Sergey Jar Email & Phone Number

Chișinău, Moldova

GovPredict is an American portal that provides all legislative initiatives in the United States in a convenient form. Developed a web application interface based on Zeplin layouts using React and Redux:- Improved the display of lists of bills and senators, adding new data and sorting logic.- In the senator's profile added a list of public acts (laws, amendments) that he is working on, also added search and filtering by his bills.- Added tree comments with links in text to law or senator to bills using the react-mentions library. Links were created automatically when a name was selected in the corresponding pop-up window that appeared when printing ("#law name" or "@senator's name").- Worked on the interface of the payment form.- Created unit tests for components.

Chisinau, Moldova

Danish service providing touch screen software for Scandinavian libraries and shopping centers.Developed the client and server parts of a web application based on mockups from Zeplin. Worked on creating several products for Scandinavian libraries:The electronic shelf - an automated service that displays all books on a specific topic in a library.- Worked on web application interface using vanilla JS.- Added generation of QR code for books using html5-qrcode library.- Added a mechanism for automatic withdrawal and refund of a fee for a book when it is returned to the library on a special shelf with a scanner using the scanner API.- On the server side, I created new endpoints for the API, which gave the client side information about books (availability, reviews, ratings, etc.) from several third-party databases.Building plan - a web application that displays a building plan with key points on it.- Added new interface for maps- Added the ability to select a language in the web application interface. To do this, I changed the logic in the API, supplementing them with translations.Mobile application that displays the availability of books in the library:- Developed an interface in React Native, including the main page and pages for displaying news, profile, etc.- Connected an API that provides information about books with an application so that this application has up-to-date data

Chisinau, Moldova

DotGov Solutions - a US-Moldovan company that provides solutions for document flow automation for government agencies and corporations.Developed using Angular 2-4 the interface of the assembler which creates site for clients.- Worked on the layout and logic of the status page for the document. I have simplified the structure of the components for this page, and also integrated the API for getting data on the state of the document.- Created a tree (recursive) menu for the application. For convenient data display, I added styles and automatic collapse of previously opened menu items.

Chisinau, Moldova

Titanium Software is a Moldovan-Israeli company engaged in the creation of web and mobile applications and games.- Worked on automating the deployment of a web application using ansible and shipit.- Developed APi for the server side of expressjs web applications and worked on user authorization using passportjs.- Worked as a project manager and worked on the architecture and creation of an API for a betting site. Added the logic of winner determination in the competition, and also added unit tests to avoid mistakes in the complex logic of calculating the winner.

Chișinău, Moldova

Hosting provider.- Was halping hosting users in solving technical problems with their sites on shared hosting, VPN (based on XEN, OpenVZ).- Automated the routine processes of transferring sites from third-party hosting platforms using bash scripts.