Luiz – Typescript, Next.js, React

An extended-stay hotel chain focused on providing affordable, long-term accommodations. It catered to business travelers, relocating families, and individuals seeking budget-friendly lodging with essential amenities for extended stays.

Luiz's scope included, but was not limited to, such tasks:

• spearheaded an internal design system to increase code coverage of the components (e.g, pages, dynamic sections of forms);
• created the migration plan and frontend architecture to adopt Next.js;
• redesigned core Angular.js functionalities, including redirects, sitemaps, dynamic CMS pages, hotel search results, autocomplete, booking confirmation, Google Maps integration, and analytics tracking with GTM and Google Analytics;
• enabled caching, SSR-first, and performance-based reviews with Lighthouse and Sonarqube;
• helped stakeholders design new features to increase the lifespan of the project during an acquisition plan that happened internally, like Hotel Geofencing tracking, Breadcrumbs JSONP Schemas, and third-party script integrations;
• implemented cypress as the de-facto solution for e2e testing and covered the entire range of pages for the application;
• implemented husky and git-flow for proper branch cleanup and code review methodologies.

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• Participated in early documentations, RFCs, discussions and developments for Faststore Platform
• Introduced ADRs to assist the team to properly document architectural decisions
• Introduced the solution for the internal proxy handler currently used on Faststore Platform, after conducting a thorough research and syncing with my peers with the suggested approach, plus alternatives.
• Conducted, wrote and presented the Faststore Platform deployment strategy, which was then executed in the following months when integrating with sister pipelines (fastcheckout, sales-app & discovery)
• Conducted, researched and developed a solution to reassess the package manager control policy, aiming to remove library lock-ins, on Faststore. This was done mainly to assist the chosen Deployment Lifecycle document from Faststore Platform (which was mainly researched by me)
• Invited and actively participating as the Maintainer Engineer for Shoreline, being an active developer and contributing to Office Hours and internal decision making with my peers regarding future components, design decisions et al
• Integrated pipelines integration to allow downloading the source tarball after a deployment is completed on Faststore Cloud
• Researched and developed a solution on Faststore Cloud to allow deployments to be distinguished by the modules available on that store (through a monorepo or not)

The app enables parents to find and enroll their kids in activities such as sports, STEM, arts, dance, music, languages, etc., without having to make long-term commitments.

• Created the mobile architecture through Expo, using Android and iOS;
• Helped the backend team to create consistent DTOs and Schemas to properly meet the app expectations (different teams and different timelines were a big challenge);
• Created the web version of the app to work as a "preview" site as a CTA to download the app;
• Spearheaded development, organized sprints with the client;
• Managed app build pipelines from Sandbox, Dev, and Prod;
• Created a beta test workflow through Testflight;
• Integrated third-party auth services through Facebook, Apple, and Google;
• Implemented from scratch event-based tracking through Firebase Analytics.

The client was a leading platform specializing in size recommendation technology for e-commerce. It helped online shoppers find the perfect fit for clothing and footwear by leveraging AI and data analytics, enhancing customer confidence, reducing return rates, and improving overall shopping experiences for fashion retailers.

The following projects were planned, developed, and delivered by Luiz along with a team of engineers handpicked by him:

• Virtual Fitting Room: sales-pitch SaaS from the company.
• MySizebay: internal dashboard to handle product catalog, modeling table, e-commerce configuration, and VFR customization.
• Mix and Match: next-gen web app that uses AI to fit clothing for the user either through a pre-set avatar or through the user picture (sent by the user and complied through SOC2).

As the founding engineer on the project, Luiz carried out the following:

• designed and developed the system architecture from scratch, modernizing the tech stack with React, TypeScript, and Redux as the standard;
• led the migration from KnockoutJS, improving scalability, maintainability, and development efficiency;
• developed Virtual Fitting Room v3 (2019) and v4 (2020), used by millions monthly and trusted by major brands like Nike and Netshoes;
• integrated accessibility-compliant (ADA) components and i18n support, maintaining versioning through S3 and CloudFront;
• mentored front-end interns, implemented an onboarding program, and introduced coding dojos for continuous learning;
• researched and integrated emerging frameworks like Svelte for lightweight projects, including internal tools and reporting dashboards;
• developed internal applications to support customer data reporting, usage metrics, and other business needs;
• created the front-end hiring challenge and established coding standards to improve team efficiency;
• optimized front-end performance with module bundling, delivering a feature-rich web app with a minimal footprint (~100kb);
• maintained AWS infrastructure (CodeDeploy, S3, EC2, ECS, Route 53) and ensured seamless deployments;
• assisted in integrating the company’s core product into client e-commerce platforms for web and mobile;
• collaborated with leadership on product strategy, contributing to future enhancements and technical direction.

This educational institution provided early childhood education programs focused on fostering academic, social, and emotional development. It offered a play-based learning approach with a strong emphasis on STEM, literacy, and creativity, ensuring a well-rounded foundation for young learners.

As a Senior Front-end Engineer, Luiz contributed with the following:

• collaborated with the QA team to quickly resolve integration issues with schools, ensuring smooth feature delivery;
• enhanced School Tour Management with planning, scheduling, automated messaging, cancellation tracking, and customizable tour templates. Implemented GTM event tracking and developed a walkthrough-style Dynamic Tooltip system for improved dashboard usability;
• managed CI/CD on Azure DevOps to streamline deployments;
• worked with the backend team to update API types via OpenAPI and created a script to auto-fetch new .NET backend endpoints;
• integrated Adobe Experience Manager for school sites, handling custom content, event tracking, and routing using Java (backend) and TypeScript (frontend);
• developed a Tour Filtering and Pagination solution to handle large scheduling windows, delivering an urgent fix within a day.

A biometrics integration for truck drivers to be registered in the company's internal dashboard.

• Built the entire application from scratch, using React with Class Components with Redux as a State Management tool;
• Shared releases with Shareholders;
• Did training with Operators (responsible for onboarding truck drivers) for ~2 months;
• Manually did remote releases and deployments for the application;
• Integrated a third-party system written in Pascal to address truck driving biometry registry in a cross-shared SOAP API;
• Did field QA with truck drivers and worked on feedback for ~3 months.