Tiso Alvarez Puccinelli
Verified Expert in Engineering
Design Systems Developer
São Paulo - State of São Paulo, Brazil
Toptal member since June 29, 2021
Tiso is a software engineer with over five years of experience and an emphasis on front-end development. At IBM, he delivered applications using IBM Watson cognitive services, creating conversational trees for chatbots, and built internal pages with IBM's high design and accessibility standards. He improved reliability for another client by revamping the E2E testing suite and migrating web applications to React, transforming them into scalable products.
Portfolio
Experience
- React - 8 years
- Node.js - 8 years
- JavaScript - 8 years
- Unit Testing - 6 years
- Design Systems - 5 years
- E2E Testing - 4 years
- TypeScript - 3 years
- Next.js - 3 years
Preferred Environment
Linux, Storybook, TypeScript, Git
The most amazing...
...contribution I made increased user conversion and decreased support calls with improvements on a registration form UX.
Work Experience
Lead Front-end Engineer
Circle
- Championed the introduction of TypeScript, visual regression testing, and design systems to our platform to significantly improve the developer experience.
- Created a fully-fledged WYSIWYG editor for customizing the application theme.
- Migrated all text in the platform to translatable strings, allowing us to launch the product in multiple languages easily.
Senior Front-end Developer
Zemble
- Collaborated with product and design to find the best ways to introduce new features and design system components to our product.
- Introduced new code quality standards in our continuous integration pipeline through static code analysis, strict type checking, unit testing, and test coverage tools.
- Contributed to an open-source project we depended on, with a new feature that involved using path-finding algorithms and programmatically drawing SVG images.
Senior Front-end Developer
PagSeguro Digital
- Delivered improvements to our registration form that increased user conversion and decreased support calls.
- Revamped our E2E testing suite to a new framework, which decreased our test and CI times and improved reliability.
- Migrated existing pages to Next.js applications using PagSeguro's new look and feel.
- Added new components to the company's design system.
- Deployed and monitored applications on production environments.
Full-stack Developer
Pagar.me
- Developed, together with my team, new external REST API features and new requirements brought by the Brazilian Central Bank (BACEN).
- Took charge of upgrading the Node.js version of our monolithic service, a job that took weeks of testing and refactoring to ensure a safe deployment.
- Interfaced with the front-end team to create new components and pages in our new open-source React dashboard.
Full-stack Developer
IBM
- Delivered applications and integrations for external clients using IBM Watson cognitive services, which included creating and training conversational trees for chatbots.
- Developed IBM's internal pages within design and accessibility standards.
- Created internal tools to aid quality control of new pages.
Experience
Website Builder
https://circle.so/website-builderReact Flow Smart Edge
User Onboarding Services
https://cadastro.pagseguro.uol.com.br/Pilot Dashbord
Education
Bachelor's Degree in Computer Science
Universidade São Judas Tadeu - São Paulo, Brazil
Bachelor's Degree in Information Technology
Fundação Armando Alvares Penteado - São Paulo, Brazil
Skills
Libraries/APIs
React, Node.js, jQuery, Socket.IO
Tools
Git, Webpack, Sequelize, Mongoose, IBM Watson, Gulp, Rollup
Languages
JavaScript, CSS, HTML, TypeScript, SQL
Frameworks
Redux, Jest, Next.js, Express.js, Tailwind CSS, React Native
Paradigms
E2E Testing, Unit Testing, REST, Testing, Agile, Functional Programming, Scrum
Platforms
Linux, Docker
Storage
MongoDB, PostgreSQL
Other
Software Development, Storybook, ESLint, Visual Regression Testing, Code Review, Source Code Review, Design Systems, i18n, Chatbots, Drag & Drop, Team Leadership
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