Bruno Guidolim
Senior IOS Software Engineer at Trade Republic
Hamburg, Germany
Summary
🤩
Rockstar🎓
Top SchoolBruno Guidolim is a Senior iOS Software Engineer based in Hamburg with 12 years of software experience and over five years focused on iOS architecture, design and delivery across B2C and B2B products. He has consistently taken senior technical roles at companies like Trade Republic, Ruuky and Haiilo, bringing pragmatic leadership and a hands-on approach to complex mobile features. An active open-source contributor, Bruno improved messaging UX in MessageKit (adding LinkPreview support and robust gesture/layout fixes) and hardened PhoneNumberKit and fastlane integrations, showing attention to cross-team quality and automation. He combines system-level thinking with UI polish, often refactoring for safety and performance while shipping user-facing improvements. Colleagues describe him as a natural problem solver who learns quickly on the job and mentors teams through ambiguous technical challenges. His background spans mobile startups to fintech, with a history of bridging product needs and engineering execution.
12 years of coding experience
10 years of employment as a software developer
Tecnólogo em Desenvolvimento de Jogos Digitais, Análise de Sistemas e Tecnologia da Informação, Tecnólogo em Desenvolvimento de Jogos Digitais, Análise de Sistemas e Tecnologia da Informação at Faculdade de Tecnologia de São Paulo
English, Portuguese
Stackoverflow
367reputation
6kreached
9answers
1question
Github Skills (27)
debug10
ios10
fastlane10
ui-design10
ruby10
uid10
automation10
front-end-development10
messagekit10
mobile10
swift10
automations10
messaging9
google-apps9
chat9
Programming languages (8)
Github contributions (5)
marmelroy/PhoneNumberKit
Mar 2022 - Jan 2023
A Swift framework for parsing, formatting and validating international phone numbers. Inspired by Google's libphonenumber.
Role in this project:
Mobile Developer
Mobile DeveloperContributions:48 releases, 22 reviews, 48 commits in 10 months
Contributions summary:Bruno primarily contributed to the maintenance and improvement of the iOS-specific aspects of the PhoneNumberKit framework. Their work involved fixing bugs related to the UI, specifically the flag display, and refactoring code to enhance the handling of phone number formatting. They also addressed potential thread explosions and improved code safety in the framework. Moreover, the user updated the metadata parsing and added a new error for ambiguous phone numbers.
contactsphone-numbersiosparserswift-framework
fastlane/fastlane
Feb 2018 - Dec 2021
🚀 The easiest way to automate building and releasing your iOS and Android apps
Role in this project:Mobile Developer (iOS) & Automation Engineer
Mobile Developer (iOS) & Automation EngineerContributions:9 commits, 14 PRs, 61 comments in 3 years 10 months
Contributions summary:Bruno primarily contributed to the `fastlane` project, focusing on iOS mobile development and automation. Their work involved modifying the `gym` action to compress and export dSYM files, setting keychain paths for decoding provisioning profiles. The user also added functionality for the swiftlint action, adding a path option for linting. Furthermore, they have contributed to the swiftlint action, and included an option to format.
fastlaneandroid-appsappsdeploymentreact-native
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