Hi, I'm

Lucas Mauricio

Front-end Developer

Front-end Developer with 3+ years of experience in React and TypeScript applications, working on high-complexity projects including SaaS products, government systems, and international projects. Experienced in accessibility, automated testing, CI/CD, Design Systems, and integration with REST APIs and WebSockets. Collaborative work with multidisciplinary teams with a focus on quality, scalability, and user experience.

View Resume

Work Experience

Front-End Developer

CPQD
Campinas-SP (Hybrid)
Dec 2022 - Present
  • Developed a real-time demo interface for a voice biometrics product using React, WebSockets, and ApexCharts, enabling live data visualization and accelerating technical validation with clients and stakeholders.
  • Worked on the INSPIRE project, a government initiative in partnership with the Brazilian Ministry of Management and Innovation (MGI), developing a high-performance and accessible news portal that met strict technical and compliance requirements.
  • Contributed to the evolution of a proprietary Design System, standardizing reusable components and increasing team productivity while ensuring consistency between UX and Front-end development.
  • Refactored a legacy license server interface by migrating class-based components to functional components and converting JavaScript to TypeScript, significantly improving code maintainability, readability, and scalability.
  • Integrated RESTful APIs by consuming technical documentation and collaborating closely with backend teams to ensure data consistency, performance, and alignment with product requirements.
  • Implemented automated tests in React applications using Jest, Vitest, and React Testing Library, increasing application reliability and test coverage across critical user flows.
  • Edited and maintained Jenkins CI/CD pipelines for Front-end applications, automating build, test, and deployment processes and improving delivery quality.
  • Acted as co-host of the Front-end Chapter, organizing weekly meetings, presenting technical topics, and fostering knowledge sharing across the Front-end team.

Technologies

React, Next.js, TypeScript, TanStack Query, TanStack Router, SCSS, React Hook Form, Jest, Vitest, React Testing Library, MirageJS, i18next, WebSockets, Git, Jenkins

Front-End Developer

MMarketplaces
Remote (Freelance)
Dec 2023 - Apr 2024
  • Led the modernization of the application by migrating the system to React, improving maintainability and preparing the codebase for future scalability.
  • Implemented basic SEO optimizations (semantic HTML, metadata, performance improvements), resulting in approximately 20% increase in site visibility.
  • Translated UI designs into pixel-perfect React and Next.js interfaces, ensuring accurate spacing, typography, and layout consistency across desktop, tablet, and mobile devices.
  • Developed a new interactive dashboard using ApexCharts, enhancing data visualization and enabling better operational insights for users.
  • Designed and implemented a fully responsive, mobile-first interface aligned with the company's visual identity, significantly improving usability and user experience.
  • Optimized integrations with the Bling API, reducing application load time by approximately 90% and greatly enhancing performance.
  • Developed a chat feature integrated with the Mercado Livre API, enabling more efficient and centralized customer support.

Technologies

React, TypeScript, Redux, React Router, Styled Components, Vite, Firebase, GitHub, Mercado Livre API, Bling API

Front-End Developer

HIIT & Tabata
Remote (Remote)
Jul 2022 - Apr 2023
  • Deepened expertise in front-end technologies such as React, JavaScript, CSS, and MUI (Material UI).
  • Developed responsive and accessible interfaces focused on the experience of trainers.
  • Contributed directly to enhancing the user experience by applying usability and design best practices.

Technologies

React, JavaScript, CSS, MUI (Material UI)

Skills & Technologies

Frontend

ReactNext.jsTypeScriptJavaScriptTanStack QueryTanStack RouterReact RouterReduxi18nextWebSockets

Styling

Tailwind CSSSCSS/SASSStyled ComponentsCSS-in-JSMUI (Material UI)Responsive DesignMobile-First

Testing

JestVitestReact Testing LibraryPlayWrightUnit TestingIntegration Testing

Tools & Others

GitGitHubMirageJSJenkinsViteFigmaRESTful APIsFirebaseApexChartsCI/CD

Projects & Tools

Coming soon...

This section will showcase tools and side projects I'm developing.

Stay tuned

Get In Touch

I'm currently open to new opportunities. Whether you have a question or just want to say hi, feel free to reach out!

WhatsApp

+55 (19) 99884-6691

Social

GitHub
LinkedIn