Rodrigo Guzmán

Accomplished Senior Flutter Developer passionate about crafting scalable mobile architectures and delivering cross-platform application solutions. With over 8 years of experience, my professional journey spans global markets, including Dubai, Silicon Valley, Mexico, Southern Africa, and Canada. I have driven projects characterized by robust performance improvements and rapid development cycles.

Key Achievements:
-Team Leadership and Process Improvement: I founded the mobile development team at Jabu Logistics, growing it to over 10 developers. I pioneered a rigorous code review process that maintained a 100% retention rate and achieved zero critical bugs at launch.

-Scalability and User Growth: At Jabu Logistics, I architected features as internal packages for 5 applications, employing clean architecture principles. This approach reduced the time-to-market for new features by 50%. It supported a robust ecosystem that sustained a 200% monthly user increase for 8 consecutive months.

- Cost Reduction and Efficiency Gains: At Gemsdev, my leadership in optimizing mobile app operations cut server costs by 70% and enhanced system performance by 30%, thanks to advanced technology stacks and CI/CD pipelines.

I get excited about opportunities with projects that involve building scalable mobile architectures, integrating advanced technologies, and creating user-friendly applications.

  • Mobile development: Flutter (Expert), Android (Advanced), iOS (Intermediate)

    Programming languages: Dart, Kotlin, Java, Swift.

    Architectural Design: Clean Architecture. Riverpod, BloC, Provider, GetX, MVVM.

    Packages: Get-It, Crypto, DIO, Http, GraphQL, SQFlite, Hive, Shared Preferences, Isar, Sembast, Dartz, Freezed, Hive, Room, Retrofit, Glide, Picasso, LiveData, ViewModel, ExoPlayer, Jetpack, Espresso, JUnit, Mockito.

    Technologies: Firebase, Eleven Labs, DevTools, CI/CD with CodeMagic, GitHub, GitLab, Figma, Jira, Unit Testing, Sentry, Amplitude, Mixpanel.

  • Sr Staff Mobile Engineer - Fullstack Aplazo, CDMX | July 2024 - Present

    Senior Flutter | Android Developer. Phonon X, Silicon Valley | October 2023 - May 2024

    -Performed over 10 code reviews per week, improving code quality and stability.

    -Led the integration of AI functionalities using Eleven Labs for voice cloning, boosting operational capabilities.

    -Improved Android app performance by 20% within two months through strategic use of DevTools and Firebase Performance Monitoring, thereby improving user experience.

    -Employed advanced monitoring tools to diagnose and resolve performance bottlenecks, reducing load times by 40% and increasing app responsiveness, which contributed to a 20% uplift in active user base.

    -Conducted comprehensive load/stress testing and unit/integration/e2e testing, improving testing coverage by 50%, which decreased the number of critical issues by 60% and shortened the QA cycle by 20%.


    Mobile Tech Lead | Senior Flutter Developer Jabu Logistics, Southern Africa | November 2021 - October 2022

    -Founded and grew the mobile development team from zero to 10+ developers in two years, achieving and maintaining a 100% retention rate.

    -Implemented a rigorous pull request review process achieving a record of zero critical bugs at launch.

    -Authored extensive developer documentation accelerating project development by 10%.

    -Architected and implemented modular features as internal packages for 5 applications, utilizing clean architecture principles to ensure reusability across all apps, reducing time-to-market for new features by 50% and supporting a consistent 200% monthly user growth over an 8-month period.

    -Established and managed the CI/CD pipelines using CodeMagic from the ground up, which upheld high deployment standards from inception.

    -Mitigated risks related to data vulnerability by introducing robust encryption, effectively nullifying potential threats to user data privacy.

    Tech Lead | Senior Flutter & Android Developer Gemsdev, Mexico | April 2020 - November 2021

    -Served as a Technical Leader, coordinating efforts across mobile, web, and backend developer teams, successfully leading development and delivery of over three major mobile applications.

    -Reduced server costs by 70% and increased system performance by 30% for key clients by migrating server instances to Lambdas.

    -Decreased development cycle times by 50% through the strategic implementation of CI/CD pipelines.

    -Mentored 8+ developers, guiding them from junior to upper-mid level proficiency via live coding sessions and dedicated problem-solving support. This improved operational efficiency.

    Earlier Positions

    Senior Android developer | Mobile Tech Lead, Host a Pet | Mexico, January 2019 - April 2020

    Upper Intermediate Android Developer, Grin Scooters | Mexico, October 2018 - January 2019

    Intermediate Android Developer, Alpaca Software Development | Mexico, June 2017 - September 2018

    Junior Mobile Developer, Musar | Mexico, November 2016 - June 2017

    Junior Android Developer, Fermat | Dubai, August 2015 - November 2016

  • National Autonomous University of Mexico | UNAM

    Mathematics | 2010 - 2015