Christopher Haster
BDFL at littlefs
Austin, Texas, United States
Summary
🤩
Rockstar🎓
Top SchoolChristopher Haster is a systems-focused software engineer with 14 years of experience building and hardening embedded and IoT software, currently leading development as BDFL of the littlefs microcontroller filesystem. Based in Austin, he has a strong Arm pedigree—contributing to Mbed OS, expanding mbed-cli’s test suite, and researching trusted systems like IceCap (Rust/seL4) and Veracruz for confidential computation. His hands-on work spans low-level firmware (robotics controller timing, PWM, and sensors) to robust developer tooling and test automation, reflecting a rare blend of embedded engineering and quality assurance rigor. Christopher combines open-source stewardship with production-grade engineering: he architects and maintains a widely used lightweight filesystem while also contributing deep testing coverage to critical tooling. Notably, his background includes both academic motion-planning research and practical IoT enablement, showing comfort across theory and constrained-hardware implementation.
14 years of coding experience
6 years of employment as a software developer
Bachelor's Degree x2, Electrical Engineering and Computer Science, Bachelor's Degree x2, Electrical Engineering and Computer Science at The University of Texas at Austin
Github Skills (16)
c1710
timers10
gpio10
embedded10
timer10
robotics10
c1110
pytest10
sys10
python10
test-automation10
pwm10
git8
hgt5
mer5
Programming languages (6)
Github contributions (5)
ut-ras/Rasware
Apr 2013 - Oct 2015
A generic robotics controller for the EK-LM4F120XL Stellaris Launchpad.
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:140 commits, 5 PRs, 23 pushes in 2 years 5 months
Contributions summary:Christopher primarily contributed to the implementation of a generic robotics controller. Their work included implementing a motor demo, integrating a global clock idea using timer interrupts, and developing modules for a line sensor. They also added various functions and optimized the timing within the existing time and pwm modules, alongside several bug fixes.
roboticscontrollerstellarisgenericlaunchpad
ARMmbed/mbed-cli
Mar 2016 - Jun 2016
Arm Mbed Command Line Interface
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:31 commits, 5 comments, 1 issue in 3 months
Contributions summary:Christopher primarily contributed to the project by implementing and expanding the test suite. They wrote new tests to cover functionality related to adding, removing, importing, and syncing libraries within the `mbed-cli` project. The commits demonstrate a deep understanding of the project's structure and aimed to ensure the reliability of the command-line interface through comprehensive testing. The user utilized pytest for test execution and integrated testing with different repository structures (git/hg).
command-line-toolcommand-line-interfacembedcommand-linearm
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