(Senior) Product Designer (m/f/d)

📍 Job Overview

Job Title: (Senior) Product Designer (m/f/d)

Company: 1KOMMA5°

Location: Hamburg, Berlin, or Munich, Germany

Job Type: Full-Time

Category: Product Design / User Experience (UX) / User Interface (UI)

Date Posted: April 30, 2026

Experience Level: Mid-Senior Level (2-5 years)

Remote Status: Remote (Germany-wide) with office hubs in Hamburg, Berlin, or Munich.

🚀 Role Summary

• Spearhead the creation of exceptional user experiences and visually appealing interfaces for a cutting-edge operating system within the B2B team, focusing on work streams like Field Operations, Business Operations, and Warehousing.

• Drive product discovery, problem definition, and user flow design for new and existing features, ensuring alignment with business objectives and user needs.

• Translate complex models and challenges into intuitive, simple, and user-centric digital solutions that enhance user satisfaction and operational efficiency.

• Contribute to the evolution of the company's design language and UX patterns, advocating for user-focused design principles within a mission-driven design community.

• Act as a product owner, bringing innovative ideas to the table and shaping the product vision beyond mere visual design execution.

📝 Enhancement Note: This role is positioned as a "(Senior) Product Designer," suggesting a need for both strong individual contribution and potential mentorship or leadership in design initiatives. The emphasis on owning the product and shaping vision indicates a proactive and strategic approach to design is highly valued. The B2B focus on operational workstreams (Field Ops, Business Ops, Warehousing) implies a need for understanding complex business processes and designing for efficiency and productivity.

📈 Primary Responsibilities

• Collaborate closely with Product Managers, Designers, and Developers to define product challenges, lead discovery phases, and architect user flows for new and existing features.

• Develop high-fidelity interactive designs that significantly elevate the overall user experience, and iteratively refine these solutions based on user feedback and stakeholder input.

• Quickly grasp complex business models and operational problems, translating them into intuitive, simple, and user-centric design solutions.

• Partner with other 1KOMMA5° designers to refine and expand the company's design language and UX patterns, championing user-centered design principles and fostering a collaborative design community.

• Take ownership of product features, proactively contribute innovative ideas, and actively shape the product vision, moving beyond pixel-pushing to strategic product development.

• Ensure designs adhere to strong visual design principles and accessibility standards, making digital products usable and appealing for all users.

• Contribute to the efficiency and digitization of operations and processes for installation companies and facilitate customer purchase decisions through streamlined quote flows.

📝 Enhancement Note: The responsibilities highlight a blend of strategic product thinking, hands-on design execution, and collaborative teamwork. The emphasis on "owning the product" and "shaping the vision" suggests this role requires more than just executing design tasks; it demands active participation in product strategy and problem-solving. The mention of B2B work streams like "Field Operations," "Business Operations," and "Warehousing" implies a need for deep understanding of operational workflows and business process optimization.

🎓 Skills & Qualifications

Education: While specific educational requirements are not detailed, a Bachelor's or Master's degree in Design, HCI, Computer Science, or a related field is often expected for mid-to-senior level product design roles. A strong portfolio demonstrating practical application of design principles can often substitute for formal education.

Experience: Minimum of 3 years of dedicated product design experience, with a proven track record in creating user-centric digital products across web, Android, and iOS platforms. Experience working in a fast-paced or agile environment is crucial.

Required Skills:

• Minimum 3 years of product design experience (Web, Android, iOS).

• Proven ability to create excellent user-centric digital products.

• Strong grasp of visual design principles and best practices.

• Deep understanding of accessibility standards and implementation.

• Demonstrated ability to translate complex problems into elegant, simple, user-centric solutions.

• Experience working effectively in an agile development environment.

Preferred Skills:

• Experience and demonstrable interest in the climate tech industry or renewable energy sector.

• Fluency in German language.

• Familiarity with design systems and component-based design.

• Experience with user research methodologies and usability testing.

• Proficiency in prototyping tools and creating interactive mockups.

