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

📍 Job Overview

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

Company: 1KOMMA5°

Location: Hamburg, Germany; Berlin, Germany; Munich, Bavaria, Germany

Job Type: Full-time

Category: Product Design / User Experience

Date Posted: April 30, 2026

Experience Level: Mid-Senior Level (3-5 years)

Remote Status: Hybrid/Remote (Germany-wide)

🚀 Role Summary

• This role is focused on enhancing user experiences and interfaces for 1KOMMA5°'s B2B operating system, specifically for work streams like Field Operations, Business Operations, and Warehousing.

• The Senior Product Designer will collaborate closely with product managers, designers, and developers to drive product discovery and design intuitive, user-centric solutions for complex problems.

• A key aspect involves owning the product vision, contributing to the design language, and advocating for user-focused design within a mission-driven team.

• The position requires a strong understanding of visual design, accessibility, and best practices in user experience for digital products, ideally within a fast-paced, agile environment.

📝 Enhancement Note: The job title includes "(Senior)" and specifies a minimum of 3 years of experience, suggesting a mid to senior-level role. The focus on B2B operating systems and specific work streams (Field Operations, Business Operations, Warehousing) indicates a need for practical, process-oriented design solutions rather than purely consumer-facing aesthetics. The mention of "Heartbeat AI" and "virtual power plant" hints at a complex, data-driven product environment.

📈 Primary Responsibilities

• Lead the design process for new and existing features within the B2B operating system, from problem definition and discovery to high-fidelity interactive design.

• Develop user flows, wireframes, prototypes, and final UI designs that are intuitive, user-centric, and visually appealing.

• Collaborate effectively with cross-functional teams, including Product Management, Engineering, and other Designers, to ensure alignment and successful feature implementation.

• Translate complex business requirements and technical models into simple, elegant, and user-friendly design solutions.

• Actively contribute to and advocate for improvements in the company's design language, UX patterns, and overall design system.

• Champion user-centered design principles and ensure accessibility standards are met in all design outputs.

• Take ownership of product areas, contributing to product strategy and vision beyond just pixel-pushing.

• Conduct user research and usability testing to gather feedback and iteratively refine design solutions.

• Stay abreast of the latest design trends, industry best practices, and emerging technologies relevant to B2B SaaS and climate tech.

📝 Enhancement Note: The responsibilities emphasize a proactive, ownership-driven approach, moving beyond traditional design tasks to include product strategy and vision. The mention of "complex models & problems" highlights the need for analytical and problem-solving skills in translating intricate business logic into user interfaces.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, Human-Computer Interaction (HCI), or a related field is typically expected for a Senior Product Designer role. Equivalent practical experience will also be considered.

Experience: Minimum of 3 years of professional experience in product design, with a strong portfolio showcasing work on web, Android, and/or iOS applications. Experience in a fast-paced or agile environment is highly preferred.

Required Skills:

• Product Design: Proven ability to manage the end-to-end product design lifecycle for digital products.

• User Experience (UX) Design: Expertise in user research, user flows, wireframing, prototyping, and usability testing to create exceptional user journeys.

• User Interface (UI) Design: Strong visual design skills, with the ability to create clean, modern, and engaging interfaces.

• Web & Mobile Design: Experience designing for various platforms, including web applications, Android, and iOS.

• Accessibility Standards: Thorough understanding and application of WCAG or similar accessibility guidelines.

• Agile Methodologies: Experience working effectively within agile development frameworks (e.g., Scrum, Kanban).

• Problem-Solving: Ability to understand and deconstruct complex problems and translate them into simple, elegant design solutions.

• Communication: Excellent written and spoken English proficiency.

Preferred Skills:

• Climate Tech Industry: Prior experience or a demonstrated interest in the climate tech or renewable energy sector.

• German Language Proficiency: Fluent in German, in addition to English.

• Design Systems: Experience in developing or contributing to design systems and style guides.

• Prototyping Tools: Proficiency with industry-standard prototyping and design tools (e.g., Figma, Sketch, Adobe XD).

• B2B SaaS Design: Experience designing complex B2B software solutions.

📝 Enhancement Note: The requirement for "minimum of 3 years" points to a mid-to-senior level. The emphasis on both "Web, Android, iOS" suggests a need for versatility, though the B2B operating system context likely means web application design is primary. Fluency in German is a significant plus, indicating potential for direct interaction with local teams or users.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing a minimum of 3 years of impactful product design work, with a clear emphasis on user-centricity and problem-solving.

• Case studies that detail the design process, from initial problem identification and user research to ideation, prototyping, UI design, and final outcomes.

• Demonstrations of how complex problems were understood and translated into intuitive, simple, user-centric solutions for digital products.

• Examples of interactive, high-fidelity designs and prototypes that illustrate user flows and user experience enhancements.

• Evidence of understanding and application of visual design principles and accessibility standards.

