Principal Engineer, UI

Summary

Join Invisible Technologies as a Principal Engineer, UI and lead frontend architecture across multiple products. Drive engineering excellence, mentor a growing team, and design scalable React applications. Build robust UI component systems, define best practices for seamless user experience, and collaborate with cross-functional stakeholders. Optimize UI performance, integrate GraphQL APIs, implement comprehensive testing strategies, and guide the evolution of the design system. Contribute to strategic planning and mentor engineers, fostering a culture of clean code and continuous improvement.

Requirements

• 8+ years of frontend engineering experience, including architectural leadership on complex products
• Deep expertise in React, TypeScript, JavaScript (ES6+), and frontend system design
• Proven success in optimizing UI performance at scale
• Strong understanding of GraphQL APIs, including real-time interactions
• Experience with UI design systems and component-driven development workflows
• Proficiency in styling technologies like Tailwind CSS, SCSS/SASS, and Styled Components
• Fluency in build tools and version control (Webpack, Babel, NPM/Yarn, Git)
• Hands-on experience with accessibility implementation and responsive design
• Passion for mentoring and building world-class engineering teams
• Strong communication, strategic thinking, and problem-solving abilities

Responsibilities

• Architect and lead scalable React applications using TypeScript and modern front-end tooling
• Design and build modular, reusable UI components and maintain a shared component library
• Optimize performance using advanced techniques like memoization, virtualization, and lazy loading
• Define and enforce accessibility (WCAG/ARIA), responsiveness, and UI consistency standards
• Integrate GraphQL APIs and manage real-time data workflows
• Implement comprehensive testing strategies using Jest, Cypress, and React Testing Library
• Collaborate with product, design, and backend teams to define and deliver product features
• Guide the evolution of our design system and frontend architecture
• Mentor engineers, driving a culture of clean code, continuous improvement, and technical mastery
• Contribute to strategic planning and engineering roadmap decisions

Benefits

Bonuses and equity are included in offers above entry level