Pedro Kirstein

With over 5 years of hands-on experience in mobile development, I’ve built and led cross-platform projects using Flutter, Swift, Kotlin, and React Native. My work spans fintech, healthtech, and automotive, including apps that serve millions. I bring a mix of adaptability, strong communication, and a proactive mindset, qualities that help me navigate fast-moving teams and keep the user experience at the core of every decision.

SóCarrão.com – Senior Mobile Engineer

• Led the mobile development from scratch using Flutter.
• Designed and implemented the entire app architecture and release pipeline
• Integrated Google Analytics and Firebase Crashlytics, reducing crash rates by over 98%
• Achieved 90% feature coverage with unit and E2E testing
• Supported a platform with over 100,000 daily users

2Mundos – Senior Mobile Engineer

• Contributed to two international projects: Datewise (Swift) and OccDocOne (Flutter).
• Refactored legacy code, improving performance by 40%
• Delivered features under tight deadlines without sacrificing quality
• Implemented localization for multilingual user support

BrasilCard – Mobile Engineer

• Developed features for a banking app with over 3 million users using Flutter.
• Boosted engagement by 8% through push notifications and in-app messaging
• Reduced error reports by 45% using Firebase Crashlytics
• Built E2E test coverage for 30% of the app, reducing QA time

Dr.Cash – Mobile Engineer

• Built a financial health app from the ground up with Flutter.
• Implemented a modular architecture enabling fast feature rollout
• Achieved 85%+ test coverage through robust unit testing
• Served over 100,000 monthly active users

Tunts.Rocks – Mobile Engineer

• Worked on two fintech apps (WhatsMoney and NovuCard) using Flutter.
• Delivered key features like transaction filters and improved notifications
• Reduced failure rates by 30% through bug fixing and performance improvements
• Implemented unit tests to ensure business logic reliability

Software Engineer - PUCPR