pubGENIUS is a cutting-edge React.js + Next.js agency and Ad Tech startup that develops innovative digital products for clients across the US and Europe. We are seeking a talented

UX/UI Designer

who is passionate about creating exceptional user experiences that solve real-world problems.

At pubGENIUS, we believe design is more than just aesthetics. It's about understanding user needs, challenging assumptions and creating digital solutions that are intuitive, effective and delightful. We are looking for a designer who embraces this philosophy — someone who starts with user research, thinks critically and ensures every design decision is grounded in solving a genuine user problem.

Minimum 2 years of professional experience in UX/UI design

Strong portfolio showcasing end-to-end design work for web and mobile applications

Deep understanding of user-centred design methodologies, interaction design principles and visual design fundamentals

Proficiency in Figma, including experience with design systems and component libraries

Proven ability to conduct user research and translate findings into actionable design

improvements

Solid grasp of responsive design principles and best practices

Confidence in challenging assumptions and advocating for user-focused design solutions

Familiarity with AI tools and their application in the design process

Strong ability to work independently, manage time effectively and communicate asynchronously

Fluent English (C1 level) with excellent written and verbal communication skills for client-facing interactions

Experience collaborating with geographically distributed, multicultural teams

Preferred Qualifications

Experience working in a digital software agency or software development company

Basic understanding of front-end technologies (HTML/CSS)



to effectively collaborate with developers

Familiarity with prototyping and usability testing tools

Domain expertise in fintech, Ad Tech, iGaming, healthcare or e-commerce

Experience using AI-assisted design tools like Cursor or Claude Code for prototyping and building interactive concepts

Key Responsibilities

Own the end-to-end design process across multiple client projects, from initial discovery and wireframing through to final high-fidelity interfaces

Conduct comprehensive user research, including usability testing, interviews and data analysis, to understand user requirements and validate design decisions

Translate complex business requirements into intuitive design solutions, creating wireframes, prototypes and high-fidelity designs in Figma

Design responsive, accessible and technically feasible interfaces that adhere to best practices, design principles and WCAG (Web Content Accessibility Guidelines)

Develop and maintain design systems and component libraries to ensure consistency and efficiency across projects

Collaborate closely with project managers, developers and QA teams throughout the design and development process

Leverage AI tools to enhance your workflow, explore design alternatives, prototype concepts and improve overall output quality

Present and defend design decisions to clients and stakeholders, advocating for user-centric solutions

Continuously test, learn and iterate designs based on user feedback and data-driven insights

Fully remote work with the option to work from anywhere

Versátil engagement options: freelance, part-time or full-time

Competitive hourly compensation

Flexible working hours and an asynchronous work environment

Opportunity to work with a diverse, global team across various projects

Continuous learning and professional development opportunities

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📌 UX/UI Designer (Valencia)
🏢 pubGENIUS
📍 Valencia