Senior Product Experience & UX Engineer

📍 Job Overview

Job Title: Senior Product Experience & UX Engineer

Company: knowmad mood

Location: Madrid, Community of Madrid, Spain

Job Type: Full-Time

Category: Product Experience & UX Engineering

Date Posted: 2026-04-21T14:50:10

Experience Level: 5-10 Years

Remote Status: 100% Remote (within Spain)

🚀 Role Summary

• Drive the definition, delivery, and evolution of high-quality user experiences from initial product conception through to production.

• Translate complex user needs and product intentions into actionable UX decisions and robust, high-quality frontend implementations.

• Serve as the primary UX and design authority in environments with low maturity, balancing direct execution with strategic, long-term vision for product experience.

• Foster deep collaboration with Product Owners and stakeholders, actively participating in discovery phases, problem definition, and critical experience decision-making.

• Develop and advocate for shared UX principles, reusable UI patterns, and comprehensive design systems that ensure consistency across multiple product teams.

📝 Enhancement Note: This role is positioned as a Senior Product Experience & UX Engineer, indicating a need for significant autonomy, strategic thinking, and the ability to influence without direct authority. The emphasis on "low maturity environments" and "coaching" suggests a strong mentorship component, where the individual will not only execute but also build UX capabilities within engineering teams. The requirement for 5+ years of experience in digital products and frontend development, combined with direct UX application, points to a highly experienced individual capable of bridging the gap between design and engineering.

📈 Primary Responsibilities

• Lead the end-to-end definition and iterative enhancement of user experiences for digital products, ensuring a high standard of quality from ideation to deployment.

• Translate user research insights and product strategy into concrete UX solutions, design specifications, and well-structured frontend code.

• Act as the lead UX/design resource in nascent product environments, demonstrating practical execution alongside strategic foresight for scalable design solutions.

• Engage in close collaboration with Product Owners and key stakeholders to conduct user research, define critical product challenges, and make informed experience-related decisions.

• Architect and maintain evolving design systems, shared UI patterns, and UX principles that promote consistency and efficiency across diverse product development teams.

• Proactively identify and mitigate potential experience inconsistencies arising from multi-team development environments by implementing systemic solutions.

• Empower and guide feature teams to progressively integrate UX ownership into their day-to-day workflows, fostering a culture of shared responsibility for user experience.

• Influence team behaviors and decision-making through coaching, pair programming, and by setting practical examples of excellent UX and frontend development.

• Strategically balance user usability requirements, business objectives, and technical constraints within complex and often ambiguous project landscapes.

📝 Enhancement Note: The responsibilities highlight a blend of hands-on execution and strategic leadership. The emphasis on "low maturity environments," "coaching," and "influencing without formal authority" indicates that success will depend not only on technical and design skills but also on strong interpersonal and leadership abilities. The role requires someone who can build processes and standards from the ground up while also delivering tangible product improvements.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong understanding of Human-Computer Interaction (HCI), User Experience Design, Computer Science, or a related field is expected, demonstrated through experience.

Experience: A minimum of 5 years of progressive experience in digital product development, with a significant focus on user-centric design and hands-on frontend implementation. Experience acting as the primary UX resource in organizations with low UX maturity is critical.

Required Skills:

• 5+ years of experience in digital products with a strong user-orientation, within engineering-led teams.

• Proven, hands-on experience in frontend development, successfully delivering complex interfaces into production environments.

• Minimum 5 years of applying UX principles and product experience directly to product delivery.

• Experience serving as the principal or first UX capacity in organizations with low maturity or in early-stage development.

• Demonstrated experience collaborating effectively with Product Owners and stakeholders in product-centric environments.

• Active participation in the definition or evolution of design systems, shared UI patterns, or common UX principles.

• Experience working within scaled or multi-team agile environments (e.g., LeSS).

• Senior-level capability to make end-to-end UX decisions in complex, ill-defined contexts.

• High tolerance for ambiguity, coupled with a strong enablement and coaching mindset.

• Native or near-native fluency in English (spoken and written) for daily communication.

Preferred Skills:

• Experience with specific JavaScript frameworks (e.g., React, Vue, Angular) commonly used for complex interfaces.

