Cezar A.

Cezar A.

Lead JavaScript Developer

Rio de Janeiro, Brazil
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About Me

Cezar is a Lead JavaScript Developer proficient with the latest JavaScript standards and 10+ years of experience delivering web apps, dApps, desktop apps, browser extensions, and CLI tools on projects. He is familiar with processes to fill the gaps throughout the dev cycle to ensure solutions meet business and functional objectives - generating clean, scalable code that will not alter the presentation across supported browsers, operating systems, and devices.

Work history

UpStack
UpStack
Lead JavaScript Developer
2023 - Present (1 year)
Remote
  • Creating and developing innovative JavaScript-based software solutions for clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

everwave
everwave
Lead Developer
2021 - Present (3 years)
United States of America
  • Designed, developed, and implemented the everwave dApp from scratch using the client's product specification.

  • Built and executed a custom Next.js solution to handle Solana wallet authentications on the platform.

  • Managed processes to deliver the web app and dev management portal for everwave.

Freelance
Freelance
Senior Fullstack Developer
2020 - 2021 (1 year)
Remote
  • Acquired and interpreted business requirements, created functional specifications and determined appropriate technologies to deliver solutions.

  • Worked with clients to plan new features, gather requirements, suggest solutions, and support the app lifecycle on projects.

  • Maintained and modified solutions, approved changes by amending application documentation, producing detailed programming logic, and coding changes.

Brave Software
Brave Software
Senior Software Engineer
2016 - 2020 (4 years)
San Francisco, United States of America
  • Led processes to deliver a new React component library across several company products.

  • Worked on the internal pages for the desktop browser and executed Brave's native ad-blocker browser extension.

  • Oversaw processes to migrate the legacy frontend on the Electron app to Chromium - delivering a clean, crisp UI for users.

Freelance
Freelance
Web Developer
2012 - 2016 (4 years)
Brazil
  • Developed and shipped new websites, web applications, and e-commerce sites using modern web-based programming languages.

  • Supported website planning and deployment to maintain functioning, user-accessible web solutions for clients.

  • Identified and fixed complex bugs and defects on solutions.

Portfolio

Senior Developer - Brave Browser
Senior Developer - Brave Browser

Designed and developed a new tab page on the browser and implemented the extension for their native ad blocker and other browser-based internal pages and extensions - increasing the user base from 25k to 36M monthly users.

Core Maintainer - Frontend Interview Questions
Core Maintainer - Frontend Interview Questions

Designed and created a website using a static site generator, maintained community requests and feedback, curated issues, and collaborated with like-minded people around the world to deliver good software solutions.

Core Community Organizer and Lead Maintainer - React.js Globalization
Core Community Organizer and Lead Maintainer - React.js Globalization

Worked on the pt-br translation effort for React.js Globalization - handling governance/management, pull request reviews, issue triage, managing community requests, and ticketing tasks, which later influenced other projects to adopt the same governance practices. Led a group of 25 collaborators to reach 100% translated content.

Education

BSc. Computer Science
BSc. Computer Science
University of London
2012 - 2016 (4 years)