Excellent knowledge of HTML & CSS : Creating high-quality and cross-browser layouts, working with grids.

Good knowledge of Sass: Creating and using variables, mixins, and functions, managing styles and organizing code.

Good knowledge of JavaScript: Developing interactive and dynamic web applications, working with the DOM, events, and asynchronous operations.

Good knowledge of React: Developing SPA applications, a component-based approach, state management, working with routing and APIs.

Basic knowledge of Angular: Developing applications using AngularJS, working with directives, controllers, and services.

Excellent knowledge of Responsive and Adaptive Design: Responsive design for different devices, performance optimization.

Good knowledge of Git: Working with repositories, branches, commits, merges, and conflicts.

Good knowledge of C#: used in combination with Xamarin for developing mobile applications.

Good knowledge of Xamarin.iOS: experienced in developing mobile applications for the iOS operating system using the Xamarin framework.

Good knowledge of Xamarin.Android: experienced in developing mobile applications for the Android operating system using the Xamarin framework.

Good knowledge of MvvmCross: experienced in working with a framework for developing cross-platform applications based on the MVVM design pattern.