Olena Danykh Email and Phone Number

Machine Learning PlatformDuring my tenure as an Application Developer, I worked for a client to develop a Machine Learning Platform, with a primary focus on front-end development. My responsibilities in this role included the development of technical requirements and ensuring the timely delivery of new or modified unique features.Main responsibilities during the development process included, but were not limited to:• Developed client side drop down menus, search bars and drop-down toggles.• Created new and modified existing features and components using React and Angular.• Worked on the configuration for Matomo metrics and their connection to the platform.• Implemented Storybook UI Dev Tool to build source of documentation.• Leaded on the migration process of OpenShift Instance and building Tekton pipeline to automate building process.• Implemented Routers & History in Single Page App (SPA).Azure hosted solution for QuotingFront-end developer role tasked with creating a new application for an auto insurance company that generates quotes for its clients. The application is developed using AngularJS on the .NET platform.Main responsibilities during the development process included, but were not limited to:• Developed and designed SPA user interfaces in Angular using Angular directives.• Worked with HTML5, CSS, Angular, JSON, Async JS for developing user interface.• Worked on some of the features of Angular like new if else syntax, ng-templates, form validators.• Cooperated with the back-end developer in the process of building the RESTful API.• Communicate with the client to understand the requirements of the website, gain experience in project planning.

Trinity is a VS Code extension for previewing Neo4j queries and database structure within the VS Code environment. Trinity intends to remove the need for switching between VS Code and Neo4j Desktop or Neo4j Browser during the development process.My main responsibilities during the development process included, but were not limited to:• Utilized VSCode API to develop an extension which allows developers perform real-time Cypher queries and quickly identify all graph relationships and properties using VSCode Explorer by removing the need for switching between VS Code and Neo4j Browser during the development process.• Integrated TypeScript by enforcing type annotations optimize the debugging process, providing consistent cross-development team code generation.• Wrote a recursive search algorithm to extract all Cypher queries, determining location and position of import declarations to identify possible errors. • Constructed configuration file to store a user’s Neo4j database credentials, persisting custom user views and eliminating the need of continuous login.• Implemented Promises to write the queries output from VS Code Channel to a JSON file, providing intuitive, more readable code with modularity.• Customized Webpack configurations to run all assets, bundling files and dependencies to create a fluid development experience and debugging process.• Integrated Mocha testing into an existing codebase, ensuring a properly working VS Code extension, verifying correct information from the Neo4j database, displaying on the outline and sending to the output Channel to minimize the debugging of new features, and package functionality for engineers.

• Implemented Chart.js library to analyze and generate results, using component level state to incorporate interactive and animated graphs for application.• Employed Webpack to bundle application, modularize code and implement efficient deployment via proxy, decreasing load times and improving UX.• Designed a PostgresQL relational database to create a scalable data model for myriad of users, facilitating a persistent and scalable data store.• Used Express library to design lightweight RESTful APIs by creating routes and middleware controllers that served as liaisons to CRUD operations.

• Created PostgresQL database schema, tables and associations to provide data integrity for complex, relational data model to ensure ACID compliance.• Leveraged Node.js with Express framework, implementing router and middleware design to modularize routes that rendered pages and handle requests.• Utilized Bcrypt encryption to secure client login and passwords and reduce the risk of unauthorized access to sensitive data containing user’s details.• Employed Jest and Supertest to ensure API and middleware endpoints behave as expected and minimize the debugging package functionality.

• Implemented React.js by creating reusable, composable components to handle complex DOM interactions and updates through component-level state.• Implemented Mongoose ORM to generate NoSQL schema and created Express server routes to persist nested documents and enable CRUD operations.• Configured Webpack and Babel to transpile ES6 to ES5, bundle assets and increase codebase modularity for maximum cross-browser compatibility.

• Leveraged Redux-based architecture to maintain the state of each user’s expense, improving scalability by dynamically updating components with predictable state mutations based on user actions and data flow, creating standardized structure across codebase.• Implemented React Router to dynamically render between views, declaring static routes and components to minimize HTTP requests and page reloads. • Developed Node.js server with express middleware layer using RESTful architecture to process, store and display relevant user data from SQL database.• Implemented Redux-Thunk middleware to handle asynchronous function calls, by dispatching actions and managing side-effects caused byasynchronous API calls in order to delay state changes and encourage application efficiency.• Employed Bcrypt to encrypt user data and saved hashed information to an SQL database to enhance security and implement robust authentication.