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

📍 Job Overview

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

Company: 1KOMMA5°

Location: Berlin, Germany

Job Type: FULL_TIME

Category: Product Design / UX/UI

Date Posted: April 30, 2026

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

Remote Status: Hybrid (Remote within Germany with office options)

🚀 Role Summary

• Design and deliver exceptional user experiences and visually appealing interfaces for B2B operational tools, focusing on digitization and process optimization within the energy sector.

• Collaborate closely with product managers, developers, and fellow designers to conceptualize, prototype, and iterate on user-centric digital products that drive business objectives.

• Own product features from ideation to implementation, contributing to the overall product vision and shaping intuitive solutions for complex operational workflows.

• Champion user-focused design principles, advocate for accessibility, and contribute to the evolution of the company's design language and UX patterns.

📝 Enhancement Note: This role, while titled "Product Designer," has significant implications for operational efficiency within 1KOMMA5°'s B2B context. The focus on "digitizing operations and processes for our installation companies" and creating "efficient, standardized and understandable quote flows" strongly indicates a need for a designer who understands how design impacts operational workflows, data management, and ultimately, revenue generation through optimized sales and installation processes. The "Operating System's work streams" further solidify this operational focus.

📈 Primary Responsibilities

• Lead the end-to-end design process for B2B operational tools, including user research, journey mapping, wireframing, prototyping, and high-fidelity UI design for features within Field Operations, Business Operations, and Warehousing.

• Define problems, conduct user discovery sessions, and create intuitive user flows for new and existing features, ensuring alignment with business goals and technical feasibility.

• Develop and maintain interactive prototypes and high-fidelity designs that significantly enhance the user experience, with a continuous cycle of iteration based on user feedback and stakeholder input.

• Translate complex technical models and business challenges into simple, elegant, and user-centric solutions that improve operational efficiency and user satisfaction.

• Collaborate with the broader design team to refine and contribute to the company's design language, UX patterns, and design systems, while advocating for user-centricity and best practices.

• Actively contribute to product strategy and vision, bringing innovative ideas to the table and taking ownership of product areas beyond just pixel-perfect execution.

• Ensure designs adhere to visual design best practices and accessibility standards, making digital products usable and inclusive for all users.

• Work effectively within an agile development environment, participating in sprint planning, reviews, and retrospectives to ensure timely and high-quality design delivery.

📝 Enhancement Note: The responsibilities listed, particularly "digitizing operations and processes for our installation companies" and designing for "Field Operations, Business Operations & Warehousing," point to a need for understanding operational workflows and the impact of design on process efficiency. This goes beyond typical B2C product design and requires a designer adept at optimizing internal systems and supporting B2B customer interactions through digital tools.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's degree in Design, HCI, Computer Science, or a related field is typically expected for a Senior Product Designer role. A strong portfolio can often substitute for formal education.

Experience: Minimum of 3 years of product design experience, with a proven track record of building excellent user-centric digital products, ideally within a fast-paced, agile environment. Experience with B2B SaaS products is highly advantageous.

Required Skills:

• Minimum 3 years of product design experience for Web, Android, and iOS platforms.

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

• Strong grasp of visual design principles and accessibility standards.

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

• Experience working in an agile development environment.

• Excellent written and spoken English communication skills.

Preferred Skills:

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

• Fluency in German, both written and spoken.

• Experience designing for B2B operational workflows, internal tools, or SaaS platforms.

• Familiarity with design systems and their implementation.

• Experience conducting user research and usability testing.

📝 Enhancement Note: The "Senior" aspect of the title implies an expectation of leadership potential, strategic thinking, and the ability to mentor junior designers. The "B2B team" context and the specific mention of operational tools (offer tool, operating system, installation manager) suggest that candidates with experience in internal tools or complex B2B SaaS environments will be highly valued.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A curated selection of 3-5 high-impact projects that showcase your product design process, problem-solving skills, and ability to deliver user-centric solutions.

• Projects should demonstrate a clear understanding of user needs, business objectives, and technical constraints, with a focus on B2B or complex operational workflows.

• Interactive prototypes or case studies that clearly articulate the problem, your design process, key decisions, and the measurable outcomes or impact of your work.

• Examples should highlight your ability to create intuitive interfaces for complex systems, and ideally, demonstrate an understanding of how design influences operational efficiency.

Process Documentation:

• For each project, clearly outline your design methodology, including user research techniques, ideation strategies, prototyping methods, and user testing approaches.

• Document the iterative design process, detailing how feedback was incorporated and how designs evolved to meet user and business requirements.

• Provide clear visuals and explanations of user flows, wireframes, and high-fidelity mockups, demonstrating your ability to translate concepts into tangible designs.

• Quantify the impact of your design solutions whenever possible, using metrics related to user satisfaction, task completion rates, efficiency gains, or business impact.