Process Documentation:

• Case studies should clearly articulate the specific design methodologies employed (e.g., Design Thinking, Lean UX, Agile UX).

• Documentation of the iterative design process, including how user feedback and stakeholder input were incorporated to refine solutions.

• Showcase of contributions to or adherence to design language and UX patterns.

• Explanation of how design decisions were made to align with business objectives and technical constraints.

📝 Enhancement Note: For a Senior Product Designer role, the portfolio is paramount. It needs to go beyond just showcasing final designs to demonstrating a robust, strategic design process and the ability to solve complex business challenges through user-centered design. Explicitly asking for case studies that detail the process is crucial.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior Product Designers in Germany (Hamburg, Berlin, Munich) with 3-5 years of experience, and considering the company's growth-stage status in the climate tech sector, an estimated salary range would be €60,000 - €85,000 annually. This range can vary based on the candidate's specific experience, skills, and negotiation.

Benefits:

• International, Dynamic Team: Opportunity to work with a motivated, international team known for execution.

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

• Direct Decision-Maker Access: Engage directly with core decision-makers.

• Career Growth: Excellent opportunities to transition into full-time roles within a thriving scale-up.

• Remote Work Flexibility: Option to work remotely across Germany, with access to offices in Hamburg, Berlin, or Munich.

• EGYM Wellpass: Access to fitness and wellness facilities.

• Futurebens Benefits: Discounts and benefits through the Futurebens platform.

• Job Bike Leasing: Opportunity to lease a city bike or e-bike.

Working Hours: The job description mentions 40 hours per week, typical for full-time roles in Germany. The remote work option suggests flexibility in how these hours are managed, provided workstream objectives are met.

📝 Enhancement Note: Salary estimation is based on a combination of Glassdoor, LinkedIn Salary, and industry reports for Senior Product Designer roles in major German cities. The benefits are directly extracted from the provided text and highlight the company's focus on impact, growth, and employee well-being. The remote aspect for Germany-wide candidates is a key differentiator.

🎯 Team & Company Context

🏢 Company Culture

Industry: Renewable Energy / Climate Tech / Software (Energy Management)

Company Size: 3,000+ employees worldwide, indicating a significant scale-up with international operations. This size suggests established processes but also room for agility and impact.

Founded: While the founding date isn't provided, the description of 1KOMMA5° as a "thriving scaleup" and its ambitious goal for 2030 implies rapid growth and innovation.

Team Structure:

• The role is within the B2B team, focusing on an "Operating System" for installation companies and customer quote flows.

• This implies a collaborative environment with Product Managers, Designers, and Developers, working on core business operations.

• The team structure likely emphasizes cross-functional alignment to digitize operations and improve customer decision-making processes.

Methodology:

• Data-Driven Operations: The company's vision of "Living on wind and sunlight forever for free" and the use of "Heartbeat AI" to control an integrated energy system in a "virtual power plant" strongly suggests a data-centric approach to operations and product development.

• Agile Development: Explicitly mentioned as a preferred working environment, indicating iterative development cycles, flexibility, and continuous improvement.

• User-Centric Design: A core tenet, with responsibilities focused on creating "exceptional user experiences" and understanding complex problems to design "intuitive, simple, user-centric solutions."

Company Website: https://www.1komma5.com/ (Inferred from domain_derived)

📝 Enhancement Note: The company's mission is central to its culture, attracting individuals motivated by climate impact. The combination of regional craftsmanship and scalable software suggests a blend of practical execution and technological innovation. The B2B focus implies a need for design solutions that drive efficiency and profitability for their installation partners.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a Senior Product Designer, indicating a level of autonomy and responsibility beyond junior or mid-level roles. It requires not just execution but also strategic input into product vision and design direction.

Reporting Structure: While not explicitly detailed, Senior Product Designers typically report to a Head of Design, Design Lead, or Product Lead. They are expected to work closely with product managers and engineering leads.

Operations Impact: The Senior Product Designer will have a direct impact on the efficiency and effectiveness of 1KOMMA5°'s B2B operations and customer acquisition processes. By improving the offer tool, operating system, and installation manager, they will enable installation companies to operate more efficiently and help customers make informed purchase decisions, directly contributing to the company's mission of transitioning households to renewable energy.

Growth Opportunities:

• Leadership in Design: Potential to grow into a Lead Product Designer or Design Manager role, mentoring junior designers and shaping the design strategy for larger product areas.

• Specialization: Opportunity to deepen expertise in climate tech product design, B2B SaaS, or specific areas like energy management systems.

• Cross-Functional Mobility: Exposure to various aspects of the business, including product management, engineering leadership, and market strategy, could open doors to other roles within the scale-up.

• Strategic Contribution: Influence on product vision and roadmap, moving from execution to strategic planning.