📝 Enhancement Note: The "Senior" in the title implies that candidates with 5+ years of experience and demonstrated leadership in design projects would be highly competitive. The preference for German language proficiency suggests that candidates fluent in both English and German will have an advantage, particularly for roles involving direct interaction with local teams and stakeholders.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing a range of user-centric digital products designed for web, Android, and iOS.

• Detailed case studies demonstrating the end-to-end design process, from problem definition and user research to ideation, prototyping, high-fidelity design, and iteration based on feedback.

• Examples that clearly articulate complex problems and showcase how elegant, simple, user-centric solutions were developed.

• Visual examples of strong visual design and adherence to accessibility standards.

Process Documentation:

• Case studies should ideally highlight the application of agile methodologies and how designs evolved within iterative development cycles.

• Demonstrate understanding and application of design systems or the ability to contribute to their development.

• Include examples of how user feedback and stakeholder input were incorporated to refine designs and improve user experience.

• Showcase the ability to manage and prioritize design tasks within a fast-paced environment, reflecting project timelines and deliverables.

📝 Enhancement Note: For a "(Senior) Product Designer" role, the portfolio should not just present finished designs but critically, the process behind them. This includes demonstrating strategic thinking, problem-solving methodologies, and the ability to articulate design decisions with data and user insights. The B2B context suggests that showcasing designs for operational efficiency and complex workflows will be highly impactful.

💵 Compensation & Benefits

Salary Range: Given the "Senior" designation and the company's presence in major German tech hubs (Hamburg, Berlin, Munich), a competitive salary range for a Senior Product Designer in Germany would typically fall between €65,000 and €85,000 annually, depending on exact experience, specific skills, and negotiation.

Benefits:

• International, Dynamic Team: Opportunity to work with a diverse and motivated group of professionals.

• Climate Impact: Directly contribute to the energy transition and climate protection through your work.

• Direct Stakeholder Access: Engage directly with core decision-makers, offering high visibility and influence.

• Career Growth: Excellent opportunities for career advancement within a rapidly growing scale-up.

• Remote Work Flexibility: Ability to work remotely across Germany, with access to office hubs in Hamburg, Berlin, or Munich for collaborative sessions or in-person work.

• Health & Wellness: Access to the EGYM Wellpass for health and fitness activities.

• Discounts: Benefits and discounts through Futurebens.

• Sustainable Commuting: Job bike leasing options (city or e-bike) to encourage eco-friendly transportation.

Working Hours: 40 hours per week, with a focus on flexibility and results, common in agile tech environments.

📝 Enhancement Note: The listed benefits are strong, particularly the climate impact and remote flexibility within Germany. The salary estimation is based on industry benchmarks for Senior Product Designers in Germany, considering the company's scale-up status and location. The "Full-Time" employment type is confirmed.

🎯 Team & Company Context

🏢 Company Culture

Industry: Renewable Energy / Climate Tech / Software & Technology. 1KOMMA5° is at the forefront of integrating renewable energy sources (solar, wind) with smart technology (AI, virtual power plants) to create a decentralized and efficient energy system for homes. This industry is characterized by rapid innovation, a strong mission-driven ethos, and a focus on sustainability.

Company Size: Over 3,000 employees worldwide, with a significant presence across more than 80 locations. This indicates a mature but rapidly scaling organization, offering both established processes and ample opportunities for growth and impact.

Founded: The founding date is not explicitly stated, but the company's rapid growth suggests it is a relatively young but ambitious venture, likely founded within the last decade.

Team Structure:

• The Product & Tech team is a core part of 1KOMMA5°, driving innovation through software and AI.

• The B2B team, where this role sits, focuses on internal tools and customer-facing solutions that digitize operations and streamline purchase processes for installation companies and end customers.

Methodology:

• Agile Development: The company operates in an agile environment, emphasizing iterative development, rapid feedback loops, and continuous improvement.

• Data-Driven Design: The use of "Heartbeat AI" and a focus on real-time control of energy systems suggests a strong reliance on data analytics and performance metrics to inform product decisions and optimize operations.