• Familiarity with user research methodologies and tools (e.g., Usability Testing, Persona development, Journey Mapping).

• Knowledge of accessibility standards (WCAG) and best practices.

• Experience with version control systems, particularly Git.

• Understanding of CI/CD pipelines and their impact on frontend deployment.

• Experience with component-based architecture and design tokens.

📝 Enhancement Note: The requirements emphasize a unique blend of deep UX expertise and strong frontend development capabilities. The "5+ years" is applied across both "digital products" and "applying UX principles," suggesting a need for extensive, practical experience. The explicit mention of "low maturity organizations" and "coaching" underscores the importance of leadership and mentorship skills alongside technical proficiency. Full fluency in English is a non-negotiable requirement due to the international nature of the role.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A curated portfolio showcasing end-to-end product experience and UX design projects, with a clear emphasis on user-centric problem-solving.

• Demonstrations of complex frontend implementations, including code samples or links to live products where applicable, highlighting the technical execution of UX designs.

• Case studies detailing your role and impact in defining or evolving design systems, UI patterns, or shared UX principles.

• Examples of work within ambiguous or low-maturity environments, illustrating your ability to define structure, processes, and deliver results.

Process Documentation:

• Showcase your ability to document and articulate UX processes, from discovery and user research through to design, prototyping, and handoff to development.

• Provide examples of how you've established or improved design systems, component libraries, or style guides to ensure consistency and scalability.

• Illustrate your approach to identifying and addressing UX inconsistencies across multiple teams or products.

• Detail your methods for coaching and enabling engineering teams to adopt and integrate UX best practices into their workflows.

📝 Enhancement Note: For a role at this seniority, a portfolio is paramount. It should not only display visual design and UX outputs but also demonstrate the candidate's ability to influence product strategy, implement scalable design systems, and effectively translate complex requirements into tangible frontend solutions. The emphasis on "low maturity" and "coaching" means the portfolio should ideally include examples of process creation and team enablement.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior UX Engineers/Product Experience specialists in Madrid, Spain, with 5-10 years of experience and fully remote capabilities, the estimated annual salary range is €50,000 - €70,000. This range accounts for the senior-level responsibilities, required dual expertise in UX and frontend, and the cost of living in Spain.

Benefits:

• Indefinite Contract (Contrato Indefinido)

• 100% Remote Work within Spain

• Internal Training Programs

• Access to Certifications

• Flexible Compensation Plan (Plan de retribución flexible)

• Health Insurance

• Transportation Allowance

• Childcare Tickets

• Restaurant Tickets

• Referral Bonus Program ("Plan amigo")

• Company Events, Meetups, Tech Days, and Talks

• 26 Days of Leave (including 22 vacation days, 2 free days, and default holidays on Dec 24th & 31st)

Working Hours: Flexible 40-hour work week, Monday to Friday.

📝 Enhancement Note: The salary estimate is derived from analyzing similar Senior UX/Frontend roles in the Spanish market, considering the remote nature and the specific requirements of the position. The listed benefits are comprehensive and align with typical offerings for full-time, permanent employees in the tech sector in Spain, with specific additions like flexible compensation options and generous leave.

🎯 Team & Company Context

🏢 Company Culture

Industry: Digital Transformation & Technology Consulting. knowmad mood operates at the intersection of technology, innovation, and sustainable development, aiming to create real change for its clients through cutting-edge solutions.

Company Size: Over 3,000 employees. This signifies a large, established organization with a broad reach, offering stability and diverse project opportunities. For operations professionals, this means access to structured processes, a variety of cross-functional teams, and potential for career advancement within a significant enterprise.

Founded: The founding date is not explicitly stated, but the company's description suggests a focus on modern digital transformation, implying a relatively contemporary establishment or a significant evolution towards current digital capabilities.

Team Structure:

• The Product Experience & UX Engineering team is likely integrated within larger engineering or product development departments. As a Senior member, you'll be a key contributor, potentially leading initiatives and mentoring junior members.

• Reporting structure will likely involve reporting to a Head of Product, Engineering Manager, or a similar senior leadership role within the product vertical.

