MCMatheus Casavechia
@matheuscasavechia
Senior Software Engineer and Mobile Tech Lead specializing in React Native and TypeScript.
BrazilWhat I'm looking for
I am a Senior Software Engineer and Mobile Tech Lead with deep expertise in React Native, TypeScript, and the React ecosystem, having delivered high-performance mobile applications across fintech, healthcare, and enterprise domains.
I have led mobile teams, defined scalable architectures, established technical standards and Gitflow practices, and owned release pipelines for TestFlight, App Store, and Play Store while contributing full-stack support to unblock delivery.
My practice emphasizes clean code, testing (unit, integration, E2E), performance optimization, offline-first persistence (RealmDB, WatermelonDB, SQLite, MMKV), and strong cross-functional collaboration to drive product impact and long-term maintainability.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Somewhere
Mar 2025 - Present (11 months)
Acted as mobile specialist and led the mobile team to design a scalable React Native architecture, improving performance, maintainability, and release reliability across iOS and Android.
Senior Software Engineer
Upstart13
Aug 2024 - Mar 2025 (7 months)
Led mobile team to refactor a legacy native app into a hybrid React Native solution, reducing maintenance complexity and improving cross-platform stability and performance.
Senior Mobile Engineer
Deal
Jan 2023 - Aug 2024 (1 year 7 months)
Led the mobile team and built the React Native app from scratch using TypeScript and WatermelonDB, delivering a modular, high-performance codebase that reduced crashes and accelerated feature delivery.
Developed and maintained core React Native features at scale, integrated GraphQL APIs, and led adoption of automated testing, improving stability and deployment confidence for millions of users.
Junior React Native Developer
RCKY Informática Ltda
Jun 2020 - Sep 2021 (1 year 3 months)
Contributed to React Native app development, integrated Mercado Pago QR payments, implemented offline-first behavior, and improved UI/UX and performance for sales features.
Front-End Software Engineer
Safra
Jan 2019 - May 2020 (1 year 4 months)
Developed and maintained a legal-entity account opening platform across web and mobile, owning SafraPay Extract features and delivering secure, responsive onboarding experiences.
Education
Degrees, certifications, and relevant coursework
CUCentro Universitário Ítalo Brasileiro - UniÍtalo
Postgraduate, IT Project Management
2024 - 2024
Postgraduate coursework in IT Project Management completed in 2024 focused on project governance and delivery practices.
FPFatec São Paulo
Technologist, Analysis and Systems Development
2019 - 2019
Technologist degree in Analysis and Systems Development completed in 2019 with focus on software development and systems analysis.
FIAM-FAAM
Technologist, Multimedia Production
2018 - 2018
Technologist degree in Multimedia Production completed in 2018 covering multimedia content creation and production techniques.
Indegwon High School
High School, Secondary Education
2015 - 2015
Attended high school in South Korea during the 1st and 2nd year of secondary education in 2015.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
Skills
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