- Freelance Full-stack DeveloperAxle Web and Hosting (via Toptal)2017 - PRESENT
Technologies: ASP.Net Web API, SQL Server, Webpack, Angular, PostCSS
- Implemented a website for customer management and financial reporting.
- Implemented a back-end for Android and iOS apps.
- Software DeveloperSavernake Capital/Savernake Technology (via Toptal)2017 - 2017
Technologies: FIX Protocol, MSMQ, C#
- Implemented quote subscription and parsing from Ctrader FIX API service.
- Implemented trading connection (orders and positions) for Ctrader FIX API service.
- Smart Contract DeveloperAxle Web and Hosting2017 - 2017
Technologies: Ethereum, Solidity, Angular, Webpack
- Implemented a set of Ethereum smart contracts and libraries in Solidity for Raffle distributed app.
- Implemented automated tests for Ethereum contracts using Truffle framework.
- Implemented a front-end for the distributed app using Webpack, Angular, and PostCSS.
- Freelance Retail Reporting DeveloperSavernake Capital/Savernake Technology (via Toptal)2017 - 2017
Technologies: C#, MySQL, MSMQ, FIX Protocol
- Optimized memory and performance for an existing reporting system.
- Added new order routing and quote integrations to the existing trading system via FIX protocol.
- Added automated testing tools for the existing trading system.
- CTOCompany 732016 - 2017
Technologies: C#, ASP.NET Core, Entity Framework Core
- Developed and deployed infrastructure for continuous integration.
- Developed a custom application-specific mechanism for data synchronization between multiple locations with support for version validation.
- Created a code generator for API controller wrappers for faster integration test development and easier maintenance.
- Implemented custom authentication scheme with session verification, and both cookies and header token authentication.
- Developed automatic website self updates for a farm of sites in customers' locations connected to a single cloud site.
- Freelance PayPal/.NET DeveloperDecoratorsBest (via Toptal)2016 - 2016
Technologies: PayPal, ASP.NET, .NET
- Upgraded existing ASP.NET customer websites with an extensive set of custom controls and forms from .NET 2.0 to .NET 4.5 and to the new PayPal API.
- Freelance Quickbooks Online and Xero to SQL Integration SpecialistAxle Web and Hosting (via Toptal)2016 - 2016
Technologies: C#, QuickBooks, Xero, SQL Server
- Implemented data replication from Xero and QuickBooks online from multiple customers to a single centralized storage.
- CTOKeepteam2014 - 2016
Technologies: ASP.NET, Entity Framework, SQL Server
- Developed scalable architecture for a multi-tenant web application.
- Implemented a universal reporting framework for Entity Framework with Entity SQL.
- Implemented TeamCity build configurations with automated pull request deployment.
- Created a testing framework that supports verification of the entire back-end logic from user authentication to generated email content verification and log validation.
- Developed a membership-based user access control configuration and verification system with per-action and per-object granularity.
- Created an automated deployment system for a web application.
- Implemented integration with Payture and Yandex payment systems with automated integration testing.
- Requirements Owner, Main Developer, QA, and SysadminSelf-employed2011 - 2014
Technologies: .NET, COM, TCP/IP, Protobuf
- Developed integration with the Plaza2 interface of Moscow Exchange (i.e., Russian Trading System exchange) using .NET COM Interop.
- Developed integration with CQG .NET data provider.
- Implemented proprietary high-performance market data and order routing protocols over TCP/IP.
- Deployed and managed a distributed trading system on Windows and Linux platforms.
- Architected and implemented a fully automated high-frequency trading system that operated across several exchanges 24/7 for several years with minimum required maintenance.
- Project ManagerCQG2010 - 2013
Technologies: MS Project, Scrum, PSP
- Managed 25+ software development projects from inception to completion with average size of one man-year.
- Created and maintained detailed project plans.
- Organized regular project status reporting and managed issue escalation in both bottom-up and top-down directions.
- Ensured streamlined risk and scope change management on a day-to-day basis.
- Worked on resource allocation and project task assignments with globally distributed teams.
- Assisted development teams with issues related to software processes.
- Senior Software Developer and Process CoachCQG2006 - 2009
Technologies: C#, C++
- Integrated performance-critical order routing controls into a futures trading .NET application.
- Created instant messenger for a CQG client and customized Coversant IM Server.
- Implemented a high-performance guaranteed message delivery library in C++ for CQG order routing server.
- Consulted development teams on the subject of software development processes.
- Maintained performance critical real-time data servers providing low latency market data for thousands of clients.