Gustavo Domingueti
São Paulo
Summary
Senior Frontend Engineer with over 10 years of experience. I specialize in React.js, have deep expertise in Next.js and Angular, and use TypeScript as my primary language for building scalable, high-quality frontend applications. I also bring experience with Vue.js, NX monorepos, microfrontend architectures, and other modern tools that support performance, modularity, and long-term maintainability.
Throughout my career, I’ve led complex UI initiatives — from modernizing legacy systems to designing large-scale, modular applications — using React Query, TanStack Router, Vite, Next.js, Tailwind, Angular, Vue.js, and architectural patterns that keep systems flexible and maintainable over time.
Key achievements:
- Migrating multi-portal frontend environments into a unified NX monorepo, creating shared libraries, optimizing build times, and integrating CI/CD pipelines using GitHub Actions + Azure Static Web Apps.
- Designing communication layers and shared domains for microfrontends using Module Federation, reducing duplicated logic and improving cross-team collaboration.
- Implementing advanced navigation and UI flows — such as multi-drawer patterns, catalog/menu systems, and multi-step experiences — leveraging Angular reactive patterns, signals, and router state.
- Creating reliable authentication and SSO flows with Keycloak, including guards, interceptors, token-refresh logic, and reusable auth libraries for cross-project use. Beyond the code, I’m recognized for clear communication, mentoring teammates, facilitating technical discussions, and helping teams evolve their frontend practices. I enjoy creating systems, patterns, and processes that make engineering faster, safer, and more enjoyable. Always exploring new ideas, always raising the bar — and always aiming to deliver meaningful experiences for users.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior Frontend Engineer
Freelance
Remote
04.2025 - Current
Lead Frontend Engineer
Tagme
Rio de Janeiro, Rio de Janeiro, Brasil (Remote)
04.2024 - 04.2025
- Led the overall Front-end architecture for the company, applying best practices and creating reusable libraries.
- Led and implemented the development of a customizable menu system using Next.js/React.js, ensuring flexibility and scalability.
- Led and developed a centralized admin system for managing all company products, utilizing technologies such as NX, microfrontends, Dynamic Federation, and Angular 18.
Senior Frontend Engineer
Tagme
Rio de Janeiro, Rio de Janeiro, Brasil (Remote)
11.2023 - 04.2025
- Led the maintenance and evolution of a custom menu system used across multiple restaurant operations.
- Developed new features and improvements for the Admin platform, enabling efficient menu configuration and management.
- Worked with Angular, React.js/Next.js, and Tailwind CSS to deliver scalable and high-quality front-end solutions.
Senior Frontend Engineer
Skeelo
São Paulo (Remote)
01.2022 - 10.2023
- Contributed to the development of multiple web projects within a literary and educational company, working across a wide range of technologies and product fronts.
- Maintained and enhanced a CMS built with Vue.js 2.0, ensuring stability and performance for editorial workflows.
- Developed landing pages for Ebooks, Audiobooks, and Minibooks using Angular 10, improving marketing reach and conversion.
- Built the new institutional website using Next.js/React, modernizing the company’s digital presence.
- Customized and extended the Skeelo store on Shopify with JavaScript and Sass, and later led a full rewrite in Next.js with Mercado Pago integration.
- Developed the new React-based Webapp, replicating key Skeelo application features — including bookshelves and audiobook access — directly in the browser.
- Contributed to the ongoing development of a web reader, enabling users to read books directly on desktop.
- Collaborated with the Tech Lead in defining Front-end architecture and best practices for multiple projects.
- Participated in mentoring interns and junior developers, supporting growth and knowledge-sharing within the team.
Senior Frontend Engineer
Zup Innovation
São Paulo, São Paulo, Brasil (Remote)
07.2021 - 12.2021
- Worked in the Pj Emps squad within the Insurance tribe at Itaú Bank, contributing to high-impact financial and operational systems.
- Developed the end-to-end workflow for insurance consultants, covering integration, renewal, retention, delinquency, and core operational processes.
- Built reporting interfaces and scheduling tools to enhance consultant productivity and decision-making.
- Worked in a monorepo architecture using the Nx framework to support scalability and modular development.
- Developed primarily in Angular, with additional components built in React and Web Components.
- Implemented comprehensive unit tests using Jest to ensure code quality and reliability.
- Managed source control using the Gitflow workflow.
- Configured CI/CD pipelines for build and deployment processes on AWS.
Senior Software Engineer
Prevent Senior
São Paulo, São Paulo, Brasil (Remote)
04.2021 - 07.2021
- Worked at Prevent Senior as part of a team responsible for multiple business fronts, including Shift, Accreditation, Corporate, and Shielding.
- Contributed to the maintenance and evolution of legacy systems built with JSP (JavaServer Pages), incorporating jQuery solutions on the Front-end when needed.
- Participated in the migration of key project segments to Angular 4+, supporting the modernization and improvement of the Front-end experience.
Senior Software Engineer
Comexport
São Paulo
11.2020 - 04.2021
- Worked in the team responsible for Comexport’s main product, managing the entire trading workflow and supporting core business operations.
