Katelyn Schiesser is a senior network engineer with 13 years of experience building and maintaining resilient infrastructure for media and tech organizations from Hillsboro, Oregon. She has progressed from NOC technician and system administrator roles to senior system and network engineering positions at LAIKA, demonstrating strong operational discipline in mixed Linux environments. Katelyn combines hands-on Linux system administration with network design and troubleshooting, prioritizing efficiency and customer-facing support. Her open-source contributions include firmware and embedded systems work on the widely used Marlin 3D printer project and test-driven improvements to a popular CLI library, showing a practical blend of hardware control and software quality engineering. Colleagues rely on her to diagnose complex incidents quickly and implement durable fixes that reduce repeat work. She’s equally comfortable scripting and automating routine tasks as she is refining hardware-level behaviors, reflecting a systems-minded approach that spans from servers to IoT devices.
13 years of coding experience
10 years of employment as a software developer
Chandler/Gilbert Community College
Associate of Science - AS, Associate of Science - AS at Portland Community College
A beautiful and powerful interactive command line prompt
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:3 reviews, 6 commits, 7 PRs in 1 year 2 months
Contributions summary:Katelyn primarily contributed to improving the test suite and ensuring the quality of the `tty-prompt` library. They added new tests to cover edge cases and validate the correct behavior of the confirmation, multi-select, and slider functionalities. Their work included adding tests for input validation, ensuring proper handling of invalid user input, and verifying the expected output. This focused effort resulted in increased code coverage and improved the overall reliability of the interactive command-line prompt library.
Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
Role in this project:
Embedded Systems Engineer / IoT Developer
Contributions:19 reviews, 49 commits, 35 PRs in 6 months
Contributions summary:Katelyn primarily contributes to the Marlin firmware, focusing on improving 3D printer functionality and user experience. Their commits include enhancements to the LCD menu system, such as refining the bed leveling process and adding features like temperature compensation. Furthermore, they've implemented changes related to temperature sensor handling and power supply control, demonstrating a focus on printer hardware and control system improvements.
vendorreprapmarlinesp32commercial
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Katelyn Schiesser - Senior Network Engineer at LAIKA Studios