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Collin MacDonald

PROFILE

Collin Macdonald

Worked on the lowRISC/opentitan and google/fuzztest repositories, focusing on build system modernization, hardware simulation, and embedded firmware development. Migrated opentitan’s build and simulation infrastructure to the C++17 standard using Bazel, unifying compilation flags and improving consistency across software and hardware components. Enhanced telemetry reliability in fuzztest by refining shard-based data collection logic in C++. Expanded opentitan’s certificate handling by adding X.509 TBS support to the perso_tlv path, improving error handling and laying groundwork for future certificate extensions. Demonstrated expertise in C++, build system configuration, and embedded systems, delivering features that improved maintainability and cross-component compatibility.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

6Total
Bugs
1
Commits
6
Features
3
Lines of code
64
Activity Months3

Work History

August 2025

1 Commits • 1 Features

Aug 1, 2025

Delivered Perso Certificate Handling: X.509 TBS support in cert object lookup for lowRISC/opentitan, expanding supported certificate types and refining error handling. Implemented via the perso_tlv path with obj_type checks to ensure not-found errors occur only for disallowed types.

July 2025

2 Commits • 1 Features

Jul 1, 2025

2025-07 Monthly Summary for developer performance review focusing on deliverables, reliability, and impact across two repositories: lowRISC/opentitan and google/fuzztest. Emphasis on business value, code quality, and data reliability.

June 2025

3 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary focusing on key accomplishments, business value, and technical achievements for the lowRISC/opentitan repository.

Activity

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Quality Metrics

Correctness93.4%
Maintainability96.6%
Architecture90.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

BazelCC++HjsonShell

Technical Skills

Build System ConfigurationBuild SystemsC++C++ DevelopmentEmbedded SystemsFirmware DevelopmentHardware SimulationSoftware Engineering

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

lowRISC/opentitan

Jun 2025 Aug 2025
3 Months active

Languages Used

BazelC++HjsonShellC

Technical Skills

Build System ConfigurationBuild SystemsC++ DevelopmentHardware SimulationEmbedded SystemsFirmware Development

google/fuzztest

Jul 2025 Jul 2025
1 Month active

Languages Used

C++

Technical Skills

C++Software Engineering