Are you a skilled UX/UI designer, with a passion for turning complex technology into simple, intuitive designs that support a sustainable future? 

Design that works for people and the planet 
At Greener, we believe great design is more than just looks- it’s about making life easier for our users while helping the world switch to clean energy. Our UX/UI Designer will be part of a small but driven product team. We work closely across design, development, and product to create digital tools that make working with our mobile batteries a breeze. 

Your role 
You’ll be our go-to person for making sure our digital products look and feel just right. One day you might be creating reusable design components that work beautifully on mobile, tablet, and desktop. The next, you’re prototyping a new feature idea and testing it directly with users to see if it truly meets their needs. You don’t wait around for tasks; you ask questions, suggest improvements, and move projects forward. You’ll be deeply involved in product discovery (“What should our product do?”) before anyone starts building, making sure every solution has a clear purpose. And throughout, you’ll balance the technical possibilities with how things will actually be implemented, guiding the design all the way through the feature cycle: from ideation, wireframing, and prototyping to implementation and feedback. We call it We get it done. 

It’s your mission to design experiences that are clear, intuitive, and genuinely useful — and to make sure our users love every click, tap, or swipe. 

What you’ll do 

• Design user flows using conversational and mobile-first principles, for mobile, tablet, and desktop. 

• Build and maintain a reusable UI library (design system) to ensure consistency and speed up development. 

• Create components that work across devices and are easy for frontend to implement. 

• Run user testing, make prototypes, and validate designs with real feedback. 

• Work with product and engineering from the start to shape features that solve real problems. 

• Guide implementation of your designs, balancing user needs with technical limits. 

• Own features from research to launch; define, design, test, ship, learn. 

• Set design standards for accessibility, handoff, and collaboration in the team. 

Why go Greener?  

Besides contributing to a greener world, here's what you'll get: 

• Exciting and important work in a rapidly growing scale-up; 

• An inspiring work environment with a committed, friendly team and an open and honest work culture; 

• 30 vacation days per year based on a full-time employment; 

• Free vegetarian lunch at the office; 

• Pension (8%, no personal contribution, partner pension);  

• Travel allowance;  

• A laptop of your choice (Apple or Microsoft);  

• Budget for setting up your home workspace; 

Who are you? 

• A true Greener – you want to make the world a bit better, you question the status quo, and you're always looking for ways to innovate and improve 

• 4–6 years of experience in UX/UI design, with ownership of end-to-end design work 

• Strong UI design skills, especially for mobile-first, touch, and responsive interfaces 

• Experience building and maintaining a UI library or design system that’s actually used in production 

• Comfortable running user research, creating wireframes, prototyping, and testing ideas quickly 

• Able to work independently as the only designer on the team, while collaborating closely with engineers; explaining design choices and adjusting based on feedback 

• Skilled in tools like Figma, Miro, Sketch, and Storybook; experience in front-end is a nice bonus. 

Who are we? 

We are Greener Power Solutions. We are on a mission to make the temporary energy market emission-free with our mobile batteries. We can deploy these anywhere to store and deliver energy. It's an important mission, and we could really use your help. 

At Greener, we're not only committed to a greener world, but also to a fair, inclusive, and diverse work environment. We believe that different perspectives and experiences are the foundation for creating innovative and sustainable solutions. We believe in equal opportunities for everyone and encourage people from all backgrounds to apply.  

Do you see yourself as our UX-UI designer? Then apply directly with your CV and a brief motivation, and our recruiter Eleni will get in touch with you within 5 working days!