📝 Enhancement Note: For a role focused on operational tools, the portfolio should strongly emphasize projects that demonstrate an understanding of workflow optimization, data management, and the impact of design on internal efficiency or B2B customer decision-making processes. Case studies detailing how a design improved operational metrics or simplified complex tasks will be particularly compelling.

💵 Compensation & Benefits

Salary Range: Given the "Senior" title, 3+ years of experience, and location in Berlin, Germany, a competitive salary range for a Senior Product Designer would typically fall between €65,000 - €90,000 per year. This estimate is based on industry benchmarks for similar roles in major German tech hubs, considering the company's scale-up status and focus on climate tech.

Benefits:

• Be part of an international, dynamic, and highly motivated team with a proven track record of execution.

• Accelerate the "energy transition" with your work, making a direct impact on climate change.

• Learn from and collaborate with super-smart colleagues.

• Enjoy direct contact with core decision-makers, influencing product direction.

• High potential for full-time employment in a thriving European scale-up.

• Remote work flexibility within Germany, with office hubs available in Hamburg, Berlin, or Munich.

• Access to EGYM Wellpass for work-life balance and well-being.

• Benefits and discounts through Futurebens.

• Job bike leasing program (city bike or e-bike) for flexible and environmentally friendly commuting.

Working Hours: Standard full-time working hours, estimated at 40 hours per week, with flexibility offered due to remote work options.

📝 Enhancement Note: The salary range is an estimate based on typical market rates for a Senior Product Designer in Berlin, Germany, considering the industry (Climate Tech/SaaS) and company stage (Scale-up). Specific compensation will depend on the candidate's exact experience, skills, and negotiation. The benefits are directly extracted from the provided text.

🎯 Team & Company Context

🏢 Company Culture

Industry: Energy, Climate Tech, Software, Renewable Energy, SaaS. 1KOMMA5° operates at the intersection of traditional craftsmanship and cutting-edge technology, aiming to revolutionize the energy sector with intelligent, integrated systems controlled by AI.

Company Size: 1001-5000 employees (based on LinkedIn data). This indicates a well-established scale-up with significant resources and organizational structure, offering opportunities for impact within a growing entity.

Founded: 2021. A relatively young company, but one that has experienced rapid growth, suggesting a dynamic, fast-paced, and innovative environment.

Team Structure:

• The role is within the B2B team, focusing on digitizing operations and processes for installation companies and enabling customer purchase decisions through an integrated system.

• This team likely comprises product managers, designers, developers, and potentially operations specialists who collaborate to build and enhance the company's core digital products.

Methodology:

• Operates with a strong emphasis on data-driven decision-making and user-centric design principles.

• Utilizes an agile development methodology to ensure rapid iteration and continuous improvement of products.

• Focuses on building an integrated energy system controlled by "Heartbeat AI," indicating a sophisticated approach to automation and optimization.

• Values bringing together regional craftsmanship with scalable software solutions.

Company Website: http://1komma5grad.com

📝 Enhancement Note: The company's mission to "Live on wind and sunlight forever for free" and build the "energy system of the future" implies a culture driven by purpose, innovation, and a commitment to sustainability. The rapid growth and international presence suggest a demanding yet rewarding environment for driven professionals.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a (Senior) Product Designer, indicating a mid-to-senior level position. It requires a minimum of 3 years of experience and the ability to work autonomously, own features, and contribute to product vision. This level typically involves leading design initiatives for specific product areas and mentoring junior team members.

Reporting Structure: The Senior Product Designer will likely report to a Head of Design, Design Lead, or Product Lead within the B2B team. They will collaborate closely with Product Managers, Software Developers, and potentially other operational stakeholders.

Operations Impact: While this is a Product Designer role, its impact on operations is significant. By designing intuitive and efficient B2B tools (offer tool, operating system, installation manager), the designer directly influences the operational efficiency of installation companies, streamlines customer onboarding, and contributes to the overall scalability and effectiveness of 1KOMMA5°'s energy transition mission. Good design directly translates to reduced operational friction, faster sales cycles, and improved customer satisfaction.

Growth Opportunities:

• Skill Specialization: Develop deeper expertise in B2B SaaS design, operational workflow optimization, or climate tech product development.

• Leadership Path: Progress into a Lead Product Designer or Design Manager role, overseeing design strategy and teams.

• Cross-functional Mobility: Transition into Product Management or related GTM operations roles due to a strong understanding of user needs and business processes.

• Industry Expertise: Become a subject matter expert in the rapidly growing climate tech and renewable energy sectors.

• Mentorship: Guide and mentor junior designers, contributing to their professional development.

📝 Enhancement Note: The growth opportunities highlight how a product design role in a mission-driven, operational-focused company can lead to diverse career paths, including those that lean more into operations strategy and leadership.

