Doc Walker
Principal Cyber Software Engineer at Northrop Grumman Mission Systems, Inc.
Loveland, Ohio, United States
Summary
👤
Senior🎓
Top SchoolDoc Walker is a Principal Cyber Software Engineer at Northrop Grumman Mission Systems with 12 years of experience building and testing cyber defense tools and conducting malware analysis. Based in Loveland, Ohio, he combines embedded systems and IoT development with rigorous software verification to deliver secure, reliable systems. He contributed to the ModbusMaster library, adapting it for AVR and SAM architectures and refining architecture-specific compatibility, documentation, and code quality. Earlier in his career, he led software consulting for Booz Allen Hamilton, expanding his skills in cyber defense before joining Northrop Grumman in 2021. He holds a BS in Computer Science from the University of Texas at Austin and an MBA from UTSA, underscoring both technical depth and strategic business perspective. He is motivated to broaden his skill set further while continuing to advance software developer excellence in defense and security domains.
13 years of coding experience
Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at The University of Texas at AustinUniversity of Texas at San Antonio
Github Skills (10)
avr10
embedded10
c-language10
sys10
arduino10
modbus10
c-programming-language10
sam10
iot8
uart8
Programming languages (5)
Github contributions (5)
4-20ma/ModbusMaster
Dec 2012 - Sep 2016
Enlighten your Arduino to be a Modbus master
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:2 releases, 154 commits, 62 PRs in 3 years 9 months
Contributions summary:Doc primarily contributed to the ModbusMaster library, focusing on adapting it for different microprocessors, specifically AVR and SAM architectures. They implemented fixes to address compatibility issues with specific hardware platforms by incorporating architecture-specific conditional compilation. The user also worked on code improvements, refactoring, and documentation updates to maintain and enhance the library's functionality and usability.
serial-portsenlightenmodbus-masterserialarduino-library
4-20ma/i2c_rtc_m41t00s
Dec 2012 - Oct 2016
Arduino class library for ST M41T00S real-time clock
Contributions:19 commits, 12 PRs, 6 pushes in 3 years 9 months
clockclass-libraryarduino-libraryarduinoreal-time-clock
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