Port-
Folio
Product Design and UX/UI
for Complex Digital
Ecosystems
Guillermo Sánchez, 8+ years crafting and optimizing Experiences, UX, UI and Design Systems for clients like PreZero, Cepsa, Ferrovial, and Engie.
01
End-to-end cross-device platform
User-centered design across web, mobile, and desktop.
1,000+ companies · 80% interface adoption
02
Scalable Design System in Figma
Streamlining styles and boosting visual consistency.
Up to 35% faster design and development cycles
03
Responsive mobile app for training
Hands-on training with industrial machinery.
-20% maintenance time.
04
Corporate Website UX/UI Redesign
Research, Prototyping, Validation, Development and Iteration.
+10% in Monthly Sign-Ups.
05
Desktop App for Incident Management
Internal Tool for Tunnel Inspections
50% reduction in tunnel closure time.
06
E-commerce and Dashboard for B2B SaaS
E-commerce design and account management.
Freeing up to 40% of the commercial team’s workload.
Design approach

Research
Analyze product, objectives, competition and industry through interviews, user research...

Prototype
Transform research insights into wireframes and user flows aligned with business and development.

Design
Design hi-fidelity interfaces and functional prototypes, improving user interaction and experience.

Validation
Test and optimize with stakeholders using user feedback and metrics.

Iteration
Iterate on designs and prototypes, optimizing experience and maximizing usability.
Let's talk about me
