Tiso Alvarez Puccinelli

As Lead Front-End Developer, I led the Design Systems team responsible for cross-functional changes like internationalization, accessibility, mobile, and app shell updates. I also oversaw complex front-end projects including a WYSIWYG web editor, UI overhauls, and migrating the codebase from JavaScript to TypeScript.

As a Senior Front-end Developer, I contributed to building an all-in-one community platform, taking ownership of new features like automated workflows, theme customization, dark mode, and internationalization. I also improved developer experience through automated checks, dependency upgrades, and enhancing component APIs.

I worked on a greenfield project to expand the company's product, collaborating with Product and Design to integrate new features and Design System components using React and TypeScript. I mentored junior developers and implemented new code quality standards in the CI pipeline, including static code analysis, type checking, unit testing, and test coverage tools.

I was responsible for improving user on-boarding services, implementing changes to the registration form that increased user conversion. I migrated existing pages to Next.js applications, adopting PagSeguro's new design and enabling independent deployment and code ownership. I also contributed to the company's Design System and revamped the E2E testing suite, reducing test and CI times while impro

I developed new external REST API features and implemented requirements from BACEN, participating in design and infrastructure decisions. I led the upgrade of the Node.js version for our monolithic service, which improved developer experience by enabling newer language features. I also collaborated with the front-end team to create new components and pages for a React dashboard, an open-source pro

I delivered applications and integrations for external clients using IBM Watson cognitive services, including creating and training conversational trees for chatbots. I was also responsible for developing and maintaining IBM's internal pages, ensuring adherence to design standards, internationalization, accessibility, and quality control. I developed internal tooling to identify common accessibili

Studied Computer Science at Universidade São Judas Tadeu from 2014 to 2015. Focused on core computer science principles and applications.

Pursued a Bachelor's degree in Information Technology at Fundação Armando Alvares Penteado from 2011 to 2013. Gained foundational knowledge in IT concepts and practices.