Senior Product Designer (f/m/d)

📍 Job Overview

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

Company: think-cell

Location: Berlin, Germany

Job Type: Full-time

Category: Product Design / User Experience

Date Posted: August 13, 2026

Experience Level: Mid-Senior Level (4+ years)

Remote Status: On-site

🚀 Role Summary

• Drive the end-to-end user experience design for innovative AI-powered product features, from initial concept through to polished, shipped interactions.

• Collaborate closely with Product Managers and Engineers as a core member of product teams, transforming customer problems into intuitive and delightful user interfaces.

• Lead product discovery efforts by conducting user research, customer interviews, and usability testing to ensure designs are grounded in evidence and customer needs.

• Actively influence product direction and long-term vision, advocating for the best possible user experience while balancing technical constraints and business objectives.

• Contribute to elevating design quality across the product area by identifying emerging patterns and developing reusable design solutions within a growing design system.

📝 Enhancement Note: This role is classified under Product Design with a strong emphasis on User Experience (UX) and User Interface (UI) design, specifically within the B2B SaaS and productivity software domain. The "f/m/d" designation indicates the role is open to all genders and nationalities, common in German job postings. The focus on AI and data-rich products suggests a need for designers comfortable with complex information visualization and intelligent feature design.

📈 Primary Responsibilities

• Own the complete user experience lifecycle for assigned product areas, from ideation and user flow mapping to detailed interface design and post-launch iteration.

• Translate complex customer problems and feature requirements into intuitive, user-friendly, and visually compelling interfaces, particularly for data-rich and highly visual applications.

• Conduct and synthesize user research, including customer interviews, surveys, and usability testing, to inform design decisions and validate solutions.

• Partner with Product Management and Engineering teams throughout the product development process, contributing to strategy, defining scope, and ensuring design integrity.

• Develop and iterate on high-fidelity prototypes to effectively communicate design concepts and gather early feedback from stakeholders and users.

• Contribute to the evolution and application of think-cell's design system, ensuring consistency and scalability across the product suite.

• Advocate for user needs and best practices in design, presenting design rationale and recommendations clearly, backed by data and user insights.

• Participate in client calls and discussions to gain direct customer insights and ensure designs meet real-world user demands.

• Identify opportunities for design innovation and improvement, proactively suggesting solutions that enhance user productivity and satisfaction.

• Collaborate with engineers to ensure accurate implementation of designs, providing detailed specifications and design support throughout the development cycle.

📝 Enhancement Note: The responsibilities highlight a hands-on design role with significant ownership and influence, typical of a Senior Product Designer. The emphasis on "owning the experience," "leading discovery," and "shaping direction" indicates a need for a proactive, strategic designer who can operate with autonomy and contribute beyond just execution. The mention of "AI-powered" and "data-rich" products implies a specialization requirement.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's or Master's degree in Design, Human-Computer Interaction, Computer Science, or a related field is often preferred for senior roles in this domain. Equivalent practical experience will also be considered.

Experience: 4+ years of professional product design experience, with a demonstrable track record in designing complex B2B, SaaS, or productivity software.

Required Skills:

• Proven experience in end-to-end product design, encompassing discovery, ideation, wireframing, prototyping, UI design, and user testing.

• Strong portfolio showcasing design solutions for complex challenges, particularly in B2B, SaaS, or productivity software, with measurable outcomes.

• Expertise in modern design and prototyping tools, with a strong preference for Figma, and proficiency in creating high-fidelity interactive prototypes.

• Solid experience conducting user research, usability testing, and customer interviews to gather insights and validate design decisions.

• Familiarity with design systems and experience in building upon or evolving existing design components and patterns.

• Ability to translate ambiguous problems into clear, actionable design solutions and make independent, sound decisions.

• Resilience and ability to thrive in a dynamic environment, managing evolving processes and working effectively under pressure.

• Fluency in English, both written and spoken, for effective communication within an international team. Preferred Skills:

• Experience with AI-powered products and/or data visualization tools.

• Familiarity with presentation or data-visualization software.

• Understanding of AI-assisted design approaches.

• Experience working within Agile development methodologies.

• Familiarity with think-cell's existing product suite or similar productivity tools.

📝 Enhancement Note: The experience requirement of "4+ years" aligns with a Senior level. The emphasis on "complex B2B, SaaS, or productivity software" and a portfolio demonstrating "shipped, measurable outcomes" indicates a need for practical, results-oriented design experience rather than purely conceptual work. The mention of "AI-assisted approaches" suggests an openness to leveraging new technologies in the design process.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A curated portfolio demonstrating the end-to-end design process for at least 2-3 complex B2B SaaS or productivity software projects.

