Ruslan Vidzert

A collection of information services that were developed with a goal of supporting community oncologists as they research genomics-based treatment strategies.

Tasks:
Work with clinical researchers to gather, engineer, organize, and document business, functional, and other system requirements. Create and maintain product roadmaps, feature backlogs, and product documentation. Develop, design, and implement business application logic on front-end and back-end.

Tech stack:
- Platform: Linux, Amazon Web Services.
- Application server: Tomcat.
- DBMS: MySQL, PostgreSQL.
- Technologies and tools: Java 8, Spring, jOOQ, Hibernate, Spring Integration, Spring Batch, Spring Cloud Netflix, Angular, TypeScript, Yarn, Angular Material, DynamicReports.

Essentially a bunch of SOAP web services used by third-party educational companies for the secure passing of information about students among them. These web services allow administrators to withhold real information about students for all companies; they give every student a hashed identifier that will be used as a pseudonym by these companies. The application also contains an administration panel for managing access to these web services and managing all stored data.

Tasks:
Development of SOAP web services and sample client applications for third-party companies, creating an administration panel for managing data for web services.

Tech stack:
- Platform: Linux/Windows
- Application server: Tomcat
- DBMS: PostgreSQL
- Technologies and tools: Java 8, Spring Framework 4, SOAP, Apache CXF, Vagrant, JPA, Spring Data, Spring Data REST, Maven, AngularJS, Gulp, Bower, Less, Git, Liquibase, SOAP UI.

Essentially an app that can run on smartphones, tablets, and computers. It allows friends to buy each other symbolic, monetary, and physical gifts from participating retailers or make donations, either individually or by teaming up, communicating and collaborating within dedicated events. App users can connect to their registered account to view upcoming birthdays or other occasions of friends, send them gifts, and share the news on their walls.

Tasks:
Client side and server side development, integrating with social networks (Facebook and Instagram).

Tech stack:
- Platform: Linux/Windows
- Application server: Tomcat
- DBMS: PostgreSQL
- Technologies and tools: Java 8, Spring Framework 4, Jersey, JPA, Amazon, AngularJS, Gulp, Bower, Sass, Git, Gradle, Liquibase.

An Android app that can be used as a translator. It allows users to translate words/phrases from English to Russian; translations contain illustrations of translated words with popularity indexes (votes numbers). You can choose the best translation and save it in your dictionary at LinguaLeo.com, so after it you will be able to train learned words.

Tech stack:
- Platform: Android
- Technologies and tools: Android SDK, Material design, Bitbucket, Java, Gradle, Retrofit.

Development of a framework for testing an SDK used as a core framework in several intelligent personal assistants and more simple Android applications that have speech recognition functionality. Designed architecture and wrote requirements for testing features.

Tech stack:
- Platform: Android
- DBMS: SQLlite
- Technologies and tools: Java, Android SDK, ADB, Ant, Proguard, Robotium, Android native SDK, proprietary libraries, Jenkins.

This application is a full-featured website for sales. The product provides the opportunity to get discounts on various goods and services.

Tasks:
Development, design, and implementation of business application logic, integration with third-party services and applications, optimization.

Tech stack:
- Platform: Linux/Windows
- Application server: JBoss
- DBMS: PostgreSQL
- Technologies and tools: Java, Servlets, JDBC, JSP, Servlets, - JavaScript, HTML, CSS, jQuery, Bootstrap, Ant, Apache Commons, XML, JSON

The best place to measure, improve, and promote your skills in programming. This application allows to create tests, separate them by categories and pass them. It is a public website with many features oriented on regular users - login via social networks, comments, ratings, etc.

It was written in Java using Spring MVC as a framework.

For front-end I used jQuery and HTML5, with Bootstrap as a framework for styling.

Online shop selling clothing with model, size, and color selection.

Tasks:
Development of business application logic, integration with third-party services and applications, front-end, SEO optimization.

Tech stack:
- Platform: Linux/Windows
- Application server: JBoss
- DBMS: PostgreSQL
- Technologies and tools: Java, Servlets, Web Service, JDBC, JSP, Servlets, JavaScript, HTML, CSS, jQuery, Ant, Apache Commons, XML

Rich-functionality eCommerce system with separate sub-sites for different product lines managed from a centralized CMS. The solution ensures a unified and consistent user experience for both online business managers and the company’s customers, handling both tangible goods and digital downloadable product delivery scenarios.

Tasks:
Client side and server side development, development of a custom desktop application for administrating, integrating with tools for analyzing users activity, working with payment systems.

Tech stack:
- Platform: Linux/Windows
- Application server: JBoss, Jetty
- DBMS: PostgreSQL
- Technologies and tools: Java, Servlets, Web Service, JDBC, JSP, Servlets, JavaScript, HTML, CSS, jQuery, Ant, Apache Commons, XStandard, Xfire, XML, JSON, Log4J, C#.