JavaScript development portfolio

Document Workflow System is divided into 2 subsystems. The first one is responsible for document management: the users can upload, edit, publish, store, and delete files. The second one is aimed at document quality control. It helps the users check files and get results and statistics of these checks. Client One of the large EU-based state agencies. Industry Workflow automation, document management, digitization. Challenge The...

KeyToPortal is a service that allows people to log in to their favorite portals and platforms using their phones. The users go to the authorization page, enter the code in the mobile app and continue using all the features of the portal. The app also has an admin panel to manage users who have access to the portals, as well as to view statistics. Client...

The challenge was to create an application, which allows construction companies to showcase apartments or offices under construction. The app displays a general information about the company: goals, objectives, ideology, company's history and provides a information on completed, current and planned projects of the company. Also, it illustrates the characteristics of existing construction projects and builds the company's image through the use of high-quality multimedia...

The project involves creation of insurance company’s website. The website allows customers to look through the company’s services, calculate the insurance cost, create offers and download pdf-documents. The website controls access to certain areas and features of the site through Access Control Level mechanism called groups. Certain groups have certain access level features and they are directly related to the creation, editing and publishing of...

The challenge was to create an application to simplify the tasks of data center automation. Its client-side web part supports desktop browsers and mobile and tablet browsers. Applications' modern UI simplifies data center tasks management. To work with virtual servers, you can create hypervisors. Also, you can perform server authentication on the BSA server. You can run the execution of the job on operating systems...

The project is a service for finding a car with flexible settings. Main functionality: Sign in / sign up Multiple access levels Car search by make, year, mileage, class, VIN, location, etc. Detailed information/price about the car List of car options Last searched cars Users can list car’s defects and get a price for it. You can tag the state of any car part with...

The challenge was to develop a widget for displaying cryptocurrency market dynamics. The widget was created using the ReactJS framework as a Single page application. Redux was used to store the state of the widget and market data. The visual part is implemented using the Highchart library. Data collection from third-party sources is organized through the REST API. Users of the application can be identified...

The challenge was to develop an application to track market changes based on data from various exchanges and form customized investment portfolios. Throughout the process of database structure development, we have taken into account various market entities such as Coins, Exchanges, Tokens, ICOs, Funds, Crypto Funds, etc. These entities may have child entities. To store all types of entities, we have implemented a universal table...

Sinaps is a system that allows you to determine the location of an object in real time. The system has become an integral part of healthcare. It is used in nursing homes and hospitals and based on RFID technology and a cloud-based security management system. RFID (radio-frequency identification) is a technology whereby a reader captures digital data via radio waves. RFID technology in the healthcare...

Service for planning and organizing events with several available dates to choose. Participants can vote for the date more convenient for them. There are 3 types of votes — “can attend”, “maybe” and “can’t attend”. Event creator specifies participants, location, date and time, organizers of the event. There are also additional options available, which allows limiting user’s vote options to “yes” and “no” only, to...

Fasivery is a service which combines restaurants and food delivery services into a single order system. It includes two clients and a server part. Users can place an order from the offered restaurants using a single personal cabinet. They can view past orders and don't have to re-enter contact information. The application is available in English and Italian. The service consists of three components: A...

This mobile application is a social network created to help students get into top colleges and to study for tough courses. You have to register and verifies email. Then you get access to the user page with information about the posts, subscriptions, subscribers, groups, etc. You can create lessons with video and photo attachments. Other users can view, comment and subscribe to news. The number...