Gerard Ziemski
Cofounder Bioenergetic OS Architect Ex-Apple at Halfmarble LLC
Nebraska, United States
Summary
🤩
Rockstar🎓
Top SchoolGerard Ziemski is a systems engineer and entrepreneur with 13 years of professional experience building resilient software and embedded systems, now focused on agentic architectures for human systems biology. As Cofounder and Bioenergetic OS Architect at Halfmarble, he leads development of continuous telemetry platforms and invents patient-centered hardware like the UnSteadyRing—an inventive, battery-free wearable with four US patents pending—and the SteadyHandTool for makers with tremors. His background includes long tenures working on core Java runtimes and frameworks at Apple, Sun Microsystems, and Oracle, giving him deep low-level and runtime expertise that he applies to hardware-software co-design. He favors a "glass box" philosophy that preserves raw physiological data ownership and executed a defensive IP strategy to keep foundational health tech open and affordable. Based in Nebraska, Gerard blends startup grit with enterprise engineering rigor, moving from VM internals to medical-grade telemetry. An unconventional detail: he shifted active power and computation off tiny wearables into wrist hubs using passive RF telemetry—a design trade that reveals his systems-level, resource-efficient thinking.
13 years of coding experience
26 years of employment as a software developer
B.H.Sc, Computer Software Engineering, B.H.Sc, Computer Software Engineering at Western University
English, Polish
Github Skills (13)
openjdk10
jvm10
java10
code-tools9
eclipse9
openj98
sdk2
firmware1
avr1
usb1
atmel1
microcontroller1
kotlin1
Programming languages (1)
Github contributions (5)
gerard-ziemski/jdk
Feb 2023 - Aug 2025
JDK main-line development https://openjdk.org/projects/jdk
Contributions:411 pushes, 57 branches in 2 years 6 months
gerard-ziemski/jtreg
Jul 2022 - Dec 2022
https://openjdk.java.net/projects/code-tools/jtreg/
Contributions:4 pushes, 1 branch in 4 months
code-toolsopenjdk-javaopenjdkjavajava-net
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