Methodology:

• Data-driven decision-making is implied, with a focus on user needs and product performance metrics.

• Agile methodologies are standard, with specific mention of LeSS (Large-Scale Scrum) suggesting experience with scaled agile frameworks.

• Emphasis on innovation, continuous improvement, and sustainable development principles guides their approach.

Company Website: https://www.knowmadmood.com/

📝 Enhancement Note: The company culture is described as collaborative, innovative, and purpose-driven, with a strong emphasis on talent development and employee well-being. The large company size suggests a structured environment with ample resources, while the "digital transformation" focus indicates a dynamic and forward-thinking workplace. The mention of LeSS points towards a sophisticated approach to managing complex, multi-team product development.

📈 Career & Growth Analysis

Operations Career Level: This role is designated as "Senior," indicating a high level of autonomy, expertise, and responsibility. It requires an individual capable of leading complex projects, mentoring others, and influencing strategic decisions without direct authority. This level is typically a stepping stone to Principal Engineer, Architect, or Lead roles within product development.

Reporting Structure: You will likely report to a senior leader such as a Head of Product, Director of Engineering, or a similar role that oversees product development strategy and execution. This structure allows for strategic alignment and direct impact on product direction.

Operations Impact: The Senior Product Experience & UX Engineer plays a crucial role in shaping the success of digital products by ensuring they are user-friendly, valuable, and technically sound. Your work will directly influence user adoption, customer satisfaction, and ultimately, the business's revenue and market position through enhanced product performance and user engagement.

Growth Opportunities:

• Skill Specialization: Deepen expertise in advanced UX research, interaction design, frontend architecture, or design system management.

• Leadership Development: Transition into roles with formal leadership responsibilities, such as Tech Lead, UX Lead, or Product Lead, managing teams and strategic initiatives.

• Cross-functional Mobility: Explore opportunities within product management, broader engineering leadership, or specialized innovation teams within knowmad mood.

• Industry Influence: Contribute to internal knowledge sharing, external tech talks, and potentially open-source projects related to design systems or frontend patterns.

📝 Enhancement Note: The "Senior" designation implies a significant impact on product strategy and team enablement. Growth opportunities are likely tied to both technical depth and leadership potential, allowing for specialization or a move into management. The company's emphasis on training and certifications further supports continuous development.

🌐 Work Environment

Office Type: While the role is 100% remote within Spain, the company does offer opportunities to attend meetings in Barcelona twice a year. This suggests a hybrid-friendly culture with a physical presence for key strategic gatherings.

Office Location(s): The company has a presence in Madrid (Plaza de la Independencia) and Barcelona, but the role is fully remote within Spain, offering flexibility to work from anywhere within the country.

Workspace Context:

• Collaborative Environment: Expect a highly collaborative atmosphere, facilitated by digital tools, where seamless communication and knowledge sharing are prioritized across international and multicultural teams.

• Operations Tools & Technology: Access to modern development tools, collaboration platforms, and potentially a well-defined design system will be available to support efficient workflow and high-quality output.

• Team Interaction: Regular interaction with product owners, fellow engineers, and stakeholders will occur through virtual meetings, asynchronous communication channels, and planned in-person gatherings.

Work Schedule: The flexible 40-hour work week (Monday-Friday) allows operations professionals to manage their time effectively, balancing deep work sessions for complex problem-solving with collaborative activities and personal commitments.

📝 Enhancement Note: The 100% remote aspect within Spain provides significant flexibility. The occasional travel to Barcelona for meetings indicates a commitment to in-person collaboration for strategic alignment and team building, which is common for senior roles in distributed organizations.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your application, resume, and portfolio to assess alignment with the core requirements.

• Technical & UX Assessment: Likely includes a discussion of your experience, a deep dive into your portfolio, and potentially a technical challenge or case study focusing on product experience and frontend implementation. This may involve translating a user need into a design and a frontend approach.

• Stakeholder/Hiring Manager Interview: An evaluation of your strategic thinking, problem-solving skills, collaboration style, and fit with the team's culture and methodologies (e.g., Agile, LeSS).

• Team/Culture Fit Interview: Interaction with potential team members to assess cultural alignment, coaching abilities, and tolerance for ambiguity.

