Dmitry Pavlov, .NET Developer in Saint Petersburg, Russia
Dmitry Pavlov

.NET Developer in Saint Petersburg, Russia

Member since June 14, 2012
Dmitry is a top-notch developer with over twenty years of experience creating .NET web applications. He mostly deals with ASP.NET Core and Blazor (C#, .NET Core) software development and architecture design these days. Dmitry has received the Microsoft MVP (Developer Technologies) Award 9 times and is a capable community leader. He has also received a Master of Science degrees in computer science and structural geology and modeling. Clients call him "The Coding Machine."
Dmitry is now available for hire


  • Toptal
    Visual Studio, ASP.NET Web API, Software Architecture, APIs, Web Services...
  • Oxford VR
    ASP.NET Core, .NET Core, C#, Azure Service Bus, Entity Framework Core...
  • Callahan Software
    Visual Studio, API Design, Software Architecture, Stripe Connect API...



Saint Petersburg, Russia



Preferred Environment

MassTransit, Blazor, ASP.NET Core, .NET Core, C#, .NET, Visual Studio, Windows

The most amazing...

...project I have ever participated in was the accreditation system for FIFA events.


  • Freelance Software Developer

    2012 - PRESENT
    • Provided ongoing services as a remote ASP.NET Core/C#/.NET developer for Toptal clients.
    • Designed architecture and implemented ASP.NET and Web API applications.
    • Designed and implemented data storage; documented the codebase and technical aspects.
    • Implemented automated tests: unit tests, integration tests, functional tests, and automated UI tests.
    • Explored the most effective technologies and came up with ideas to achieve the client's business requirements and goals.
    • Reported status updates to appropriate audiences regularly.
    Technologies: Visual Studio, ASP.NET Web API, Software Architecture, APIs, Web Services, SQL, CSS, HTML, JavaScript, C#, .NET, ASP.NET Core
  • Senior .NET Developer

    2021 - 2021
    Oxford VR
    • Developed .NET Core back-end software to automate VR therapy and revolutionize mental health and wellness by improving access to personalized services through technology.
    • Integrated microservices participating in the automated distributed platform.
    • Implemented several third-party systems API integrations, such as Acuity, Welkin, Wheel, Stripe, Amplitude, Elation, LuxSci, and Twilio.
    • Participated in Agile team discussions and code reviews; took part in cross-team meetings in UK and US.
    • Implemented auto-generation of API clients for .NET microservices.
    • Assisted in establishing CI/CD pipelines on DevOps Azure.
    • Completed HIPAA Security and HIPAA Awareness for business associates courses.
    Technologies: ASP.NET Core, .NET Core, C#, Azure Service Bus, Entity Framework Core, OpenAPI, API Integration, Swagger, Stripe API, Twilio API, LuxSci API, Acuity API, Wheel API, Elation API, Welkin API, Azure Functions, Message Bus, Distributed Systems, ASP.NET Core MVC, Azure DevOps, NSwag, Unit Testing, Dependency Injection
  • Senior .NET Developer

    2020 - 2020
    Callahan Software
    • Integrated online payments via Stripe API with connected accounts to the Child Care Seer platform.
    • Implemented finance-related API endpoints logic for online and offline payments for the Child Care Seer platform.
    • Implemented handling the Stripe webhook event callbacks for asynchronous payment flows and managing connected Stripe accounts for the platform clients.
    • Configured and maintained Stripe accounts for development, testing, and production environments.
    • Participated in business analysis team discussions, code reviews, and common meetings for the agile software development process.
    • Migrated codebase to .NET Core 3.0, assisted in establishing CI/CD pipelines for back-end code.
    Technologies: Visual Studio, API Design, Software Architecture, Stripe Connect API, ASP.NET Web API, .NET, .NET Core, Entity Framework Core, Swagger, Stripe API, ASP.NET Core, C#
  • Senior .NET Developer

    2019 - 2019
    Blacc Spot Media
    • Developed a .NET Core application back end for the Cystic Fibrosis Foundation, a 501 nonprofit organization in the United States.
    • Designed and implemented API endpoints using .NET Core for React UI app.
    • Addressed existing code issues and performed code refactoring and improvements.
    Technologies: Visual Studio, ASP.NET Web API, .NET, C#, Zendesk API, Twilio API, SendGrid API, Razor, AutoMapper, Entity Framework Core, Swagger, .NET Core, ASP.NET Core
  • Senior .NET Developer

