Senior Product Designer

📍 Job Overview

Job Title: Senior Product Designer

Company: Tendios

Location: Spain (Remote)

Job Type: Full-Time

Category: Product Design / SaaS / AI-First Product Development

Date Posted: 2026-09-08

Experience Level: 5-10 Years

Remote Status: Fully Remote (within Spain)

🚀 Role Summary

• Design end-to-end product experiences for Tendios' AI-powered SaaS platform, focusing on both Tendios Bid (for companies) and Tendios Create (for public entities).

• Develop innovative AI-first interaction patterns, including conversational interfaces, AI-assisted content generation and editing, and mechanisms for user control and trust in AI outputs.

• Drive product discovery through user research, usability testing, data analysis, and close collaboration with Product Managers and Engineering.

• Maintain and evolve the company's design system to ensure consistency and accelerate delivery across applications.

• Utilize AI tools within your personal workflow to enhance exploration, prototyping, and production efficiency.

📝 Enhancement Note: This role is explicitly for a "Senior Product Designer" with a strong emphasis on "AI-First" product development within the SaaS domain. The company's mission to revolutionize public procurement with AI is central to the role's focus. The remote work arrangement is specific to Spain, indicating a need for candidates comfortable with this geographical constraint.

📈 Primary Responsibilities

• Own the entire product experience lifecycle, from initial problem discovery and definition through to polished UI design and post-launch monitoring in production.

• Collaborate daily within a Product team, working hand-in-hand with Product Managers and Engineering to conceptualize and deliver features.

• Design intuitive and effective user interfaces, wireframes, interactive prototypes, and high-fidelity UI for both Tendios Bid and Tendios Create.

• Conceptualize and design interaction patterns specifically for AI-driven functionalities, addressing challenges like probabilistic outcomes, latency, error handling, user trust, and human oversight.

• Translate complex business problems and user needs into clear, usable, and actionable design solutions.

• Actively participate in product discovery phases, including conducting user interviews, performing usability tests, analyzing product data, and contributing to prioritization discussions.

• Contribute to the maintenance and expansion of the design system, ensuring visual and interactive consistency across all product touchpoints and accelerating development velocity.

• Work closely with the Engineering team to ensure high-quality implementation of designs, providing necessary specifications and support.

• Integrate AI tools into your personal design workflow to expedite exploration, prototyping, and the creation of production-ready assets.

📝 Enhancement Note: The responsibilities highlight a hands-on, senior-level contribution to product development, emphasizing ownership and a deep involvement in the entire design process. The specific mention of "AI-First" design patterns is critical and requires candidates to possess experience or a strong understanding of designing with AI capabilities at the core.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, Human-Computer Interaction, 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: A minimum of 5-10 years of demonstrable experience in product design, with a significant portion focused on modern SaaS products.

Required Skills:

• Demonstrable experience designing modern SaaS products, supported by a robust portfolio showcasing real-world cases, design decisions, and measurable impact.

• Proven experience designing products with a strong AI component or a clear understanding of the unique design challenges introduced by AI (e.g., probabilism, latency, errors, user trust, human control).

• Fluency in utilizing AI tools in daily design workflows (e.g., AI-assisted design/coding tools, AI-powered generation, AI-enhanced prototyping) and a proactive desire to push the boundaries of AI-First application design.

• Mastery of modern product design tools, particularly Figma and its ecosystem.

• Solid understanding and application of interaction design principles, visual hierarchy, accessibility standards, and design systems.

• Professional English proficiency (essential for documentation, tools, and collaboration).

• High degree of autonomy, clear communication skills, and the ability to articulate and defend design decisions with data-driven arguments.

• Experience working effectively within a cross-functional Product team, collaborating closely with Product Managers and Engineers. Preferred Skills:

• Familiarity with product analytics tools such as Amplitude, Mixpanel, or similar.

• Experience designing for B2B or complex vertical markets (e.g., Legaltech, Govtech, Fintech, professional tools).

• Proficiency in code-based prototyping or the ability to read/understand front-end code (e.g., Vue, React, Tailwind).

