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Dmitry Khryukin
Verified Expert in Engineering
Software Developer
Tbilisi, Georgia
Toptal member since March 13, 2020
Bio
Dmitry is a .NET full-stack developer with 12 years of experience. He enjoys working in agile environments and using new technologies. His expertise includes working with legacy code, integrations, migrations, payment gateways, CMS-based websites, and iOS applications.
Portfolio
Self-employed
.NET, ASP.NET, C#, Swift, iOS, Vue, ELK (Elastic Stack), .NET Framework...
ContractPodAi
Vue, .NET, .NET Core, SQL, EKL, Elasticsearch, MongoDB, Microsoft SQL Server...
VCS Foundation
Azure, Microsoft SQL Server, Git, JavaScript, Vue, ASP.NET Core, .NET Core...
Experience
- .NET - 17 years
- C# - 16 years
- Agile Software Development - 12 years
- SQL - 11 years
- Continuous Integration (CI) - 10 years
- Git - 9 years
- Web API - 8 years
- .NET Core - 3 years
Preferred Environment
ReSharper, Visual Studio, Git, JetBrains Rider, Visual Studio Code (VS Code)
The most amazing...
...project I've worked on is an application used by cancer diagnostic clinics in multiple countries across the globe.
Work Experience
Full-stack Web and Mobile Developer
2020 - PRESENT
Self-employed
- Worked on the transition of a large legacy system to a new stack.
- Developed an iOS application to get updates about new public events via web scraping.
- Worked on a video-to-text summarization application utilizing the Whisper ML model.
Technologies: .NET, ASP.NET, C#, Swift, iOS, Vue, ELK (Elastic Stack), .NET Framework, iOS SDK, Architecture, Software Engineering, CI/CD Pipelines, Python, Microsoft Visual Studio, Xcode, RESTFul APIs
Senior Full-stack .NET Developer
2020 - 2024
ContractPodAi
- Designed and developed the new API layer, transitioning the project to the new technology stack.
- Conceived and developed a new document repository structure and optimized it using the ELK stack.
- Designed and created a new event-based logging system.
Technologies: Vue, .NET, .NET Core, SQL, EKL, Elasticsearch, MongoDB, Microsoft SQL Server, Event-driven Architecture, Azure Service Bus, ASP.NET Web Forms, NuGet, API Integration, Research & Critical Thinking, Back-end, Artificial Intelligence (AI), Code Review, API Development, Back-end Development, Large Language Models (LLMs), Full-stack Development, .NET 8, JSON Web Tokens (JWT), .NET 7, ASP.NET Core 7, Data Engineering, AI Automation, Automation, ChatGPT Prompts, ChatGPT, Data Integration, ChatGPT API, Data Scraping, Web Scraping, Front-end, APIs, Azure Cosmos DB, Microservices, REST, JSON, ASP.NET, .NET Framework, Azure SQL, Architecture, Software Engineering, Migration, CI/CD Pipelines, Azure App Service, Data Modeling, Concurrency, Event-driven Programming, Event-driven Design (EDD), Microsoft Visual Studio, Azure DevOps, Cloud, RESTFul APIs
Software Developer
2020 - 2020
VCS Foundation
- Extended and supported the product RESTful API using .NET web API, MS SQL Server, and Azure.
- Supported a complex legacy system with unique product architecture.
- Assisted in the development of cancer diagnostic/vaccination portals using Vue.js.
Technologies: Azure, Microsoft SQL Server, Git, JavaScript, Vue, ASP.NET Core, .NET Core, .NET, LINQ, NuGet, API Integration, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, JSON Web Tokens (JWT), Front-end, APIs, ASP.NET, .NET Framework, Architecture, Software Engineering, CI/CD Pipelines, Large Data Sets, Microsoft Visual Studio, RESTFul APIs
Software Developer
2019 - 2020
Education Service Australia
- Assisted with the design and initial development of new projects.
- Supported old projects and finished required improvements on time.
- Set up a continuous integration environment to improve maintenance.
- Utilized the latest versions of .NET Core and Angular.
- Developed the initial RESTful API layer for the new project using .NET Core, MS SQL Server and Elasticsearch.