Portfolio Review Tips:

• Curate Selectively: Focus on 2-3 of your strongest projects that best demonstrate your end-to-end capabilities in UX design, product experience, and frontend implementation.

• Tell a Story: For each project, clearly articulate the problem, your role, the process you followed, the decisions you made (and why), the challenges you overcame, and the tangible results or impact achieved.

• Highlight UX & Frontend Synergy: Showcase how your UX decisions informed your frontend development, and vice-versa. Provide examples of complex interfaces you've built and how they address specific user needs.

• Demonstrate System Thinking: Include examples of your involvement in design systems, pattern libraries, or efforts to ensure consistency across products.

• Quantify Impact: Where possible, use metrics to demonstrate the success of your solutions (e.g., improved conversion rates, reduced task completion time, increased user satisfaction).

Challenge Preparation:

• Be prepared to discuss how you would approach defining UX for a new feature or product from scratch in a low-maturity environment.

• Practice articulating your design and technical decisions clearly, explaining the trade-offs considered.

• Prepare examples of how you have coached or mentored other team members on UX best practices.

• Familiarize yourself with knowmad mood's company values and their approach to digital transformation.

📝 Enhancement Note: The interview process will likely be rigorous, assessing both technical depth and strategic/leadership capabilities. A well-prepared portfolio that clearly articulates the candidate's impact and problem-solving approach will be crucial for success. The emphasis on "low maturity" and "coaching" suggests interviewers will probe for evidence of initiative, adaptability, and mentoring skills.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend Development: Expertise in modern JavaScript frameworks (e.g., React, Vue, Angular) is essential for delivering complex interfaces. Experience with HTML5, CSS3, and preprocessors (Sass/LESS) is also critical.

• UX/UI Design Tools: Proficiency with industry-standard design and prototyping tools such as Figma, Sketch, Adobe XD, or similar.

• Version Control: Git is standard for collaborative development, likely integrated with platforms like GitHub, GitLab, or Bitbucket.

• Agile Project Management: Familiarity with tools like Jira, Confluence, or Trello for managing backlogs, sprints, and documentation within Agile/LeSS frameworks.

Analytics & Reporting:

• Product Analytics: Experience with tools like Google Analytics, Amplitude, Mixpanel, or similar to track user behavior, feature adoption, and product performance.

• User Feedback Tools: Familiarity with platforms for collecting and analyzing user feedback (e.g., Hotjar, UserTesting.com).

CRM & Automation:

• While not a primary focus for this role, an understanding of how UX and frontend development integrate with CRM systems (e.g., Salesforce) and marketing automation platforms can be beneficial for a holistic product view.

• Design System Management: Tools or processes for managing and distributing design system components and guidelines.

📝 Enhancement Note: The role requires a strong command of core frontend technologies and UX design tools. The emphasis on "design systems" and "shared UI patterns" suggests that candidates proficient in managing and contributing to such systems will be highly valued. Understanding of agile workflows and product analytics tools is also expected.

👥 Team Culture & Values

Operations Values:

• Collaboration: A strong emphasis on teamwork and cross-functional cooperation to achieve shared goals. Expect active participation in team discussions and a willingness to support colleagues.

• Innovation: A drive to explore new ideas, technologies, and approaches to solve complex problems and create impactful digital solutions.

• Commitment: Dedication to delivering high-quality work and achieving project success, with a focus on user value and business objectives.

• Fun: An encouraging environment that values a positive work atmosphere and fosters enjoyable team interactions.

• Trust: A foundation of mutual respect and reliability among team members, enabling autonomy and open communication.

Collaboration Style:

• Cross-functional Integration: Seamlessly working with Product Owners, engineers, and other stakeholders to ensure a unified product vision and execution.

• Process Improvement Culture: Proactively identifying opportunities to enhance workflows, design practices, and development processes, fostering a continuous learning environment.

• Knowledge Sharing: Actively participating in sharing insights, best practices, and lessons learned through various channels, such as pair programming, code reviews, and team meetings.

