Jakub Duperas

• Developed a SaaS application which is a case management platform (SaaS) based on ASP.NET and Angular • Worked on projects in different sectors (eCommerce, SaaS, etc.) using React, Vue, and Laravel • Used Azure, AWS, and GCP for cloud services • Used both GraphQL and REST API, and wrote unit/snapshot/integration tests for most projects based on Jest, Mocha, Cypress, etc. • Designed database architecture and API based on GraphQL, PostgreSQL, and Nest.js

• Develop 2+ full-stack web applications to analyze and process data for different clients • Ensure applications security and ability to interact with multiple APIs and databases • Design and create a knowledge management platform on a knowledge graph, utilizing a range of technologies, including Node.js, TypeScript, React, and Mobx • Develop and implement a standalone data extraction “agent” and main-application features for a financial product

• Built a gear renting marketplace for creatives using React.js, AWS Lambda, and DynamoDB • Constructed an extensive GraphQL backend for a vendor app using Express.js • Developed a set of functional and UI components based on React.js which can be reused in many other places • Designed dynamic and browser-compatible pages using React, Redux, HTML, CSS (Sass), Flex, Babel, and Sagas • Developed a CRM platform based on microservice architecture with serverless framework and Vue.js

• Developed a REST and WebSockets API using Node.js, WebSockets, MongoDB, and PostgreSQL • Developed a CRM system to manage a tire warehouse using the JavaScript framework • Developed responsive web design in JavaScript using frameworks like Angular and jQuery • Implemented real-time chat application with dynamic chat rooms using Socket.io and built a crypto game • Developed both front-end and back-end of client trading account management features based on Laravel