    2018 - 2019
    • Ramped up .NET expertise in Berlin's development center and mentor Dunnhumby full-timers on the server-side aspects of .NET Core application development.
    • Designed architecture for server-side APIs with a clean architecture approach.
    • Integrated with company hybrid authentication and authorization for AD SSO/Google Directory API.
    • Designed ASP.NET Core integration tests with xUnit and WebApplicationFactory.
    • Developed server-side microservice APIs with external and cross-component dependencies in a Kubernetes environment.
    Technologies: Visual Studio, Software Architecture, GitLab CI/CD, ASP.NET Core 2, ASP.NET Web API, .NET, C#, Single Sign-on (SSO), Google Apps Directory Sync (GADS), JSON Web Tokens (JWT), Google Kubernetes Engine (GKE), GitLab, PostgreSQL, xUnit, MediatR, Entity Framework Core, ASP.NET Core, .NET Core
  • Full-stack ASP.NET Core Developer

    2018 - 2018
    Startup (via Toptal)
    • Implemented a dashboard web application from scratch based on ASP.NET Core 2.1 with Razor views, including dependency injection (DI) and Entity Framework Core, identity user, role, and claims management.
    • Used SB Admin 2 template for the admin panel with Ajax callback and modal popups for CRUD operations over the entities.
    • Integrated ASP.NET Core View Components to display common UI parts enabling data update via jQuery unobtrusive Ajax.
    • Configured code-first EF Core 2.1 migrations and automated the database recreation process, which updates schema and populates mandatory and sample data for manual smoke tests on the UI.
    • Implemented 2FA logic to use TOTP authenticator apps from Google and Microsoft for iOS, Android, and Windows Phone devices.
    Technologies: Visual Studio, Software Architecture, ASP.NET Core, ASP.NET Web API, Visual Studio Team Services (VSTS), Authentication, xUnit, Azure Blob Storage API, SQL, Bootstrap, JavaScript, SendGrid, AutoMapper, NuGet, ASP.NET Core MVC, ASP.NET, Entity Framework Core, DI, Model View Controller (MVC), Razor, .NET, .NET Core, C#, ASP.NET Core 2
  • Senior Full-stack Developer

    2018 - 2018
    NKR Managing General Agent (via Toptal)
    • Designed an ASP.NET Core application architecture for a digital claims management software application that leverages digital data from connected vehicles to automate property and casualty claims processes.
    • Implemented model view controller (MVC) architecture with ASP.NET Core Razor views, dependency injection (DI) and Entity Framework (EF Core) according to UI layouts and business requirements.
    • Integrated schema with a code-first Entity Framework core for SQL Server in AWS.
    • Implemented a console for data emulation, test damage calculation, and application configuration.
    • Actualized the implementation of real-time internal application notifications based on SignalR.
    • Implemented notifying external parties via SMS, email, and API. Integrated Google Maps geolocation API.
    • Integrated National Automobile Dealers Association (NADA) API.
    • Implemented asynchronous update-able ASP.NET Core view components.
    Technologies: Visual Studio, API Design, ASP.NET Core MVC, Google Fusion Tables, ASP.NET Core 2, ASP.NET Web API, .NET, AWS S3, SQL, Bootstrap, SignalR, JavaScript, Google Maps API, Quartz.NET, Zendesk, Twilio, SendGrid, AutoMapper, ASP.NET, Entity Framework, DI, Model View Controller (MVC), Razor, .NET Core, C#, ASP.NET Core
  • Full-stack ASP.NET MVC Developer

    2018 - 2018
    Kalon Creative
    • Updated ASP.NET Razor views according to new InVision mockups.
    • Adjusted ASP.NET views to be responsive for the mobile view and other screen sizes using Bootstrap.
    • Optimized back-end logic to avoid performance issues and comply with the new UX approach on the front end.
    • Regenerated POT/PO internationalization files for string resources used for ASP.NET MVC application.
    • Participated in code reviews of the pool requests for the branches before merging them to QA and Production environments.
    Technologies: Visual Studio, ASP.NET Web API, .NET, Teamwork, Bitbucket, Visual Studio 2017, Bootstrap, jQuery, JavaScript, HTML, CSS, PostgreSQL, Entity Framework, C#, ASP.NET MVC
  • Senior .NET Developer