📝 Enhancement Note: The company's stated values—collaboration, innovation, commitment, fun, and trust—are central to their culture. For a Senior UX Engineer, this means being a proactive, communicative, and supportive team member who contributes positively to the team dynamic and embraces a growth mindset.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Ambiguity and Structure: Navigating environments with "low maturity" and "high ambiguity" requires the ability to define processes and make decisions with incomplete information, while also building scalable, long-term solutions.

• Influencing Without Authority: Effectively guiding and mentoring multiple teams on UX best practices without direct managerial power necessitates strong communication, persuasion, and relationship-building skills.

• Bridging UX and Frontend: Ensuring that high-fidelity UX designs are translated accurately and efficiently into production-ready frontend code, while also feeding frontend constraints back into design decisions.

• Maintaining Consistency: Establishing and enforcing design system standards and UX principles across a growing number of product teams to prevent fragmentation of the user experience.

Learning & Development Opportunities:

• Advanced UX/Product Strategy: Opportunities to deepen expertise in areas like user research methodologies, service design, or product strategy frameworks.

• Technical Leadership: Developing skills in frontend architecture, performance optimization, and leading technical initiatives.

• Mentorship & Coaching: Formalizing coaching skills through workshops or by actively mentoring junior team members and teams.

• Industry Exposure: Potential to attend industry conferences, workshops, and gain certifications relevant to UX, frontend development, or agile methodologies.

📝 Enhancement Note: The challenges presented are typical for senior roles in growing organizations, particularly those focused on digital transformation. The opportunities for learning and development are directly aligned with overcoming these challenges and advancing one's career in UX and engineering leadership.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to define UX for a product or feature with very little guidance or existing structure. What was your process, and what were the key outcomes?" (Focus on your methodology for dealing with ambiguity and creating structure.)

• "How do you influence engineering teams or product owners to adopt UX best practices when you don't have direct authority?" (Prepare examples of coaching, pair programming, or persuasive communication.)

Company & Culture Questions:

• "What interests you about knowmad mood's mission of digital transformation and sustainable development?" (Research the company's values and recent projects.)

• "How do you approach collaboration within a distributed, international team, especially when working with Product Owners and other engineers?" (Highlight your communication and teamwork strategies.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each selected project, clearly define the problem statement, your specific role and responsibilities, the design and development process, key decisions made, challenges encountered, and the quantifiable impact or learnings.

• Show, Don't Just Tell: Use visuals (screenshots, mockups, prototypes) extensively. For frontend work, consider sharing links to live examples or well-documented code repositories where appropriate.

• Highlight the UX/Frontend Connection: Explicitly explain how your UX vision translated into your frontend code and how technical constraints influenced your design.

• Emphasize Systemic Thinking: If relevant, showcase your contributions to design systems, component libraries, or efforts to ensure consistency across multiple products.

• Practice Your Pitch: Rehearse your presentation to ensure it flows logically, stays within the allotted time, and effectively communicates your value proposition.

📝 Enhancement Note: Interview preparation should focus on demonstrating both technical proficiency and strategic thinking. Candidates should be ready to articulate their problem-solving approach, leadership potential, and ability to thrive in a dynamic, collaborative, and remote environment. The portfolio is the primary tool for showcasing these capabilities.

📌 Application Steps

To apply for this Senior Product Experience & UX Engineer position:

• Submit your application through the provided link on the knowmad mood teamtailor portal.

• Customize your Resume: Tailor your resume to highlight your experience in user-oriented digital products, frontend development, UX principles application, and experience in low-maturity environments. Use keywords from the job description such as "Product Experience," "UX Engineer," "Frontend Development," "Design Systems," and "Agile."

• Prepare Your Portfolio: Select 2-3 of your most impactful projects that showcase your end-to-end product experience and UX engineering skills. Ensure each case study clearly outlines the problem, your solution, process, challenges, and results. Be ready to present this virtually.

• Research knowmad mood: Familiarize yourself with the company's mission, values (collaboration, innovation, commitment, fun, trust), and their focus on digital transformation. Understand their approach to remote work and employee development.

• Practice Your Presentation: Rehearse your portfolio presentation and be prepared to answer behavioral and situational questions related to your experience in ambiguous environments, influencing teams, and balancing UX with technical constraints.

⚠️ 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.