Igor Khramtsov
Verified Expert in Engineering
Software Developer
Yekaterinburg, Sverdlovsk Oblast, Russia
Toptal member since April 18, 2016
Igor is full-stack .NET developer with a dozen years of experience building high-load and scalable enterprise web applications on ASP.NET MVC. He also has a deep understanding of the internals of the storage systems such as SQL Server and MongoDB.
Portfolio
Experience
- .NET - 10 years
- C# - 9 years
- T-SQL (Transact-SQL) - 9 years
- Microsoft SQL Server - 9 years
- JavaScript - 9 years
- Microsoft Visual Studio - 9 years
- Windows - 8 years
- JSON - 8 years
Availability
Preferred Environment
Sublime Text, Mercurial, ReSharper, Visual Studio
The most amazing...
...piece of code I have ever written is an asynchronous HTTP server with service proxy over it and smart types binding.
Work Experience
Lead Developer
SKB Kontur
- Developed an application called Prism that helps companies satisfy Russian anti-money laundering legislation.
- Built a RESTful API based on a microservices approach.
- Created a web prototype using React with react-routing, redux, and redux-saga packages.
- Introduced and extended build system Cake as well as administrated TeamCity and Octopus servers.
- Developed functional tests to ensure business logic integrity.
Lead Developer
SKB Kontur
- Developed and supported a commercial legal search system called Normativ which has a full-text search engine and restful API and built upon the ASP.NET MVC development stack.
- Managed a development team (five developers and two testers).
- Implemented the CQRS pattern to the core feature of the service: Questions to experts.
- Administrated continuous integration tool TeamCity.
- Created a lightweight async HTTP server with service proxy. Introduced RabbitMQ message bus.
- Created a RESTful API with authentication layer.
- Created a service for user activity monitoring to track user actions and to build statistics.
Senior .NET Developer
Earthlink (via Toptal)
- Created a unified identity server for the company's web applications for identity management.
- Investigated OpenId Connect and OAuth2 authentication/authorization protocols.
- Integrated with IdentityServer version 4 that implements OpenId Connect authentication protocol.
WPF Programmer
Sitis
- Supported a large WPF application for aggregating and presenting data from the physical sensors.
- Created a module for fast presentation of a large amount of data as charts.
Web Developer
SmartBear
- Supported an application lifecycle management system called Software Planner.
- Created a module for integrating Software Planner with other bug trackers (BugZilla, JIRA, etc.).
- Migrated Software Planner from the old platform VB6 to the .NET platform.
Experience
Normativ
https://normativ.kontur.ruEducation
PhD Degree in Abstract Algebra
Institution of Mathematics and Mechanics - Ekaterinburg
Master's Degree in Applied Mathematics
Ural Federal University - Ekaterinburg
Bachelor's Degree in Turbine Construction
Ural State Technical University - Ekaterinburg
Skills
Libraries/APIs
AMQP, React, Reactive Extensions, ReactiveX, jQuery
Tools
Microsoft Visual Studio, Visual Studio, ReSharper, Mercurial, Sublime Text
Languages
C#, T-SQL (Transact-SQL), JavaScript, Visual Basic, Active Server Pages (ASP)
Frameworks
.NET, ASP.NET MVC, Windows Presentation Foundation (WPF), .NET Core
Paradigms
Test-driven Development (TDD), CQRS, Concurrent Programming, REST, Event Sourcing
Platforms
Windows, Web
Storage
Microsoft SQL Server, MySQL, PostgreSQL, JSON, MongoDB
Other
SOLID Principles, HTTP, Inno Setup, Distributed Systems, Identity Server
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