- Extended an ASP.NET MVC, MS SQL Server, and KnockoutJS-based project.
Technologies: TeamCity, Subversion (SVN), Swagger, TypeScript, JavaScript, Angular, ASP.NET MVC, .NET Core, LINQ, NuGet, API Integration, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, JSON Web Tokens (JWT), Automation, Front-end, JSON, ASP.NET, .NET Framework, Architecture, Software Engineering, CI/CD Pipelines, Concurrency, Large Data Sets, Event-driven Design (EDD), Microsoft Visual Studio, RESTFul APIs
Software Developer
2017 - 2019
Progressive Enterprise
- Participated in the design and development of new rostering software for the largest supermarket chain in New Zealand.
- Developed a complex sales prediction scheduled service.
- Worked in an agile team using scrum techniques to enable seamless work flows.
- Used the latest versions of .NET Core, Angular, MS SQL Server, Azure and Azure Functions.
- Developed a RESTful API for the project using .NET Core.
Technologies: Azure, TFS, Git, Entity Framework, JavaScript, Angular, Microsoft SQL Server, ASP.NET Web API, .NET Core, LINQ, Reporting, Algorithms, NuGet, API Integration, Back-end, Code Review, API Development, Back-end Development, Algorithmic Trading, Full-stack Development, Automation, Front-end, APIs, REST, JSON, ASP.NET, .NET Framework, Architecture, Software Engineering, Migration, CI/CD Pipelines, Data Modeling, Concurrency, Event-driven Programming, Large Data Sets, Event-driven Design (EDD), Microsoft Visual Studio, RESTFul APIs
Senior .NET Developer
2016 - 2017
Vista Entertainment Solutions
- Developed an internal service framework used for key company projects.
- Created multiple products including a cinema manager and vouchers.
- Collaborated with multiple teams using different languages and frameworks.
- Supported multiple existing projects based on old technologies including AngularJS.
- Used .NET framework, ASP.NET MVC, MS SQL Server, Entity Framework, Angular framework, and vanilla JavaScript across multiple projects.
Technologies: Jenkins, TypeScript, JavaScript, TFS, RabbitMQ, Entity Framework, Microsoft SQL Server, ASP.NET Web API, LINQ, Event-driven Architecture, NuGet, API Integration, Research & Critical Thinking, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, Desktop App Development, Desktop, Front-end, APIs, React, Microservices, REST, JSON, ASP.NET, .NET Framework, Software Engineering, CI/CD Pipelines, Concurrency, Event-driven Design (EDD), Microsoft Visual Studio, Cloud, RESTFul APIs
Senior .NET Developer
2015 - 2016
Reckon
- Worked with ELK stack (Elasticsearch, Kibana, Logstash) and NServiceBus.
- Integrated different payment gateways enabling easier customer-oriented options.
- Designed and implemented a logging system for a distributed product with multiple services.
- Used ASP.NET MVC, MS SQL Server across multiple projects.
Technologies: TFS, Octopus Deploy, TeamCity, NServiceBus, Redis, ELK (Elastic Stack), Kibana, Logstash, Elasticsearch, .NET 4, LINQ, Event-driven Architecture, NuGet, WCF Web Services, API Integration, Research & Critical Thinking, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, Desktop App Development, Front-end, APIs, Microservices, REST, JSON, ASP.NET, .NET Framework, Software Engineering, CI/CD Pipelines, Event-driven Programming, Microsoft Visual Studio, Cloud, RESTFul APIs
Senior .NET Developer
2015 - 2015
HSAGlobal
- Worked in a fully agile team to deliver projects on time.
- Used Test Driven Development (TDD) extensively together with other agile techniques.
- Implemented a web API for the project which was fully covered by tests.
- Used the following tech stack: ASP.NET MVC, Entity Framework, AngularJS, and MS SQL Server.
Technologies: TeamCity, Jira, Git, Entity Framework, SQL Server 2012, ASP.NET Web API, .NET 4, NuGet, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, Front-end, APIs, REST, JSON, ASP.NET, .NET Framework, Software Engineering, CI/CD Pipelines, Microsoft Visual Studio, RESTFul APIs
Senior .NET Developer
2014 - 2015
Atlantis Healthcare
- Utilized the Command Query Responsibility Segregation pattern.
