Ronan Rodrigo Nunes

Principal Software Engineer

Lead Platform Engineering initiatives that scale PicPay's mobile stack across iOS, Android, and React Native.

• Architected and deployed a Go microservice that converts mobile logs, traces, and metrics into OpenTelemetry Protocol, cutting cross-team troubleshooting time across the organization.
• Engineered a low-code platform that lets non-engineers deploy mobile feature updates, reducing time-to-market from release-bound cycles to on-demand shipping.
• Created a React Native platform adopted across product squads, unifying native module access between iOS and Android.
• Authored RFCs on mobile productivity and observability that became the organization-wide reference for mobile app development.
• Led cross-functional task forces on mobile delivery bottlenecks and mentored senior engineers on architecture and career growth.
• Advised business units on cross-platform architecture decisions spanning iOS, Android, and React Native.

Software Engineer

Designed and scaled the Safety Media Platform's audio recording framework, a critical global safety feature for millions of riders and drivers.

• Designed and shipped the Safety Media Platform's audio recording framework in Swift and AVFoundation, handling peak global load for millions of riders and drivers.
• Built a reusable audio framework adopted by downstream Safety audio features across the organization.
• Delivered cross-stack architecture spanning Uber's Safety organization, ensuring high availability and robust performance under peak global loads.
• Partnered with Product Managers and Designers to deliver core Safety user experiences from concept to rollout.
• Mentored teammates, reviewed technical designs and code, and led sessions on design patterns and testing methodologies.
• Led training sessions for new hires and interviewed software engineering candidates.

Software Engineer

Worked on the Member Get Member (MGM) and Authorizations teams, shipping iOS features end-to-end from conception to production data analysis.

• Shipped the Virtual Card feature on the Nubank iOS app using XCTest, TDD, and Clean Architecture
• Built Member Get Member (MGM) flows on iOS from conception to production data analysis, increasing user engagement and referral conversions
• Integrated Hypermedia APIs across the iOS app and backend, ensuring resilient authorization flows

Software Engineer

Shipped iOS applications with Swift using agile management and direct customer relationships on two main projects: an e-commerce app for Carrefour grocery stores and an audio streaming app for CBN radios.

• Delivered the Carrefour grocery e-commerce iOS app in Swift with CI via Fastlane
• Built the CBN radios audio streaming iOS app in Swift, integrating REST APIs and handling audio playback at scale

Software Developer

Full-stack developer on a sales-rep solution, working across web (frontend and backend) and mobile.

• Shipped the order profitability feature end-to-end across mobile, backend, and frontend using Xamarin/C#, Django/Python, and JavaScript
• Contributed to Android and iOS app development on a shared Xamarin codebase

Software Developer

Web, iOS and macOS developer programming in Ruby on Rails, Swift and CoffeeScript, with MongoDB as the primary store.

• Developed web, iOS, and macOS applications using Ruby on Rails, Swift, CoffeeScript, and MongoDB
• Built a productivity measurement solution for macOS based on machine usage patterns

Software Developer

First professional contact with Ruby on Rails at a Scrum consultancy, contributing to two web apps: a social network for events (twygo.com) and a collaborative network for project management (artia.com).

• Developed web applications using Ruby on Rails, MySQL, Git, and Scrum methodologies, contributing to products such as twygo.com and artia.com

Manager

Ran all departments of a Brazilian bar: promotions, music events, publicity, social media, bar, kitchen. A hands-on lesson in communication and small business.

Software Developer

First software developer job, building a Business Intelligence feature for an online document management product used by governments and large companies.

Technical Software Support

Technical support on Datasul EMS, WebDESK and ByYou. A formative role where I worked on communication and confidence after starting out shy. Datasul was purchased by TOTVS in 2008.