Senior Product Designer - Heartbeat AI (m/f/d)

Location: Berlin <h2>1KOMMA5°</h2> <p>At <strong>1KOMMA5°</strong>, we pursue a clear vision: <strong>Living on wind and sunlight forever for free</strong>. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?</p> <p>We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated. This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia.</p> <p><strong>Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.</strong></p> <p>Learn about our Product &#x26; Tech team!</p> <h2>Deine Position</h2> <p>We are looking for an AI-native designer Senior Product Designer to embed directly into our B2C product teams. You won't be doing side tasks; you'll be shaping our flagship consumer product, the Heartbeat app.<br> You can onboard and ideate quickly on complex technical energy concepts, prototype fast, and you've already figured out how to use AI as a force multiplier in your design workflow.</p> <p>This role sits at the intersection of craft and impact. You'll own the full design loop — from shaping the problem, to shipping polished and production-ready app experiences.</p> <p>As a Senior Product Designer you will</p> <ul> <li>Own end-to-end design for core app features — from discovery to delivery</li> <li>Leverage AI to enhance every step of the design process</li> <li>Elevate the product experience - you can take things from good to excellent</li> <li>Run effective user research — interviews, usability tests, and surveys</li> <li>Partner closely &#x26; proactively with PMs, engineers, and data scientists</li> <li>Synthesise complex data into simple, elegant product decisions</li> <li>Advocate for the user in a fast-moving, technical environment</li> <li>Tools: Figma, Cursor, Claude, Notion, Linear</li> <li>Skills: AI-First Design, Prototyping, User Research, UX Process, Data Visualization, Mobile App Design</li> </ul> <h2>Dein Profil</h2> <ul> <li>You don't need to tick every box — but this is the mold we're hiring for. If this profile sounds like the person you're becoming, we want to hear from you.</li> <li><strong>AI native</strong> — you use AI tools daily in your design process and can show us the work</li> <li><strong>Block-shaped</strong> — equally strong and curious in UX process, visual design, UI craft, and cross-functional collaboration</li> <li><strong>End-to-end ownership</strong> — you've taken features from 0 to 1, from messy problem statement to shipped product</li> <li><strong>Mobile app design fluency</strong> — you’re proficient in mobile app design patterns</li> <li><strong>High agency</strong> — you spot gaps and fill them without being asked</li> <li><strong>Builder mindset</strong> — you care about things being made, not just imagined</li> <li><strong>Excellent communicator</strong> — you bring clarity and efficiency to verbal &#x26; written communication; our working language is English; fluency in German is a big plus</li> </ul> <h2>Benefits</h2> <ul> <li>You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen</li> <li>With your work, you accelerate the "energy transition" and hence have a direct impact on our climate</li> <li>Work with and learn from other super-smart colleagues</li> <li>You will enjoy direct contact with core decision-makers</li> <li>You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups</li> <li>You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich</li> <li>Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass</li> <li>Benefits and discounts are yours with Futurebens</li> <li>Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time</li> </ul> <p>Find more <a href="[Link Protected] Speaking Jobs in Germany</a> on Arbeitnow</a> GDPR Compliance: Sourced via verified public channels under Legitimate Interests (Art. 6(1)(f) GDPR). [Contact Info Protected]

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