Guillermo Guerra | Senior Frontend Engineer in Miami

About / Summary

A concise view of my engineering focus. More about Guillermo Guerra

Senior Frontend Engineer with 9+ years of experience building customer-facing applications, internal tools, and reusable design systems.

At For Crew Only, I own technical decisions across a connected commerce and logistics ecosystem: the customer website, catalog administration, warehouse Scanner, ship-side Kiosk, and Salesforce.

I combine React, Next.js, and TypeScript delivery with enterprise Vue 3 experience, API integration, operational workflows, and AI-assisted engineering.

Featured Projects

Selected case-study-style work focused on production UI architecture, business workflows, reusable systems, and real-world frontend edge cases.

For Crew Only

Current / Latest Work

Technical ownership across a connected commerce and logistics ecosystem serving cruise crew members. I build frontend workflows and coordinate integration decisions across the customer website, catalog administration, warehouse Scanner, ship-side Kiosk, and Salesforce backend.

Customer shopping, warehouse-specific product eligibility, account activation, package tracking, carts, and payments
Warehouse scanning, manifest preparation, ship delivery, physical returns, and durable offline cash workflows
Reusable UI and API contracts aligned with Salesforce business rules, catalog processing, regression testing, and release verification

React
Next.js
TypeScript
GraphQL
Salesforce Data Integration
REST APIs
Salesforce Apex / LWC
Design Systems
Accessibility / ARIA

G-Kloud

Production Business Platform

Visit G-Kloud

Production business platform built from scratch for proposal, invoice, admin, and internal workflow management.

Modular Next.js, React, and TypeScript frontend architecture with reusable UI patterns
Proposal and invoice workflows, admin tools, business process automation, and production deployment
Scalable component system designed to support future business workflows and internal tools

Next.js
React
TypeScript
Tailwind CSS
Node.js
Vercel

Hall of Beauty Med Spa

Delivered Production Project

Visit Hall of Beauty Med Spa

Designed and built the website and booking platform from the ground up, owning frontend architecture, responsive implementation, and production deployment for a Med Spa business.

Booking flow with service selection, scheduling, availability logic, and clear validation states
Marketing site structure designed for trust, responsive UX, and conversion-focused user flow
Production deployment with Next.js, React, TypeScript, Tailwind CSS, and Vercel

Next.js
React
TypeScript
Tailwind CSS
Vercel
Booking UX

Bore Tech

Delivered Client Website

Visit Bore Tech

Client website built from the ground up, with ownership of frontend structure, responsive implementation, reusable components, and production deployment.

Frontend architecture and reusable components built around client requirements
Responsive implementation across desktop and mobile experiences
Ownership from initial frontend structure through production deployment

Frontend Architecture
Reusable Components
Responsive Design
Production Deployment

Senior Care Services

In Development

Application in development, taking the product from initial requirements through frontend architecture, user flows, and preparation for release.

Translate requirements into application structure and user flows
Build the frontend foundation and reusable interface patterns
Prepare the implementation for release as the product develops

Frontend Architecture
User Flows
Reusable Components

Delkus Towers Condo

In Development

Visit Delkus Towers Condo

Website in development under an agreement with Delkus Towers Condominium Association, Inc., providing information for residents, owners, and prospective buyers and tenants.

Building information, resident guidance, association documents, and contact pages
Reusable components and responsive layouts built with Next.js, React, TypeScript, and Tailwind CSS
Content organized around association-provided information and building photography

Next.js
React
TypeScript
Tailwind CSS
Responsive Design

NCLH Design System / Booking Platform

Enterprise Case Study

Enterprise frontend work across multi-brand booking flows, shared Vue 3 component libraries, and configurable design-system patterns.

Vue 3 and TypeScript modernization with reusable UI components, design tokens, Storybook, Chromatic, and versioned npm packages
Booking flow components and interactive deck plan experiences with SVG-based cabin and deck selection interactions
REST API integration with Scala / Play Framework services and close collaboration across product, design, backend, and business stakeholders

Vue 3
TypeScript
Design Tokens
Storybook
Chromatic
npm Packages
REST APIs

Belzona / WordPress Corporate Sites

Corporate / Marketing Sites

Corporate and marketing website work spanning WordPress templates, reusable components, plugins, dynamic content, and responsive frontend implementation.

