge company clients recurrently by credit cards and have all the successful payments automatically posted back to billing system. Designed and implemented secure storage for customer credit card sensitive data and web application for customer credit card management and reporting. Developed and maintained data warehouse including daily billing and revenue data processing for being used in convenient one-place reports. Designed and implemented stored procedures for interaction between billing system and customer management system. That allowed customer management system to use billing functionality it lacks (including important back-end functionality for the external customer facing web application) for production business needs.Wrote and maintained billing system’s build scripts; significantly improved them with great flexibility and modern approach with reduced possibility of mistakes.Elicited and wrote requirements. Wrote functional specifications, user and operations manuals, release notes, and test plans.

Roles: Software Engineer, Software Developer, Configuration Management Engineer, SEPG implementation group member, reviewer.Activities: software development, application design, requirements elicitation, writing specifications, proposals development, configuration management activities, architecture and design reviewing, requirements reviewing, candidates’ source code reviewing.Environment: C# (.NET Windows Forms, ADO.NET), Visual Studio .NET, Microsoft Visual Studio 6, C, C++, CppUnit, Java, JUnit, JavaScript, Microsoft SQL Server, Rational ClearQuest (also Rational ClearQuest Designer), CVS, Microsoft Source Safe, Bugzilla, Rational RequisitePro, Microsoft SQL Server, Rational Rose, Microsoft Visio, Microsoft IntelliJ IDEA, Borland JBuilder, Borland Together, UNIX shell scripting.Software Engineering Processes: RUP, SWEBOK, CMM.

Development of cryptographical software, technical customer support, writing technical documentation and user guides.Environment: Assembler (Intel, Zilog, Atmel), Pascal, Object Pascal, C, C++, Borland Delphi, Borland C++ Builder, Win32 API, Microsoft Access

Development of cryptographical software for a variety of platforms, certification of 3-rd party GOST cryptography libraries, system and network administration.Environment: Assembler (Intel, Zilog, Atmel), Pascal, Object Pascal, C, C++, Borland Delphi, Borland C++ Builder, Win32 API, Microsoft Access.