Bernd Herzog
Softwareentwickler at Selbstständig
Vienna, Austria
Summary
🤩
Rockstar🎓
Top SchoolBernd Herzog is a Vienna-based software engineer with 10 years of experience, currently working independently on embedded and systems-level projects. He holds an MS in Information Management and Computer Security and a BS in Computer Science, blending formal security training with practical firmware expertise. His open-source work on the well-regarded portapack-mayhem firmware shows a focus on robustness—improving runtime error reporting, Cortex-M fault context capture, stack overflow detection, and flashing utilities. Bernd spans the stack from low-level Cortex-M internals to tooling for firmware management, favoring stability and diagnosability over flashy features. As a solo practitioner he combines hands-on development with system design and security-aware engineering, often tackling the gritty details that make devices reliable in the field. Colleagues describe him as a "stack-is-full" developer who enjoys solving obscure runtime problems before they reach users.
10 years of coding experience
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Fachhochschule DortmundMaster of Science - MS, Informationsmanagement und Computersicherheit, Master of Science - MS, Informationsmanagement und Computersicherheit at Fachhochschule Technikum WienIndividualstudium, Individualstudium at Universität Wien
Github Skills (13)
firmware10
debugging10
embedded10
error-handling10
debug10
c-language10
cprogramming-language10
sys10
cortex-m9
arm9
frequency8
bootloader7
memory-management7
Programming languages (4)
Github contributions (5)
portapack-mayhem/mayhem-firmware
Feb 2023 - Mar 2025
Custom firmware for the HackRF+PortaPack H1/H2/H4
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:66 reviews, 69 PRs, 16 pushes in 2 years 1 month
Contributions summary:Bernd's commits primarily focused on enhancing the error handling and debugging capabilities of the firmware. This involved adding detailed runtime error information to the "guru meditation" screen, incorporating Cortex-M0 and Cortex-M4 fault context information, and integrating stack overflow detection. The contributions also included improvements to baseband image compression and the creation of a flash utility, indicating a focus on system stability and firmware management.
portapacksdr-receiverfirmwarecustom-firmwaresdrsharp
bernd-herzog/portapack-mayhem
Mar 2023 - Mar 2025
Custom firmware for the HackRF+PortaPack H1/H2
Contributions:11 PRs, 297 pushes, 55 branches in 2 years
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