• Hands-on experience designing and validating generative AI patterns in a production environment.

• Prior experience in startup environments or fast-paced product development settings.

📝 Enhancement Note: The "Required Skills" section is heavily weighted towards practical experience and a specific understanding of AI in design. The emphasis on a portfolio that demonstrates impact and decision-making, rather than just aesthetics, is a critical differentiator for this role. Professional English is a non-negotiable requirement.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A portfolio showcasing 2-3 in-depth case studies that clearly articulate your design process, the rationale behind your key decisions, and the tangible impact achieved on users and the business.

• Evidence of designing and shipping modern SaaS products, with a focus on user experience and problem-solving.

• Specific examples demonstrating your experience with AI-driven features or AI-first product design, highlighting how you addressed the unique challenges of these technologies.

• Visual documentation of wireframes, user flows, interactive prototypes, and high-fidelity UI designs.

• Demonstrations of your ability to maintain and evolve design systems, including examples of pattern creation and consistency enforcement. Process Documentation:

• Case studies should detail your involvement in product discovery, including user research methodologies (interviews, usability testing) and data analysis.

• Showcase your approach to translating business needs and user requirements into functional design solutions.

• Illustrate your collaboration with Product Managers and Engineering, including handoff processes and ensuring implementation quality.

• Detail your experience in iterating on designs based on feedback and data, demonstrating a continuous improvement mindset.

📝 Enhancement Note: The portfolio is paramount for this role. It must go beyond superficial visuals to demonstrate a strategic thought process, problem-solving capabilities, and a deep understanding of how design impacts business outcomes, especially in the context of AI.

💵 Compensation & Benefits

Salary Range: Given the Senior Product Designer title, 5-10 years of experience, and the location in Spain (with remote work from anywhere in Spain), a competitive salary range would typically be between €45,000 - €65,000 annually. This estimate is based on industry benchmarks for experienced product designers in Spain, adjusted for the remote nature of the role and the specific demands of an AI-first SaaS startup.

Benefits:

• Indefinite Contract (Contrato indefinido): Offers job security and long-term commitment.

• Competitive Salary with Performance-Based Bonuses: Direct link between individual/company performance and compensation.

• Professional Growth Opportunities: Access to resources and pathways for career advancement within the company.

• Team Events: Regular company-sponsored activities to foster team cohesion and culture.

• Professional Development and Training: Opportunities for continuous learning, skill enhancement, and staying current with design and AI trends.

Working Hours: Typically a 40-hour work week, with flexibility offered due to the remote nature and startup environment. Specific core hours may be established for team collaboration, but a degree of autonomy in scheduling is expected.

📝 Enhancement Note: Salary is estimated based on typical Senior Product Designer compensation in Spain for a tech startup, factoring in the specialized AI and SaaS focus. The benefits package is standard for a full-time role in a growing tech company.

🎯 Team & Company Context

🏢 Company Culture

Industry: Software as a Service (SaaS) / GovTech / AI / Procurement Technology. Tendios operates at the intersection of AI and public sector procurement, aiming to modernize and streamline how businesses and public entities engage in tenders. This positions them in a niche but growing market with significant potential for disruption.

Company Size: A fast-growing startup founded in 2023. This implies a dynamic, agile, and potentially lean team structure where individual contributions have a high visibility and impact. Roles are likely broad, and there's an opportunity to shape processes and culture.

Founded: 2023. As a young company, Tendios is likely in a phase of rapid scaling, product development, and market penetration. The culture will be entrepreneurial, fast-paced, and focused on innovation.

Team Structure:

• The Senior Product Designer will be part of the Product Team, working closely with Product Managers and Engineers. This suggests a flat or matrixed structure common in startups, prioritizing cross-functional collaboration.

• The role requires high autonomy and the ability to defend design decisions, indicating a culture that values independent thinking and strong rationale.

• Collaboration is expected to be direct and lean, without unnecessary layers, enabling quick iteration and decision-making. Methodology:

• AI-First Approach: This is a core tenet of Tendios. AI is not an add-on but the central technology driving their products. This implies a company culture that embraces AI, encourages its use in internal processes, and expects employees to be at the forefront of AI-driven innovation.

