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 seventeen years of experience creating .NET web applications. He mostly deals with ASP.NET Core and Blazor (C#, .NET Core) software development stack these days. Dmitry has received the Microsoft MVP (Developer Technologies) Award eight 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 Clients
    Software Architecture, APIs, Web Services, SQL, CSS, HTML, JavaScript, C#...
  • Callahan Software
    C#, ASP.NET Core, Stripe API, Swagger, Entity Framework Core, .NET Core
  • Blacc Spot Media
    ASP.NET Core, .NET Core, Swagger UI, Entity Framework Core, AutoMapper...



Saint Petersburg, Russia



Preferred Environment

Windows, Visual Studio

The most amazing...

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


  • Freelance Software Developer

    2012 - PRESENT
    Toptal Clients
    • 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.
    • Implemented automated tests: unit tests, integration tests, functional test, 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 regularly to appropriate audiences.
    • Documented the codebase and technical aspects.
    Technologies: Software Architecture, APIs, Web Services, SQL, CSS, HTML, JavaScript, C#, .NET, ASP.NET Core
  • 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: C#, ASP.NET Core, Stripe API, Swagger, Entity Framework Core, .NET Core
  • 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 established to provide the means to cure cystic fibrosis and ensure that those living with CF live long and productive lives.
    • Designed and implemented API endpoints using .NET Core for React UI app.
    • Fixed bugs and improved the code.
    Technologies: ASP.NET Core, .NET Core, Swagger UI, Entity Framework Core, AutoMapper, Razor Views, SendGrid API, Twilio API, Zendesk API
  • 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: .NET Core, ASP.NET Core, Entity Framework Core, MediatR, xUnit, PostgreSQL, GitLab, GKE, JWT, Google Directory API, AD SSO
  • 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 and 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.
    • Implemented ASP.NET Core View Components to display common UI parts with the possibility to update data 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: ASP.NET Core 2.1, C#, .NET Core 2.1, .NET Standard 2.0, Razor, MVC, DI, Entity Framework Core, ASP.NET Core Identity, ASP.NET Core View Components, NuGet, AutoMapper, SendGrid, JavaScript, Bootstrap, SQL, Azure Storage, xUnit, TOTP, 2FA, VSTS
  • 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.
    • Implemented 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.
    • Implemented real-time internal application notifications based on SignalR.
    • Implemented notifying external parties via SMS, email, and API.
    • Integrated Google Maps geolocation API.
    • Integrated NADA (National Automobile Dealers Association) API.
    • Implemented asynchronous update-able ASP.NET Core view components.
    • Wrote technical documentation.
    Technologies: ASP.NET Core, C#, .NET Core, Razor, MVC, DI, Entity Framework, ASP.NET Core Identity, AutoMapper, SendGrid, Twilio, Zendesk, Quartz.NET, Google Maps API, JavaScript, SignalR, Bootstrap, SQL, Amazon S3
  • Full-stack ASP.NET MVC Developer

    2018 - 2018
    Kalon Creative (via Toptal)
    • Updated ASP.NET Razor views according to new InVision mockups.
    • Adjusted ASP.NET views to be responsive for mobile view as well as for 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: ASP.NET MVC, C#, Entity Framework, PostgreSQL, CSS, HTML, JavaScript, jQuery, Responsive Bootstrap, Visual Studio 2017, BitBucket, TeamWork
  • 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: C#, .NET Core 2.0, .NET Standard 2.0, ASP.NET Core 2.0, Web API, Azure, SQL Server, EntityFramework Core, VSTS, Swagger, Swashbuckle, React, Redux, JavaScript, TypeScript, AutoMapper, xUnit, FluentValidation, CsvHelper, JSON, WebPack, Bootstrap
  • 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.
    • Deployed system modules and components.
    • Implemented an API for UI to manage information in the mortgage servicing and capital markets space.
    Technologies: .NET Core 2.0, ASP.NET Core 2.0, MVC, Web API, C#, JSON, XML, Azure, Amazon S3, SQL, EF Core 2.0, Git, Visual Studio, TFS, Jira
  • .NET Full-stack Developer