🌐 Work Environment

Office Type: Hybrid work model, with the option to work remotely within Germany or from one of the company's office hubs located in Hamburg, Berlin, or Munich. This offers flexibility while maintaining opportunities for in-person collaboration.

Office Location(s): Hamburg, Berlin, or Munich, Germany. These are major tech and business hubs, offering vibrant work environments and good accessibility.

Workspace Context:

• A dynamic and international work environment characterized by rapid growth and a mission-driven culture.

• Collaboration is key, with opportunities to work closely with product managers, developers, and other designers, fostering a community of innovation.

• Access to modern tools and technology is implied, supporting efficient design and development processes.

• The company's focus on the energy transition and climate tech suggests a work environment where employees are passionate about making a positive impact.

Work Schedule: Standard full-time work schedule (approximately 40 hours/week), with flexibility provided by the remote work option, allowing for better integration of personal and professional life. This flexibility is crucial for designers who often require focused periods for deep work.

📝 Enhancement Note: The hybrid and remote-friendly nature of the role, coupled with office options in major German cities, provides a modern and adaptable work environment conducive to creative and focused design work.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A brief call with HR or a recruiter to assess basic qualifications, cultural fit, and interest in the role and company mission.

• Portfolio Review & Presentation: Candidates will be asked to present their portfolio, focusing on 2-3 key projects. Be prepared to walk through your design process, rationale behind key decisions, and the impact of your work. Expect questions about your approach to B2B design and operational workflows.

• Design Challenge/Case Study: A practical exercise, potentially involving a take-home assignment or an in-person/virtual workshop, to assess your problem-solving skills, design thinking, and ability to translate complex requirements into intuitive solutions. This may focus on a specific B2B operational challenge.

• Team/Stakeholder Interviews: Discussions with Product Managers, Developers, and potentially other designers or operational leads to evaluate collaboration skills, technical understanding, and cultural alignment.

• Final Interview: A conversation with a senior leader (e.g., Head of Product, CTO, CEO) to discuss your overall experience, strategic thinking, and long-term fit with the company.

Portfolio Review Tips:

• Curate for Relevance: Select projects that best demonstrate your experience with B2B products, operational tools, or complex digital systems. Highlight how your designs improved efficiency or user experience in a business context.

• Tell a Story: Structure your case studies to clearly articulate the problem, your role, the process you followed, the challenges you overcame, your solutions, and the measurable outcomes.

• Show, Don't Just Tell: Use visuals effectively – wireframes, user flows, mockups, prototypes, and data visualizations – to illustrate your design thinking and execution.

• Quantify Impact: Whenever possible, include metrics that demonstrate the success of your designs (e.g., increased conversion rates, reduced task completion time, improved user satisfaction scores, operational cost savings).

• Be Ready for Deep Dives: Anticipate questions about your design decisions, trade-offs you made, and how you handled feedback.

Challenge Preparation:

• Understand the Context: If given a take-home challenge, thoroughly research 1KOMMA5°'s business, mission, and target users (installation companies, internal operations).

• Focus on Process: Demonstrate a structured approach to problem-solving, even if you don't have a perfect solution. Show your thought process, research methods, and how you would iterate.

• Prioritize and Justify: Be prepared to make design choices and justify them based on user needs, business goals, and feasibility.

• Presentation Skills: Practice presenting your work concisely and clearly, managing your time effectively.

📝 Enhancement Note: The emphasis on B2B and operational tools in the role description means that portfolio projects showcasing an understanding of business processes, internal workflows, and B2B user journeys will be particularly impactful.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma (highly likely, industry standard), Sketch, Adobe XD. Candidates should be proficient in at least one, with Figma being the most common.

• User Research & Testing: Tools like UserTesting.com, Lookback, Maze, or internal methodologies for gathering user feedback.

• Collaboration & Project Management: Jira, Confluence (common in agile environments for tracking tasks and documenting processes).

Analytics & Reporting:

• While not directly a designer's primary tool, understanding how to interpret data from analytics platforms (e.g., Google Analytics, Mixpanel, Amplitude) to inform design decisions is beneficial.

CRM & Automation:

• While the designer won't manage CRM systems, understanding how B2B CRM platforms (e.g., Salesforce, HubSpot) and automation tools integrate with operational workflows can provide valuable context for designing effective user experiences.

📝 Enhancement Note: Proficiency with modern design and prototyping tools like Figma is essential. An understanding of how design impacts data capture and operational workflows within CRM and automation systems will be a significant advantage.

👥 Team Culture & Values

Operations Values:

• Purpose-Driven: A strong commitment to the company's mission of accelerating the energy transition and contributing to a sustainable future. This translates to a desire to build products that have a tangible positive impact.

• Innovation & Agility: A culture that encourages new ideas, rapid iteration, and adaptability in a fast-paced scale-up environment. Expect a willingness to experiment and learn.

