We are

Merlin Digital Partner ! A

leading IT and Digital headhunting company

who stands out from the crowd, boasting over a decade of experience. We've

successfully collaborated and played a pivotal role in the growth of industry heavyweights

such as Wallapop, Glovo, Banc Sabadell, and Duracell, among others.

Our

emphasis lies in people-centric approaches and optimizing the selection processes . Our

mission is to revolutionize companies by seamlessly integrating top-tier talent . What sets us apart is our

in-depth understanding of each partner

(being their best influencer!), addressing not only their needs but also capturing their essence.

Our partner is a fast-growing

HealthTech company

developing connected technologies at the intersection of

hardware, embedded systems, IoT, AI, and digital health . Their technology transforms everyday environments into intelligent health platforms, enabling seamless and continuous health monitoring.

We are currently looking for a

Senior Product Designer (UX/UI)

with a

100% product-centric mindset

to join their Product team and drive the end-to-end user experience of their next-generation digital ecosystem.

Mission: As a

Senior Product Designer (UX/UI) , your mission will be to own the user experience across the digital product lifecycle, transforming complex health data, hardware interactions, and business strategy into clear, intuitive, and highly functional digital products.

You will play a central role in aligning product vision with user needs, defining design strategy, and ensuring that every interface delivers tangible business and user value. Working closely with

Product Managers, Engineering, Data, and Hardware teams , you will champion user-centric methodologies to build scalable and high-impact digital experiences.

The Role: You will be responsible for:

Product Strategy & Discovery:

Leading product discovery phases, mapping problem spaces, user journeys, and aligning design decisions directly with core product metrics and business objectives.





Conducting qualitative and quantitative user research (interviews, usability testing, data analytics) to derive actionable product insights.

End-to-E nteraction Design:

Designing user flows, information architectures, wireframes, and pixel‑perfect high‑fidelity web and mobile interfaces.

Building and testing interactive prototypes to validate concepts, iterate rapidly, and solve complex UX problems before development.

Design System & Scalability:

Owning, maintaining, and scaling the multi‑platform

Design System

(component libraries, design tokens, interaction standards, and documentation).

Ensuring visual consistency, accessibility, and UI excellence across all digital touchpoints.

Cross‑Functional Collaboration & Delivery:

Partnering daily with Frontend and Software Engineers to evaluate technical feasibility and ensure seamless, high‑quality design hand‑offs.

Defining UX success metrics alongside Product Managers to measure post‑launch adoption, friction points, and feature performance.

What we need:

5+ years of professional experience

as a Product Designer, UX/UI Designer, or interaction designer working on end‑to‑end digital products (Web & Mobile Apps).

100% Product-Centric Mindset:

Deep understanding of how design directly drives product growth, retention, user engagement, and business goals.

Mastery of Design Tools:

Expert knowledge of

Figma

(Auto‑Layout, Design Tokens, Component Libraries, Variables, and Advanced Interactive Prototyping).

Design Systems Ownership:

Demonstrated experience creating, scaling, and maintaining production‑ready design systems.





UX Research & Validation:

Hands‑on experience planning, executing, and synthesizing user testing and data‑driven feedback loops.

Cross‑functional Alignment:

Proven ability to collaborate effectively with Product Managers and Developers in fast‑paced, Agile environments.

Strong Communication:

Ability to articulate, defend, and present design rationales clearly to key stakeholders.

Professional English level.

Hybrid Work Model:

Ability to work on‑site at our Barcelona office 3 days a week.

Nice to Have

Previous experience designing interfaces for

IoT products, connected devices, wearable tech, or physical‑digital service ecosystems .

Previous experience in

HealthTech, MedTech, or SportsTech

environments handling complex telemetry and health data visualizations.

Basic understanding of frontend technologies ( HTML/CSS, React, Tailwind ) to facilitate developer hand‑off and technical alignment.

Experience with product analytics and research tools ( Mixpanel, Hotjar, Amplitude, Google Analytics ).

Experience in high‑growth startups or tech scale‑ups.

What we offer:

Join a

fast‑growing HealthTech company

building a new generation of intelligent, connected health technologies.

Work at the intersection of

embedded systems, hardware, IoT, cloud, AI, and digital health .

Build technologies powering products already used by

leading sports organizations and enterprise customers worldwide .

Take ownership of

high‑impact product design initiatives , from concept and discovery through to final production.

Collaborate with a talented multidisciplinary team across

Hardware, Backend, AI, Data, and Product .

Have a

visible impact on product roadmap and design direction

as the platform continues to scale internationally.

Work in a fast‑paced environment with a high level of

autonomy and ownership .

Competitive compensation

based on experience.

#J-18808-Ljbffr

📌 Senior Product UX/UI Designer (Barcelona)
🏢 Merlin Digital Partner
📍 Barcelona