UX Designer / UX Developer (60% workload)

Drive the energy transition by providing sustainable technological solutions through our digital platform, facilitating from planning to contract tendering to implementation of renewable energy systems in real estate and industrial companies. We enable our customers to increase the economic efficiency and CO2 balance of their properties while minimizing technical, commercial, and energy risks.

To strengthen our Product & Engineering team, we are looking for a UX Designer / UX Developer (60% workload) who will own the end-to-end experience of our digital platform from user research and interaction design through to building polished, accessible interfaces in our front-end. Join this energy revolution and help us make complex energy data simple, intuitive and beautiful to work with!

Tasks

• Design end-to-end user experiences for our digital platform from user research and information architecture to wireframes, interactive prototypes, and high-fidelity UI
• Translate complex energy, simulation, and financial data into clear, intuitive interfaces and data visualizations
• Build and maintain a shared design system (components, patterns, design tokens) and implement it directly in the product front-end
• Implement designs in code (Angular, HTML, SCSS, TypeScript), ensuring pixel-accurate, responsive, and accessible interfaces in close collaboration with the engineering team
• Conduct user research, usability testing, and feedback sessions, translating insights into actionable design improvements
• Define and uphold UX standards, accessibility (WCAG), and visual consistency across all web and platform products
• Create prototypes, design documentation, and UI assets for internal and external stakeholders
• Collaborate closely with product managers, engineers, and country organizations to turn requirements into usable, elegant solutions

Requirements

• Completed degree or equivalent training in Interaction Design, UX/UI Design, Human-Computer Interaction, Media/Communication Design, or a related field
• 2–4 years of experience as a UX Designer, Product Designer, or UX/Front-End Developer, ideally on data-rich web applications
• A strong portfolio demonstrating end-to-end design work and shipped products
• High proficiency with design and prototyping tools such as Figma, including building and maintaining design systems and component libraries
• Solid front-end skills: HTML, CSS/SCSS, TypeScript/JavaScript, and hands-on experience with a modern framework such as Angular, React, or Vue
• Experience designing dashboards, data visualizations, and complex workflow interfaces
• Solid understanding of accessibility standards (WCAG), responsive design, and cross-device consistency
• A user-centered, process-oriented mindset with the ability to balance design craft and technical implementation
• Strong communication skills in both German and English, with the ability to collaborate effectively across design, engineering, and business teams
• Ideally, interest in or experience within the energy, sustainability, or real estate domain

Benefits

• An attractive salary package and exciting development opportunities
• Further training in renewable energies and project management
• A dynamic, innovative environment with short decision-making processes and plenty of creative freedom
• The opportunity to play an active role in the energy transition and make a real impact