    2017 - 2018
    Tusmor, Ltd. (via Toptal)
    • Designed and implemented Bank Engine API using ASP.NET Core Web API.
    • Configured continuous integration tasks to build and deploy API components to different Azure environments.
    • Designed corresponding database schema for Azure SQL Server.
    • Implemented unit tests using an in-memory database approach as well as integration tests for API endpoints.
    • Configured API Explorer using Swagger UI via Swashbuckle package.
    • Designed and implemented a simple React/Redux based UI for interacting with the API.
    Technologies: Visual Studio, API Design, Software Architecture, ASP.NET Core MVC, ASP.NET Core, ASP.NET Web API, ASP.NET MVC, Bootstrap, Webpack, JSON, CsvHelper, FluentValidation, xUnit, AutoMapper, TypeScript, JavaScript, Redux, React, Swashbuckle, Swagger, Visual Studio Team Services (VSTS), Entity Framework, Microsoft SQL Server, Azure, Web API, ASP.NET Core 2, .NET, .NET Core, C#
  • Senior .NET Developer

    2017 - 2017
    Ascension Data and Analytics (via Toptal)
    • Developed the workflow to interact with an external OCR and machine learning system via API.
    • Designed and implemented a background service for maintaining the queue and message pooling.
    • Developed plugin-based architecture for processing queue messages.
    • Integrated and deployed the system modules and components continuously.
    • Implemented an API for UI to manage information in the mortgage servicing and capital markets space.
    Technologies: API Design, Software Architecture, ASP.NET Web API, ASP.NET MVC, .NET, Jira, TFS, Visual Studio, Git, Core, SQL, AWS S3, Azure, XML, JSON, C#, Web API, Model View Controller (MVC), ASP.NET Core 2, .NET Core
  • .NET Full-stack Developer

    2016 - 2016
    Eurotech Global Sports AG
    • Developed the server and client-side logic for the accreditation module of the IFES system for FIFA events.
    • Secured the components with the appropriate permissions. Implemented the bulk update logic.
    • Implemented the export mechanism for the security data.
    • Participated in the design sessions to discuss and plan the logic implementation.
    Technologies: Visual Studio, API Design, .NET, SQL, JavaScript, AngularJS, ASP.NET Web API, ASP.NET MVC, C#
  • Full-stack Web Developer

    2016 - 2016
    Fitness Startup (via Toptal)
    • Developed a web application using ASP.NET MVC and Web API with an AngularJS-based client side.
    • Automated live streaming using Azure Media Services.
    • Built website content indexing and search using Azure Search Services.
    • Processed background tasks by events-driven Azure Web Jobs.
    • Developed back-end features using dependency injection principle for MVC controllers, services, and repositories.
    • Conducted unit testing using the mocks and end-to-end testing of exposed API.
    • Documented the API with Swashbuckle (.NET port of Swagger UI).
    Technologies: Visual Studio, ASP.NET Web API, .NET, Visual Studio Online (VSO), Azure Search, Azure Media Services API, Azure Websites, Serilog, Unity, Confluence, Jira, Git, Microsoft SQL Server, Swagger, Entity Framework, AngularJS, JavaScript, Web API, ASP.NET MVC, C#
  • Lead/Senior Software Engineer (Telecommunication)

    2014 - 2015
    • Implemented a Knockout-based user interface for several modules of the control management panel.
    • Implemented client-side logic in JavaScript which manages the nested grids and single page history navigation.
    • Developed a microframework for requesting information from Solr API and safe parsing of JSON data in C#.
    • Implemented Web API services and corresponding business logic.
    • Created and maintained unit tests for verification of Web API service controller actions.
    Technologies: Visual Studio, Apache Solr, ASP.NET Web API, Solr, HTML, CSS, jQuery, JavaScript, Knockout.js, .NET, C#, ASP.NET MVC
  • Senior C# Developer