• Data-Driven Decisions: The emphasis on analyzing product data and conducting usability tests points to a methodology grounded in user feedback and empirical evidence.

• Agile Development: The fast-paced, iterative nature of a startup, coupled with close collaboration between Product and Engineering, suggests an agile development methodology.

Company Website: https://tendios.com (inferred from domain_derived)

📝 Enhancement Note: The company culture is defined by its startup nature, its AI-centric mission, and its focus on the public procurement sector. Candidates should be comfortable with rapid change, high autonomy, and the integration of AI into all aspects of work.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior individual contributor role. It signifies a level of expertise where the designer is expected to lead design initiatives, mentor junior team members (if any), and operate with significant independence. The focus is on end-to-end ownership and strategic design contributions rather than management.

Reporting Structure: The role reports into the Product team, likely working closely with a Head of Product or Product Lead. Direct collaboration with Engineering teams is also a key aspect, fostering a unified product development environment.

Operations Impact: The Senior Product Designer will have a direct and visible impact on the core functionality and user experience of Tendios' SaaS products. By designing effective AI-first solutions, they will directly contribute to the company's mission of helping businesses win more tenders and public entities manage them more efficiently. This translates to tangible revenue impact and market differentiation for Tendios.

Growth Opportunities:

• Deep Specialization in AI-First Design: Opportunity to become a leading expert in designing complex AI-driven applications, a highly in-demand skill.

• Influence Product Strategy: As a senior member, contribute significantly to the product roadmap and strategic direction through user insights and design innovation.

• Leadership Potential: While not a management role initially, the experience gained can pave the way for future leadership positions within product design or product management.

• Startup Environment Growth: Potential to grow with the company as it scales, taking on more responsibility and shaping the design function.

• Skill Development: Continuous learning opportunities in AI, SaaS product design, and potentially related technical areas.

📝 Enhancement Note: This role offers significant growth potential for a designer passionate about AI and product innovation in a fast-paced startup environment. The impact is direct, and the specialization in AI-first design is a strategic career advantage.

🌐 Work Environment

Office Type: Hybrid real, with a base in Barcelona. This means the company has a physical presence, but the role offers significant flexibility to work remotely from anywhere else in Spain. This blend allows for in-person collaboration when needed while prioritizing remote work.

Office Location(s): Barcelona, Spain. This serves as the primary hub for any in-person team events or strategic meetings.

Workspace Context:

• Collaborative Environment: Despite the remote flexibility, the culture emphasizes close collaboration with Product Managers and Engineering, suggesting regular virtual meetings, shared digital workspaces, and a focus on team communication.

• Operations Tools & Technology: Access to industry-standard design tools like Figma, potentially AI design assistants, and collaboration platforms. The company itself is a SaaS platform, so familiarity with web-based applications is key.

• Team Interaction: Opportunities for interaction through virtual stand-ups, design critiques, brainstorming sessions, and scheduled team events, even while working remotely.

Work Schedule: While a standard 40-hour week is implied, the hybrid and startup nature suggests flexibility. Core hours may be established for essential team synchronization, but individual work can likely be scheduled around these, accommodating remote work needs and personal productivity peaks.

📝 Enhancement Note: The hybrid model is a key feature, offering flexibility for candidates based in Spain. The emphasis on collaboration, even remotely, means candidates should be proactive communicators and comfortable with virtual teamwork.

📄 Application & Portfolio Review Process

Interview Process:

• Phase 1: Portfolio and CV Review: Initial screening to assess experience, skills, and alignment with the role's requirements, especially the AI and SaaS focus.

• Phase 2: Initial Interview: Focus on cultural fit, motivation for joining Tendios, and a high-level discussion of relevant experience and design philosophy.

• Phase 3: Product & Engineering Interview: A deeper dive into design skills, problem-solving abilities, and technical understanding. This may involve a design challenge or a detailed walkthrough of portfolio case studies with the Product and Engineering teams.

