COING is an experienced software development company, with clients from around the world. The company was founded in 2009. Since then, we have grown from a group of a few close friends into a large organization. Took part in development of Chrome Extension using JavaScript and React. Clockify is the leading time tracking and timesheet software with over 2 million users worldwide. We are a go-to solution for billable hours, productivity analysis, and reporting for everyone from Fortune 500 businesses to independent consultants and freelancers.

Skills: Redux Thunk · React.js · JavaScript

Took part in development of Web app. Developed mobile version for iPad of app for driving rovers. Technologies at FrontEnd: React / Vue / Web Sockets, Redux / Redux-Saga At BackEnd: Django / Python

Took part in development of Web app for publishing of events. Used React for component development. Developed reusable Redux library, applying it to different nodes of Redux State. Developed SSR version of app. Knowledge of Jest/Enzyme, Flexbox, Material UI responsible design.   

Took part in development of Affiliate platform for handling advertising services through the publishing channels. Developed 3 sites with domains for Administrators, Affiliates, Tracking users. Technologies at server: ASP.NET Core 2, C#, SQL Server, Entity Framework Redis, RabbitMQ, IdentityServer4, XUnit testing. At client: ES6, React/Redux/Redux-loop, Webpack, SASS, Jest, Enzyme, Fetch-mock https://github.com/SlavkoPar/sajt Integrated with external services like Facebook and Twitter.

Took part in development of Web Platform application for automated trading aggregating multiple accounts and brokerage feeds into one place. http://onyxtrader.com Thanks to Lightstreamer.com as the real-time bi-directional data delivery we realized Long Polling Push pattern. Technologies at server: ASP.NET Mvc, C#, SQL Server, Entity Framework. At client: jQuery, Knockout.js SPA.  

Took part in development of Life Insurance ASP.NET Web application. Developed several jQuery plugins and widgets. Implemented necessary Web Services calls in C# language.

Developed application for coupon and promotional data for advertisers. Technologies: ASP.NET MVC 3, C#, LINQ, Entity Framework 4.0, Code-First, Scaffolding • Extracted and integrated Lucene Search Modules from Orchard CMS Project Source. • Using Unity as Dependency Injection Container, and Interfaces instead of specific classes, i.e. accessing data through an abstract repository interface, we enabled easy way of unit testing. Used TDD as the method of a design, specifying desired behaviors in the form of unit tests, and then provided implementations to fit. • Developed several jQuery plugins too. • Developed ShoppingCart application using "ASP.NET MVC 2", "LINQ to SQL" and NUnit.

• Developed Windows Service for integration of Active Directory Groups and Users with SharePoint Groups and Users. • Integration of InfoPath Forms services with SharePoint. Developed PowerShell script for automatic unpacking, modifying and packaging of the Forms. • Created custom Moss 2007 Publishing Portal Site Definition with automatic creation of sites structure for extranet project. • Developed Publishing Feature for WSS 3.0 only. • Customization and extension of Content Query Web Part. • Customization of CQWP XSLT files. • Deployment of SharePoint packages using VSeWSS 1.3 and WSPBuilder • Deployment of site columns, custom field types, content type's hierarchies and lists definitions and lists (document libraries) through the SharePoint object model (C#).

Developed Document Management System based on SharePoint WSS 3.0. Site Templates. Doc Libraries with extended audiences. Developed custom Search Web Part (search by custom columns) calling web service "Search.asmx" of Microsoft Search Server 2008 Express. Developed Intranet with sub-sites for collaboration of subsidiaries, projects and teams of the company. New sub-sites based on customized site templates. 

CRM, browser-based application sharing information for the building better customer relationships. Contact tracking (agenda, tasks, meetings, calls, documents, letters), Customer managament, E-mail management, Order management. Developed Components: DataGrid with Custom paging, Sliding NavBar, DropBox Grid Column Technologies: ASP.NET/C#/DHTML/JavaScript/XSLT

Messenger application based on IExplorer, integrated with custom Web Office application (Web Word, Web Excel, ) developed with object oriented Java Script technology. Developed JavaScript TreeView with asynchronous population of nodes using Ajax. Technologies: Java Script Developer, Ajax, XML, XSLT, WSDL services

E-Commerce application for selling computer components over the Internet. Developed OLEDB Connector in C Language for integration of MS SQL Server 7.0 with "OpenShop" product. B2B mappings and catalogs. Technologies: /OpenShop/C/TSQL/HTML/XML/JavaScript

Developed 'HTML Star' editor, presenting hierarchical structure of HTML 4.0 document through the TreeView. TabDialog for proprties. Who knows, maybe we were the first who did it! Technologies: C++, DTD 4.0, HTML, XML

Development of banking apps.