Custom WordPress templates, plugins, Advanced Custom Fields, Pods, and reusable content structures
Adobe XD to responsive frontend implementation for corporate, marketing, and product-driven pages
Dynamic content and API/data integration patterns for maintainable business websites

WordPress
PHP
JavaScript
SCSS
ACF
Pods
Adobe XD

View project archive

Experience

Professional history by role and company. Project-specific detail lives in Featured Projects above.

Mar 2026 - Present
Frontend Engineer
Freelance / Contract
Delivering frontend applications and owning architecture and integration decisions for client platforms, including the For Crew Only commerce and logistics ecosystem.
- Own technical decisions across FCO Website, catalog administration, Scanner, Kiosk, and Salesforce, aligning authentication, data, and business rules
- Build React, Next.js, and TypeScript workflows for shopping, packages, warehouse operations, manifests, delivery, returns, and payments through GraphQL and REST APIs
- Build client applications from the ground up: Hall of Beauty booking and marketing, Bore Tech, G-Kloud, and a Senior Care Services application in development
- Use Claude Code, OpenAI Codex, and GitHub Copilot for planning, implementation, debugging, testing, code review, and release validation
- React
- Next.js
- TypeScript
- GraphQL
- REST APIs
- Node.js
- Vercel
Aug 2022 - Mar 2026
Frontend Engineer
Norwegian Cruise Line Holdings
Built enterprise booking platform UI and multi-brand design-system foundations for cruise brands.
- Modernized Vue 3 and TypeScript frontend architecture across customer-facing booking flows
- Contributed reusable component libraries, design tokens, Storybook, Chromatic, and versioned npm packages
- Implemented booking flow and SVG deck plan interactions integrated with REST APIs backed by Scala / Play Framework
- Collaborated with product, design, backend, and business stakeholders on complex production UI requirements
- Vue 3
- TypeScript
- Design Systems
- Storybook
- Chromatic
- REST APIs
- Scala / Play Framework
Jun 2021 - Aug 2022
Full-Stack Developer
Belzona LLC
Built custom WordPress corporate and marketing sites with reusable templates and dynamic content systems.
- Created WordPress custom templates, reusable components, plugins, and maintainable content structures
- Used Advanced Custom Fields, Pods, JavaScript, SCSS, PHP, and WordPress theming patterns
- Converted Adobe XD designs into responsive frontend implementations for corporate and product pages
- Integrated APIs and dynamic data sources for product-driven and marketing-focused website experiences
- WordPress
- PHP
- JavaScript
- SCSS
- ACF
- Pods
- REST APIs
Jan 2017 - Jun 2021
Web Developer / Technical Lead
Get On Domain
Delivered client web applications and business tools using JavaScript, PHP, CodeIgniter, MVC patterns, and Bootstrap.
- Built dashboards, protected routes, and API-driven business functionality for client projects
- Implemented access-control logic, dynamic content, and custom workflow screens
- Led client project delivery across requirements, implementation, QA support, and production handoff
- Improved usability and maintainability through clearer navigation, frontend structure, and page behavior
- JavaScript
- PHP
- CodeIgniter
- MVC
- Bootstrap
- REST APIs

Skills / Technical Stack

The tools, frameworks, and delivery practices I use across production frontend systems.

Frontend Platforms

React
Next.js
Vue 3
TypeScript
JavaScript

Data & APIs

GraphQL
REST APIs
Salesforce Apex / LWC
Firebase Authentication
Node.js
Next.js API Routes
Async Processing
SQLite / IndexedDB

UI Systems

Design Systems
Design Tokens
Reusable Component Libraries
Storybook
Chromatic
Accessibility / ARIA
Tailwind CSS
SCSS

Delivery & Collaboration

Vercel
Git / GitHub
Jira
Figma
WordPress
PHP
CodeIgniter
Scala / Play Framework

AI-Assisted Development

GitHub Copilot
OpenAI Codex
Claude Code

Contact

Open to senior frontend engineering roles and production-focused contract work across React, Next.js, TypeScript, design systems, and API-driven UI.