Product Designer (AI x Greentech) (m/f/d)

📍 Job Overview

Job Title: Product Designer (AI x Greentech) (m/f/d)

Company: Reonic

Location: Berlin, Germany

Job Type: Full-time

Category: Product Design / UX/UI Design

Date Posted: August 3, 2026

Experience Level: Mid-Level (2-3 years)

Remote Status: On-site

🚀 Role Summary

• Design and shape the user interface and experience for Reonic's AI-powered operating system, targeting renewable energy installers globally.

• Apply end-to-end product thinking, balancing user needs, business impact, and design craft to deliver intuitive, accessible, and delightful user experiences.

• Drive UX/UI quality by identifying and improving existing flows and designing new features from scratch, leveraging rapid prototyping and iteration.

• Collaborate closely with product management and engineering teams to translate complex requirements into user-centered design solutions.

• Utilize quantitative and qualitative data, including A/B tests and user research, to inform design decisions and optimize conversion, activation, and retention metrics.

📝 Enhancement Note: This role is specifically for a Product Designer with a focus on AI and Greentech. The emphasis on an "AI-Powered OS" suggests a need for designers comfortable with complex software systems and potentially data-intensive features. The "on-site" requirement in Berlin, coupled with the need for C1 German proficiency, is a critical filter for applicants. The target experience level of 2-3 years indicates a role that requires demonstrated ability but also offers significant growth potential within a startup environment.

📈 Primary Responsibilities

• Lead the design of the AI-powered operating system's user interface and user experience, ensuring a seamless and intuitive installer workflow.

• Conduct user research, usability testing, and A/B experiments to gather insights and validate design decisions, directly impacting feature adoption and user retention.

• Develop high-fidelity prototypes and design specifications, effectively communicating design intent to engineering and product teams for efficient implementation.

• Redesign and optimize existing user flows and interfaces to enhance usability, efficiency, and overall user satisfaction for renewable energy installers.

• Set and maintain a high standard for UX/UI design quality, ensuring consistency, accessibility, and aesthetic appeal across all product surfaces.

• Collaborate with cross-functional teams to understand business objectives and technical constraints, translating them into effective design solutions.

• Leverage AI tools to accelerate the conceptualization and prototyping phases of the design process.

• Actively contribute to product strategy discussions by providing design perspectives informed by user insights and market trends.

📝 Enhancement Note: The responsibilities highlight a hands-on design role with significant ownership. The emphasis on "product thinking," "balancing user needs and business impact," and "using data to grow feature adoption, activation, and retention" are core to a product-focused UX/UI designer role within a growth-oriented company. The expectation to "leverage AI tools" is a forward-thinking requirement for designers in AI-centric product development.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, Human-Computer Interaction, Computer Science, or a related field is typically expected for product design roles. Equivalent practical experience will also be considered.

Experience: 2-3 years of professional experience in product design, UX design, or UI design, preferably within a startup or fast-paced product-driven environment.

Required Skills:

• Product Thinking & Strategy: Demonstrated ability to understand and contribute to product strategy, focusing on user needs and business outcomes.

• UX/UI Design Expertise: Proficiency in designing intuitive, accessible, and engaging user interfaces and experiences across digital platforms.

• Prototyping & Iteration: Strong skills in creating wireframes, mockups, and interactive prototypes using industry-standard tools (e.g., Figma, Sketch, Adobe XD), with a focus on rapid iteration.

• User Research & Data Analysis: Experience conducting user interviews, usability testing, and analyzing quantitative data (e.g., A/B tests, funnel metrics) to drive design decisions.

• Collaboration & Communication: Excellent verbal and written communication skills in English and German (C1 level required) for effective collaboration with cross-functional teams and stakeholders.

• Ambiguity Tolerance: Comfort working autonomously and making informed trade-offs in a dynamic startup environment.

• AI Tool Proficiency: Ability to leverage AI tools to enhance design workflows, concept generation, and prototyping.

Preferred Skills:

• Experience in the Greentech or renewable energy sector.

• Familiarity with designing for complex operating systems or enterprise software.

• Additional language proficiency in Italian, French, or Portuguese.

• Experience with growth hacking methodologies and optimizing digital funnels.

📝 Enhancement Note: The "2-3 years of experience" is a key indicator of a mid-level role. The emphasis on "strong product sense and comfort in ambiguity" and "growth & UX understanding" are critical for success in a startup like Reonic, which is focused on rapid scaling and market penetration. The explicit mention of "leveraging AI tools" is a modern requirement that sets this role apart.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase end-to-end product thinking, detailing the design process from initial discovery and problem definition through to final execution and iteration.

• Include case studies demonstrating high-quality craft, problem-solving skills, and a clear understanding of user needs and business impact.

• Highlight examples of designing for complex systems or software, illustrating the ability to manage intricate user flows and information architecture.

• Present clear evidence of using both quantitative (e.g., A/B test results, funnel metrics) and qualitative data (e.g., user research findings, feedback analysis) to inform and validate design decisions.

• Demonstrate experience in redesigning and improving existing user flows and interfaces, showcasing measurable improvements in usability or efficiency. Process Documentation:

• Clearly articulate the design process followed for each project, including research methodologies, ideation techniques, prototyping tools, and testing frameworks.

