Job Summary: We are looking for a Senior Frontend Developer with UX/Design expertise to join the team responsible for the web layer of our SaaS product, working with technologies such as Razor/ASP.NET, Vue, and Blazor. Key Highlights: 1. Participate in end-to-end technical decisions and frontend architecture. 2. Provide expertise in UX/Design and elevate the product’s technical level. 3. Develop complex interfaces and scalable components. **Who We Are?** ------------------- At Preference, we are a technology company with over 30 years of history, specializing in software solutions for the fenestration industry. Our purpose is to contribute to the world by building a leading organization in our sector—one where people can develop their potential and find happiness in their work. **What We’re Looking For?** ------------------ We seek a **Senior Frontend Developer** with UX/Design expertise to join the team responsible for the web layer of our SaaS product. You will primarily work with Razor/ASP.NET (with Vue and Blazor as complementary technologies) to build complex interfaces and scalable components. We need someone capable of translating business requirements into frontend solutions, contributing UX/Design expertise, actively participating in technical architecture, and serving as a quality reference for interfaces within the team. If you enjoy participating in end\-to\-end technical decisions, contributing UX/Design expertise, solving complex interface problems, and elevating the product’s technical level, this role is for you. **Responsibilities** --------------------- **Frontend Development** \- Design and develop complex interfaces primarily using Razor, complemented by Vue and Blazor as needed. \- Advanced development of scalable and maintainable components in Razor, Vue, and Blazor. \- Implement UI flows, advanced forms, validations, grids, dashboards, and interactive views. \- Optimize performance and ensure cross\-browser compatibility. \- Manage state and complex interface logic. **UX/Design Responsibility** \- Provide expertise in interface experience and design decisions. \- Actively participate in defining visual specifications and interactions (Figma). \- Validate accessibility (WCAG), usability, and visual consistency. \- Propose and evaluate UX improvements considering technical feasibility. \- Serve as the design expertise reference within the frontend team. **Cross\-functional Responsibilities** \- Participate in frontend architecture and technology strategy decisions. \- Elevate quality standards: testing, documentation, and best practices. \- Conduct code reviews and mentor junior profiles. \- Integrate with RESTful APIs, backend services, and authentication. \- Collaborate closely with backend development and IT teams. **Essential Technical Requirements** --------------------------------------- * Degree or engineering degree in Computer Science or related fields such as Telecommunications or Multimedia. * +5 years developing complex web applications. * Solid and demonstrable experience with Razor/ASP.NET: + Advanced components and architectural patterns + Complex views and state management + Performance and optimization + Backend ASP.NET integration * Experience with Vue and/or Blazor is desirable. * Proficiency in HTML5, CSS3, and modern JavaScript. * Knowledge of UX/Design: usability principles, accessibility, and visual design. * Good understanding of architecture, design patterns, and clean code. * Regular use of Git and collaborative workflows. * Experience with automated testing: Cypress and/or Ranorex is highly desirable. * Familiarity with Figma for collaborative interface definition. **Soft Skills** --------------- * Critical thinking and independent judgment in technical and UX/Design decisions. * Ability to work autonomously and take ownership of interface definitions. * Clear communication with both technical and non\-technical stakeholders. * Continuous improvement mindset focused on product and user. * Ability to provide technical mentorship. * Effective collaboration with backend and IT teams. * User\-centric orientation and sensitivity to interface experience. **Bonus Points:** ----------------- * Experience in responsive design. * Knowledge of Core Web Vitals and performance optimization. * Experience with BabylonJS, WebXR, or 3D graphics. * Experience with WebAssembly. * Knowledge of Docker. * Experience with usability testing or user research. * Fluent English (B2 level or higher) * Experience with web accessibility (WCAG). **What We Offer?** ------------------- * Talent Development Model (personalized professional development paths, associated technical training, transparent compensation system, flexible remuneration system) * Salary based on expertise contributed (between 36\.000 and 46\.800€) * Flexible remuneration * Gym benefits, free cafeteria consumption * English classes * Join a company with strong growth and development potential