Guillermo Guerra

Building real-world applications and frontend platforms with a focus on usability, performance, and business-driven workflows.

• Built a booking platform and marketing site for a Med Spa, with reservation flows aligned to real business operations, including services, schedules, availability, and validation rules
• Developed the frontend with Next.js and TypeScript, using SSR where it made sense and tuning client-side behavior so the app feels fast and responsive
• Mapped the booking journey from real customer scenarios and feedback, then reduced friction so people can book appointments with fewer clicks and less confusion
• Worked directly with owners to translate day-to-day operations into clear screens, forms, and frontend behavior they can actually use
• Deployed the app on Vercel and integrated analytics to understand user behavior and identify drop-off points in the booking flow
• Designed and built the frontend for the G-Kloud platform, focusing on simple architecture, reusable UI pieces, and a deployment setup that can support future services
• Used AI-assisted tools such as Codex, Copilot, and Claude to explore solutions, support testing, and automate repetitive development tasks

• Next.js
• TypeScript
• React
• Vercel
• AI Workflows

Worked on large customer-facing booking platforms across multiple cruise brands, focusing on reliable, scalable frontend experiences with Vue 3 and TypeScript.

• Worked closely with product and design teams to understand booking flows and business rules, helping turn complex multi-step journeys into clearer and more intuitive UIs
• Built reusable components with Vue 3, Composition API, TypeScript, and Pinia, following an Atomic Design approach to keep the system organized and easier to maintain
• Identified repeated patterns across the platform and converted them into shared components and configurable variants, reducing duplication and speeding up development across teams
• Contributed to a multi-brand design system using design tokens so styles, themes, and interactions remained consistent across different cruise brands
• Maintained shared component libraries in Storybook, using interaction tests, unit tests, and mocked API data to better reflect real usage
• Used Chromatic for visual regression testing so unexpected UI changes were caught before release
• Published shared UI pieces as versioned npm packages, allowing multiple applications to depend on the same core components in a controlled way
• Helped move legacy frontend code onto a newer Vue 3 and TypeScript stack, consolidating multiple Storybook libraries into a more scalable system
• Worked with backend engineers to integrate REST APIs built with Scala / Play, handling edge cases and ensuring data was displayed correctly and reliably
• Improved performance and perceived speed with lazy loading, more efficient rendering patterns, and skeleton loading states
• Collaborated with designers to take Figma designs into production-ready UI, discussing edge cases, accessibility, and interaction details early
• Used tools like GitHub Copilot and Claude to speed up day-to-day development tasks, test ideas, and support refactoring

• Vue 3
• TypeScript
• Design Systems
• Storybook
• Chromatic

Built and maintained custom WordPress and frontend solutions for corporate sites with a focus on clean structure, reliability, and usability.

• Created reusable components and plugins instead of one-off pages, helping move toward a more scalable frontend architecture
• Integrated APIs and dynamic data sources to power product-driven pages and keep site content up to date
• Improved responsiveness and performance across devices, ensuring pages loaded quickly and behaved well on both mobile and desktop
• Worked with designers using Adobe XD, turning design files into functional, responsive web experiences
• Adjusted layouts, assets, and frontend code to improve performance and the overall user experience

• WordPress
• JavaScript
• CSS
• PHP
• APIs

Led the development of multiple web projects for different clients, making practical decisions about architecture, tools, and implementation.

• Built full-stack web applications using JavaScript, PHP, and modern frontend practices, balancing performance with maintainability
• Integrated APIs and backend services to support dynamic content, dashboards, and custom business workflows
• Improved usability and performance by simplifying navigation and reducing page load times for end users
• Managed several projects at the same time, setting priorities, coordinating deliveries, and making sure deadlines and client expectations were met

• JavaScript
• PHP
• HTML
• CSS
• REST APIs