William Cisang
Staff Software Engineer at Nubank
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolWilliam Cisang is a Staff Software Engineer based in São Paulo with 9 years of hands-on experience building Android applications and mobile security features for major Brazilian fintechs. Currently at Nubank, he progressed from Senior to Lead and now Staff Engineer, focusing on mobile security and platform reliability. His background includes leading Android efforts at PagSeguro, Itaú and B2W, where he shaped authentication flows, super-app features and payments integrations. A former federated basketball player, he brings team leadership, competitive drive and resilience to engineering challenges. Active on GitHub as Wcisang, he blends deep Android expertise with a security-first mindset that strengthens large-scale consumer mobile products.
9 years of coding experience
10 years of employment as a software developer
Mackenzie Presbyterian University
Portuguese, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
sdk9
sentry9
flutter8
dart7
coroutines1
mvvm-architecture1
mvvm1
android1
architecture1
kotlin1
Programming languages (3)
Github contributions (5)
Wcisang/GistProject
Dec 2020 - Jan 2023
Contributions:1 PR, 12 pushes, 2 branches in 2 years 1 month
Wcisang/NextMovie
Sep 2016 - May 2018
Contributions:2 pushes, 1 branch in 1 year 8 months
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