Senior Staff UX Designer

About HEN Technologies

HEN Technologies is a deep-tech company building the world’s first end-to-end intelligent fire suppression ecosystem, powered by AI, IoT, and advanced fluid dynamics. The company’s mission is to modernize how the world prevents and responds to fires by replacing outdated, manual systems with connected, data-driven technology that is more water-efficient and intelligently coordinated across every layer of the fireground. Backed by funding from Venture Capital investors, HEN Technologies is proving that the future of fire defense is intelligent, connected, and preventative.

Join us as we build the technological foundation for a company redefining one of the world’s most critical industries.

About the Role

We are looking for a senior UX Designer to join our team. This role requires exceptional user experience and visual design skills to create intuitive, engaging, and high-performing interfaces across our platform. You will be responsible for collaborating closely with product managers, engineering leaders, engineers, and other designers to transform complex workflows, including those involving real-time data and IoT devices, into elegant and usable designs.

This role is ideal for a designer who thrives in fast-paced, cross-functional environments and is passionate about creating user-centered digital experiences that bridge web, mobile, and connected devices.

Responsibilities

• Research, architect and design modern user interfaces for IoT devices, web applications and tablet/mobile applications.
• Translate product requirements and user stories into wireframes, user flows, and high-fidelity prototypes.
• Create responsive, accessible, and visually consistent designs that align with brand guidelines and design systems.
• Work closely with developers across timezones to review and ensure pixel-perfect implementation of designs across front-end applications.
• Conduct user research, interviews, and usability testing to inform design decisions.
• Analyze user feedback, telemetry data, and product analytics to improve UX flows and reduce friction.
• Create and maintain personas, journey maps, and interaction models to represent target user experiences.
• Support the creation of visual assets, icons, and interaction animations for both UI and marketing use.
• Stay current with trends in UI/UX, design systems, and interaction design, especially in AI-driven, data-heavy or IoT-driven applications.
• Contribute to design documentation, standards, and process improvements within the design team.
• Seek feedback from peers and stakeholders, iterating quickly to deliver high-quality design outcomes.

Requirements

• BA/BS or higher in Design, Design Communication, HCI, or a related field - or equivalent experience
• 10+ years of professional experience in consumer-facing mobile/web product design, UX/UI, and interaction design. Knowledge of accessibility (WCAG) and inclusive design practices.
• Strong proficiency with Figma and prototype development.
• Proficiency in tools like Figma Make, Lovable, or similar platforms for "vibe coding" to create rapid prototypes and gather quick customer feedback.
• Experience designing for web and mobile platforms, with an understanding of responsive design principles.
• Familiarity with user-centered design methodologies, usability testing, and research techniques.
• Strong communication skills - able to present and defend design decisions to senior stakeholders including technical and non-technical audiences.
• Ability to collaborate effectively with engineers, and product managers in an agile environment.
• A portfolio that showcases strong UX thinking, data-informed decision making, and clean, intuitive interface design.

Preferred Qualifications

• Experience designing for IoT or real-time map based systems, dashboards, or device management interfaces.
• Familiarity with front-end development principles (HTML, CSS, React component structure).
• Understanding of data visualization design and complex system interactions.

Compensation

• The base salary range in Hayward California for this full-time position is between $165,000 to $200,000, stock options and other benefits.