UI/UX Engineer

Faex Health is building clearer, calmer experiences for sensitive health information, and the UI/UX Engineer role sits at the intersection of design leadership and front-end implementation. This position will shape user journeys inside a Django application while partnering closely with the CTO and developers to deliver consistent experiences across iPhone, Android, and the web.

Working in a hybrid setup from Greenwood Vlg, CO, you will lead the design system on Bootstrap 5, redesign the path from sign-up to first scan, and help make complex clinical content easier to understand.

Responsibilities

• Own the design for a continuing redesign on a new Bootstrap 5 foundation, guiding layout, navigation, typography, color, and components.
• Own the design and front-end component library; developers handle implementation by connecting your components to application logic and data.
• Translate research and product goals into user flows, wireframes, prototypes, and high-fidelity designs.
• Write clean, responsive, accessible HTML, CSS, and JavaScript in Django templates, using Bootstrap 5 and a shared component library.
• Create and maintain the Faex design system, including reusable components, tokens, and usage guidelines for consistent developer application.
• Design for mobile app experiences that wrap the web app, aiming for native-feeling iPhone and Android interactions, including touch targets, gestures, and photo-upload flows.
• Help make health information clearer and more measured across scan results, scores, trends over time, and Felix conversations, without overstating what results mean.
• Design the clinician-facing Faex MD dashboard, improve live experiences including the GLP-1 gut-health journey and period tracker, and design new products such as Faex Infant and partner onboarding.
• Ensure every screen meets WCAG accessibility standards and supports all 13 languages, including right-to-left Arabic and CJK scripts (Chinese, Japanese, and Hindi).
• Run usability tests, analyze where users drop off using analytics, and improve the path from sign-up to first scan.
• Work in a Git workflow with Azure Repos and Azure Boards, review front-end changes, and collaborate with developers on implementation.

Requirements

• 5+ years designing digital products, with at least 3 years writing production front-end code.
• Expert HTML and CSS, including responsive layouts, Flexbox, Grid, and cross-browser testing.
• Strong Bootstrap experience, ideally Bootstrap 5.
• Working JavaScript skills for interactive components and front-end behavior.
• Proficiency in a modern design and prototyping tool such as Figma.
• Experience building or maintaining a design system or component library.
• Experience designing and building multilingual interfaces, including RTL layouts and CJK text (Chinese, Japanese, Korean).
• Solid knowledge of accessibility standards (WCAG) and mobile-first design.
• Comfort working with Git alongside developers in a shared codebase.
• A portfolio showing both your design work and the front-end code you wrote.
• Comfort working day to day with AI coding assistants such as Claude Code and Kiro, and the ability to pick up new tools as they evolve.
• Ability to work in the Denver office three days per week.

Technologies

• HTML, CSS, JavaScript
• Django
• Bootstrap 5, Bootstrap
• Flexbox, Grid
• WCAG
• Figma
• Git
• Azure Repos, Azure Boards
• Claude Code, Kiro

Benefits

• Dental insurance
• Health insurance
• Vision insurance

Preferred Qualifications

• Familiarity with the Faex app or experience designing health, wellness, or medical products.
• Experience with Django templates or other server-rendered web frameworks.
• Experience designing data visualizations, dashboards, or clinical interfaces.
• Experience with web apps delivered inside native mobile wrappers.
• Experience with user research, usability testing, and product analytics.

How We Work

• Small team, high ownership: you will take ideas from sketch to shipped code.
• Evidence-led: test with users and measure results before and after changes.
• Clarity and care by default, recognizing that users are viewing sensitive health information.

Salary: USD 75,000 - 100,000 per year. Location: Greenwood Vlg, CO (hybrid). Minimum experience: 5 years.