Marcelo Augusto Domingos

OnneChat

Core engineer at OnneChatOnneChat (onne.chat), shipping SaaS products for service businesses. Leading OnneBookOnneBook (onnebook.com.br) — scheduling, automation, and the shared design system and architecture across the ecosystem.

Tech Stack: React, Next.js, TypeScript, Tailwind CSS, Figma, NestJS, Docker, Elysia, Prisma, Keycloak, Bun, PostgreSQL, RabbitMQ, Redis

Bun

Docker

Elysia

Figma

Keycloak

NestJS

Next.js

PostgreSQL

Prisma

RabbitMQ

React

Redis

Tailwind CSS

TypeScript

Shiddo

Building high-performance web apps for enterprise clients at ShiddoShiddo (shiddo.com.br). Turn complex UI/UX into responsive, accessible interfaces, and maintain reusable component libraries wired into solid backend and auth flows.

Tech Stack: React, Next.js, Vue, TypeScript, Tailwind CSS, Figma, NestJS, Docker, Elysia, Prisma, Keycloak

Docker

Elysia

Figma

Keycloak

NestJS

Next.js

Prisma

React

Tailwind CSS

TypeScript

Vue

Labi9

Championed code quality by conducting rigorous code reviews and establishing engineering best practices within the team at Labi9Labi9 (labi9.com).

Successfully resolved complex technical challenges, focusing on application performance optimization, seamless API integrations, and the delivery of robust features on the web stack.

Tech Stack: React, Next.js, Vite, Astro, Vue, Jest, TypeScript, Node.js, Tailwind CSS

Astro

Jest

Next.js

Node.js

React

Tailwind CSS

TypeScript

Vite

Vue

Oct 2024 – Jan 2025

Mobile DeveloperOct 2024 – Jan 2025

Initially joined to develop performant cross-platform mobile applications using React Native and Expo.

Tech Stack: React, React Native, Expo, Vue, TypeScript, Jest, React Testing Library, Vite, Tailwind CSS

Expo

Jest

React

React Native

React Testing Library

Tailwind CSS

TypeScript

Vite

Vue

Loopscape

Played a pivotal role in advancing the LoopvetLoopvet (loopvet.com.br) SaaS platform and building LoopscapeLoopscape (loopscape.com.br)'s website by architecting and developing critical modules using React and Vite.

Spearheaded the development of a comprehensive Bath and Grooming scheduling module, featuring drag-and-drop Kanban boards for appointment management and detailed service analytics.

Driven continuous UI/UX optimizations that significantly boosted user engagement and directly contributed to the company exceeding its paid subscription targets.

Provided cross-functional support by designing multimedia assets, including motion graphics and marketing materials for social media and presentations.

Tech Stack: React, Vite, Next.js, MUI, Tailwind CSS, JavaScript, TypeScript, AdonisJS, Figma, Adobe After Effects, CapCut

Adobe After Effects

AdonisJS

CapCut

Figma

JavaScript

MUI

Next.js

React

Tailwind CSS

TypeScript

Vite

Freelance

Partnered with clients end-to-end — concept, design, and build for custom web apps and institutional sites. Focused on performance, SEO, and clean third-party API integrations.

Tech Stack: React, Vite, Next.js, JavaScript, TypeScript, Tailwind CSS, Figma, Firebase

Figma

Firebase

JavaScript

Next.js

React

Tailwind CSS

TypeScript

Vite

C.A.Mundial

Built C.A.MundialC.A.Mundial (camundial.com.br)'s corporate site from scratch with React and Styled Components. Owned brand identity, campaign design, and motion graphics across Figma and Adobe Creative Suite.

Tech Stack: React, Styled Components, JavaScript, Figma, Adobe Illustrator, Adobe Photoshop, Adobe After Effects

Adobe After Effects

Adobe Illustrator

Adobe Photoshop

Figma

JavaScript

React

Styled Components

FATEC Jahu

Web application architecture, UI design, and full-stack development — with hands-on work in databases, systems analysis, cybersecurity, mobile, and distributed systems.

Tech Stack: HTML, CSS, JavaScript, PHP, Java, PostgreSQL, Figma, Dotnet

CSS

Dotnet

Figma

HTML

Java

JavaScript

PHP

PostgreSQL