• Each case study should clearly articulate the problem statement, your role and responsibilities, the discovery and research methodologies used, design iterations, final solutions, and importantly, the measurable outcomes or impact of your designs.

• Showcase proficiency in user research, usability testing, and how these insights informed your design decisions and iterations.

• Highlight your interaction and visual design craft, especially for data-rich or complex interfaces, with clear examples of wireframes, user flows, and final UI designs.

• Include examples of your work with design systems, demonstrating how you've utilized, extended, or contributed to them.

• For AI-related projects, demonstrate how you approached designing for uncertainty, user trust, and intelligent features. Process Documentation:

• Candidates are expected to articulate their design process, including how they approach discovery, problem definition, ideation, prototyping, testing, and iteration.

• Ability to explain how they integrate user feedback and data into their design workflow.

• Demonstrate understanding of how to collaborate effectively with product management and engineering to move from concept to shipped product.

• Articulate how they ensure design quality and consistency, potentially through the use of design systems or style guides.

📝 Enhancement Note: The portfolio requirements are crucial for this role, emphasizing a deep understanding of the design process, user-centricity, and tangible results. The expectation for "measurable outcomes" and "shipped, measurable outcomes" is a key indicator of the company's focus on impact. The mention of "AI-assisted approaches" in the requirements suggests that showcasing experience with innovative design tools and workflows will be beneficial.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior Product Designers in Berlin, Germany, with 4+ years of experience in B2B SaaS, a competitive salary range would typically fall between €70,000 and €95,000 annually. This estimate considers the cost of living in Berlin and the specialized nature of the role, particularly its focus on AI and complex software.

Benefits:

• Competitive salary and potential for performance-based bonuses.

• Comprehensive health insurance coverage, including dental and vision.

• Generous paid time off (vacation days, public holidays).

• Opportunities for professional development, including conferences, workshops, and training.

• Contribution to a pension scheme.

• Potential for stock options or equity, depending on company policy.

• Relocation assistance for international candidates.

• Access to modern office facilities in a central Berlin location.

• Team events and social activities fostering a collaborative environment.

Working Hours: think-cell typically operates on a standard full-time work week. While specific hours are not detailed, a 40-hour work week is common in Germany. The company culture likely supports focused work with flexibility in daily scheduling, allowing for effective collaboration within product teams while respecting individual work styles.

📝 Enhancement Note: Salary estimation for a Senior Product Designer in Berlin, Germany, with 4+ years of experience in B2B SaaS and a focus on AI, places the range between €70,000 - €95,000. This is derived from analysis of similar roles on platforms like Glassdoor, LinkedIn Salary, and local German job boards, factoring in the company's industry (software), location (Berlin), and the specified experience level. Benefits are inferred based on standard offerings for tech companies in Germany and the emphasis on employee well-being and development.

🎯 Team & Company Context

🏢 Company Culture

Industry: Software Development, Productivity Tools, AI Technology. think-cell operates within the B2B software sector, specifically focusing on enhancing productivity through advanced tools that integrate with Microsoft Office. Their recent focus on AI indicates a forward-looking approach to technology adoption.

Company Size: 220+ employees. This indicates a mid-sized company that offers the stability and resources of a larger organization while retaining a more agile and potentially collaborative team environment.

Founded: 2002. With over two decades of experience, think-cell has established a strong market presence and a deep understanding of its user base, building a reputation for quality and innovation.

Team Structure:

• The Product Design team operates as an embedded part of product teams, working closely with Product Managers and Software Engineers.

• This collaborative structure ensures design is integrated from the earliest stages of discovery and remains central throughout the development lifecycle.

• Designers are expected to be autonomous within their product areas but also to contribute to a broader design community within the company.

• The reporting structure for this Senior role likely involves a Design Lead or Head of Product, with direct collaboration across cross-functional product development units. Methodology:

• Data-driven decision-making is a core principle, encouraging designers to ground their suggestions and choices in data and user research.

• A strong emphasis is placed on understanding and solving real customer problems, with direct engagement through interviews and client calls.

• Iterative design and rapid prototyping are key to quickly validating concepts and refining user experiences.

• A forward-thinking approach is encouraged, embracing change and challenging the status quo, especially with the integration of AI.

Company Website: https://www.think-cell.com/

📝 Enhancement Note: The company culture at think-cell is defined by its values: Forward Thinking, Ownership, Customer First, Unified Team, and Strive for Excellence. This suggests an environment where initiative is valued, users are prioritized, and high standards are maintained. The size and founding date indicate a mature yet innovative company. The embedded design team structure is typical for modern product development, fostering close collaboration.

