Antai Ventures

Product Designer

Antai Ventures

full-time

Posted on:

Location Type: Hybrid

Location: Barcelona • Spain

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About the role

  • Design end-to-end product experiences, from discovery and flows to polished UI and detailed interactions.
  • Turn complex user needs, business goals and data into simple, intuitive and high-quality product experiences.
  • Own the user experience across the full product lifecycle: research, ideation, prototyping, testing and execution.
  • Work closely with product managers, engineers, data scientists, growth, sales and marketing to define and ship new products and features.
  • Create clear, implementation-ready designs that engineers can build from with speed and confidence.
  • Build and evolve design systems, interaction patterns and reusable components.
  • Prototype fast and often, using both traditional design tools and AI-powered tools to validate ideas early.
  • Use AI workflows and agentic systems to improve how you research, generate concepts, test ideas and accelerate execution.
  • Act as the voice of the user while balancing product ambition, technical feasibility and speed.
  • Help the team explore new ways of working at the intersection of design, product and AI.

Requirements

  • You have experience as a Product Designer, with a strong portfolio showing end-to-end product thinking across multiple projects.
  • You are an excellent UX/UI designer, but also highly pragmatic and execution-oriented.
  • You are AI-native in the way you work: you actively use AI tools to research, think, prototype, write, generate, iterate and ship faster.
  • You are comfortable using or experimenting with agentic systems, AI copilots, automation workflows, and multi-step AI tools as part of your design process.
  • You have built prototypes yourself, or used AI-assisted coding / low-code / no-code tools to bring ideas to life without always depending on engineering first.
  • You enjoy prototyping and testing ideas quickly, and you are excited by the idea of turning concepts into working experiences in days, not weeks.
  • You can go from ambiguity to clarity and are comfortable working in fast-moving, early-stage environments.
  • You communicate clearly and can influence cross-functional teams with strong reasoning and product judgment.
  • You are comfortable with research, user testing, analytics, experimentation, competitor analysis and defining product metrics.
  • You have solid experience with Figma.
  • You care deeply about product quality, user empathy and craft.
  • You are fluent in Spanish and English.
Benefits
  • Full-time role based in Barcelona.
  • The opportunity to work on ambitious products with top-tier founders and operators.
  • A young, fast-moving and highly entrepreneurial environment.
  • Exposure to multiple ventures and real product-building from day one.
  • Strong growth opportunity within one of Europe’s leading venture studios.
  • Beautiful seaside offices in front of La Barceloneta.
Applicant Tracking System Keywords

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

Hard Skills & Tools
UX designUI designprototypinguser testinganalyticscompetitor analysisproduct metricsAI toolslow-code toolsno-code tools
Soft Skills
communicationinfluencingreasoningproduct judgmentuser empathycraftsmanshipadaptabilityexecution-orientedcollaborationproblem-solving