Product Designer

📍 Job Overview

Job Title: Product Designer

Company: mediasmart

Location: EMEA (Preferable in Spain)

Job Type: Full-time

Category: Product Design / UX/UI Design

Date Posted: 2026-06-02T15:55:05

Experience Level: 2-5 years

Remote Status: On-site

🚀 Role Summary

• Design and evolve complex features and workflows for mediasmart’s programmatic advertising platform, focusing on campaign management, audience segmentation, analytics, reporting, and optimization tools.

• Create intuitive user experiences for data-rich interfaces, including dashboards, tables, filters, and advanced configuration workflows, essential for complex B2B SaaS environments.

• Maintain and advance the company’s design system and UI Kit in Figma, ensuring consistency, scalability, and efficient adoption across multiple products and development teams.

• Collaborate closely with Product Managers and Front-End Engineers throughout the entire product development lifecycle, from initial discovery and ideation through to final implementation.

📝 Enhancement Note: This role is specifically focused on product design within the AdTech industry, emphasizing the design of complex, data-heavy B2B SaaS applications. The core responsibility involves not just creating interfaces but also building and scaling a design system to support multiple products and engineering teams, requiring strong systems thinking and a deep understanding of UX principles for dense information architecture.

📈 Primary Responsibilities

• Design intricate features and workflows for mediasmart’s programmatic platform, encompassing campaign management, audience segmentation, analytics, reporting, and optimization functionalities.

• Develop intuitive and user-friendly interfaces for data-intensive environments, such as dynamic dashboards, interactive tables, sophisticated filtering mechanisms, and advanced configuration workflows.

• Own the maintenance and evolution of mediasmart's design system and UI Kit within Figma, ensuring design consistency, scalability, and adherence to brand guidelines across all products and for various engineering teams.

• Foster close collaboration with Product Managers and Front-End Engineers throughout the product development lifecycle, from initial concept and user research to detailed design handoffs and post-implementation support.

• Proactively identify opportunities for UX improvements and propose innovative solutions that enhance usability, streamline operational efficiency, and elevate overall customer satisfaction within the AdTech ecosystem.

• Produce comprehensive design documentation, including wireframes, detailed user flows, high-fidelity mockups, interactive prototypes, and precise interaction specifications for engineering implementation.

• Document design decisions, established patterns, evolving guidelines, and best practices to facilitate long-term product scalability and knowledge transfer within design and development teams.

• Provide meticulous design handoff packages and actively partner with engineering teams to guarantee the faithful and high-quality implementation of designed solutions.

• Contribute significantly to the establishment and continuous improvement of design processes, standards, and the overall design culture within the organization.

• Champion user-centered design principles while adeptly balancing technical constraints, business objectives, and the unique demands of the AdTech landscape.

• Assist product teams in translating complex technical requirements and business needs into clear, elegant, and highly effective user experiences that drive adoption and satisfaction.

📝 Enhancement Note: The responsibilities highlight a need for a designer who can handle complexity, manage a design system, and integrate deeply with product and engineering. The emphasis on "data-rich interfaces" and "programmatic platform" suggests a need for experience in B2B SaaS environments, particularly within technical or analytical domains.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating equivalent practical experience and proficiency in product design principles is expected.

Experience: 3–5 years of professional experience as a Product Designer, UX/UI Designer, or in a similar role focused on digital product development. A proven track record of designing complex web applications with intricate information architecture and data-heavy workflows is essential.

Required Skills:

• Advanced proficiency in Figma, encompassing mastery of components, variables, Auto Layout, design system architecture, and shared library management for collaborative design workflows.

• Demonstrated experience in designing complex B2B web applications characterized by dense information architecture and data-intensive user workflows.

• Solid understanding of core UX principles, interaction design best practices, information architecture methodologies, and visual design aesthetics.

• Proven experience in environments where design systems and design processes required significant development, maturation, or scaling.

• Exceptional ability to manage multiple concurrent design projects and diverse stakeholder expectations with a high degree of autonomy and ownership.

• Experience collaborating effectively with Product Managers and Engineering teams within agile product development frameworks.

• Strong verbal and written communication skills, with the ability to articulate design rationale clearly and persuasively to both technical and non-technical audiences.