• User-Centricity: The core mission of simplifying energy transition for customers and installers underscores a commitment to user experience and designing solutions that are intuitive and effective.

Company Website: https://1komma5.com/

📝 Enhancement Note: The company's mission ("Living on wind and sunlight forever for free") is a significant cultural driver. Candidates should be passionate about sustainability and the energy transition. The blend of regional craftsmanship and scalable software suggests a culture that values both hands-on execution and technological innovation.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a "(Senior) Product Designer," indicating a mid-to-senior level position. It requires significant autonomy, the ability to lead design initiatives, and a proactive approach to product development. The expectation is for the designer to not just execute tasks but to contribute strategically to product vision and problem-solving.

Reporting Structure: The designer will likely report to a Head of Product Design, a Lead Product Designer, or a Product Manager within the B2B team. Collaboration will be extensive with product managers, developers, and other designers across different product areas.

Operations Impact: The designer's work directly impacts the efficiency of 1KOMMA5°'s B2B operations (installation companies, internal processes) and the customer's purchasing experience. By creating intuitive interfaces for the operating system's work streams (Field Operations, Business Operations, Warehousing) and the offer tool, the designer contributes to:

• Digitization and Process Optimization: Streamlining complex workflows for installation partners.

• Sales Efficiency: Enabling faster, more understandable quote flows for customers.

• Scalability: Building robust digital tools that can support the company's ambitious growth targets (1.5 million households by 2030).

• User Satisfaction: Enhancing the experience for both internal users (installation teams) and external customers.

Growth Opportunities:

• Design Leadership: Opportunities to take on more complex projects, mentor junior designers, and influence the overall design strategy as the company scales.

• Skill Specialization: Deepen expertise in specific areas like B2B SaaS design, climate tech product development, or advanced UX research.

• Cross-functional Mobility: Potential to move into product management or other strategic roles within the rapidly expanding organization.

• Industry Expertise: Develop specialized knowledge in the rapidly evolving renewable energy and climate tech sectors.

📝 Enhancement Note: The "(Senior)" title strongly implies a career path beyond individual contributor, with potential for leading design efforts or strategic input. The company's rapid growth and ambitious goals suggest a dynamic environment where high performers can advance quickly.

🌐 Work Environment

Office Type: Hybrid model. While remote work within Germany is offered, the company maintains physical office hubs in Hamburg, Berlin, and Munich. This suggests a flexible work environment that blends remote autonomy with opportunities for in-person collaboration, team building, and access to company resources.

Office Location(s):

• Hamburg: Neuer Wall 35, 20354 Hamburg

• Berlin: Rollbergstraße C/O Impact Hub 28A, 12053 Berlin Workspace Context:

• Collaborative Environment: The presence of physical hubs and the emphasis on design community suggest a culture that values collaboration, knowledge sharing, and spontaneous interaction.

• Tools & Technology: Access to modern design tools and technology infrastructure is implied, supporting efficient workflow and innovation. The company’s reliance on AI and digital systems means the design environment is likely tech-forward.

• Mission-Driven Atmosphere: The workspace is expected to be filled with motivated individuals passionate about the company's mission to accelerate the energy transition, fostering a sense of purpose and shared goals.

Work Schedule: Flexible working hours are common in the tech industry and implied by the remote option. The standard work week is 40 hours, but the focus is likely on delivering results rather than strict adherence to time.

📝 Enhancement Note: The hybrid approach with remote flexibility and physical hubs is a key aspect of the work environment. Candidates should be comfortable with both remote collaboration and occasional in-person meetings or work sessions at one of the specified office locations.

📄 Application & Portfolio Review Process

Interview Process: While not explicitly detailed, a typical process for a Senior Product Designer role at a scale-up like 1KOMMA5° would likely involve:

• Application Screening: Review of resume and portfolio.

• Initial Interview: A call with a recruiter or hiring manager to assess qualifications, cultural fit, and basic understanding of the role.

