Leandro Vieira

Developed an application is used to define the flow of communication between the B2C software and tens of millions of users and analyze the data coming from those interactions.

It consists of a responsive and animated UI that displays and manages four entities (organization, client, application, and dashboard). It allows editing, filtering, sorting, bookmarking, cloning, and loading of external applications to further display and manage instances of those entities.

The front-end was done by two front-end engineers in close communication with the back end, product, design, and QA teams.

I designed the architecture and developed the UI, engaged through the project's lifecycle.

Two React-based interactive articles, adapting academic papers from the American Enterprise Institute. I proposed a design based on the original material and developed visualizations sensitive to the user scrolling through the page and other interactions. They contain a few animated charts and maps, alternating with texts to be read.

Worked with an application to manage operations in one of the top US-based electrical companies, with more than 6,000 employees.

It manages hundreds of thousands of operations with a complex structure of clients, users, projects, packages, orders, reports, and other entities with different degrees of interrelation.

The platform allows different modes to visualize the entities, such as tables and cards, in a fully responsive design where fields can be edited on the spot.

The client application is connected to a back end written in .NET through REST APIs.

I designed the front-end architecture, built the UI, and wrote the tests.

Created a method for importing data from Wikimedia, Wikipedia, and Wikidata and exporting it as JSON files.

It's beneficial to generate small or medium curated data sets from simple names, words, and wiki IDs.

Data about places associated with the selected items is loaded independently, with geographical coordinates, on maps.

Developed an online custom world-map maker with 87 projections to choose from, various datasets, and custom options. It allows to select a dataset, toggle the layer's visibility, and change colors. The result can be exported as an SVG or PNG image.

Built a web app as a personal project where I can extract fragments from text, such as emails, phone numbers, URLs, words, and custom expressions.

The result can be sorted and customized before being copied to a clipboard.

Created a way to visualize hundreds of thousands of entities from Wikipedia and Wikidata in a visual and chronological fashion.

Each item can be used as the reference point of a visualization displaying other related items, with taxonomies automatically deducted from the available data.