Roman Matiushchenko, Developer in Kiev, Ukraine
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Roman Matiushchenko

Verified Expert  in Engineering

Software Developer

Location
Kiev, Ukraine
Toptal Member Since
May 22, 2020

Roman has over a decade of proven experience in the development of real-time apps, IoT platform integration, APIs, and designing independent front-end and back-end apps. His preferred tech stack includes C#, .Net Core, JavaScript, Angular, MongoDB, and PostgreSQL among others. Roman has worked in a variety of industries including transportation and healthcare where he provides expertise in eHealth, eCommerce, ERP, CRM, and data management.

Portfolio

Codemotion Ninjas
Deployer, Azure, Vue, Microsoft SQL Server, Web API, Entity Framework...
KDD Digital Healthcare GmbH
CSS, HTML, Angular, Microsoft SQL Server, Web API, Dapper, Entity Framework...
Pancake-Corp LLC
CSS, HTML, Angular, Microsoft SQL Server, Web API, Dapper, .NET Core...

Experience

Availability

Part-time

Preferred Environment

JetBrains, TeamViewer, Zoom, Slack, Skype, Postman, Node.js, SQL Server Management Studio (SSMS), Visual Studio Code (VS Code), Visual Studio, Windows

The most amazing...

...platform I've created was for BodyO; it combines evolutionary integrated AI pods, a multi-level web platform and app, and blockchain enabled rewards solutions.

Work Experience

Senior .Net Developer

2019 - PRESENT
Codemotion Ninjas
  • Developed an intelligent survey system with reports and statistics.
  • Helped archive goals in promotion .Net direction for the Codemotion company.
  • Helped recruits find and provide estimates for .Net projects.
Technologies: Deployer, Azure, Vue, Microsoft SQL Server, Web API, Entity Framework, .NET Core, ASP.NET Core, C#

Tech Lead

2019 - 2019
KDD Digital Healthcare GmbH
  • Developed digital nursing documentation and e-care planning system for IDA.Care.
  • Developed business intelligence application for managers in the hospital to check the latest hospital statistics, money income/outcome flow, doctor’s efficiency, etc for IDA.Net.
  • Led strategic planning to achieve business goals by identifying and prioritizing development initiatives and setting timetables for the evaluation, development, and deployment of all web-based services.
Technologies: CSS, HTML, Angular, Microsoft SQL Server, Web API, Dapper, Entity Framework, ASP.NET Core, C#

CTO

2018 - 2019
Pancake-Corp LLC
  • Developed an IoT health monitoring system that integrates medical devices for data analysis, serious illness prediction, and smart user reports.
  • Led strategic planning to achieve business goals by identifying and prioritizing development initiatives and setting timetables for the evaluation, development, and deployment of all web-based services.
  • Identified opportunities and risks for delivering application services, technology trends, and appropriate technology platforms.
  • Selected and set up a software revision control system, repository, web-based internal communications systems, such as a wiki, blog, chatroom, project management, and bug tracking systems, and software development methodology.
  • Promulgated coding conventions and documentation standards.
  • Reviewed current best practices for the selected web framework and established the initial architecture for the application.
  • Monitored application performance and reviewed any application failures in staging or production.
Technologies: CSS, HTML, Angular, Microsoft SQL Server, Web API, Dapper, .NET Core, ASP.NET Core, C#

Team Lead

2017 - 2018
Glorium Technologies
  • Developed a healthcare EMR system that was rewritten from VB.NET Winforms to a microservices architecture on ASP.NET Core for the Practice Insight project.
  • Developed integrations between the insurance companies integrator, insurance company, and EMR system for NikoHealth.
  • Developed the integration between the billing module of the EMR system and insurance companies integrator for ClotMD.
  • Developed a platform that can measure your main vitals, collect them in one place, make predictions according to these measurements, and advise on fitness and nutrition plans based on your current state for BodyO.
Technologies: CSS, HTML, Angular, PostgreSQL, MySQL, Microsoft SQL Server, Web API, ASP.NET Core, Entity Framework, VB.NET, .NET, C#

C# .NET Developer

2011 - 2016
ExtraCode Ltd.
  • Developed the main system, EnergySuite, to provide capabilities for clients' companies to calculate electricity bills for their customers.
  • Tracked and fixed tasks and bugs with the help of Microsoft Team Services (now Azure DevOps).
  • Improved performance and quality of billing module from 200 bugs per month to 1-2 bugs per year (and only because of a specific client's environment).
Technologies: XSLT, XML, Bootstrap, CSS3, HTML5, Synchronization, Service, DB, Azure, Microsoft SQL Server, C#, ASP.NET MVC 4