📝 Enhancement Note: The "Senior" title implies a path towards leadership. The company's rapid growth ("thriving scaleup") suggests ample opportunities for career advancement and taking on more responsibility, especially within a mission-driven sector like climate tech.

🌐 Work Environment

Office Type: Hybrid/Remote. While remote work is available Germany-wide, the company has physical offices in Hamburg, Berlin, and Munich. This suggests a flexible work model where employees can choose to work from home, a co-working space, or one of the company's offices.

Office Location(s):

• Hamburg: Neuer Wall 35, 20354 Hamburg

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

• Collaborative Environment: The role requires close collaboration with product managers, designers, and developers, suggesting that even with remote work, strong communication and teamwork are essential. The mention of a "community of mission-focused designers" indicates a supportive internal network.

• Tools & Technology: Assumed to have access to modern design and collaboration tools necessary for remote and hybrid work, such as Figma, Slack, Jira, etc.

• Impactful Work: The workspace is geared towards individuals who want to contribute to a significant mission, creating a sense of purpose and shared goals.

Work Schedule: Full-time (40 hours/week). The remote flexibility likely allows for some degree of schedule adaptability, though core working hours for team collaboration will be expected.

📝 Enhancement Note: The hybrid/remote setup with multiple office locations offers flexibility. Candidates should clarify expectations regarding any required office visits or hybrid work arrangements with their specific teams. The focus on remote work within Germany is a key aspect of the work environment.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Likely a review of CV and portfolio, followed by a brief call with HR or a recruiter to assess basic qualifications and cultural fit.

• Portfolio Review & Design Challenge: A key stage will involve presenting your portfolio with detailed case studies. This may be followed by a design challenge – either a take-home assignment or a live, in-person/virtual exercise – to assess problem-solving skills, design thinking, and execution.

• Team/Stakeholder Interviews: Meetings with Product Managers, fellow Designers, and Engineering Leads to evaluate collaboration skills, technical understanding, and alignment with team dynamics.

• Final Interview: Potentially with a senior leader (e.g., Head of Product, CTO, or CEO) to discuss strategic vision, long-term impact, and overall fit.

Portfolio Review Tips:

• Showcase Process, Not Just Pixels: Clearly articulate your design thinking, problem-solving approach, and the rationale behind your design decisions. Use case studies to tell a story about how you tackled a challenge.

• Quantify Impact: Whenever possible, include metrics or outcomes that demonstrate the success of your designs (e.g., improved conversion rates, increased user engagement, reduced task completion time).

• Tailor to B2B & Climate Tech: Highlight projects that demonstrate experience with complex B2B systems, operational workflows, or a passion for sustainability and climate solutions.

• User-Centricity: Emphasize how you incorporated user feedback and research into your design process.

• Clarity & Conciseness: Ensure your portfolio is well-organized, easy to navigate, and clearly communicates your skills and experience.

Challenge Preparation:

• Understand the Business Context: Research 1KOMMA5°'s mission, products, and target audience (installation companies, end customers).

• Focus on Problem-Solving: For any design challenge, prioritize understanding the core problem before jumping to solutions.

• Iterative Approach: Demonstrate an iterative design process, showing how you would gather feedback and refine your solutions.

• Accessibility & Usability: Keep accessibility and usability principles at the forefront of your design thinking.

• Presentation Skills: Be prepared to articulate your thought process clearly and concisely, justifying your design choices.

📝 Enhancement Note: The interview process for a Senior Product Designer at a scale-up like 1KOMMA5° will likely be rigorous, with a strong emphasis on portfolio quality and practical problem-solving abilities. Preparing detailed case studies that demonstrate a strategic design process is crucial, especially given the B2B and complex system nature of the role.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma (highly probable, industry standard), Sketch, Adobe XD.

• Collaboration & Project Management: Jira, Confluence, Asana, Trello.

• Communication: Slack, Microsoft Teams.

Analytics & Reporting:

• While not explicitly mentioned, understanding how to use analytics tools (e.g., Google Analytics, Mixpanel, Amplitude) to inform design decisions and measure impact would be highly beneficial.

CRM & Automation:

• Understanding of CRM systems (e.g., Salesforce, HubSpot) and automation platforms, given the B2B context and focus on sales/operations tools, would be a plus.

📝 Enhancement Note: The description doesn't list specific tools, but industry standards for product design in a tech-focused, agile environment heavily lean towards Figma for design and prototyping, and Jira/Confluence for project management. Familiarity with analytics platforms is often expected for Senior roles to demonstrate data-informed design.

👥 Team Culture & Values

Operations Values:

• Mission-Driven: A strong commitment to accelerating the energy transition and making renewable energy accessible ("Living on wind and sunlight forever for free").

• Execution-Oriented: A culture of "making things happen" and proving results, characteristic of successful scale-ups.

• Innovation: Embracing technology like "Heartbeat AI" and building an intelligent, integrated energy system.

