front-end at TwilaGabriela
Liz.
Front-end developer and tech lead at Twila. Six years of React and TypeScript, after starting full-stack with Rails, .NET and React Native.I have been working with React and TypeScript for six years, across fintech, consultancies and SaaS. Right now I am the frontend technical lead at Twila. I started out full-stack, with Rails, .NET and React Native, and I want to get back to working with back-end too.
6
years shipping
7
companies
React · TypeScript · Next.js · React Query · Zustand · Jest + RTL · Radix · Tailwind · Prisma · tRPC ·
Projects
all projects ↗
brev.ly ↗
URL shortener with a metrics dashboard. Optimistic cache so click counters never make the table flicker.
Next.js · TypeScript · tRPC
Doebem ↗
Volunteer front-end for a Brazilian donation NGO. Responsiveness and multimedia components, live with real traffic.
React · Next.js · TypeScript
Financy ↗
Personal finance manager: income, expenses and categories in a dashboard, with a GraphQL API and JWT auth.
React · TypeScript · Node.js
Path
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- —Technically lead the frontend team (React, Next.js, TypeScript): define architecture decisions, conduct PR reviews, and take part in meetings with clients and integrated service providers.
- —Own the implementation of strategic features and critical external integrations with React/Next.js: identity validation, authentication (Auth0), credit card payment processing, and document upload to S3.
- —Architected the design system shared between Credicarro and Parcele Mais (React, Style Dictionary, Tailwind, Storybook), eliminating inconsistencies that affected 45% of components and achieving 100% visual standardization across products.
- —Implemented E2E (Playwright) and unit tests (Vitest + React Testing Library) in CI, raising test coverage from 0% to 25% (targeting 70%), increasing the reliability of the deployment pipeline.
- —Resumed development of Suite Fiscal (Angular, TypeScript), a product with stalled progress, resolving long-standing issues and improving the visualization of SQL-driven query modules.
- —Fixed forms and registration modules that were causing slow load times and incorrect data submission, across Suite Auditor (React) and Suite Fiscal (Angular).
- —Collaborated with the back-end team on building new modules, integrating new API endpoints with React Query and TypeScript.
- —Developed Yoobe Plataforma and Yoobe Commerce using React, Next.js (Next Commerce + Spree provider), TypeScript/JavaScript, and Formik/Material UI for forms and components.
- —Refactored 60% of Yoobe Plataforma, improving performance and making it easier to add new features.
- —Implemented accessibility improvements, enabling clients with visual impairments to use the platform.
- —Developed interfaces for Geru, a personal loan product, using React, Next.js, TypeScript, Chakra UI, and Formik, within a modular and scalable microfrontend architecture.
- —Optimized site performance, accessibility, and SEO, reaching 90 points on Lighthouse.
- —Implemented unit tests with Jest and React Testing Library, raising test coverage to 70%.
- —Documented reusable components in Storybook and integrated feature flag control via GitLab.
- —Contributed to phasing out a legacy system with a high incidence of bugs, migrating functionality to 100% adoption of the new platform (React.js) and eliminating inconsistencies inherited from the old codebase.
- —Diagnosed and fixed a critical connectivity bug between the React Native app and MongoDB, restoring app stability in production.
- —Developed full-stack features with Ruby on Rails, React.js, and React Native, using Redux, MongoDB Realm, MySQL, AWS, Azure, and Docker.
- —Built full-stack modules (.NET + ASP.NET on the back-end, JavaScript/jQuery on the front-end) for the new Seven Suite, including reporting, ticket management, time tracking, and statements, from the database through to the final UI.
- —Applied a design system with SCSS to standardize the project’s visual identity, increasing consistency across modules built from scratch.
- —Developed back-end functionality with Ruby on Rails for the Fleeg product, with automated testing in RSpec, plus occasional front-end support with HTML, CSS, and jQuery.
Now
/now →Wrapped up my Tech Development 360 postgrad at FTR.
Studying back-end so I can work full-stack, not just front-end.
Walking my dog and watching Masterchef with my mom.
Education
all certificates (6) ↗- —Postgrad, Tech Development 360 · FTR · completed 2026
- —BSc Software Engineering · Católica SC · 2020—2023
- —3rd place, Hackathon Inova Católica · 2020
- —English B2 (MET, Michigan) · Calvert Academy, American school
Let's talk
Always open to a conversation, whether it is about front-end, back-end or whatever you are building. Send me a message and I will get back to you within a day.
·Joinville, Brazil — GMT-3, remote, overlapping hours with Europe and the US
·Native Portuguese, English B2 (MET, Michigan)