Erik Hornberger is a Staff Software Engineer with nine years of experience building medical and healthcare software across embedded, iOS, and HPC domains, currently on a multi-year assignment in Japan developing next-generation MEG imaging at Sumitomo's Yokosuka research center. He blends imaging algorithm research, high-performance computing, and production software development—having moved from R&D roles in cryogenics and proton therapy to senior engineering positions on Apple’s Health, Siri Health, and AIML teams. A hands-on contributor to notable open-source projects like CareKit, he’s improved iOS health UX and extensibility while maintaining cross-cultural collaboration as a Japanese-English bridge in multinational teams. Comfortable shipping end-to-end solutions from firmware to front-end, Erik pairs technical depth in signal processing with practical product focus and proven leadership in large volunteer programs during his academic career.
9 years of coding experience
15 years of employment as a software developer
Engineering and Japanese Language, Engineering and Japanese Language at Sophia University
Critical Language Scholarship Program, Critical Language Scholarship Program at Himeji Dokkyo University
Bachelor of Science (BS) Electrical Engineering, Bachelor of Science (BS) Electrical Engineering at Messiah University
Japanese Language, Japanese Language at Hokusei Gakuen University
CareKit is an open source software framework for creating apps that help people better understand and manage their health.
Role in this project:
Mobile Developer (iOS)
Contributions:16 commits, 13 PRs, 31 comments in 1 year 2 months
Contributions summary:Erik primarily focused on enhancing the user interface and functionality of the iOS application within the CareKit framework. Their contributions include making `tableView` properties public in multiple view controllers to allow customization and access. The user also implemented features related to displaying content when no events are present, adding optional "no data" text properties across several view controllers. Furthermore, the user addressed minor bug fixes and documentation updates.
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Erik Hornberger - Staff Software Engineer at Apple