Senior UX/UI Designer

Job Description:

Company Description

We Dream. We Do. We Deliver.

At Merkle, a dentsu company, we power the experience economy. Whether we’re building the next great app, running CRM at scale for global brands, delivering technology architectures that support millions of users, or providing world-class data, identity, and insights solutions, it’s all in the name of crafting experiences that set brands apart from the competition. Backed by dentsu's legacy of innovation and creativity originating in Japan, we’ve spent over 35 years helping brands build loyalty, drive growth, and connect meaningfully with their audiences.

We’ve been named a global “Leader” by top industry analyst firms in categories as wide-ranging as digital transformation and commerce, experience design, engineering and technology integration, digital marketing, data science, CRM and loyalty, and customer data management.

Why choose Merkle?

Innovation at Our Core: As part of dentsu’s global network, Merkle pushes the boundaries of customer experience, integrating creativity, technology, and data to drive real-world impact. For over 35 years, we’ve been innovating to meet the changing needs of our clients.

Global Reach with Local Expertise: With over 16,000 employees across 30+ countries, and part of a 70,000 employees’ network at dentsu, Merkle blends global insights with a deep understanding of local markets to deliver personalized, effective solutions.

Collaborative Culture: At Merkle, your ideas and contributions truly matter. You’ll join a team that fosters innovation, collaboration, and creative problem-solving. Together, we work on impactful international projects, making meaningful connections every step of the way.

And we are looking for a UX/UI Designer to reinforce our team!

Job Description

Do you have a thirst for knowledge and are fascinated by digital solutions? We are currently looking for an UX/UI Designer that could be able to take the responsibility for envisioning and shaping first-class, innovative digital touchpoints, and bringing new ideas to life and enthrall our clients with unique digital experiences.

Being the connecting piece between business goals, user needs, and technical implementation, you collaborate deeply with CX strategists, other designers, and developers, always acting as advocates for users’ needs throughout the entire process.

What do we expect:

You are a proven, multi-skilled, flexible, and experienced Senior UX/UI Designer with a strong portfolio that demonstrates your expertise across the full design lifecycle.

You will:

• Demonstrate experience working collaboratively to align the needs of our clients with those of their end users, from initial concept through to final delivery

• Have experience working in agile, multidisciplinary teams, designing end-to-end digital customer experiences (e.g. commerce, brand, and service experiences)

• Be comfortable designing short-term experiments and learning prototypes, as well as scaling concepts into robust, long-term solutions

• Translate visions and ideas into ambitious design concepts, from wireframes to high-fidelity user interfaces

Collaboration & Craft

• Collaborate closely with other UX/UI designers to brainstorm concepts, sketch ideas, and create low- and high-fidelity prototypes to shape user-centered design solutions, that can be rapidly tested with users

• Design accessible, intuitive, consistent, and delightful digital experiences, with strong attention to detail and pixel-perfect execution

• Work with designers and developers to create responsive layouts, including interactive states, motion, and animation

• Contribute to and work within design systems, ensuring consistency and scalability across products

Qualifications:

You bring passion for digital creation and deep expertise in:

• Human-centered design, information architecture, interaction design, and usability

• A completed degree in design (university or technical college), e.g. in the field of communication, web or interaction design, or a comparable qualification

• Minimum 3-5 years of professional experience designing complex digital products and applications, preferably in an agency or product-driven environment

• Strong creative and analytical thinking, with the ability to understand complex systems and processes

• Excellent knowledge of core UX principles and methodologies (usability, accessibility, inclusive design, etc.)

• Practical experience with Design Thinking fundamentals

• Hands-on experience with industry-standard tools such as Figma, Miro, and other prototyping and collaboration tools

• Experience facilitating workshops, conducting benchmarking, usability testing, walkthroughs, and end-to-end UX processes

• Strong understanding of UI design principles, interaction design, and responsive design best practices

• Experience applying user-centered and inclusive design principles

• Hands-on experience building, maintaining, and contributing to design systems

• Experience across B2B, B2C, and e-commerce projects

• Solid technical understanding of modern web technologies

• Experience working closely with development teams in agile environments

• Ability to leverage AI tools to support and enhance daily design workflows

• Passion for staying up to date with the latest UX/UI trends, tools, and technologies

Communication & Collaboration

• Excellent communication and presentation skills

• Comfortable collaborating within cross-functional teams

• Fluent in English, written and spoken

Please submit a strong portfolio including detailed case studies of projects you have worked on. We are especially interested in seeing:

• Your design and problem-solving process

• Product vision and strategy

• Research insights and customer journeys

• Wireframes, prototypes, and final designs

• Team setup and collaboration approach

• Project duration, challenges, and outcomes

Work visa sponsorship is not available. For local documentation (NIF, NISS), please consult Portuguese authorities.

Additional Information

Benefits and perks:

• 25 vacation days

• Enjoy 2 additional volunteering days to support your passion project

• Mental Health: Benefit from 3 extra wellness days on top of your vacation days and a Mental Health First Aider and Employee Assistance program to support your well-being

• Health insurance (also possible for family members)

• Cutting Edge Technology & Latest IT tools

• Software-house environment

• Agile and Flexible working hours

• Hybrid working: we combine flexibility with in-person collaboration, with an expectation of 1 day per week/ 4 days per month in the office

• Digital nomad policy

• Focus on career development

• Full access to Dentsu Academy, our global online learning platform

• Beers, foosball, and ping-pong! #workhardplayhard

• Free breakfast every second Wednesday of the month

• Employee discounts

• Team & Company events

• Referral bonus program

At dentsu, Diversity, Equity, and Inclusion (DEI) is central to our vision: "To be at the forefront of people-centered transformations that shape society."

We cherish the unique talents and perspectives of all individuals, welcoming applicants regardless of gender, gender identity, nationality, religion, ethnicity, cultural background, sexual orientation, age, physical or mental ability. By embracing diverse perspectives, we create meaningful change and sustainable growth for our people, clients, and society. Our hiring decisions are guided by qualifications and role-specific requirements, ensuring a workplace free from discrimination and harassment.

#LI-Hybrid #LI-MERKLE

Location: Lisbon

Brand: Merkle

Time Type: Full time

Contract Type: Permanent