📈 Career & Growth Analysis

Operations Career Level: This role is designated as "Senior Product Designer," indicating a mid-to-senior level position. It requires significant autonomy, ownership of complex projects, and the ability to influence product direction. A Senior Designer is expected to mentor junior team members and contribute to the strategic evolution of the design practice.

Reporting Structure: The Senior Product Designer will likely report to a Design Lead or Head of Product. They will work in close collaboration with Product Managers and Engineering teams within specific product pods or feature areas. This structure promotes cross-functional synergy and ensures design is integrated early and continuously.

Operations Impact: The Senior Product Designer has a direct and significant impact on the success of think-cell's AI product. By creating intuitive, efficient, and delightful user experiences for data-rich and complex functionalities, they enhance user productivity, drive adoption, and contribute to customer satisfaction and retention. Their work directly influences how users perceive and interact with the software, impacting its perceived value and market competitiveness.

Growth Opportunities:

• Skill Advancement: Opportunities to deepen expertise in AI-driven design, data visualization, and complex B2B SaaS product design. Potential to lead design initiatives for new AI features.

• Leadership Development: Potential to grow into a Lead Product Designer role, managing a team, defining design strategy, and mentoring other designers.

• Cross-functional Exposure: Gaining deeper insights into product strategy, engineering challenges, and market dynamics through close collaboration with other departments.

• Design System Contribution: Playing a key role in shaping and expanding the company's design system, contributing to its long-term vision and governance.

• Innovation: Being at the forefront of integrating AI into productivity software, offering a unique opportunity to innovate and shape the future of user experience in this domain.

📝 Enhancement Note: The growth opportunities are framed to appeal to ambitious designers. The emphasis on influencing product direction and contributing to the design system aligns with typical senior-level career progression. The specific mention of AI and data visualization provides clear avenues for specialization and expertise development.

🌐 Work Environment

Office Type: The role is based in Berlin, Germany, and is described as "On-site," indicating a preference for in-office work. This suggests a collaborative environment where face-to-face interaction and team cohesion are valued.

Office Location(s): Berlin, Germany. Specific details about the office location within Berlin (e.g., district, proximity to public transport) would be available during the application process.

Workspace Context:

• The workspace is likely designed to foster collaboration, with open-plan areas, meeting rooms, and dedicated spaces for focused work.

• Access to modern design tools and technology, including high-performance workstations and relevant software licenses (e.g., Figma).

• Opportunities for informal interactions with colleagues from product, engineering, and other departments, facilitating knowledge sharing and team building.

• The environment is expected to support think-cell's values of striving for excellence and unified teamwork, encouraging a professional yet engaging atmosphere.

Work Schedule: While a standard 40-hour work week is assumed, the company likely offers some flexibility in daily start and end times, enabling employees to manage their schedules effectively while ensuring core collaboration hours are met. This flexibility is important for designers who often work in creative sprints.

📝 Enhancement Note: The "On-site" requirement implies a strong emphasis on in-person collaboration and company culture integration. The mention of Berlin as the location suggests a vibrant tech hub environment. The workspace context is inferred from typical modern tech office setups designed for productivity and collaboration.

📄 Application & Portfolio Review Process

Interview Process:

• Application Screening: Initial review of applications and portfolios against the stated requirements. Candidates with strong portfolios demonstrating relevant experience will be shortlisted.

• Hiring Manager/Team Interview: A discussion focused on your experience, approach to design challenges, and understanding of product development. This may include a portfolio walkthrough.

• Design Challenge/Case Study: Candidates might be asked to complete a take-home design challenge or present a detailed case study from their portfolio. This assesses problem-solving skills, design process, and communication.

• Cross-functional Interviews: Meetings with Product Managers and Engineers to evaluate collaboration style, technical understanding, and ability to integrate with the product team.

• Final Interview: A discussion with senior leadership to assess cultural fit, strategic thinking, and long-term potential.

Portfolio Review Tips:

• Focus on Process & Impact: Clearly articulate your design process for each project, emphasizing how you identified problems, conducted research, iterated on solutions, and what the measurable outcomes were. Quantify impact wherever possible (e.g., increased conversion, reduced support tickets, improved task completion time).

• Showcase Data & AI Experience: If you have experience with data visualization or AI-powered features, highlight these projects prominently. Explain your approach to designing for complexity, user trust, and intelligent systems.