• Phase 4: Offer: Extension of a job offer to the selected candidate.

Portfolio Review Tips:

• Curate Strategically: Select 2-3 strong case studies that best represent your experience with modern SaaS products, AI-first design challenges, and your end-to-end design process.

• Showcase Process, Not Just Pixels: Clearly articulate the problem, your research and discovery methods, design decisions, iterations, and the resulting impact (quantifiable metrics are highly valuable).

• Highlight AI Expertise: Specifically detail your approach to designing for AI, including how you handled uncertainty, user trust, and control.

• Demonstrate Tool Proficiency: Showcase your skills with Figma and any AI tools you've integrated into your workflow.

• Tell a Story: Present your work in a narrative format that guides the reviewer through your thought process and problem-solving journey.

Challenge Preparation:

• Anticipate AI-Focused Problems: Be prepared for design challenges that involve AI elements, such as designing a conversational interface, an AI-assisted content creation tool, or a system for managing AI output.

• Focus on User Needs & Business Goals: Frame your solutions around solving real user problems and driving business value for Tendios.

• Articulate Your Rationale: Be ready to clearly explain why you made certain design choices, referencing user data, design principles, and your understanding of AI limitations and capabilities.

• Demonstrate Collaboration: If a collaborative exercise is involved, show your ability to work effectively with others, listen to feedback, and integrate different perspectives.

📝 Enhancement Note: The application process emphasizes the portfolio as a primary assessment tool. Candidates must prepare thoroughly, showcasing not just design skills but also strategic thinking, problem-solving in an AI context, and a clear understanding of business impact.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core tool for UI design, wireframing, prototyping, and design system management. Expertise in Figma and its collaborative features is essential.

• AI Design Assistants/Tools: The role encourages using AI in the workflow. This could include tools for AI-powered ideation, content generation (text or image), code generation assistance, or AI-enhanced prototyping. Specific tools are not listed, but a willingness to explore and adopt them is key.

Analytics & Reporting:

• Amplitude / Mixpanel (Preferred): Familiarity with product analytics platforms is a plus for data-driven decision-making, understanding user behavior, and measuring design impact.

CRM & Automation:

• While not directly a design tool, understanding the SaaS product context means awareness of how design integrates with broader CRM and automation workflows that drive business processes.

📝 Enhancement Note: Figma is the mandatory design tool. The emphasis on AI tools means candidates should be open to and likely already experimenting with AI-powered design technologies. Familiarity with analytics tools is a strong advantage for demonstrating data-informed design.

👥 Team Culture & Values

Operations Values:

• AI-First Mindset: A fundamental belief in leveraging AI as the core of product development and internal processes. This means embracing AI's potential while understanding its limitations and designing for them.

• User-Centricity & Problem Solving: A commitment to deeply understanding user needs and translating them into effective, usable solutions that solve real problems in public procurement.

• Collaboration & Transparency: Open communication and close teamwork across Product, Engineering, and Design to ensure shared understanding and efficient execution.

• Agility & Iteration: A culture that embraces rapid iteration, learning from feedback, and adapting quickly to market changes and technological advancements.

• Impact & Ownership: A focus on delivering tangible results and taking full ownership of one's work, driving significant impact for the company and its users.

Collaboration Style:

• Integrated Product Team: Designers work seamlessly within the Product team, fostering a close relationship with Product Managers and Engineers.

• Data-Informed Discussions: Design decisions are supported by user research, product analytics, and reasoned arguments, encouraging constructive debate.

• Open Feedback Culture: A willingness to give and receive feedback openly to continuously improve designs and processes.

• Shared Ownership of Product Success: The entire team is invested in the success of the product, working collaboratively towards common goals.

📝 Enhancement Note: The "AI-First" value is paramount and should be a guiding principle for any candidate. The culture promotes collaboration, data-driven decisions, and a proactive approach to problem-solving within a fast-moving startup environment.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for AI Uncertainty: Effectively designing interfaces where AI outputs are probabilistic, potentially contain errors, or require human oversight. This involves managing user expectations, building trust, and providing robust control mechanisms.

