Perk

Principal Product Designer

Perk

full-time

Posted on:

Location Type: Hybrid

Location: Barcelona • Spain

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Job Level

Lead

About the role

  • As a Principal Product Designer on Perk’s Core AI team, you will shape how AI is embedded across our product in a way that is trustworthy, intuitive, and genuinely useful for customers.
  • You will partner closely with Product, Engineering, Data/ML, and Design leadership.
  • You will help teams go from “we could add AI here” to clear problems, strong interaction models, validated solutions, and high-quality shipped experiences.
  • This is a UX/UI role with significant emphasis on interaction design, systems thinking, and craft quality.

Requirements

  • Experience: 8+ years working as a Product Designer on complex products (ideally with SaaS products). Experience leading ambiguous, cross-product initiatives.
  • AI product experience: Proven experience designing and shipping AI-powered experiences (LLM or ML). You understand core concepts like probabilistic outputs, hallucinations, retrieval, evaluation, latency trade-offs, and how these shape UX.
  • Interaction and UI design: You excel at interaction design and UI craft. You can set quality standards for modern, dense product surfaces and simplify complex workflows.
  • System thinking and information architecture: You can design scalable interaction patterns (not just one-off features) and create clarity across complex journeys and permissions.
  • Experimentation and iteration: You are comfortable working in iterative loops, using prototypes, dogfooding, and rapid testing to learn quickly, especially when “requirements” are unclear.
  • User research and testing: You know how to de-risk AI experiences through research, including testing comprehension, trust, calibration, and workflows. You can combine qualitative and quantitative signals.
  • Business thinking: You connect design decisions to customer and business outcomes. You can articulate success metrics and trade-offs clearly.
  • End-to-end execution: You can take initiatives from concept to launch across multiple teams, breaking down complexity into shippable milestones.
  • Storytelling and influence: You can align senior stakeholders, communicate the “why,” run workshops, and coach teams on better AI product thinking and craft.
  • Technical collaboration: You collaborate deeply with engineers and data/ML partners, and understand technical constraints well enough to shape feasible solutions and guide implementation quality.
  • AI tools: You actively use AI tools to enhance your workflow. You know how to prompt effectively, critique outputs, and build repeatable workflows while being thoughtful about safety and privacy.
Benefits
  • Competitive compensation, including equity in the company;
  • Generous vacation days so you can rest and recharge;
  • Health perks such as private healthcare or gym allowance, depending on location;
  • "Flexible compensation plan" to help you diversify and increase the net salary;
  • Unforgettable Perk events, including occasional travel to one of our hubs;
  • A mental health support tool for your well-being;
  • Exponential growth opportunities;

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
Product DesignInteraction DesignUI DesignInformation ArchitectureUser ResearchPrototypingAI Product DesignSystems ThinkingExperimentationEnd-to-End Execution
Soft skills
StorytellingInfluenceBusiness ThinkingCollaborationCommunicationLeadershipCoachingProblem SolvingAdaptabilityCritical Thinking