Senior Front-End / Web UI Developer

bout the Project We are modernizing and optimizing an existing ASP.NET web application that serves as a core business platform. The site is built using ASP.NET, MVC, Telerik UI, HTML, jQuery, VSTO (Office integrations), and CSS. We are seeking two experienced Senior Front-End / Web UI Developers to enhance the front end, with a strong focus on performance optimization for large data sets. Responsibilities Collaborate with backend developers and business analysts to refine requirements and deliver high-quality UI features. Optimize performance and responsiveness of existing ASP.NET MVC views and components. Implement modern CSS best practices, including flex, grid, responsive layouts, and cross-browser compatibility. Refactor and enhance jQuery/Telerik-based UI components for usability and maintainability. Integrate front-end components seamlessly with ASP.NET MVC controllers and Razor views. Ensure accessibility, usability, and WCAG compliance. Support Office integration components using VSTO as needed. Mentor junior developers and conduct code reviews. Required Skills 7+ years of experience in front-end development with ASP.NET (MVC), HTML5, CSS3, JavaScript/jQuery. Strong expertise with Telerik UI for ASP.NET MVC (grids, charts, forms, etc.). Proven experience optimizing legacy ASP.NET applications for performance, scalability, and maintainability. Working knowledge of VSTO and Office integration workflows. Strong UI/UX skills, with ability to translate wireframes into pixel-perfect interfaces. Deep understanding of cross-browser compatibility challenges and solutions. Experience with responsive design frameworks and modern CSS methodologies. Nice-to-Have Skills Familiarity with Angular, React, or Tailwind for future modernization. Experience with DevOps pipelines for ASP.NET applications. Knowledge of WCAG 2.1 accessibility standards and best practices.