- Developed extensively with Angular, starting from version 4 and later contributing to the migration to Angular 10, ensuring a modern, stable, and efficient user experience.
Senior Software Engineer
Digesto
São Paulo, São Paulo, Brasil
06.2019 - 08.2020
- Contributed to both Frontend (Angular) and Backend (Python/Flask) development, maintaining a strong technical presence while supporting cross-functional initiatives.
- Participated in major government-related initiatives such as STF Case Law, developing the entire Front-end platform for simple and advanced search.
- Contributed to the STF CMS module, an internal administrative system used for content and case management.
- Worked with MySQL and PostgreSQL for data consumption and validation.
- Built automated end-to-end tests using Cypress, improving reliability and regression coverage.
- Provided customer support for platform users, helping maintain overall product quality and satisfaction.
Software Engineer
Digesto
São Paulo
01.2019 - 05.2019
- Worked on the team responsible for supporting, customizing, and evolving the company’s flagship product—Digesto Procedural Information, a platform used by lawyers, law firms, and enterprise clients to track, distribute, and monitor legal processes.
- Developed Front-end features using Angular 7, 8, and 9, HTML5, Sass, and Angular Material, improving usability and performance across core workflows.
- Contributed to backend development using Python, Flask, and Flask Potion, supporting API integrations and administrative modules.
Frontend Engineer
Cedro Technologies
São Paulo
09.2018 - 01.2019
- Contributed to the development of multiple projects in the financial sector, supporting key platforms and internal systems.
- Developed dynamic and responsive user interfaces using Angular 6, ensuring usability and performance for financial operations.
- Implemented Front-end styling with Sass, delivering modern, consistent, and visually appealing layouts.
- Collaborated on Backend development using .NET Core, helping implement business logic and critical functionalities.
- Worked with a MySQL database for data persistence, modeling, and retrieval across project features.
- Used Git for source control, enabling efficient collaboration and version tracking across teams.
Full Stack Engineer
Grupo Sym
Divinópolis, Minas Gerais, Brasil
04.2018 - 09.2018
- Developed Front-end features for a medical support system using AngularJS, improving workflows for healthcare professionals.
- Implemented interface styling with Sass, ensuring a consistent, modern, and user-friendly visual experience.
- Contributed to Backend functionalities using .NET Core, supporting essential operations and system stability.
- Managed and tracked source code changes using SVN, maintaining project organization and development continuity.
- Solved a key technical challenge by customizing and implementing page-break functionality in the text editor — similar to Microsoft Word — to enhance usability for medical professionals who relied heavily on document formatting.
Full Stack Engineer
Find
Divinópolis e Região, Brasil
01.2015 - 03.2018
- Worked as a Full Stack Engineer on a student-focused social network, contributing to end-to-end development of the platform.
- Built Front-end interfaces using AngularJS, leveraging Gulp for workflow automation and LESS for styling.
- Developed Backend services with Node.js, supporting authentication, data processing, and platform features.
- Utilized MongoDB as the NoSQL database for scalable and flexible data storage.
- Integrated Firebase to enable real-time user notifications across the platform.
- Implemented Socket.IO to build the platform’s real-time chat experience.
- Applied Google Analytics to track user behavior and gather insights on engagement.
- Managed source control using Git, supporting collaborative development and version tracking.
Education
No Degree - ReactJS
10.2022
Bachelor of Science - Mechatronics, Robotics and Control and Automation Engineering
12.2017
Skills
- Reactjs
- Typescript
- Nextjs
- Angular
- Microfrontends
- NX monorepo
Certification
- Fast and functional prototypes with Figma
- Creative Coding: Create Visual Works with JavaScript
- Fundamentals in Go
- Functional and Reactive Javascript
- Desktop Apps with Electron
Languages
Portuguese (Native or Bilingual)
English (Professional Working)
Timeline
Senior Frontend Engineer - Freelance
04.2025 - Current
Lead Frontend Engineer - Tagme
04.2024 - 04.2025
Senior Frontend Engineer - Tagme
11.2023 - 04.2025
Senior Frontend Engineer - Skeelo
01.2022 - 10.2023
Senior Frontend Engineer - Zup Innovation
07.2021 - 12.2021
Senior Software Engineer - Prevent Senior
04.2021 - 07.2021
Senior Software Engineer - Comexport
11.2020 - 04.2021
Senior Software Engineer - Digesto
06.2019 - 08.2020
Software Engineer - Digesto
01.2019 - 05.2019
Frontend Engineer - Cedro Technologies
09.2018 - 01.2019
Full Stack Engineer - Grupo Sym
04.2018 - 09.2018
Full Stack Engineer - Find
01.2015 - 03.2018
Rocketseat - No Degree, ReactJS
Faculdade Pitagoras - Bachelor of Science, Mechatronics, Robotics and Control and Automation Engineering
Honors-Awards
1st Place – Programming Marathon (2013)
1st Place – Programming Marathon (2014)
1st Place – Programming Marathon (2016)