Barbara Araujo de Sousa Senior Full-Stack Engineer | React · TypeScript ·

Desenvolvedor de front-end

Multiledgers

Jan 2025 - Nov 2025 (11 months)

As a Frontend Developer at Multiledgers, I help build and maintain SaaS platforms powered by blockchain technology. I’m responsible for developing high-quality user interfaces using React, Next.js, Tailwind CSS, and React Flow, always with a focus on performance, responsiveness, and maintainability.

I work closely with cross-functional teams to transform complex business logic into intuitive, scalable interfaces. I also collaborate on integrating the frontend with our NestJS backend and contribute to UI architecture decisions that support long-term growth and usability.

At Multiledgers, I’ve been part of a fast-paced and innovation-driven environment, helping to deliver tech solutions that empower businesses in sustain

Full stack engineer

Multiledgers

Jan 2025 - Nov 2025 (11 months)

As a Frontend Developer at Multiledgers, I help build and maintain SaaS platforms powered by blockchain technology. I’m responsible for developing high-quality user interfaces using React, Next.js, Tailwind CSS, and React Flow, always with a focus on performance, responsiveness, and maintainability. I work closely with cross-functional teams to transform complex business logic into intuitive, scalable interfaces. I also collaborate on integrating the frontend with our NestJS backend and contribute to UI architecture decisions that support long-term growth and usability. At Multiledgers, I’ve been part of a fast-paced and innovation-driven environment, helping to deliver tech solutions that empower businesses in sustainability and infrastruc

Engenheiro de software

Metrópoles

Feb 2023 - Sep 2024 (1 year 8 months)

As a Full Stack Developer at Metropoles, one of Brazil's prominent communication channels, I lead the development of their website and mobile app. My role involves optimizing application performance, implementing upgrades, and introducing new features to enhance the overall user experience. Leveraging technologies such as Cypress, Typescript, Next.js, React, React Native, GraphQL, and WordPress, I contribute to the continuous evolution of Metropoles' digital platforms. My commitment lies in ensuring a seamless and engaging experience for users, aligning with the organization's mission to deliver high-quality content and stay at the forefront of media innovation in Brazil.

Engenheiro de software

BairesDev

Dec 2022 - Feb 2023 (3 months)

During my tenure as a Quality Analyst at Bairesdev, I played a pivotal role in testing a web application designed for the pharmaceutical industry, focusing on enhancing medical development processes. Additionally, I contributed to the project's user interface using Svelte. This experience allowed me to strengthen my skills in quality assurance and broaden my expertise in diverse technologies, including Cypress and Typescript.

Frontend developer

CWI Software

Aug 2021 - Dec 2022 (1 year 5 months)

As a Front-End Software Engineer at CWI Software, I contributed significantly to the development of web and mobile applications for a major supermarket chain, GPA. My responsibilities included building and optimizing the online market's catalog list and checkout features, involving seamless integration with a Java API. Working within an agile Scrum environment, I utilized technologies such as Redux, React.js, and React Native to deliver robust and user-friendly solutions, ensuring a streamlined shopping experience for online customers.

Mobile Engineer

Collegia

Feb 2021 - Aug 2021 (7 months)

In my role as a Mobile Engineer at Collegia, I led the development of a Flutter application for an innovative auto-enrollment pension startup based in the UK. Responsible for designing and building the system, I also played a key role in developing functionalities for the web application using React and Typescript. This experience allowed me to leverage my expertise in diverse technologies to contribute to the success of a forward-thinking financial technology project.

Software engineer

CooperSystem

Mar 2019 - Feb 2021 (2 years)

As a Software Engineer at Coopersystem, I actively contributed to building applications for government projects, with a notable focus on an internal initiative aimed at tracking employees' daily work hours. My responsibilities extended to the development of end-to-end tests using Cypress for various applications. Utilizing a technology stack that included React, Redux, React Native, Antd, Bootstrap, and Cypress, I played a vital role in delivering reliable and efficient solutions that met the requirements of diverse projects within the government sector.

Desenvolvedor front-end

ília

May 2018 - Jan 2019 (9 months)

D

Desenvolvedor front-end

Departamento Técnico Cientifico da Policia Federal

Sep 2017 - May 2018 (9 months)

As a Front-End Software Engineer at the Department of Scientific and Technical of the Federal Police, I played a pivotal role in the technological advancement of their systems. Initially working with vanilla JavaScript and jQuery, I contributed to the migration of systems to utilize Vue.js. This transition aimed at enhancing the efficiency and functionality of critical systems within the Federal Police, showcasing my adaptability and proficiency in modern front-end technologies.

Barbara Araujo de Sousa

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Barbara Araujo de Sousa

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