• Familiarity with component-based design systems, such as Material UI or similar established frameworks.

• Comfort and adaptability in fast-paced, evolving organizational settings demanding high levels of ownership and accountability.

Preferred Skills:

• Prior experience within the AdTech, Programmatic Advertising, MarTech, or B2B SaaS industries.

• Practical experience utilizing AI tools to enhance and streamline product design workflows.

• Basic comprehension of HTML and CSS to facilitate better collaboration with front-end developers and understand implementation constraints.

• Experience conducting user research, usability testing, and customer interviews independently.

• Familiarity with analytics tools, experimentation frameworks, and data-informed design practices to drive product decisions.

📝 Enhancement Note: The requirements emphasize advanced Figma skills, experience with design systems, and a specific aptitude for complex, data-heavy B2B applications. The preference for AdTech/SaaS experience and familiarity with AI tools points towards a forward-thinking design team.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least 2-3 detailed case studies demonstrating end-to-end product design processes for complex web applications, ideally within B2B SaaS or data-intensive environments.

• Highlight your contributions to building or maturing design systems, including examples of component libraries, design tokens, and system documentation in Figma.

• Illustrate your ability to design for data-heavy workflows, featuring examples of dashboards, reporting interfaces, or complex configuration tools with a focus on usability and efficiency.

• Present examples of user flows, wireframes, high-fidelity mockups, and interactive prototypes that clearly articulate design solutions and user journeys.

Process Documentation:

• Evidence of creating and maintaining design system documentation, including style guides, component usage guidelines, and best practices.

• Examples of documenting design decisions, user flows, and interaction specifications to ensure clarity for development teams.

• Showcase your approach to iterative design, including how you gather feedback, iterate on designs, and document changes or improvements.

📝 Enhancement Note: A strong portfolio is critical for this role, specifically showcasing experience with design systems, complex data interfaces, and collaborative workflows. Candidates should be prepared to walk through their design process and articulate their rationale for design decisions, emphasizing how they contribute to efficiency and scalability.

💵 Compensation & Benefits

Salary Range: Based on the experience level (3-5 years), location preference (Spain), and the specialized nature of AdTech/B2B SaaS product design, a competitive salary range for a Product Designer in Madrid, Spain, is estimated to be between €45,000 and €65,000 annually. This range can vary based on the candidate's specific experience, portfolio strength, and negotiation.

Benefits:

• Competitive salary and potential for performance-based bonuses.

• Comprehensive health insurance coverage.

• Opportunities for professional development, training, and attending industry conferences.

• Generous paid time off and company holidays.

• Potential for stock options or equity as part of the Affle Group.

• Collaborative and dynamic work environment with a focus on continuous learning and innovation.

• Access to cutting-edge AdTech tools and technologies.

Working Hours: The standard working hours are expected to be around 40 hours per week, aligning with typical full-time employment in Spain. While the role is on-site, mediasmart may offer some flexibility in work schedules, subject to team and operational needs.

📝 Enhancement Note: Salary estimates are based on market research for Product Designers with 3-5 years of experience in Madrid, Spain, considering the AdTech and B2B SaaS industry. Benefits are typical for a growing tech company within a larger group, with an emphasis on professional growth and employee well-being.

🎯 Team & Company Context

🏢 Company Culture

Industry: mediasmart operates within the AdTech (Advertising Technology) and MarTech (Marketing Technology) sectors, specifically focusing on programmatic advertising solutions for Connected TV (CTV), Mobile, and Digital Out-of-Home (DOOH). This is a rapidly evolving, data-driven industry where efficiency, scalability, and innovation are paramount.

Company Size: mediasmart is part of the Affle Group, a global AdTech company, suggesting it is a mid-to-large sized entity with significant reach and resources. This implies a structured environment with established processes but also opportunities for impact within a growing organization.

Founded: mediasmart was founded with a vision to simplify programmatic advertising through intuitive technology. As part of the Affle Group, it benefits from a broader corporate history and global presence.

Team Structure:

• The Product Design team likely consists of several designers, potentially specializing in different product areas or aspects of the user experience.

• Design operates in close alignment with Product Management and Engineering, forming cross-functional pods or squads responsible for specific product features or modules.