    2013 - 2014
    American Mortgage Consultants, Inc. (via Toptal)
    • Designed the software system architecture for the automated process of the real estate valuation.
    • Developed several components for the automatic recognition and processing of scanned forms.
    • Implemented page detection and field value extraction business logic for scanned mortgage documents.
    • Created and maintained unit tests covering the application business logic.
    • Implemented UI for interacting with the OCR system via API services. Implemented a self-documented JSON-based Web API.
    Technologies: Visual Studio, API Design, ASP.NET Web API, OCR, SQL, HTML, JSON, Web API, ASP.NET MVC, .NET, C#
  • .NET Developer (Remote)

    2012 - 2013
    • Performed full-stack software development for the company's mobile card acquisition service, the Russian equivalent of the US Square service.
    • Developed Razor-based user interface for the merchant sites.
    • Developed in C# the server-side business logic, data access code, and unit tests.
    • Implemented parsing packages using OpenIso8583.Net, a .NET message builder and parser for ISO 8583 financial messages.
    • Worked on customizing card acquisition service UI for specific banks.
    Technologies: Visual Studio, ASP.NET Web API, .NET, Quartz.NET, NUnit, NHibernate, Castle Windsor, SQL, jQuery, CSS, HTML, Razor, ASP.NET MVC, C#, POS, Prepaid Debit Cards, Credit Cards, ISO 8583
  • Team Lead, .NET Developer

    2011 - 2012
    • Worked full-time as a remote team leader for the GroupDocs Comparison project for (part of the Aspose family).
    • Developed an ASP.NET MVC-based web application for comparing office documents.
    • Developed and maintained the server-side logic for comparing office documents.
    • Did R&D for finding suitable comparison algorithms such as Levenshtein distance and HTML Diff implementation.
    • Created and maintained the unit tests as well as the documentation.
    Technologies: Visual Studio, Software Architecture, ASP.NET Web API, .NET, OpenXML, JSON, Windows Communication Framework (WCF), Aspose Components, C#, jQuery, ASP.NET MVC
  • Senior .NET Developer, Tech Lead, Project Manager

    2008 - 2011
    Exigen Services
    • Led technical projects for Total Objects, a company involved in insurance brokering and reinsurance software systems.
    • Used .NET such as VB.NET and WinForms, MS SQL Server technologies, and the Agile and Scrum framework throughout the development process.
    • Developed websites in the Scrum framework using .NET, Oracle, MS SQL Server, and DataFlux data management technologies.
    • Worked as a senior .NET developer for T-Mobile Netherlands, one of the largest mobile telephone operators in the country.
    • Implemented the Waterfall development paradigm using C#, WinForms, ASP.NET (WebForms), WCF, XML/XSLT, and Oracle technologies.
    • Promoted to project manager, overseeing several projects for the company.
    Technologies: CSS, Visual Studio, ASP.NET Web API, ASP.NET MVC, .NET, DataFlux, Microsoft SQL Server, Oracle, HTML, XML/XSLT, Windows Services, Windows Communication Framework (WCF), ASP.NET, C#
  • Software .NET Developer (Remote)

    2006 - 2008
    SharpStyle Labs
    • Created SharpStyle Neutron, a piece of software that allows developers to write ActionScript code from within Visual Studio 2005 using Visual Studio SDK.
    • Participated in a ReviewBasics project with ASP.NET (WebForms), conducting collaborative market research.
    • Developed video conversion web services using the Turbine Video Conversion SDK.
    • Created and maintained the unit tests, as well as the documentation.
    Technologies: Visual Studio, ASP.NET MVC, .NET, Microsoft SQL Server, Windows Communication Framework (WCF), ASP.NET, Obfuscation, Visual Studio Extensibility, C#, Abstract Syntax Trees (AST), Parsers, ANTLR, Flash ActionScript
  • Ph.D Student

    2006 - 2006
    Saint Petersburg State University
    • Developed the software system for the Ph.D paper on structural geology titled "Automation of Cross Section Building through the Thrust Systems Foreland."
    • Visualized different types of geological data.
    • Performed spline geometric calculations automation.
    Technologies: WinForms, Windows GDI+, C#, 2D Modeling, 3D Modeling
  • Team Lead, .NET Developer

