Senior Mobile Engineer · Brazil
Kelven Galvão
Senior mobile engineer with 7+ years of experience building Flutter applications for global consumer products across e-commerce, fintech, mobility and food delivery. Delivered products reaching 50M+ users, with a focus on scalable architecture, performance, testing and data-informed user experience.
Selected work
50M+
customers served · Nubank
Card lifecycle experiences at Nubank — credit, debit, Ultravioleta and virtual — across three countries.
90%
fewer crashes · SKIMS
An asset-caching refactor took the crash rate on older Android devices from 10% to 1%, in time for the SKIMS x NIKE drop.
75%
faster CI/CD · SKIMS
Cut pipeline time by three quarters, saving thousands of dollars and hundreds of engineering hours a year.
10%→80%
test coverage · iFood
Established a testing culture that produced 99.9% crash-free sessions.
Projects
Experience
- Jul 2025 — PresentX-Team InternationalSenior Software Engineer · SKIMS
- Jul 2024 — PresentR-S Digital Transformation Ventures UGLead Software Engineer · SYNPLI by Veigel GmbH & Co. KG
- Jul 2023 — Dec 2024CrescentSenior Software Engineer
- May 2022 — Jul 2023YaaKSenior Software Engineer
- May 2021 — Apr 2022NubankSenior Software Engineer
- Feb 2021 — Jul 2021iFoodSenior Software Engineer
- 2019 — 2021Blu by BS2Software Engineer
Writing
- Cutting a crash rate from 10% to 1%
What asset caching has to do with release stability on older Android devices, and why the fix was not in the cache.
Get in touch
Open to senior and lead mobile engineering work. The fastest way to reach me is email.