Piper Companies is seeking a Senior UI (Frontend) Developer to join a dynamic and forward-thinking team focused on building modern, user-centered web and mobile applications. This is a hybrid full-time position with two remote workdays per week and offers an exciting opportunity to lead the development of responsive, accessible, and high-performance interfaces using cutting-edge technologies and design systems. The ideal candidate will be passionate about user experience, collaborative development, and staying ahead of industry trends. Responsibilities Develop dynamic, responsive, and accessible user interfaces for enterprise web and mobile applications using modern frameworks. Partner with the UI Team Lead to conduct usability testing, analyze user feedback, and recommend improvements based on evidence. Collaborate with Product Managers and Engineers to align business objectives with user needs; provide technical assessments and UI/UX recommendations. Manage requirements gathering, wireframing, prototyping, and creation of high-fidelity mockups. Validate design feasibility through rapid prototyping and Proofs of Concept to mitigate project risks. Stay current with emerging UX best practices, accessibility standards (WCAG/ADA), and technologies including AI-driven design tools. Qualifications Required: Expert knowledge of user-centered design principles, accessibility standards (WCAG/ARIA), and usability testing. Proficiency in design and prototyping tools such as Figma, Sketch, Adobe XD, InVision, or Balsamiq. Strong experience with HTML5, CSS3 (Flexbox, Grid), LESS/SASS, JavaScript (ES6+), JSON, and modern frameworks like React, Angular, or Vue.js. Familiarity with UI frameworks such as Bootstrap, Tailwind CSS, or Material UI. Experience designing for Single-Page Applications (SPAs) and Progressive Web Apps (PWAs). Proven ability to optimize interfaces for performance and cross-browser compatibility. Comfortable working in Git-based workflows and Agile/Scrum environments. Preferred: Experience with design tokens and component-driven development (e.g., Storybook, Bit). Exposure to AI-assisted design tools (e.g., Figma AI, Uizard, Galileo AI). Familiarity with Visual Studio and/or Visual Studio Code. Knowledge of .NET, .NET Core, or Node.js for backend integration. Experience with MVC design patterns. Compensation Salary Range: $100,000.00 - $120,000.00 annually, based on experience Comprehensive Benefits: CIGNA Medical, Dental, Vision; 401k through ADP This job opens for applications on 9/08/2025. Applications for this job will be accepted for at least 30 days from the posting date.
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