    2005 - 2005
    Bridge-Quest Labs
    • Led projects involving the customization of web services.
    • Developed .NET software using ASP Classic, ASP.NET (WebForms), HTA, and .NET WinForms.
    • Built and maintained the online learning platform.
    Technologies: Visual Studio, Perforce, Visual SourceSafe, Microsoft SQL Server, NAnt, NUnit, Web Services, CSS, HTML, JavaScript, VBScript, ASP, XPath, XSLT, XML, C#, ASP.NET
  • Software .NET Developer

    2004 - 2005
    StarSoft Development Labs
    • Worked as a member of the eXtreme Programming (eXP) team.
    • Participated in several ASP.NET (WebForms) projects for client intranets.
    • Created and maintained unit tests and technical documentation.
    Technologies: CSS, HTML, XPath, XSLT, XML, JavaScript, CruiseControl, NAnt, NUnit, Microsoft SQL Server, ASP.NET Web Forms, C#
  • Software .NET Developer

    2003 - 2004
    STEP Technologies
    • Helped develop a client-server system for handling automated document translation, incorporating interconnected WinForms and Web Parts.
    • Tested units with a test-first development approach which is also known as TDD.
    • Implemented in C# the translation package containers receiving and sending logic.
    Technologies: NUnit, Microsoft Access, Microsoft SQL Server, XCeedComponents, NetAdvantageTM 2003, WinForms, C#
  • Geological Engineer, Software Developer

    2000 - 2001
    Lengiprotrans OJSC
    • Automated all scientific MS Excel-based calculations.
    • Performed calculations for statistics, diagrams of load, and others.
    • Built and maintained VBA macro collection to perform common engineering calculations in the department.
    Technologies: Microsoft Access, Excel VBA, Visual Basic .NET (VB.NET)


  • Top 1% on Stack Overflow

    Stack Overflow is the largest, most trusted online community of developers where I share my knowledge about C#, .NET, ASP.NET MVC, WebAPI, ASP.NET Core, JSON, JavaScript, Visual Studio, and other topics I am an expert in.

  • OpenAPI (Swagger) Connected Service

    I have created and keep working on this open-source project in my spare time. OpenAPI (Swagger) Connected Service is a free Visual Studio extension to generate C# HttpClient code for OpenAPI (formerly Swagger API) web service with NSwag toolset.

  • 9 Microsoft MVP Awards

    Since 2008, I have been awarded the Microsoft MVP award nine times. The award, according to Microsoft, is "our way of saying thank you to exceptional, independent community leaders who share their passion, technical expertise, and real-world knowledge of Microsoft products with others."

  • 35K+ Members Community Coordinator

    I have been administering a fast-growing community about ASP.NET Core and Blazor on Facebook. Our community has more than 35K members on board. I moderate daily posts and share the most amazing articles.

  • .NET Best Practices and Tips by Toptal Developers (Publication)
    This resource contains a collection of .NET best practices and tips provided by our Toptal network members.


  • Languages

    C#, JavaScript, C#.NET, XSLT, XML, ASP.NET Razor, CSS, HTML, SQL, XML/XSLT, XPath, VBScript, Visual Basic .NET (VB.NET), Excel VBA, TypeScript, GraphQL, Flash ActionScript
  • Frameworks

    .NET, ADO.NET, ASP.NET, ASP.NET MVC, ASP.NET MVC 3, ASP.NET MVC 5, ASP.NET MVC 6, Windows Communication Framework (WCF), Json.NET, Razor Pages, ASP.NET Identity, NUnit, ASP.NET Core 2, .NET Core, MVC Razor, Razor, ASP.NET MVC 4, .NET 4, ASP.NET Core, ASP.NET Web API, Newtonsoft JSON, Swagger, Knockout.js, Visual Studio Extensibility, ASP.NET Core MVC, Blazor, Entity Framework Core, .NET 5, Redux, Bootstrap, Bootstrap 3+, Kendo UI, Telerik Kendo UI, AngularJS, NHibernate, ASP, ASP.NET Web Forms, Unity, JSON Web Tokens (JWT)
  • Libraries/APIs

