Rilton Franzone Email & Phone Number

São José Dos Campos, SP, BR

San Francisco, California, United States

San Francisco, California, United States

• Cut work from months to days by designing the incremental adoption of Next.js for the Ruby on Rails migration to React, shipping iteratively and constantly.
• Reduced the response time of critical APIs by up to 80% by optimizing queries and introducing a queue system for heavy work.
• Shaved off +50% of the web app bundle size through lazy loading and package optimization, resulting in improved Core Web Vitals (SEO).
• Executed partnerships with huge academic portals, including arxiv.org, driving traffic growth and expanding reach to 25M monthly visitors.
• Together, all that translated to a +644% increase in monthly active users.
• Drove a seamless migration from MongoDB to PostgreSQL with close-to-zero downtime; reduced infrastructure costs by 65% while enhancing data retrieval speeds.

New York City, United States

• Engineered a scheduled trip system from map integration and geolocation tracking with native SDKs, down to GraphQL APIs and push notifications; impacting +6K drivers in NYC.
• Improved auth security and efficiency by implementing Single Sign-On (SSO) and a new onboarding process, reducing friction and increasing driver signups.
• Created an internal library of reusable and testable components, optimizing the development process and ensuring long-term maintainability for both driver and rider apps.

San Francisco, California, United States

• Participated in the development of a lunch-matching feature that scheduled over 100K lunches in 6 different countries.
• Designed and led the system migration from PHP to Node.js and Next.js, improving page load times and various SEO metrics.

Mexico City, Mexico

• Led a team of 4 engineers in the development of a mobile warehouse system used by +90K employees; worked closely with the product manager to gather requirements and translate them into actionable engineering tasks.
• Crafted elegant and testable UI components used by multiple teams across various applications, including those for AB InBev and Soriana, potentially reaching over 200K users.

Maceió, Brazil (Remote)

• Led a project partnership with one of the largest accounting companies in Rio de Janeiro, working closely with stakeholders and designers to understand feature requirements and translate them into reliable data models.
• Developed high-quality, responsive user interfaces using React, Ant Design, and SASS, ensuring a seamless UX across all devices; devised robust NestJS APIs following OOP principles.
• Mentored and guided new engineers through their onboarding process, providing support and knowledge transfer to speed up their productivity within the team.

Toronto, Ontario, Canada

• Recreated the company website with Gatsby (SSG) and other best practices, which resulted in a 35% increase in SEO metrics and a blazingly fast website.
• Implemented row-level security policies in PostgreSQL and documented the whole process to enrich the company's knowledge.
• Played a key role in the development of the MVP, building important features from the backend to the frontend.