Louis Ian Silva dos Santos
@louisiansilvadossant
I build reliable cross-platform mobile products with Flutter and .NET MAUI.
What I'm looking for
I'm building a modular Flutter platform at Invillia that unifies multiple enterprise business systems, with feature-based packages, shared design systems, Bloc/Cubit state management, and scalable CI/CD decisions.
Previously at Asaas, I delivered mobile and REST API features for a fintech platform serving 500k+ SMEs, contributed to its Xamarin Forms-to-.NET MAUI migration, and monitored production issues with DataDog and Firebase. My QA background—from building test processes at Olga Ri to automating testing at GREat—shapes how I design for edge cases, reliability, and confident production releases across Android and iOS.
Experience
Work history, roles, and key accomplishments
Building a modular Flutter platform that consolidates multiple business systems for an enterprise client — one of the most architecturally complex mobile projects I've worked on.
– Architecting a feature-based package structure and shared design system used across independent product teams.
– Implementing modular routing and state management with Bloc/Cubit, enabling teams to integrate with minim
Asaas is one of Brazil's largest fintech platforms, serving 500k+ SMEs. As part of the mobile team, I delivered features and fixes across apps and REST APIs used by hundreds of thousands of active users daily.
– Developed new features, A/B tests, and bug fixes across mobile apps and backend APIs.
– Contributed to the Xamarin Forms → .NET MAUI migration, maintaining feature parity throughout.
– Re
Joined Asaas as an intern on the mobile team, working with .NET MAUI, C#, Xamarin, Grails, and MySQL. Contributed to feature development and participated in agile ceremonies. Promoted to junior full-stack role after 9 months based on ownership of key deliverables.
First QA hire at a mobile-first startup. Built the company's QA process from scratch.
– Created 100+ test cases covering the mobile app end-to-end.
– Automated 30+ regression tests with Flutter Integration Testing, cutting manual testing time significantly.
– Set up structured QA workflows integrating JIRA/Confluence into the agile cycle.
Sole mobile developer at a remote access and security SaaS. Owned the full mobile lifecycle independently — from architecture to App Store and Google Play release.
– Designed and built production Flutter apps for Android and iOS.
– Implemented Clean Architecture with MVVM, Bloc/MobX state management, and Firebase/Crashlytics.
– Wrote and maintained unit, widget, and integration tests throughout.
2.5 years at GREat, a software research lab at UFC, working across web, mobile, and API testing for real projects.
– Automated test cases using Selenium (Java), Flutter integration tests, and Robot Framework.
– Built Processometer, a custom Python tool for performance testing.
– Conducted security testing with Nmap, Wireshark, HTTPCanary, and Drozer.
– Maintained CI/CD pipelines for automated QA
Education
Degrees, certifications, and relevant coursework
Federal University of Ceara
Bachelor's degree in Computer Science, Computer Science
2019 - 2023
Federal University of Ceara
Bachelor's degree, Computer Science
2019 - 2023
Bachelor's degree in Computer Science from the Federal University of Ceara, completed in 2023.
Availability
Location
Authorized to work in
Job categories
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