• Portfolio Presentation & Design Challenge: A session where the candidate presents their portfolio, discusses their process, and potentially completes a take-home or live design challenge related to the company's products. This is crucial for evaluating problem-solving skills and design thinking.

• Team Interviews: Meetings with potential colleagues (other designers, product managers, developers) to assess collaboration style and technical proficiency.

• Final Interview: A discussion with senior leadership or the hiring manager to finalize the decision.

Portfolio Review Tips:

• Showcase the Process: Clearly articulate the problem, your role, the constraints, your design process, key decisions, and the impact of your solutions. Use visuals effectively to guide the viewer through your journey.

• Focus on Impact: Quantify results wherever possible (e.g., improved conversion rates, reduced task completion time, increased user satisfaction scores). For B2B operations, highlight efficiency gains or process improvements.

• Tailor to the Role: Emphasize projects that align with B2B SaaS, operational tools, or complex workflow design. Highlight your ability to simplify complexity.

• Demonstrate Strategic Thinking: Show how you contributed to product vision, not just pixel execution. Discuss trade-offs and how you navigated them.

• Accessibility & Visual Design: Ensure your portfolio consistently demonstrates strong visual aesthetics and a commitment to accessibility standards.

Challenge Preparation:

• Understand the Business: Research 1KOMMA5°, their mission, their products (especially the B2B operating system components), and their target users (installation companies, end customers).

• Focus on User-Centricity & Efficiency: Anticipate design challenges that involve streamlining complex operational workflows or making intricate B2B processes intuitive.

• Articulate Your Thinking: Be prepared to explain your design decisions, rationale, and trade-offs clearly and concisely. Practice presenting your thought process.

• Ask Insightful Questions: Prepare questions about the team, the product roadmap, design challenges, and company culture.

📝 Enhancement Note: The emphasis on "owning the product" and designing for complex B2B operational workstreams means that candidates should prepare to demonstrate not just aesthetic design skills but also a strong understanding of business needs and user workflows. Portfolio case studies should highlight problem-solving and strategic contribution.

🛠 Tools & Technology Stack

Primary Tools: While not explicitly listed, the following are standard for Product Designers in such roles:

• Design & Prototyping: Figma (highly probable), Sketch, Adobe Creative Suite (Illustrator, Photoshop).

• Collaboration: Slack, Jira, Confluence, Miro (for whiteboarding/workshops).

• User Research & Testing: UserTesting.com, Hotjar, SurveyMonkey, or similar platforms.

Analytics & Reporting:

• Experience with analytics platforms like Google Analytics, Mixpanel, Amplitude, or Pendo to understand user behavior and product performance.

CRM & Automation:

• While not a direct tool for designers, understanding how designs integrate with CRM systems (like Salesforce, HubSpot) and automation workflows is beneficial, especially for B2B products.

• Familiarity with how data flows through systems to support operational processes.

📝 Enhancement Note: Figma is currently the industry standard for collaborative design and prototyping. Candidates should be proficient in at least one major design tool and comfortable with collaborative workflows. Understanding data analytics is increasingly important for designers to demonstrate the impact of their work.

👥 Team Culture & Values

Operations Values:

• Mission-Driven: A strong commitment to accelerating the energy transition and making renewable energy accessible and affordable.

• Innovation & Technology: Embracing AI, smart systems, and cutting-edge technology to build the energy infrastructure of the future.

• Efficiency & Scalability: Focused on building scalable solutions that can onboard millions of households and streamline complex operational processes.

• Collaboration & Ownership: Encouraging teamwork, shared responsibility, and a proactive attitude towards problem-solving and product development.

• User-Centricity: Prioritizing the needs and experiences of both installation partners and end customers in all design decisions.

Collaboration Style:

• Cross-functional Integration: Designers work closely with Product Managers and Developers in agile teams, fostering a collaborative environment where diverse perspectives contribute to product success.

• Open Communication: Encouraging direct communication with core decision-makers and fostering a culture where ideas can be shared freely.

• Design Community: Actively contributing to and benefiting from a community of mission-focused designers, promoting knowledge sharing and best practice development.

