> Markdown version of [/jobs/ext/4283621-ui-engineer](https://www.wearedevelopers.com/jobs/ext/4283621-ui-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # UI Engineer - **Company:** Macpower Digital Assets Edge LLC - **Location:** Sunnyvale, CA, United States - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Computer Animation, Web Accessibility, HTML5, Browser Compatibility, Cascading Style Sheets (CSS), Software Debugging, ECMAScript, Performance Tuning, Semantic HTML, Web Content Accessibility Guidelines, ReactJS, Vue.js, Material UI, Front End Software Development - **Published:** October 31, 2026 - **Apply:** https://www.juju.com/job/16_15f2eb8b ## About the Role * Expertise in CSS Animations Strong proficiency in keyframes, transforms, and transitions. * Advanced JavaScript (ES6 ) Experience creating interactive, performant animations. * Semantic HTML & Modern CSS Ability to build clean, accessible, and responsive interfaces. * Web Accessibility (WCAG 2.1) Solid understanding of inclusive design practices. * Animation Libraries Hands-on experience with GSAP, Lottie, or similar frameworks. * Cross-Browser Optimization Knowledge of techniques to ensure smooth performance across all browsers. Nice-to-Have Skills: * Experience with SVG animations and canvas-based effects. * Familiarity with front-end frameworks (React, Vue, etc.). * Proficiency in performance debugging tools (Lighthouse, Chrome DevTools). ## Description * Develop dynamic animations using HTML5, CSS3, and JavaScript (ES6 ). * Implement scroll effects, transitions, and responsive UI components. * Ensure accessibility compliance (WCAG 2.1) and cross-browser performance optimization. * Collaborate with designers and engineers to bring creative concepts to life. * Utilize animation libraries such as GSAP, Lottie, or similar tools.