Methodology:

• Data Analysis & Insights: Design decisions are informed by user data, analytics, A/B testing results, and market trends within the AdTech space.

• Workflow Planning & Optimization: Focus on streamlining complex programmatic workflows for advertisers, making them more efficient and user-friendly.

• Automation & Efficiency: Emphasis on designing scalable solutions that leverage automation to improve operational processes for both internal teams and external clients.

Company Website: https://www.mediasmart.io/

📝 Enhancement Note: The company culture values leadership, curiosity, teamwork, and strong ownership, which are crucial for a designer working in a fast-paced, technical environment like AdTech. The focus is on collaboration and driving impact.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a mid-level Product Designer. It requires independent work, ownership of design initiatives, and the ability to contribute to the maturation of design systems and processes. The scope involves designing complex features and collaborating across multiple product lines.

Reporting Structure: The Product Designer will likely report to a Design Lead or Head of Product, working within cross-functional teams that include Product Managers and Engineering Leads. This structure fosters direct collaboration and shared responsibility for product outcomes.

Operations Impact: The Product Designer's work directly impacts the usability, efficiency, and adoption of mediasmart’s programmatic platform. By creating intuitive interfaces for complex data-heavy workflows, they enable advertisers to make better decisions, optimize campaign performance, and achieve measurable business outcomes, thereby contributing directly to revenue generation and customer retention.

Growth Opportunities:

• Operations Skill Advancement: Opportunities to deepen expertise in B2B SaaS design, AdTech product intricacies, and advanced UX methodologies.

• Design System Leadership: Potential to take on greater responsibility for the design system's architecture, governance, and evolution, perhaps leading to a Senior Product Designer role.

• Cross-Functional Leadership: Developing skills in influencing product strategy, mentoring junior designers, and contributing to design process improvements across the organization.

• Specialization: Potential to specialize in specific product areas like campaign management, analytics visualization, or audience segmentation design.

📝 Enhancement Note: This role offers significant growth potential within the specialized AdTech domain, with clear paths for technical advancement in design systems and broader influence on product strategy. The emphasis on ownership and proactive problem-solving suggests opportunities for leadership development.

🌐 Work Environment

Office Type: The role is primarily on-site, with a preference for the Madrid, Spain location, suggesting a collaborative office environment. This setting is ideal for fostering strong team cohesion, spontaneous brainstorming, and direct interaction with Product and Engineering colleagues.

Office Location(s): While the role is designated for EMEA and prefers Spain, the primary focus is on a physical presence in Madrid. This location offers a vibrant tech ecosystem and provides a base for collaboration within the company's European operations.

Workspace Context:

• The workspace is designed to facilitate collaboration, with opportunities for cross-functional team interaction and informal knowledge sharing among designers, product managers, and engineers.

• Access to up-to-date design tools and technology, including advanced Figma capabilities and potentially other relevant software for prototyping and user research.

• Regular opportunities for design critiques, team syncs, and project-specific working sessions to ensure alignment and drive project momentum.

Work Schedule: The work schedule is aligned with standard full-time employment (approximately 40 hours per week). While on-site, there may be some flexibility in daily start and end times, subject to team coordination and operational requirements, allowing for effective management of design tasks and project deadlines.

📝 Enhancement Note: The on-site requirement in Madrid highlights a company culture that values in-person collaboration and team synergy, particularly important for design teams working on complex, integrated products.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A brief call with a recruiter or hiring manager to assess overall fit, experience, and interest in the role and company.

• Portfolio Review & Design Discussion: A dedicated session where candidates present their portfolio, walking through 1-2 selected case studies. This stage focuses on design process, problem-solving, collaboration, and rationale behind design decisions. Expect questions about how you approach complex problems, manage design systems, and work with data-rich interfaces.

• Technical/Skills Assessment: Potentially a design challenge or a deep dive into specific Figma skills, design system principles, or collaboration with engineering. This might involve a take-home assignment or an in-person/virtual whiteboard exercise.

• Cross-Functional Interviews: Meetings with Product Managers and Engineering Leads to evaluate collaboration style, communication skills, and understanding of the product development lifecycle in an agile environment.

• Final Interview: A discussion with senior leadership (e.g., Head of Product, Design Lead) to assess cultural fit, strategic thinking, and long-term potential.