- Delivered presentations about the correct use of source control systems and software development best practices.
- Assisted with the API portion of Atlantis' core product, applying best REST API practices.
- Used the following tech stack: ASP.NET MVC, Nhibernate, MS SQL Server.
Technologies: TeamCity, Git, NHibernate, SQL Server 2012, ASP.NET Web API, .NET 4, NuGet, WCF Web Services, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, Front-end, REST, JSON, ASP.NET, .NET Framework, Software Engineering, Migration, CI/CD Pipelines, Microsoft Visual Studio, RESTFul APIs
.NET and iOS Developer
2012 - 2014
Marker Studio
- Assisted with a range of projects from CMS-based websites and REST APIs to iOS applications.
- Moved the team to a Git version control system while applying best development practices and techniques.
- Integrated various levels of work between different platforms.
- Developed multiple video streaming applications using AWS (S3, CloudFront).
- Developed a Chromecast video streaming iOS application.
Technologies: Jenkins, Chromecast, Mercurial, TFS, Git, JavaScript, Microsoft SQL Server, Amazon CloudFront CDN, Amazon S3 (AWS S3), ASP.NET, .NET, Amazon Web Services (AWS), AWS Lambda, ASP.NET Web Forms, Razor Pages, AWS IoT, WCF Web Services, Research & Critical Thinking, Back-end, Code Review, iOS, API Development, Back-end Development, Full-stack Development, Video Streaming, Front-end, Content Management Systems (CMS), Streaming, REST, Swift, SwiftUI, .NET Framework, Razor, iOS SDK, Software Engineering, CI/CD Pipelines, Microsoft Visual Studio, Xcode, RESTFul APIs
Software Developer
2012 - 2012
Datacom
- Developed the internal service for the largest bank in New Zealand.
- Spearheaded the upgrade on 20-year old legacy code.
- Migrated one of the bank's internal systems from one credit card system to another without service interruption.
- Used the following tech stack: ASP.NET MVC, MS SQL Server, vanilla JavaScript.
Technologies: TFS, CSS, JavaScript, Microsoft SQL Server, Web Forms, ASP.NET MVC, .NET, ASP.NET Web Forms, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, Front-end, ASP.NET, .NET Framework, Razor, Software Engineering, CI/CD Pipelines, Microsoft Visual Studio, RESTFul APIs
Software Developer
2011 - 2012
Engine 6
- Prepared estimates, planned projects, participated in website development and database engineering, and communicated with remote project managers, clients, and front-end developers.
- Used cutting-edge technologies and the most up-to-date best practice.
- Worked in a 100% agile environment in a flat structured team.
- Used NoSQL databases: MongoDB and Apache Solr.
Technologies: Jira, Jenkins, Git, Apache Solr, MongoDB, Microsoft SQL Server, jQuery, ASP.NET MVC 3, .NET, ASP.NET Web Forms, Razor Pages, Research & Critical Thinking, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, RSS Feeds, Selenium, Front-end, ASP.NET, .NET Framework, Razor, Software Engineering, CI/CD Pipelines, Microsoft Visual Studio
Senior Developer
2009 - 2011
Fuse 8
- Transitioned from a junior developer position to the team lead position in two years.
- Worked in an agile team using scrum techniques, pair programming, and TDD.
- Delivered successful projects for companies like Alton Towers (UK’s largest theme park), Cello Electronics (UK’s leading LCD TV manufacturer), and Right Management (Manpower Group).
- Managed a team of six developers and testers, working with remote product owners and designers.
- Mentored junior developers, helping them boost productivity and confidence.
- Supported and developed multiple iOS applicaitons.