• Collaboration & Transparency: Open communication and teamwork are vital, especially in a cross-functional setting where designers work closely with product, engineering, and operations.

• User-Centricity: A deep focus on understanding and serving the needs of users, ensuring that design solutions are intuitive, effective, and valuable.

• Execution & Impact: A results-oriented approach where individuals are empowered to take ownership and drive projects to successful completion, making a measurable difference.

Collaboration Style:

• Cross-functional Integration: Designers are integral members of product teams, working hand-in-hand with Product Managers and Engineers throughout the development lifecycle.

• Feedback-Oriented: A culture of constructive feedback, where design solutions are openly reviewed and improved upon by peers and stakeholders.

• Knowledge Sharing: Encouragement to share best practices, design patterns, and learnings within the design community and broader organization.

• Data-Informed: While valuing intuition and creativity, decisions are increasingly informed by user data, analytics, and performance metrics.

📝 Enhancement Note: The combination of a strong mission, agile practices, and cross-functional teamwork suggests an environment where designers can have significant influence and contribute strategically to operational improvements.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing B2B Complexity with Simplicity: Designing intuitive user experiences for complex operational workflows and B2B users who may have varying technical proficiencies. This requires a deep understanding of user needs and business processes.

• Rapid Growth Environment: Adapting to a fast-paced scale-up where priorities can shift, and processes are continuously evolving. This requires resilience and adaptability.

• Cross-functional Alignment: Ensuring alignment across product, engineering, and diverse operational teams with potentially different perspectives and priorities.

• Quantifying Design Impact: Effectively measuring and communicating the ROI of design initiatives, especially in a B2B operational context where impact might be indirect or longer-term.

Learning & Development Opportunities:

• Climate Tech Expertise: Gaining in-depth knowledge of the renewable energy sector and the challenges of the energy transition.

• B2B SaaS Design Specialization: Deepening skills in designing for enterprise-level software, internal tools, and complex business processes.

• Influence and Strategy: Developing strategic thinking and influencing product direction, moving beyond execution to shaping the product vision.

• Mentorship and Leadership: Opportunities to mentor junior designers and grow into leadership roles within the design function.

• Industry Exposure: Participating in relevant conferences or workshops related to design, climate tech, or energy innovation.

📝 Enhancement Note: The challenges presented are common in high-growth tech companies, particularly those focused on complex B2B solutions. Successfully navigating these challenges offers significant opportunities for professional growth and skill development.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to design for a complex B2B operational workflow. What was the challenge, and how did your design address it?" (Focus on process, user needs, and impact.)

• "How do you balance user needs with business objectives and technical constraints in your design process?" (Highlight your problem-solving and trade-off decision-making skills.)

Company & Culture Questions:

• "What interests you about 1KOMMA5°'s mission and our role in the energy transition?" (Demonstrate genuine interest and alignment with company values.)

• "How do you approach collaboration within a cross-functional team, especially with product managers and engineers?" (Emphasize teamwork, communication, and compromise.)

Portfolio Presentation Strategy:

• Focus on B2B/Operational Impact: For each project, clearly articulate the business problem or operational challenge, your specific contribution, and the resulting improvements (e.g., efficiency gains, cost savings, user satisfaction).

• Showcase Your Process: Walk through your methodology step-by-step, explaining why you made certain design decisions. Use visuals to illustrate your journey from problem to solution.

• Quantify Results: Whenever possible, present metrics that demonstrate the success of your designs. If direct metrics are unavailable, discuss anticipated outcomes or qualitative feedback.

• Tailor to 1KOMMA5°: If possible, subtly weave in how your skills and experience align with 1KOMMA5°'s mission and the specific challenges of the B2B operational tools.

📝 Enhancement Note: Preparation should focus on demonstrating an understanding of B2B operational contexts, user-centric design within business constraints, and the ability to articulate design impact through process and measurable outcomes.

📌 Application Steps

To apply for this (Senior) Product Designer position:

• Submit your application through the provided link on join.com.

• Portfolio Customization: Tailor your portfolio to highlight projects demonstrating experience with B2B products, complex operational workflows, or SaaS platforms. Emphasize case studies that show how your designs improved efficiency and user experience in a business context.

• Resume Optimization: Ensure your resume clearly outlines your 3+ years of product design experience, highlighting relevant skills such as UX/UI, visual design, accessibility, agile methodologies, and any experience in climate tech or B2B environments. Use keywords from the job description.

• Interview Preparation: Practice presenting your portfolio, focusing on articulating your design process, rationale, and the quantifiable impact of your work. Prepare to discuss your approach to B2B design challenges and your interest in 1KOMMA5°'s mission.

• Company Research: Thoroughly research 1KOMMA5°, their mission, their products (especially the B2B offerings), and their position in the climate tech market. Understand their core values and how your own align.

⚠️ 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.

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