UIUX Designer (Fixed-term contract)

Zaragoza - Spain

Monthly Salary: Not Disclosed

Posted on: 22 hours ago

Vacancies: 1 Vacancy

Job Summary

We are looking to fill this role immediately and are reviewing applications daily. Expect a fast transparent process with quick feedback.

Why join us

We are a European deep-tech leader in quantum and AI backed by major global strategic investors and strong EU support. Our groundbreaking technology is already transforming how AI is deployed worldwide compressing large language models by up to 95% without losing accuracy and cutting inference costs by 5080%.
Joining us means working on cutting-edge solutions that make AI faster greener and more accessible and being part of a company often described as a quantum-AI unicorn in the making.

We offer

Competitive annual salary starting from 45000 based on experience and qualifications.

Two unique bonuses: signing bonus at incorporation and retention bonus at contract completion.

Relocation package (if applicable).

Fixed-term contract ending in June 2026.

Hybrid role and flexible working hours.

Be part of a fast-scaling Series B company at the forefront of deep tech.

Equal pay guaranteed.

International exposure in a multicultural cutting-edge environment.

What youll do

Own the end-to-end design process for internal and customer-facing products: discovery flows/wireframes UI/UX handoff.
Create clean scalable UI designs for dashboards account management tools configuration panels and LLM-driven interfaces.
Build and maintain a Figma component library aligned with our engineering stack.
Collaborate daily with product managers engineers and domain experts in AI/quantum to translate highly technical concepts into usable interfaces.
Conduct small research loops with users and internal stakeholders to validate assumptions and improve the product experience.
Ensure design consistency and accessibility across applications.

Required Qualifications

25 years of experience as a UI/UX Designer Product Designer or similar role working on modern web applications.
Strong proficiency in Figma (design systems auto-layout component libraries prototyping).
Demonstrated ability to design complex dashboards data-heavy UIs configuration screens and workflow-oriented applications.
Solid understanding of user-centered design information architecture interaction design and usability principles.
Experience collaborating closely with product managers and engineers to translate business needs into intuitive user flows.
Ability to deliver production-ready UI specs design tokens component references and clear documentation for developers.
Comfortable running lightweight user research: interviews usability testing concept validation heuristic evaluation.
Strong visual design skills: spacing layout typography hierarchy consistency.

Preferred Qualifications

Experience designing interfaces for AI/ML tools LLM-powered products or automation workflows.
Familiarity with design systems used in modern frontend stacks (Tailwind ShadCN Material UI).
Experience with data visualization and storytelling (charts tables metric views drill-down patterns).
Ability to work in fast iteration cycles supporting experiments and internal prototypes.
Understanding of how engineering constraints influence design decisions ability to balance feasibility and UX quality.
Experience defining or maintaining a Design System for consistency across multiple internal tools.
Bonus: basic familiarity with frontend technologies (React TypeScript) to improve designerdeveloper collaboration.

About Multiverse Computing

Founded in 2019 we are a well-funded fast-growing deep-tech company with a team of 180 employees worldwide. Recognized by CB Insights (2023 & 2025) as one of the Top 100 most promising AI companies globally we are also the largest quantum software company in the EU.
Our flagship products address critical industry needs:

CompactifAI a groundbreaking compression tool for foundational AI models reducing their size by up to 95% while maintaining accuracy enabling portability across devices from cloud to mobile and beyond.

Singularity a quantum and quantum-inspired optimization platform used by blue-chip companies in finance energy and manufacturing to solve complex challenges with immediate performance gains.

Youll be working alongside world-leading experts in quantum computing and AI developing solutions that deliver real-world impact for global clients. We are committed to an inclusive ethics-driven culture that values sustainability diversity and collaboration a place where passionate people can grow and thrive. Come and join us!

We are looking to fill this role immediately and are reviewing applications daily. Expect a fast transparent process with quick feedback. Why join us We are a European deep-tech leader in quantum and AI backed by major global strategic investors and strong EU support. Our groundbreaking technology i...