Sergio B
Senior Software Engineer, IOS at League
Bogota, Colombia
Summary
👤
Senior🎓
Top SchoolSergio B is a senior iOS engineer based in Bogotá with 12 years of software experience and over 9 years focused on iOS and Flutter mobile development. He designs and ships production apps and SDKs—most recently building an authentication/authorization iOS SDK with biometrics and Keychain at League—and manages CI/CD App Store releases and performance work. Comfortable in distributed teams, he pairs hands-on feature development with unit testing, async/await patterns, and security-minded engineering. Beyond mobile, he contributes to high-profile open-source emulator projects (RetroArch, parallel-n64, Genesis-Plus-GX, PPSSPP), where he’s improved frontends, core integrations, and build systems—evidence of low-level systems fluency uncommon in many app developers. Self-motivated and independently productive, he blends pragmatic delivery with a history of debugging, optimization, and cross-platform thinking.
12 years of coding experience
9 years of employment as a software developer
Bachelor's degree Computer Engineering, Bachelor's degree Computer Engineering at Pontificia Universidad JaverianaColegio Claustro Moderno
English, Spanish
Github Skills (27)
dependency-management10
git10
c-language10
rc10
configuration-management10
cmake10
c1110
pps10
device-emulation10
c1710
arch10
sound-processing10
build-automation10
libretro10
cprogramming-language10
Programming languages (12)
Github contributions (5)
ekeeke/Genesis-Plus-GX
Jul 2014 - Apr 2017
An enhanced port of Genesis Plus - accurate & portable Sega 8/16 bit emulator
Role in this project:
Backend Developer
Backend DeveloperContributions:17 commits, 3 PRs, 11 comments in 2 years 9 months
Contributions summary:Sergio primarily focused on modifying the emulator's core functionality, specifically the Sega Genesis Plus GX libretro port. Their contributions include renaming files, changing directory paths for BRAM, and merging updates from the upstream repository. They also updated the PSG sound chip implementation with merging and bug fixes.
16-bit
libretro/parallel-n64
Oct 2014 - Feb 2017
Optimized/rewritten Nintendo 64 emulator made specifically for Libretro. Originally based on Mupen64 Plus.
Role in this project:Back-end Developer
Back-end DeveloperContributions:17 commits, 10 PRs, 45 comments in 2 years 4 months
Contributions summary:Sergio contributed to the Nintendo 64 emulator by fixing bugs, removing unused variables, and reverting incorrect changes. They updated the code to integrate with the build system, modifying the git hash generation. Furthermore, they made changes to core settings by using `enabled/disabled` configurations. Their work primarily focused on improving the functionality and integration aspects of the emulator's core components.
libretronintendo
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