• Rapidly Evolving AI Landscape: Keeping pace with the fast-changing advancements in AI technology and integrating new capabilities into product design effectively.

• Balancing Innovation with Usability: Ensuring that cutting-edge AI features remain accessible and usable for a diverse range of users, including those less familiar with AI.

• Scaling Design Systems for AI Components: Adapting and expanding design systems to accommodate new UI patterns and interactions specific to AI-driven functionalities.

• Navigating Startup Dynamics: Adapting to the inherent ambiguity, fast pace, and evolving priorities common in a growing startup.

Learning & Development Opportunities:

• Mastery in AI-First Product Design: Become a recognized expert in a cutting-edge field with high market demand.

• Deep Dive into GovTech/Procurement: Gain specialized knowledge in a complex and impactful industry vertical.

• Exposure to Cutting-Edge AI Technologies: Work with AI models and tools that are at the forefront of innovation.

• Mentorship & Leadership: Opportunities to mentor junior designers and potentially lead design initiatives as the team grows.

• Professional Training: Access to courses, conferences, and workshops focused on product design, AI, and related technologies.

📝 Enhancement Note: The challenges are directly tied to the innovative nature of the role and the company's AI focus. Growth opportunities are significant for those looking to specialize in a high-demand, future-oriented field.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you designed for a product with a significant AI component. What were the unique challenges, and how did you address them?" (Focus on your process for handling AI uncertainty, user trust, and control).

• "How do you approach translating complex user needs and business requirements into intuitive product experiences, especially when AI is involved?" (Highlight your problem-solving methodology and how you simplify complexity).

• "Walk us through a case study from your portfolio where you had to defend a significant design decision with data or strong rationale. How did you collaborate with stakeholders?" (Prepare to showcase your communication, argumentation, and collaboration skills). Company & Culture Questions:

• "Why are you interested in Tendios and our mission to revolutionize public procurement with AI?" (Research the company, understand the market, and align your passion with their mission).

• "How do you see yourself contributing to an AI-First culture? What role does design play in that?" (Show your understanding of AI's impact on design and your proactive approach to using AI tools).

• "Describe your ideal collaboration model with Product Managers and Engineers. How do you ensure alignment and quality in a hybrid/remote setting?" (Emphasize your teamwork, communication, and ability to work effectively in a cross-functional team). Portfolio Presentation Strategy:

• Structure Your Narrative: For each case study, clearly define the problem, your role, your process, key decisions, challenges, solutions, and measurable outcomes.

• Emphasize AI Integration: Specifically call out how AI was a core part of the problem or solution, and how you designed for its unique characteristics.

• Show, Don't Just Tell: Use visuals (wireframes, prototypes, final UI) to illustrate your points, but always tie them back to your strategic thinking and user impact.

• Quantify Impact: Wherever possible, present metrics (e.g., conversion rates, engagement, task completion time, user satisfaction scores) that demonstrate the success of your designs.

• Be Ready for Deep Dives: Anticipate detailed questions about your choices, methodologies, and the trade-offs you made.

📝 Enhancement Note: Interview preparation should focus on demonstrating expertise in AI-first design, strong problem-solving skills, and a cultural fit with a fast-paced, innovative startup. The portfolio presentation is critical for showcasing these capabilities.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your application through the Tendios Teamtailor portal.

• Portfolio Customization: Tailor your portfolio to highlight 2-3 of your most relevant case studies that showcase your experience with modern SaaS products, AI-first design, and your end-to-end product design process. Ensure these examples demonstrate tangible impact.

• Resume Optimization: Update your resume to clearly articulate your years of experience, specific skills in Figma, AI design, SaaS product development, and any relevant industry experience (GovTech, B2B). Use keywords from the job description.

• Interview Preparation: Practice articulating your design process, defending your decisions with data, and discussing your experience with AI in design. Prepare to walk through your portfolio case studies confidently.

• Company Research: Thoroughly research Tendios, its mission, its products (Tendios Bid and Tendios Create), and its position in the market. Understand the public procurement landscape and how AI can transform it.

⚠️ 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.