Portfolio Review Tips:

• Curate Strategically: Select 2-3 case studies that best showcase your experience with complex B2B SaaS applications, data-heavy interfaces, and design system development. Tailor your selection to highlight skills mentioned in the job description.

• Showcase Process, Not Just Pixels: Clearly articulate your design process, from problem definition and user research to ideation, iteration, and final implementation. Explain why you made certain design decisions.

• Quantify Impact: Wherever possible, include metrics or outcomes that demonstrate the business impact of your designs (e.g., improved conversion rates, increased user efficiency, reduced support tickets).

• Highlight Collaboration: Show how you partnered with Product Managers and Engineers. Include examples of design handoffs, feedback incorporation, and problem-solving together.

• Design System Expertise: If you have experience building or contributing to design systems, dedicate a section or case study to this. Explain your approach to component creation, documentation, and ensuring scalability and consistency.

• Figma Proficiency: Be prepared to discuss your Figma workflow, including advanced features like components, variants, Auto Layout, and design system management.

Challenge Preparation:

• Understand the Domain: Familiarize yourself with AdTech, programmatic advertising concepts, and common advertiser workflows. This will help you approach any design challenge with relevant context.

• Focus on User Pain Points: Anticipate challenges related to data visualization, complex configuration, and optimizing user journeys in a technical environment.

• Structure Your Approach: For any design challenge, outline your steps: defining the problem, identifying users/stakeholders, brainstorming solutions, sketching, creating wireframes/prototypes, and considering implementation.

• Articulate Trade-offs: Be ready to discuss design trade-offs, technical constraints, and how you balance user needs with business objectives.

📝 Enhancement Note: The interview process emphasizes a portfolio review that demonstrates practical experience with complex B2B SaaS design, design systems, and strong collaboration skills. Candidates should prepare to articulate their design process and quantifiable impact.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design tool for wireframing, UI design, prototyping, and design system management. Advanced proficiency with components, variants, Auto Layout, variables, and shared libraries is essential.

• Prototyping Tools: While Figma offers robust prototyping, familiarity with other dedicated tools might be beneficial for specific use cases.

• Design System Management: Tools and methodologies for managing and scaling design systems effectively.

Analytics & Reporting:

• Analytics Platforms: Familiarity with tools like Google Analytics, Amplitude, Mixpanel, or similar for understanding user behavior and product performance.

• Data Visualization Tools: Understanding how to design clear and effective data visualizations within dashboards and reports.

CRM & Automation:

• AdTech Platforms: While not a direct design tool, understanding the functionalities of DSPs (Demand-Side Platforms), SSPs (Supply-Side Platforms), and campaign management interfaces is crucial for context.

• Project Management Tools: Familiarity with tools like Jira, Asana, or Trello for tracking tasks, managing workflows, and collaborating with engineering teams.

📝 Enhancement Note: Figma is the central tool. The role requires not just proficiency but advanced application in building and maintaining design systems. Familiarity with analytics and the AdTech ecosystem is also key for context.

👥 Team Culture & Values

Operations Values:

• Generous Leadership: A collaborative spirit where team members support each other's growth and celebrate collective achievements. This translates to open feedback, knowledge sharing, and mentorship within the design team.

• Curiosity: A commitment to continuous learning, staying updated with industry trends (especially in AdTech and UX/UI design), and exploring new tools and methodologies.

• Team Effort: Emphasis on collaboration and cooperation across Product, Engineering, and Design to achieve common goals and build a cohesive "smart company."

• Go Further: A drive for excellence, setting high standards for oneself and the team, and consistently striving for innovative solutions.

• Strong Ownership: Taking full responsibility for one's role, projects, and contributions, demonstrating accountability and a proactive approach.

• Passion & Respect: A genuine enthusiasm for the work and the industry, coupled with respect for colleagues, customers, and the product itself.

• Do Good and Do Well: A belief that impactful work that benefits customers and the business is achievable and is the ultimate goal.

Collaboration Style:

• Cross-functional Integration: Designers are expected to work seamlessly with Product Managers to define requirements and with Engineers to ensure accurate implementation, fostering a shared understanding of product goals.

• Process Review & Feedback: An open culture for design critiques, user feedback sessions, and iterative improvement based on constructive input from various stakeholders.

