Senior UI Engineer

Job Description About Xenonstack XenonStack is the fastest-growing Data and AI Foundry for Agentic Systems, enabling people and organizations to gain real-time and intelligent business insights. We Deliver Innovation Through - Agentic Systems for AI Agents akira.ai - Vision AI Platform xenonstack.ai - Inference AI Infrastructure for Agentic Systems nexastack.ai Our mission is to accelerate the world's transition to AI + Human Intelligence by creating intuitive, enterprise-ready AI experiences. THE OPPORTUNITY We are seeking a Senior UI Engineer with 47 years of experience in building scalable, responsive, and user-friendly web interfaces. You'll lead UI development for XenonStack's platforms, ensuring our Agentic AI products deliver seamless, intuitive, and impactful user experiences. This role is perfect for someone who combines technical expertise, design sensitivity, and leadership skills to bring enterprise-grade AI solutions to life. Key Responsibilities - UI Development & Leadership - Lead the design, development, and maintenance of scalable and responsive web interfaces. - Collaborate with UX designers, product managers, and backend engineers to deliver exceptional user experiences. - Mentor junior engineers and enforce UI best practices, coding standards, and design consistency. - Technology & Implementation - Build modern front-end applications using React, Angular, or Vue.js. - Integrate RESTful APIs and GraphQL services with front-end systems. - Optimize UI performance for speed, accessibility, and cross-device responsiveness. - Code Quality & Reviews - Lead UI code reviews to ensure maintainability and scalability. - Advocate for component reusability, modular design, and performance optimization. - Innovation & Research - Stay updated on emerging UI technologies, design systems, and frameworks. - Champion UI/UX improvements and contribute to XenonStack's design system. - Collaboration & Delivery - Work closely with DevOps and QA teams to ensure reliable deployments. - Ensure a seamless bridge between design, engineering, and product requirements. Skills & Qualifications Must-Have - 47 years of experience in UI development with a strong portfolio of web applications. - Expertise in HTML5, CSS3, JavaScript (ES6+), and frameworks like React.js, Angular, or Vue.js. - Strong understanding of responsive design, accessibility (WCAG), and CSS frameworks (Bootstrap, Tailwind, Material UI). - Experience with version control (Git) and CI/CD pipelines. - Knowledge of UI performance optimization techniques. - Familiarity with REST APIs, GraphQL, and front-end build tools (Webpack, Vite). Good-to-Have - Experience with design systems and component libraries. - Exposure to AI/ML or data visualization frameworks (D3.js, Chart.js). - Familiarity with cloud environments (AWS, GCP, Azure). - Experience mentoring junior engineers or leading small UI teams. WHY SHOULD YOU JOIN US - Agentic AI Product Company Shape enterprise-ready AI products where user experience is the gateway to adoption. - A Fast-Growing Category Leader Work at one of the fastest-growing AI Foundries, setting the standard in Vision AI, Agentic Systems, and Inference Infrastructure. - Career Mobility & Growth Grow into roles such as Lead UI Engineer, Design System Owner, or Front-End Architect. - Global Exposure Build interfaces used by Fortune 500 enterprises and global innovators across industries. - Create Real Impact Your designs will directly influence how enterprises interact with AI systems. - Culture of Excellence Our values Agency, Taste, Ownership, Mastery, Impatience, and Customer Obsession give you freedom to innovate and accountability to excel. - Responsible AI First Build human-centered, trustworthy, and explainable AI experiences. XENONSTACK CULTURE JOIN US & MAKE AN IMPACT At XenonStack, we believe in shaping the future of intelligent systems. We foster a culture of cultivation built on bold, human-centric leadership principles, where deep work, simplicity, and adoption define everything we do. Our Cultural Values - Agency Be self-directed and proactive. - Taste Sweat the details and build with precision. - Ownership Take responsibility for outcomes. - Mastery Commit to continuous learning and growth. - Impatience Move fast and embrace progress. - Customer Obsession Always put the customer first. Our Product Philosophy - Obsessed with Adoption Making AI accessible and enterprise-ready. - Obsessed with Simplicity Turning complexity into seamless, intuitive experiences. Be part of our mission to accelerate the world's transition to AI + Human Intelligence by building UI experiences that make Agentic AI accessible for enterprises.