UX/UI Specialist

UX/UI Specialist

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world's leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we're scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.

The UX/UI Designer is responsible for the design, prototyping, and front-end development of SCADA products and automation interfaces that ensure a seamless and intuitive experience for operators and engineers managing energy storage systems. This role bridges aesthetic design, user research, and technical front-end implementation, working to transform complex system data and stakeholder feedback into high-performance, responsive, and scalable visual solutions.

In US: Hybrid 3 days in office (Houston, TX)

In Mexico: Remote

Key Responsibilities

• Design and maintain SCADA product interfaces and new features based on evolving user needs and technical feedback. Develop static front-end components using specialized industrial software, requiring strong proficiency in HTML, CSS, and modern layout techniques like Flexbox and Grid.
• Create, manage, and optimize vector graphics and SVGs for high-performance use within the SCADA environment.
• Utilize Adobe Illustrator and Figma to maintain and expand a comprehensive internal Design System, including styles, iconography, typography, and color palettes.
• Collaborate with the engineering team to solve logic problems and technical challenges when making product interfaces dynamic and data-driven.
• Design for a diverse range of environments, ensuring products are fully responsive and optimized for both Light and Dark modes.
• Optimize interfaces for touch-screen HMI devices, ensuring industrial-grade usability and ergonomics in the field. Maintain consistency and an excellent eye for detail across all screens and product modules to ensure a unified user experience.
• Design and implement intuitive workflows for complex tasks, such as device settings editing and system configuration.
• Facilitate regular feedback sessions with both English and Spanish-speaking users to gather qualitative insights and validate design directions.
• Refactor and optimize front-end code to improve system performance, maintainability, and long-term scalability.
• Proactively identify future design trends and technical improvements to ensure the product remains at the forefront of the energy storage market.

Requirements

• Bachelor's degree in Multimedia Design, Graphic Design, Interaction Design, UX/UI Design, or a related field, or equivalent experience.
• Strong proficiency in HTML and CSS, with expertise in modern layout techniques (Flexbox, Grid).
• Advanced skills in Adobe Illustrator and Figma for vector graphics, design systems, and prototyping.
• Experience creating and optimizing SVGs for web and industrial applications.
• Proven experience designing user interfaces for industrial, SCADA, or complex data-driven systems.
• Strong understanding of responsive design principles and multi-device optimization.
• Experience designing for both Light and Dark mode environments.
• Knowledge of touch-screen HMI design principles and industrial usability standards.
• Ability to collaborate with engineering teams to implement dynamic, data-driven interfaces.
• Experience conducting user research and feedback sessions with diverse user groups.
• Excellent attention to detail and commitment to visual consistency across products.
• Strong problem-solving skills and ability to balance aesthetic design with technical constraints.
• Fluency in English; Spanish language skills are a plus for US candidates.
• Willingness to travel for user research, commissioning, and stakeholder meetings as needed.

For US-based roles - What you'll get:

• Competitive salary + annual performance-based bonus eligibility
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and company holidays

For Mexico-based roles - What you'll get:

• Competitive salary + annual performance bonus eligibility
• Christmas Bonus (Aguinaldo): 30 days
• Major medical expenses and life insurance
• Paid time off and holidays (per local policy)

For all roles:

• Professional development and growth opportunities
• Opportunity to grow with a mission-driven team shaping the future of clean energy
• Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
• Accommodations: If you need an accommodation during the application process, email View email address on click.appcast.io
• Benefits vary by role and location and are subject to change.