• Demonstrate Collaboration: Use your portfolio to show how you worked with product managers, engineers, and stakeholders. Include examples of wireframes, user flows, and prototypes that facilitated communication.

• Visual Craft & Tool Proficiency: Ensure your portfolio is visually polished and effectively showcases your interaction and visual design skills. Mention your proficiency with tools like Figma.

• Tailor to think-cell: Research think-cell's products and target audience. Frame your case studies to highlight how your skills and experience align with their needs, particularly in B2B SaaS and productivity software.

Challenge Preparation:

• Understand the Context: If given a design challenge, ensure you fully understand the problem statement, target users, and business goals. Ask clarifying questions.

• Emphasize Process: Outline your thought process clearly. Explain the assumptions you made, the research you would conduct (even if simulated), and the rationale behind your design decisions.

• Prototype and Iterate: Demonstrate your ability to create prototypes and articulate how you would iterate based on feedback.

• Consider Technical Constraints: For a software company, briefly acknowledging potential technical considerations can be beneficial.

• Presentation Skills: Practice presenting your work concisely and engagingly, focusing on storytelling and clear articulation of your design rationale and impact.

📝 Enhancement Note: The interview process is structured to assess a candidate's end-to-end design capabilities, collaborative skills, and cultural fit. The portfolio is a critical component, and candidates must be prepared to deep-dive into their process and the impact of their work. The potential for a design challenge or case study presentation requires thorough preparation.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Explicitly mentioned as a required tool for design and rapid prototyping. This will be the primary tool for creating wireframes, user flows, high-fidelity mockups, and interactive prototypes.

• Prototyping Tools: Beyond Figma, familiarity with other prototyping tools might be beneficial, though Figma's capabilities are often sufficient.

• User Research Platforms: Tools for conducting remote user interviews, usability testing, and surveys (e.g., UserTesting.com, Lookback, Maze).

• Collaboration Tools: Familiarity with tools like Slack, Jira, Confluence, or similar platforms for team communication and project management.

Analytics & Reporting:

• Product Analytics Tools: Experience with tools like Amplitude, Mixpanel, or Google Analytics to understand user behavior, track feature adoption, and measure design impact.

• Data Visualization Tools: Familiarity with tools used for presenting data insights, potentially including those within the think-cell suite itself or other standard BI tools.

CRM & Automation:

• While not directly a designer's primary tool, understanding how CRM data (e.g., Salesforce) or marketing automation platforms influence user journeys and customer insights can be advantageous for B2B product design.

📝 Enhancement Note: Figma is highlighted as a core requirement. The inclusion of user research platforms and product analytics tools is inferred from the job description's emphasis on data-driven design and user research. Understanding how design impacts business metrics through analytics is key.

👥 Team Culture & Values

Operations Values:

• Forward Thinking: Embracing new technologies like AI, challenging existing paradigms, and proactively seeking innovative design solutions. This means being open to experimenting with new tools and methodologies.

• Ownership: Taking full responsibility for the user experience of your product area, from conception to delivery, and learning from both successes and failures. This translates to proactive problem-solving and accountability.

• Customer First: Prioritizing the delivery of lasting value to users by deeply understanding their needs and ensuring designs are intuitive, efficient, and solve real problems. This involves direct customer interaction and advocacy.

• Unified Team: Fostering collaboration, respect, and integrity within cross-functional product teams and the broader design community. This means effective communication and a willingness to support colleagues.

• Strive for Excellence: Setting ambitious goals for design quality and user experience, and diligently pursuing high standards in all aspects of work, from detailed UI to strategic product direction.

Collaboration Style:

• Embedded Team Member: Working as an integral part of cross-functional product teams, fostering close, continuous collaboration with Product Managers and Engineers.

• Data-Informed Dialogue: Engaging in design discussions grounded in user research, data analytics, and customer feedback, enabling constructive and objective decision-making.

• Proactive Communication: Regularly sharing design progress, rationale, and insights with team members and stakeholders to ensure alignment and gather feedback early and often.

• Mentorship and Knowledge Sharing: As a Senior Designer, contributing to the growth of the design team through mentorship and sharing best practices, fostering a culture of continuous learning.

📝 Enhancement Note: The company values are explicitly stated and directly translate into expected behaviors and working styles for designers, emphasizing a proactive, user-centric, and collaborative approach with a high bar for quality.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for AI Complexity: Developing intuitive user experiences for AI-powered features where user understanding, trust, and control can be complex challenges. This requires thoughtful interaction design and clear communication of AI capabilities and limitations.