• Document how user feedback and data were incorporated into design iterations, demonstrating a commitment to user-centered design.

• Showcase how design solutions were translated into actionable specifications for engineering teams, ensuring clarity and minimizing implementation friction.

• Illustrate the use of AI tools in the design process, if applicable, to accelerate workflows or generate novel design concepts.

📝 Enhancement Note: The portfolio is crucial for this role, as it's the primary way to assess "end-to-end product thinking" and "high-quality craft." Applicants should prepare to walk through their portfolio, explaining their rationale, the challenges faced, and the outcomes achieved, with a particular focus on how data and user insights influenced their decisions. Demonstrating an understanding of growth metrics like activation and retention will be highly valued.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Product Designers with 2-3 years of experience in Berlin, Germany, and considering the startup environment and specific skill requirements (AI, Greentech, C1 German), a competitive salary range would be estimated between €50,000 - €65,000 per year.

Benefits:

• Competitive salary and potential for equity in a fast-growing startup.

• Comprehensive health insurance and social benefits, aligned with German labor laws.

• Opportunity to work with cutting-edge AI and Greentech technologies.

• Professional development opportunities, including training, conferences, and skill enhancement.

• A dynamic and purpose-driven work environment focused on sustainability and innovation.

• Potential for significant impact and career growth within the company.

• Generous paid time off and public holidays.

Working Hours: Standard full-time working hours, typically around 40 hours per week, with potential for some flexibility in schedule, though the role is on-site.

📝 Enhancement Note: Salary figures are estimates based on market data for Berlin for a mid-level Product Designer role. German employment law mandates specific benefits, and startup roles often include equity options. The "on-site" nature implies a structured work schedule, though within a startup, some flexibility might be possible.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, Renewable Energy, Artificial Intelligence. Reonic operates at the intersection of AI and Greentech, aiming to revolutionize the renewable energy sector by simplifying operations for installers. This focus suggests a culture that values innovation, sustainability, and technological advancement.

Company Size: Reonic is described as "growing fast" and backed by "top-tier investors," with "3000+ business customers." This suggests a company that has moved beyond the early startup phase and is now in a scaling phase, likely with 50-200 employees, fostering a dynamic and ambitious work environment.

Founded: Founded recently, implying a modern, agile, and forward-thinking organizational structure. The company's mission-driven approach is central to its identity and culture.

Team Structure:

• The Product Design team likely collaborates closely with Product Management and Engineering.

• Designers are expected to work autonomously but also as part of a larger product development unit.

• Cross-functional collaboration is key, with designers needing to interface with engineering for implementation and product managers for strategic alignment. Methodology:

• Emphasis on data-driven decision-making, utilizing both quantitative and qualitative insights.

• Agile development methodologies are likely employed, requiring rapid prototyping and iterative design.

• A focus on user-centric design principles, ensuring that the AI-powered OS is intuitive and valuable for renewable energy installers.

• Adoption of modern design tools and potentially AI-assisted design workflows.

Company Website: https://reonic.com/en

📝 Enhancement Note: The company's mission in Greentech and AI indicates a culture that attracts individuals passionate about sustainability and technological innovation. The "fast-growing" nature suggests a dynamic, potentially high-pressure, but rewarding environment where individual contributions are highly visible and impactful.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a Mid-Level Product Designer. It requires 2-3 years of experience, indicating that the individual is expected to contribute independently on specific features and projects, but will likely be guided by senior designers or product leads on larger strategic initiatives. The role offers a solid foundation for career progression within product design.

Reporting Structure: The Product Designer will likely report to a Head of Product, Design Lead, or a Senior Product Manager, depending on the current organizational structure. Close collaboration with engineering leads and product managers is expected daily.

Operations Impact: The Product Designer will have a direct and significant impact on the usability and adoption of Reonic's core AI-powered operating system. Successful designs will drive customer acquisition, retention, and overall user satisfaction, directly contributing to the company's growth and mission success in the renewable energy market.

Growth Opportunities:

• Skill Specialization: Opportunity to deepen expertise in AI-driven product design, UX research methodologies, and data-informed design strategies.

• Leadership Potential: As the company scales, there will be opportunities to mentor junior designers, lead design initiatives for new product areas, or transition into a Senior Product Designer role.

• Industry Expertise: Develop in-depth knowledge of the renewable energy sector and the challenges faced by installers, becoming a domain expert.

• Cross-functional Exposure: Gain experience working across various departments, understanding the broader business operations and strategic decision-making processes.

📝 Enhancement Note: For a mid-level role in a growing startup, growth opportunities are often tied to the company's expansion. The potential for leadership and specialization is high, especially in a niche like AI x Greentech. The impact on core product metrics like activation and retention means that successful designers can quickly build a strong track record.

🌐 Work Environment

Office Type: Reonic is an on-site position in Berlin. This implies a traditional office environment designed to foster collaboration and team cohesion. The company likely offers a modern workspace conducive to creative and analytical work.

Office Location(s): Berlin, Germany. This location offers a vibrant tech ecosystem, access to talent, and a high quality of life, making it an attractive base for professionals. Specific details about the office address and amenities would be provided during the interview process.

Workspace Context:

• **Collaborative Environment