We’re looking for a Senior UX/UI Designer – Digital Products
Barcelona · Hybrid · International Environment
Are you ready to shape high‑impact digital experiences in a fast‑growing Tech Hub? At Hays, we’re partnering with an international company looking for a Senior UX/UI Designer who thrives in end‑to‑end product ownership, Lean UX methodologies, and data‑driven decision‑making.
What will you do?
You will own and lead the full UX/UI design process for selected digital products and features — from discovery to final delivery.
You will:
Apply Lean UX principles : small iterative steps, lightweight artefacts and continuous validation with users and data.
Collaborate closely with Product, Engineering, Data/AI and Business stakeholders.
Translate insights into clear problem statements, hypotheses, and success metrics.
Design user journeys, flows and interactions across web, app and internal tools to create seamless experiences.
Build wireframes, interaction models and low‑ to high‑fidelity prototypes, delivering UI aligned with the brand, design system and accessibility standards.
Use AI‑assisted tools for ideation, variants, UX writing, localisation or research synthesis — always applying critical judgement.
Design and refine AI‑ and data‑enabled features (search, recommendations, personalisation, assistants, smart tooling…).
Make decisions based on both quantitative and qualitative data.
Design not only for humans but also for synthetic users (AI agents, scripts), ensuring robust interaction contracts.
Contribute to the design system and cross‑platform consistency.
As a Senior: lead workshops, provide feedback to fellow designers, and help elevate UX practices across teams.
Your Profile
Several years of experience in UX/UI design in agile, fast‑paced environments.
Degree in Design, HCI or related field — or equivalent hands‑on experience.
Strong portfolio including:
End‑to‑end product design
Complex flows and interaction/service design
Strong visual design fundamentals
Demonstrated impact on user/business outcomes
Proven Lean UX mindset and collaborative approach with Product & Engineering.
Proficiency with modern design/prototyping tools (Figma, Sketch, Adobe CC, Axure, Framer…).
Strong analytical skills and user research capability.
Solid understanding of AI/ML in product design (trust, transparency, user control).
Practical experience using AI tools in your design workflow.
Interest or experience designing for non‑human users is a plus.
Strong communication skills in English; German is a plus.
For Senior level: ownership, the ability to influence across teams, and mentoring experience.
What’s in it for you?
Direct contract with the company.
Young, dynamic environment where you can contribute and co‑create the Tech Hub culture.
10% discount on the company’s entire website.
Flexible Pay “MediaFlex Program” (Meal vouchers, private medical insurance, etc.).
Flexible working hours + hybrid model.
Intensive workday every Friday and during summer.
Option to work from two offices in Barcelona (HQ with subsidised menu under €4, or Pier01 with free weekly fruit & coffee).
Annual training budget to grow professionally and personally.
Free language classes (English, Spanish, German).
Birthday off — your day to enjoy.
Work with a cutting‑edge tech stack in a truly international team.