• Balancing Ambiguity and Structure: Navigating loosely defined problems and evolving processes while still delivering clear, well-defined design solutions. This requires strong problem-solving skills and adaptability.

• Data-Rich Interfaces: Creating visually clear and actionable interfaces for data-heavy products, ensuring users can easily interpret and utilize complex information.

• Cross-functional Alignment: Ensuring consistent design vision and execution across product teams with diverse priorities and technical constraints.

• Continuous Learning: Staying abreast of rapid advancements in AI, design tools, and user expectations to maintain a leading edge in product design.

Learning & Development Opportunities:

• AI Design Specialization: Deepening expertise in designing for artificial intelligence, machine learning, and data-driven products.

• Advanced Prototyping & Tools: Mastering cutting-edge design tools and techniques, potentially including AI-assisted design workflows.

• Product Strategy Influence: Gaining experience in shaping product roadmaps and long-term vision through close partnership with Product Management.

• Mentorship and Leadership: Developing leadership skills through guiding junior designers and contributing to the strategic direction of the design practice.

• Industry Exposure: Attending relevant design conferences, workshops, and webinars focused on UX, AI, and SaaS product development.

📝 Enhancement Note: The challenges identified are specific to the role's context (AI, data-rich products, B2B SaaS) and the company's stated values (ownership, striving for excellence). The growth opportunities are framed to align with overcoming these challenges and advancing a design career.

💡 Interview Preparation

Strategy Questions:

• "How would you approach designing a new AI-powered feature for a productivity tool, considering user trust and explainability?" (Focus on your process for understanding AI capabilities, user needs, and how to communicate complex functionality simply.)

• "Describe a time you had to design for an ambiguous problem with limited upfront information. How did you proceed, and what was the outcome?" (Highlight your ability to structure problems, make decisions with incomplete data, and iterate.)

• "How do you ensure your designs are data-informed? Can you give an example of how data influenced a design decision you made?" (Prepare to discuss your experience with user research, A/B testing, and product analytics.)

• "How do you balance user needs with technical constraints and business goals in your design process?" (Showcase your ability to negotiate and find optimal solutions that satisfy multiple stakeholders.) Company & Culture Questions:

• "Based on our values (Forward Thinking, Ownership, Customer First, Unified Team, Strive for Excellence), how do you see yourself contributing to our culture?" (Research the values and prepare examples from your experience that demonstrate alignment.)

• "What excites you about think-cell's products, and how do you envision your role impacting our AI initiatives?" (Show your understanding of the company's mission and your potential contribution.)

• "How do you approach collaboration within a cross-functional team (Product, Engineering, Design)?" (Emphasize your experience as an embedded team member and your communication style.) Portfolio Presentation Strategy:

• Tell a Story: For each case study, frame it as a narrative: the problem, your journey to the solution, the challenges you faced, and the impact achieved.

• Highlight Your Role: Be explicit about your contributions, especially if it was a team project. Use "I" for your direct actions and "We" for team efforts.

• Show, Don't Just Tell: Use visuals (wireframes, user flows, prototypes, final UI) to illustrate your process and solutions. Explain why you made certain design choices.

• Quantify Impact: Wherever possible, present metrics and measurable outcomes that demonstrate the success of your designs.

• Be Prepared for Deep Dives: Anticipate detailed questions about your process, decision-making, and the trade-offs you made. Be ready to discuss alternative approaches you considered.

📝 Enhancement Note: The strategy questions are designed to probe the candidate's core design skills, problem-solving abilities, and alignment with the company's specific challenges (AI, data-rich products). The portfolio presentation advice focuses on demonstrating impact and process, crucial for a senior role.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your application through the provided Greenhouse link.

• Curate Your Portfolio: Select 2-3 of your strongest B2B SaaS or productivity software projects that best showcase your end-to-end design process, problem-solving skills, and measurable outcomes. Tailor the selection and presentation to highlight your experience with complex interfaces, data visualization, and ideally, any AI-related work.

• Optimize Your Resume: Ensure your resume clearly highlights your 4+ years of relevant product design experience, proficiency in Figma, experience with user research, and achievements in B2B/SaaS environments. Use keywords from the job description.

• Prepare Your Portfolio Presentation: Practice walking through your selected case studies. Be ready to articulate your design process, rationale, challenges, and the impact of your work, focusing on how you collaborate and drive product direction.

• Research think-cell: Familiarize yourself with think-cell's products, company values, and recent developments (especially regarding AI). Prepare to discuss how your skills and approach align with their mission and culture.

⚠️ 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.