C# .NET Developer

2010 - 2011
IT-Enterprise Ltd.
  • Developed part of the finance module of the IT-Enterprise ERP system.
  • Migrated IT-Enterprise ERP system to the .NET platform.
  • Provided the maintenance of the old FoxPro ERP system.
  • Rewrote SQL procedures to increase performance and user experience.
Technologies: C#.NET, Microsoft SQL Server, Oracle, Visual FoxPro

IT-Enterprise ERP System

https://it-enterprise.com/
IT-Enterprise ERP system is a local system focused on the complex automation of enterprises and enterprise groups.
The ERP system provides:
- Optimization of enterprise operations and enterprise business processes reengineering for achieving the strategic business objectives of the enterprise
- Operational control of the financial condition of the enterprise, creation conditions for income growth and the controlled reduction of production costs, operational production cost management
- Improving the quality of work and motivation of the company staff by management tasks automation
- Formalization and control of all enterprise business processes, improve coordination and efficiency of the services and enterprise departments
- Providing the company management and system users with the complete and reliable information about the production process state and the financial activity of the enterprise for in-depth analysis and assessment of the enterprise operations and decision making
- Increasing production capacity, improving customer service, reducing production costs, effectively managing enterprise resources through the implementation of modern MRPII, MPS, and APS production management standards

EnergySuite Billing System

https://my.oe.if.ua/
EnergySuite is a billing system that helps energy companies calculate how much electricity customers have consumed and set the bill for them. It also provides a control for measurement equipment and organization details.

BodyO

https://bodyo.com/
Healthcare, fitness, and nutrition project. The main idea was to create a platform that can measure your main vitals, collect them in one place, make predictions according to them, and advise your fitness and nutrition plans based on your current state.

NikoHealth

https://nikohealth.com/
Platform to streamline order intake, improve scheduling and delivery processes, manage documentation flow, require an end to end inventory control, reduce costs, and increase revenue with simple and intuitive billing and claims processing.

ClotMD

https://clotmd.com/
Management of anticoagulation therapy with Warfarin made simple. ClotMD allows patients and healthcare providers to easily manage the therapeutic use of Warfarin, a Vitamin K Antagonist on a computer or mobile device.

IDA.Care

http://www.kdd-digital.de/
Digital nursing documentation and e-care planning that should
help nurses to get rid of written documentation and use their phones as a digital
analog to provide a better quality of nursing service and help save their time.

Happy at Work

https://happyatwork.se/
The easiest tool on the market to measure well-being and levels of stress in your organization. It continuously evaluates the work environment with simple and insightful questions. This allows you to quickly find negative trends among the organization, and handle issues before it is too late.
2008 - 2014

Master's Degree in Flexible Computerized Systems and Robotics

National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" - Kiev, Ukraine

MAY 2014 - MAY 2016

IBM Integration Bus V9

IBM

Languages

C#, T-SQL (Transact-SQL), HTML5, CSS3, JavaScript, Visual FoxPro, C#.NET, VB.NET, HTML, CSS, XML, XSLT

Frameworks

ASP.NET Core 2, .NET, ASP.NET, .NET 2, ASP.NET MVC 4, Angular, Windows Presentation Foundation (WPF), VB.NET WinForms, ASP.NET Core, .NET Core, Bootstrap

Libraries/APIs

REST APIs, Entity Framework, Windows Forms (WinForms), Twilio API, jQuery, Node.js, Web API, Vue

Tools

Dapper, Skype, Visual Studio, TFS, C#.NET WinForms, Jira, Redmine, Slack, Azure App Service, Postman, Zoom, TeamViewer, JetBrains, Deployer

Paradigms

MVC Design, API Architecture, Design Patterns, RESTful Development, Azure DevOps, REST API Architecture, Serverless Architecture

Storage

MSSQLCE, SQL Server Management Studio (SSMS), Database Performance, Azure Cloud Services, Azure SQL, MySQL, PostgreSQL, Azure Blobs, SQL Performance, SQL Server 2017, Azure Table Storage, Microsoft SQL Server, DB, NoSQL

Platforms

Azure Functions, Visual Studio Code (VS Code), Twilio, Windows, Oracle, Azure

Other

WCF Web Services, DevExpress, DevExpress Controls, Azure Service Bus, Architecture, Serverless, Mediator Pattern, Telerik for WinForms, MSMQ, IBM Enterprise Service Bus (ESB), Service, Synchronization, CTO

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