Dejan Mastilovic

- Implemented a responsive React website from scratch for a social media startup - Built a React web app using hooks, Redux, best practices - Constructed a REST and Socket API in Node.js (using the Express.js framework and Socket.IO library) - Built an eCommerce back-end using NestJS, integrated PostgreSQL and used TypeORM - Developed an analysis feature and provided various results visualized via React, D3 and Highcharts libraries - Created an eCommerce website based on Vue.js, Laravel and Contentful

- Designed dynamic and browser compatible pages using React, Redux, Sass, Webpack - Created a React front-end admin dashboard for complex table data visualization with user-friendly search features - Built real-time trading UI with high performance using modern socket-cluster technology - Developed price analysis platform depend on Price api and Google Merchant api with Angular and Node - Developed a custom eCommerce website taking all products from advertisers based on Laravel

- Used Node.js modules like grunt, bower to integrate with designs and requirements and to interact with the databases - Created web-based calculators using PHP, jQuery, and Ajax to show return on investment and savings - Developed Front-end UI using HTML, CSS and JavaScript - Used JavaScript and jQuery for building several functionalities of the application Tech stack: Node.js, SQL/NoSQL DB, PHP, jQuery, Ajax

- Implemented messages and files sending logic using platform API calls - Implemented messages and files receiving logic using webhooks and events subscription - Implemented an asynchronous long-polling service for receiving chat events - Made it multi-threaded using various concurrent and parallel programming techniques - Helped front-end developers with jQuery and other JS + HTML + CSS tasks - Implemented app analytics, designed a lot of complex database queries, and performed optimization and caching