    Web API, Twilio API, SendGrid API, Web API 2, jQuery DataTables, LINQ, API Development, Moq, Fluent API, JSON API, Visual Studio SDK, SignalR, AutoMapper, jQuery, MediatR, OpenAPI, Stripe API, Stripe Connect API, Stripe, Entity Framework, Chart.js, Moment.js, Zendesk API, Google Maps API, React, Selenium WebDriver, Aspose Components, Managed Extensibility Framework (MEF), PayPal API, Windows GDI+, WinForms, Azure Media Services API, CsvHelper, Azure Blob Storage API
  • Tools

    Microsoft Visual Studio,, LINQ to SQL, MSTest, VSTest, xUnit, ReSharper, Jira, SQL Management Studio, Visual Studio 2019, Visual Studio, SendGrid, Azure DevOps Services, Bitbucket, Perforce, Git, Visual Studio Online (VSO), Subversion (SVN), TFS, MSBuild, Asana, GitLab, Hangfire, NAnt, Visual SourceSafe, Microsoft Access, Castle Windsor, Solr, Confluence, Azure Search, Webpack, NuGet, Google Apps Directory Sync (GADS), Apache Solr, CC.NET, VersionOne, Google Kubernetes Engine (GKE), GitLab CI/CD, ANTLR, GIS
  • Paradigms

    Web Architecture, Unit Testing, Code First, FluentValidation, REST, Test-driven Development (TDD), Dependency Injection, Agile Software Development, Waterfall Development, Extreme Programming, Scrum, Responsive Layout, Model View Controller (MVC), BEM, Azure DevOps
  • Platforms

    Windows, Twilio, Azure, Visual Studio Code, Azure Functions, Visual Studio 2017, Zendesk, Oracle
  • Storage

    OpenXML, JSON, Azure SQL, AWS S3, PostgreSQL, Azure SQL Databases, Azure Queue, Azure Blobs, Azure Websites, MySQL, Microsoft SQL Server, Google Cloud
  • Other

    Software Architecture, DI, API Design, EF6 Code First, TFS Work Items, Ajax, Web App Development, Stripe Payments, API Integration, Distributed Software, Quartz.NET, CSV Export, CSV, CSV File Processing, TFS Build & Release Management, WebAssembly, Acuity API, Wheel API, Elation API, Message Bus, Distributed Systems, NSwag, Windows Services, DataFlux, Obfuscation, Web Services, NetAdvantageTM 2003, XCeedComponents, CruiseControl, APIs, OCR, Serilog, Core, Visual Studio Team Services (VSTS), Swashbuckle, Teamwork, Authentication, Single Sign-on (SSO), MassTransit, Google Fusion Tables, Azure Service Bus, LuxSci API, Welkin API, POS, Prepaid Debit Cards, Credit Cards, ISO 8583, Abstract Syntax Trees (AST), Parsers, 2D Modeling, 3D Modeling, Geology, Oil & Gas, Computer Networking, Networks, Computer Science, Cisco, OSI Model


  • Ph.D in Structural Geology and Modeling
    2004 - 2007
    Saint Petersburg State University - St. Petersburg, Russia
  • Master's Degree in Computers Systems and Networks
    2001 - 2004
    Saint Petersburg State Polytechnical University - St. Petersburg, Russia
  • Master's Degree in Structural Geology
    2001 - 2003
    Saint Petersburg State University - St. Petersburg, Russia
  • Cisco Certified Network Associate in Computer Science
    2001 - 2002
    Cisco Networking Academy - Online
  • Bachelor's Degree in Engineering Geology
    1997 - 2001
    Saint Petersburg State University - St. Petersburg, Russia


  • ASP.NET Core Expert
  • ASP.NET Core: Razor Pages
    LinkedIn Learning
  • Learning ASP.NET Core MVC
    LinkedIn Learning
  • ASP.NET Core Identity Deep Dive
  • Getting Started with OAuth 2.0
  • Ethereum Developer Masterclass: Build Real World Projects
  • Ethereum Developer Masterclass: Build Real World Projects
  • Blockchain: Beyond the Basics
    LinkedIn Learning
  • Surveying Blockchain Technologies for Enterprise
  • ASP.NET Core: Test-Driven Development
    LinkedIn Learning
  • ASP.NET Core: Security
    LinkedIn Learning
  • Microservices Architecture
    MAY 2017 - PRESENT
  • ASP.NET Core with Visual Studio 2017
    MARCH 2017 - PRESENT
    Microsoft Virtual Academy

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