• Knowledge Sharing: Encouraging the sharing of design best practices, learnings from user research, and insights from analytics to elevate the entire team's capabilities.

📝 Enhancement Note: The company culture values a blend of individual ownership and strong collaborative teamwork. The emphasis on "generous leadership" and "team effort" suggests an environment where designers are encouraged to mentor and support their peers while also driving their own initiatives forward.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for Complexity: Translating intricate programmatic advertising workflows and data-rich interfaces into intuitive and user-friendly experiences.

• Scaling a Design System: Building and maintaining a robust, scalable design system that serves multiple products and development teams effectively, ensuring consistency and efficiency.

• Balancing Stakeholder Needs: Managing competing priorities and requirements from Product Management, Engineering, Sales, and Marketing teams while advocating for user-centered design.

• Rapid Industry Evolution: Keeping pace with the fast-changing AdTech landscape, including new technologies, privacy regulations, and evolving advertiser needs.

Learning & Development Opportunities:

• Operations Skill Advancement: Deepening expertise in B2B SaaS product design, AdTech product specifics, and advanced UX/UI methodologies.

• Design System Leadership: Opportunities to lead the strategy and development of the design system, potentially mentoring other designers on its use and evolution.

• Industry Exposure: Potential to attend AdTech and UX conferences, participate in webinars, and gain exposure to cutting-edge practices and technologies.

• Mentorship Programs: Access to mentorship from senior design or product leaders within mediasmart or the broader Affle Group to guide career development.

📝 Enhancement Note: The primary challenges revolve around complexity management and design system scalability within a dynamic AdTech environment. Growth opportunities are geared towards specializing in complex B2B design and potentially taking on leadership roles within design operations.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you designed a complex data-heavy dashboard or reporting interface. What were the key challenges, and how did you address them?" (Focus on process, data visualization, and user efficiency.)

• "How do you approach building or evolving a design system? Walk us through your process, including how you ensure adoption and consistency across teams." (Highlight Figma proficiency, component strategy, and collaboration.)

Company & Culture Questions:

• "Based on your understanding of mediasmart and the AdTech industry, what do you see as the biggest UX challenges for our platform?" (Demonstrate industry research and strategic thinking.)

• "How do you embody our company value of 'Strong ownership' in your design work?" (Relate personal work ethic to company values.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each case study, clearly define the problem, your role, your process, the solutions you designed, and the impact of your work. Use a storytelling approach.

• Focus on "Why": Explain the rationale behind your design decisions, linking them back to user needs, business goals, and design principles.

• Showcase Figma Mastery: Be prepared to discuss your Figma workflow, including how you leverage components, Auto Layout, and design system features to ensure efficiency and scalability.

• Quantify Outcomes: Present metrics or qualitative feedback that demonstrate the success of your designs. If direct metrics are unavailable, explain how you would measure success.

• Engage Your Audience: Make it a conversation. Ask clarifying questions and be open to feedback during the presentation.

📝 Enhancement Note: Interview preparation should focus on articulating experience with complex B2B design, design systems, and collaboration within agile teams. Candidates should be ready to discuss their process, rationale, and quantifiable impact, using specific examples from their portfolio.

📌 Application Steps

To apply for this Product Designer position:

• Submit your application through the provided link on the Greenhouse job board.

• Portfolio Customization: Carefully select 2-3 case studies from your portfolio that best align with the requirements of this role, emphasizing complex B2B SaaS applications, data-heavy interfaces, and design system contributions. Tailor your portfolio presentation to highlight your proficiency in Figma and your understanding of the AdTech domain.

• Resume Optimization: Ensure your resume clearly highlights your 3-5 years of experience, advanced Figma skills, design system development experience, and collaborative work within agile product teams. Use keywords from the job description to enhance ATS compatibility.

• Interview Preparation: Practice articulating your design process and decision-making rationale. Prepare to discuss your case studies in detail and anticipate questions about handling complexity, scaling design systems, and collaborating with engineering.

• Company Research: Thoroughly research mediasmart, its products, and its position within the AdTech industry. Understand their company values and tailor your responses to demonstrate cultural fit and a genuine interest in their mission.

⚠️ 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.