• Collaboration: Working across diverse teams (craftsmanship, software, international) to achieve common goals.

• User-Centricity: A deep focus on understanding and serving the needs of users, both installation companies and end customers.

Collaboration Style:

• Cross-Functional Integration: The role requires close collaboration with product management and development teams, emphasizing a shared responsibility for product success.

• Design Community: Fostering a "top-notch community of mission-focused designers" suggests a culture of knowledge sharing, mutual support, and collective improvement.

• Agile & Iterative: A willingness to adapt, receive feedback, and continuously improve designs and processes.

• Direct Communication: Emphasis on direct contact with core decision-makers fosters open communication and faster feedback loops.

📝 Enhancement Note: The company culture appears to be a blend of purpose-driven motivation, agile execution, and collaborative innovation. The "Senior" aspect of the role implies an expectation to contribute to and uphold these values actively.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of B2B Systems: Designing intuitive interfaces for complex operational workflows (Field Operations, Business Operations, Warehousing) can be challenging. Balancing functionality with ease of use is key.

• Rapid Growth Environment: Working in a fast-paced scale-up means priorities can shift, and the need for rapid iteration and adaptation is constant.

• Balancing User Needs with Business Goals: Effectively translating intricate business logic and technical constraints into user-friendly designs while meeting aggressive business objectives.

• Remote Collaboration: Maintaining strong team cohesion and design consistency across a distributed, remote team requires proactive communication and robust collaboration practices.

Learning & Development Opportunities:

• Deep Dive into Climate Tech: Gain unparalleled expertise in the rapidly evolving climate tech and renewable energy sector.

• Advanced B2B SaaS Design: Hone skills in designing for complex enterprise-level software with real-world operational impact.

• Product Strategy Influence: Opportunity to move beyond pure design execution and contribute significantly to product vision and strategy.

• Mentorship: Learning from and potentially mentoring other designers within the growing "community of mission-focused designers."

• Exposure to AI Integration: Working with "Heartbeat AI" offers exposure to cutting-edge technology in energy management.

📝 Enhancement Note: The challenges presented are typical for a growing tech company in a complex industry. The growth opportunities are significant, leveraging the company's mission and scale to foster professional development.

💡 Interview Preparation

Strategy Questions:

• "How would you approach designing an intuitive quote flow for installation companies, considering varying levels of technical proficiency?" (Focus on user segmentation, information hierarchy, and clarity.)

• "Describe a time you had to translate a complex business process into a simple user interface. What was your process, and what were the outcomes?" (Highlight problem-solving, user research, and iterative design.)

• "How do you ensure accessibility is integrated into your design process from the outset, rather than as an afterthought?" (Demonstrate knowledge of accessibility standards and practical implementation.)

Company & Culture Questions:

• "What interests you most about 1KOMMA5°'s mission and the climate tech industry?" (Research the company's vision, values, and recent news.)

• "How do you contribute to a collaborative design culture, especially in a remote or hybrid environment?" (Discuss your approach to communication, feedback, and knowledge sharing.)

Portfolio Presentation Strategy:

• Structure Your Case Studies: For each project, clearly outline: the problem, your role, the process (research, ideation, design, testing), the solution, and the impact/outcomes.

• Highlight Your "Why": Explain the rationale behind your design decisions, connecting them back to user needs and business objectives.

• Showcase Iterations: If possible, show how your designs evolved based on feedback or testing.

• Be Ready for Deep Dives: Expect interviewers to ask probing questions about specific design choices, challenges, and your thought process.

• Prepare for a Live Exercise: If a design challenge is part of the process, practice time management and articulating your thinking process under pressure. Focus on a structured approach rather than a perfect, polished final product.

📝 Enhancement Note: Interview preparation should focus on demonstrating a strong understanding of the user-centered design process, problem-solving capabilities, and the ability to thrive in a fast-paced, mission-driven environment. Quantifying impact and showcasing a collaborative spirit will be key.

📌 Application Steps

To apply for this Senior Product Designer position:

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

• Portfolio Customization: Ensure your portfolio prominently features case studies that highlight your experience with B2B products, complex operational workflows, and user-centric problem-solving. Tailor your presentation to showcase how you've translated intricate requirements into intuitive designs.

• Resume Optimization: Update your resume to emphasize your 3+ years of product design experience, specific skills in UX/UI, web/mobile design, accessibility, and agile methodologies. Use keywords from the job description naturally.

• Preparation for Design Challenges: Anticipate a potential design exercise. Practice articulating your design process verbally and visually, focusing on understanding the problem, exploring solutions, and justifying your approach.

• Company Research: Thoroughly research 1KOMMA5°'s mission, products (especially the B2B operating system aspects), and company culture. Understand their role in the energy transition and their use of technology like "Heartbeat AI."

⚠️ 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.