Roger Oba
Principal Product Engineer at Tellus
São Paulo, Brazil
Summary
🤩
Rockstar🎓
Top SchoolRoger Oba is a Principal Product Engineer based in São Paulo with over a decade of experience shipping mobile products and scaling startups from early stage to major AUM milestones. He blends hands-on iOS and Android engineering with product strategy, observability, and technical writing, having built documentation frameworks and CI/CD improvements that reduced friction across teams. A core contributor to fastlane and active in high-profile open-source projects like danger-js and xcode-install, he brings deep automation and release-engineering expertise—especially around Bitrise and App Store workflows. At Tellus he progressed from early engineer to strategic technical leader, helping grow the company through product-focused engineering and strong cross-functional coordination. Known for clear communication, ownership, and a knack for turning operational gaps into repeatable processes, he thrives on collaborating with smart teams to build reliable, scalable apps.
10 years of coding experience
11 years of employment as a software developer
Engineer’s Degree, Computer Engineering, Engineer’s Degree, Computer Engineering at Pontifícia Universidade Católica de CampinasBEPiD Student (Brazilian Educational Program for iOS Development), Desenvolvimento iOS, BEPiD Student (Brazilian Educational Program for iOS Development), Desenvolvimento iOS at Eldorado Research Institute (Campinas)
Portuguese, English, Spanish
Stackoverflow
1,292reputation
420kreached
51answers
14questions
Github Skills (34)
ios10
cil10
mkdocs10
ruby10
xcode10
automation10
google-apps10
mobile10
versioning10
automations10
bitrise10
documentation10
github-ci9
snapshots9
fastlane9
Programming languages (19)
Github contributions (5)
xcpretty/xcode-install
Mar 2021 - Dec 2022
🔽 Install and update your Xcodes
Role in this project:
Automation Engineer / Build & Release Engineer
Automation Engineer / Build & Release EngineerContributions:3 releases, 16 reviews, 14 commits in 1 year 9 months
Contributions summary:Roger primarily focused on maintaining and updating the project's versioning and build process. They addressed a whitespace issue in a configuration file related to Xcode versions. Their other major contribution involved updating the project version, indicating a responsibility for managing releases and ensuring the software's versioning is correct.
macosupdatexcode
fastlane/docs
Oct 2020 - Nov 2022
All the fastlane docs
Role in this project:Technical Writer
Technical WriterContributions:188 reviews, 129 commits, 132 PRs in 2 years 1 month
Contributions summary:Roger primarily contributed to the fastlane documentation repository. Their commits focused on updating documentation, including adding documentation for environment variables, updating screenshots, and fixing broken links within the documentation. The user also made changes to the documentation theme, fixing the footer copyright and version badges. They also worked on removing an "Edit on Github" button from a plugins page and improving link rendering.
fastlanemarkdown
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