Karel Kalthoff
Software Engineering Manager at Tandem Diabetes Care
Redmond, Washington, United States
Summary
👤
Senior🎓
Top SchoolKarel Kalthoff is a Software Engineering Manager with a decade of experience building connected medical devices and embedded systems, currently leading BLE insulin pump software at Tandem Diabetes Care. He combines hands-on firmware expertise — especially with Bluetooth Low Energy stacks, low-power MCUs, RTOS, and OTA updates — with people leadership, mentoring engineers to deliver secure, FDA-ready products. Previously he led medical device projects at Punch Through Design, writing design docs for regulatory submissions and solving tricky BLE issues like secure connection caching and throughput optimization. Based in Redmond, he blends product-focused engineering with practical debugging skills using logic and packet analyzers, and brings a customer-centric mindset honed from early client-facing roles. Collectedly, Karel is motivated by building technology that measurably improves lives and by empowering teams to take ownership from design through deployment.
10 years of coding experience
6 years of employment as a software developer
University of Minnesota Twin CitiesConcordia Academy
Github Skills (12)
sdk9
macos9
swift9
ios9
objective-c9
xcode8
cocoapods8
carthage7
arduino-library4
esp323
firmware3
arduino3
Programming languages (1)
Github contributions (5)
PunchThrough/Bean-iOS-OSX-SDK
Oct 2015 - Jan 2017
Punch Through's SDK for speeding up development with the LightBlue Bean development platform
Contributions:5 releases, 167 commits, 7 pushes in 1 year 3 months
speedingsdkdevelopment-platformbeanpunch
cadunne/5103_Project_1
Oct 2015 - Oct 2015
Contributions:10 pushes in 11 days
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