Denis Orehovsky Email & Phone Number

- Leading and managing development teams to drive measurable results by effectively delegating tasks and setting clear goals.- Writing efficient and maintainable code to implement features and functionalities that contribute to the growth and success of the product.- Developing intuitive, seamless interfaces that align with the business goals of the product.- Hiring team members.- Enhancing product performance and scalability through careful analysis and implementation of… Show more - Leading and managing development teams to drive measurable results by effectively delegating tasks and setting clear goals.- Writing efficient and maintainable code to implement features and functionalities that contribute to the growth and success of the product.- Developing intuitive, seamless interfaces that align with the business goals of the product.- Hiring team members.- Enhancing product performance and scalability through careful analysis and implementation of optimized solutions.- Mentoring and coaching developers to improve their skills and contribute to the overall success of the team. Show less

- Developed and maintained 3 SaaS web applications.- Designed and implemented lots of APIs (REST and GraphQL) using Django and Flask, including both private and public API development.- Optimized database performance and worked with ORMs.- Built integrations with third-party services.- Implemented real-time functionality using WebSockets.- Developed UI using various technologies such as JS, TS, React, Vue, and AngularJS.- Wrote various types of tests including unit… Show more - Developed and maintained 3 SaaS web applications.- Designed and implemented lots of APIs (REST and GraphQL) using Django and Flask, including both private and public API development.- Optimized database performance and worked with ORMs.- Built integrations with third-party services.- Implemented real-time functionality using WebSockets.- Developed UI using various technologies such as JS, TS, React, Vue, and AngularJS.- Wrote various types of tests including unit, integration, and snapshot tests.- Led development teams and provided mentorship to junior developers.- Gave lectures at the university & college. Show less

Helped companies from the USA, Brazil, and other countries develop web applications. The longest and most feature-rich project was a system built from scratch that allows users to take different types of quizzes: text quizzes, picture quizzes, multiple-choice quizzes, etc. To make the system SEO friendly, we made the decision to create a hybrid Django/React application. The backend served HTML pages, and where necessary, we embedded React components to make a page interactive and… Show more Helped companies from the USA, Brazil, and other countries develop web applications. The longest and most feature-rich project was a system built from scratch that allows users to take different types of quizzes: text quizzes, picture quizzes, multiple-choice quizzes, etc. To make the system SEO friendly, we made the decision to create a hybrid Django/React application. The backend served HTML pages, and where necessary, we embedded React components to make a page interactive and user-friendly.Tech:- Backend: Python, Django, Django REST Framework, PostgreSQL, Docker- Frontend: TypeScript, React, MobX State Tree Show less

Developed a single-page web application from scratch that allowed for selling various types of products. On server-side used Python, Django, Django REST Framework for RESTful API, Celery for background tasks, Channels for handling WebSocket connections. On client-side used JavaScript and Vue. For local development and deploying used Docker.