• Feedback-Oriented: A culture that values constructive feedback, both giving and receiving, to continuously improve designs and processes.

📝 Enhancement Note: The company's mission is a central pillar of its culture. Candidates should align with these values and be able to articulate how their design work supports the company's broader goals.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of B2B Operations: Designing intuitive interfaces for complex, multi-step operational workflows (Field Operations, Business Operations, Warehousing) requires deep understanding and strategic simplification.

• Balancing User Needs: Effectively balancing the needs of different user groups, such as installation companies (efficiency, ease of use) and end customers (clarity, purchase experience).

• Rapid Scaling: Adapting designs and processes to support rapid company growth while maintaining quality and user experience standards.

• Technical Integration: Ensuring designs are feasible and integrate seamlessly with the company's AI-driven virtual power plant technology and other backend systems.

Learning & Development Opportunities:

• Climate Tech Expertise: Gaining in-depth knowledge and experience in the rapidly evolving renewable energy and climate tech sectors.

• Product Strategy: Opportunity to influence product vision and strategy, moving beyond execution to strategic product development.

• Advanced Design Skills: Deepening expertise in areas like complex B2B SaaS design, system thinking, and user research for operational environments.

• Leadership Development: Potential to grow into design leadership roles, mentoring teams and shaping design culture within a fast-growing scale-up.

📝 Enhancement Note: The challenges presented are inherent to high-growth tech companies in complex industries. The growth opportunities are substantial, particularly for individuals looking to make a significant impact in the climate tech space and advance their careers rapidly.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to simplify a highly complex process or model into an intuitive user experience. What was your approach and what was the outcome?" (Focus on problem-solving, user-centricity, and impact.)

• "How do you balance the needs of different user groups, especially in a B2B context where efficiency, usability, and business goals are all critical?" (Assesses understanding of stakeholder management and user segmentation.)

Company & Culture Questions:

• "What interests you about 1KOMMA5°'s mission and the climate tech industry?" (Tests alignment with company values and passion for the domain.)

• "How do you contribute to a collaborative design team and foster a user-centric culture?" (Assesses teamwork and advocacy for user needs.)

Portfolio Presentation Strategy:

• Structure Your Case Studies: Begin with the problem statement and business context, your specific role and responsibilities, your design process (research, ideation, wireframing, prototyping, testing), key decisions and rationale, final designs, and measured outcomes/impact.

• Highlight B2B Operations: If possible, showcase projects that involved designing for operational efficiency, complex workflows, or enterprise software. Emphasize how you translated complexity into simplicity.

• Quantify Impact: Use metrics to demonstrate the value of your design solutions. For B2B, this could be process time reduction, error rate decrease, or increased adoption.

• Be Ready for Deep Dives: Prepare to answer detailed questions about your design choices, the tools you used, your collaboration methods, and your problem-solving approach.

📝 Enhancement Note: Interviewers will be looking for evidence of strategic thinking, strong problem-solving skills, a deep understanding of user-centered design, and the ability to translate business needs into effective digital solutions, especially within a complex B2B operational context.

📌 Application Steps

To apply for this (Senior) Product Designer position:

• Submit your application through the provided link on the 1KOMMA5° careers page.

• Tailor your resume: Highlight experience relevant to B2B SaaS, product design for web/mobile, agile environments, and any climate tech or energy sector involvement. Use keywords from the job description.

• Curate your portfolio: Select 3-5 of your strongest case studies that best demonstrate your ability to solve complex problems, create user-centric experiences, and drive tangible results, particularly in operational or B2B contexts. Ensure each case study clearly outlines the problem, your role, process, and impact.

• Prepare your presentation: Practice walking through your portfolio case studies, focusing on articulating your design process, strategic decisions, and the outcomes achieved. Be ready to discuss your approach to user research, collaboration, and problem-solving.

• Research 1KOMMA5°: Understand their mission, their technology (Heartbeat AI, virtual power plants), their B2B offerings, and their target users. This will help you tailor your application and demonstrate genuine interest.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.