Available to hire
Hi, I’m Giovany Cruz Castillo, a UI/UX Designer based in Havana, Cuba. I craft intuitive interfaces and user flows for web and mobile products, focusing on conversion, accessibility, and scalable design systems. I collaborate with product and development teams to deliver polished brands and engaging digital experiences.
I enjoy turning complex requirements into clear, delightful designs, from brand identity and websites to prototyping and user testing. I’m always learning new tools and techniques to stay ahead in the dynamic field of UI/UX and front-end design.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
Spanish; Castilian
Fluent
English
Advanced
Work Experience
UI/UX Designer at Avangenio S.R.L
November 1, 2022 - PresentDesigned user interfaces and flows for CompraToday and ChevereCompra, optimizing the Checkout experience and Email Marketing templates, increasing conversion by 32%. Created the backoffice for La Papeleta to improve content management. Led brand identity and website design for Plataformia and SocIA from concept to final design. Optimized iterative design processes with prototyping and user testing, reducing delivery times by 46%. Designed the brand identity and website for the Hackathon Challenge 2025, generating 50% more traffic than the prior year. Collaborated on the YareyTech website. Led the redesign of Avangenio's official site, increasing business visibility by 32% and reducing HR outreach by 16%. Improved the UI for Q´Hay? to achieve 28% more platform traffic.
Project Manager at Avangenio S.R.L
May 1, 2025 - PresentManaged a design team, overseeing projects from planning to final delivery. Optimized collaborative workflows, improving efficiency by 32%, reducing delivery times and increasing product quality. Coordinated between projects to align objectives and quality standards.
UI/UX Designer at NEXOLIFE
October 1, 2025 - PresentDesigned the event management system for the International Ministry of Word and Power: 'Nights of Glory', with over 15 functional modules by roles and responsive design, reducing layout and frontend development times by 40%. Designed the internal management system for NEXOLI FE, with over 18 functional modules by roles, reducing layout and frontend development times by 48%.
UI/UX Designer at Freelance
April 1, 2025 - PresentDesigned the brand manual for Cuba Adventures, including visual identity, graphic guidelines, and digital assets, ensuring consistency across all platforms.
Education
Bachelor's degree at University of Informatics Sciences
January 11, 2030 - July 1, 2024Pre-University at Eugenio María de Hostos Pre-University
January 11, 2030 - July 1, 2017Bachelor's in Computer Science, UI Design at University of Informatics Sciences
January 11, 2030 - July 1, 2024Pre-University at Eugenio María de Hostos Pre-University
January 11, 2030 - July 1, 2017Qualifications
Industry Experience
Software & Internet, Media & Entertainment, Computers & Electronics, Education, Gaming, Professional Services
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Hire a UI Designer
We have the best ui designer experts on Twine. Hire a ui designer in Havana today.