Technologies: Jira, CruiseControl, Subversion (SVN), SQL, jQuery, iOS, Web Forms, ASP.NET MVC, .NET, ASP.NET Web Forms, Razor Pages, Research & Critical Thinking, Back-end, Code Review, API Development, Back-end Development, Full-stack Development, RSS Feeds, Data Scraping, Selenium, Web Scraping, Visual Basic, Front-end, Content Management Systems (CMS), Google Maps, ASP.NET, .NET Framework, iOS SDK, Software Engineering, CI/CD Pipelines, Microsoft Visual Studio, Xcode
.NET Developer
2008 - 2009
Promatis
- Developed a Windows app used for large industrial enterprises.
- Participated in the integration process on the client side.
- Worked with end users to adjust software design specific to their needs.
Technologies: VB.NET, C#, Microsoft SQL Server, .NET, Back-end, Code Review, Back-end Development, Full-stack Development, Desktop App Development, Desktop, Visual Basic, .NET Framework, Software Engineering, CI/CD Pipelines, C#.NET WinForms, Microsoft Visual Studio
Experience
Cinema Manager Application
A .NET-based application for cinema managers. I was the back-end developer working in an agile team together with front-end developers and designers. The focus of the app was to significantly improve working speed and usability.
Education
2003 - 2008
Specialist Degree in Applied Mathematics
South Ural State University - Chelyabinsk, Russia
Skills
Libraries/APIs
REST APIs, Entity Framework, Web API, Vue, LINQ, API Development, Facebook API, Google Maps API, jQuery, NServiceBus, React, Google Maps
Tools
Visual Studio, GitHub, Git, Jira, NuGet, Microsoft Visual Studio, GitLab, ReSharper, Jenkins, ChatGPT, Xcode, Auth0, JetBrains Rider, Apache Solr, TFS, Mercurial, Logstash, Kibana, RabbitMQ, Hangfire, Subversion (SVN), ELK (Elastic Stack), Amazon CloudFront CDN, TeamCity, Azure App Service, C#.NET WinForms
Languages
C#, SQL, C#.NET, Swift, JavaScript, CSS, HTML, VB.NET, Objective-C, TypeScript, C++, Visual Basic, Python
Frameworks
.NET 4, ASP.NET MVC, ASP.NET Web API, ADO.NET, Razor Pages, .NET, .NET Core, Angular, ASP.NET, ASP.NET Core, ASP.NET Web Forms, .NET 7, ASP.NET Core 7, Entity Framework Core, .NET 8, JSON Web Tokens (JWT), Selenium, SwiftUI, Razor, iOS SDK, .NET 5, ASP.NET MVC 3, NHibernate, Swagger, AngularJS
Paradigms
Database Design, Microservices, Agile, Unit Testing, Design Patterns, RESTful Development, Agile Software Development, REST, Test-driven Development (TDD), Event-driven Architecture, Microservices Architecture, Pair Programming, Continuous Integration (CI), Automation, Desktop App Development, Event-driven Programming, Event-driven Design (EDD), Mobile Development, Azure DevOps
Platforms
iOS, Azure, AWS Lambda, Docker, Microsoft, Azure Functions, Amazon Web Services (AWS), Umbraco, Visual Studio Code (VS Code), AWS IoT, Desktop
Storage
SQL Server 2014, SQL Server 2016, Microsoft SQL Server, JSON, NoSQL, Redis, Elasticsearch, Azure SQL, SQL Server 2017, Databases, Web Forms, SQL Server 2012, MongoDB, Amazon S3 (AWS S3), Data Integration, Azure Cosmos DB
Other
Coding, Concurrency, MVC Frameworks, Full-stack, APIs, Research & Critical Thinking, Back-end, Code Review, Back-end Development, Full-stack Development, .NET Framework, Architecture, Software Engineering, Migration, CI/CD Pipelines, RESTFul APIs, RESTful Microservices, Ajax, Team Leadership, Azure Service Bus, Reporting, Algorithms, API Integration, Artificial Intelligence (AI), Data Engineering, AI Automation, ChatGPT Prompts, RSS Feeds, Data Scraping, Web Scraping, Front-end, Content Management Systems (CMS), Streaming, Data Modeling, Cloud, Leadership, CruiseControl, Payment Gateways, Chromecast, Serverless, Octopus Deploy, EKL, WCF Web Services, Algorithmic Trading, Large Language Models (LLMs), ChatGPT API, Video Streaming, Large Data Sets
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