    2016 - 2016
    Eurotech Global Sports AG (via Toptal)
    • Developed the server and client-side logic for the accreditation module of IFES system for FIFA events.
    • Secured the components with the appropriate permissions.
    • Implemented the export mechanism for the security data.
    • Implemented the bulk update logic.
    • Participated in the design sessions to discuss and plan the logic implementation.
    Technologies: C#, ASP.NET MVC, ASP.NET Web API, AngularJS, JavaScript, SQL
  • 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: C#, ASP.NET MVC, Web API, JavaScript, AngularJS, Entity Framework, Unity Framework, Serilog, Swagger, SQL Server, Azure Web Apps, Azure Media Services, Azure Search Services, Visual Studio Online, Git, Jira, Confluence
  • Lead/Senior Software Engineer (Telecommunication)

    2014 - 2015
    MetTel (via Toptal)
    • 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 micro framework 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: ASP.NET MVC, C#, .NET, Knockout.js, JavaScript, jQuery, CSS, HTML, Solr
  • Senior C# Developer

    2013 - 2014
    American Mortgage Consultants, Inc. (via Toptal)
    • Designed the software system architecture.
    • 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: C#, .NET, ASP.NET MVC, Web API, JSON, HTML, SQL, Accusoft OCR Components
  • .NET Developer (Remote)

    2012 - 2013
    • Performed full-stack software development for the company's mobile card acquisition service, which is the Russian equivalent of the US Square service.
    • Developed user interface Razor-based pages.
    • Developed in C# the server side business logic, data access code, and unit tests.
    • Implemented parsing packages using OpenIso8583.Net which is a .NET message builder and parser for ISO 8583 financial messages.
    • Worked on customizing card acquisition service UI for specific banks.
    Technologies: .NET, Quartz.NET, NUnit, NHibernate, Castle Windsor, SQL, jQuery, CSS, HTML, Razor, ASP.NET MVC, C#
  • 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 like Levenshtein distance, HTML Diff implementation, etc.
    • Created and maintained the unit tests.
    • Documented the API.
    Technologies: 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 (VB.NET, WinForms) and MS SQL Server technologies, as well as the Agile (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: DataFlux, Microsoft SQL Server, Oracle, HTML/CSS, 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.
    Technologies: Microsoft SQL Server, Windows Communication Framework (WCF), ASP.NET, Obfuscation, Visual Studio Extensibility, C#
  • PhD Student

    2006 - 2006
    Saint-Petersburg State University
    • Developed the software system for a PhD paper on structural geology titled "Automation of Cross Section Building through the Thrust Systems Foreland."
    Technologies: WinForms, Windows GDI+, C#
  • Team Lead, .NET Developer

    2005 - 2005
    • Led projects involving the customization of web services.
    • Developed .NET software using ASP Classic, ASP.NET (WebForms), HTA, and .NET WinForms.
    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 eXP (eXtreme Programming) team.
    • Participated in several ASP.NET (WebForms) projects for client intranets.
    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.
    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.
    Technologies: Microsoft Access, Excel VBA, Visual Basic .NET (VB.NET)


  • Top 1% on Stack Overflow (Other amazing things)

    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 (Development)

    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.

  • 8 Microsoft MVP Awards (Other amazing things)

    "The Microsoft Most Valuable Professional (MVP) Award 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." – Microsoft

  • 28K+ Members Community Coordinator (Other amazing things)

    I have been administrating a fast-growing Facebook group about ASP.NET Core and Blazor on Facebook. Our community has 28,000+ 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, HTML/CSS, XPath, VBScript, Visual Basic .NET (VB.NET), Excel VBA, TypeScript, GraphQL
  • 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, Newtonsoft, 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
  • 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, Open API, 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
  • 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, Apache Solr, CC.NET, VersionOne, Google Kubernetes Engine (GKE), GitLab CI/CD
  • Paradigms

    Unit Testing, Code First, FluentValidation, REST, Test-driven Development (TDD), Dependency Injection, Agile Software Development, Waterfall Development, Extreme Programming, Scrum, Responsive Layout, BEM
  • Platforms

    Android, Windows, Twilio, Azure, Visual Studio Code, Oracle
  • Storage

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

    DI, API Design, EF6 Code First, TFS Work Items, Ajax, Web App Development, Stripe Payments, Quartz.NET, CSV Export, CSV, CSV File Processing, TFS Build & Release Management, WebAssembly, Windows Services, DataFlux, Obfuscation, Web Services, NetAdvantageTM 2003, XCeedComponents, CruiseControl, APIs, Software Architecture, Google Fusion Tables


  • PhD 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

To view more profiles

Join Toptal
Share it with others