Robert Wallhead is a Security Architect based in Melbourne with 16 years of experience blending secure software development, security assessments and threat modelling across critical energy systems. At Hydro Tasmania he has moved from hands-on C# .NET development and SCADA support into architecture and team leadership, driving DevOps maturity and developer-led professional development. He combines practical backend and test automation skills—evidenced by contributions to the pyxero Python client—with embedded and hardware-interfacing experience from hobby and freelance projects. Comfortable across Python, C/C++ and .NET stacks, he has applied his skills to everything from electricity market trading platforms to aerial image analysis for the Australian Antarctic Division. Known for improving reliability and test coverage, he brings a pragmatic, security-first mindset to complex industrial and cloud-connected systems.
16 years of coding experience
10 years of employment as a software developer
Bachelor of Computing, Programming, Artificial Intelligence, Bachelor of Computing, Programming, Artificial Intelligence at University of Tasmania
Python API for accessing the REST API of the Xero accounting tool.
Role in this project:
Back-end Developer & Test Automation Engineer
Contributions:13 commits, 4 PRs, 10 comments in 27 days
Contributions summary:Robert primarily focused on enhancing the functionality and test coverage of the `pyxero` Python library, designed for interacting with the Xero accounting API. They implemented the ability to pass GET parameters to the API methods, enabling support for more complex requests, and wrote comprehensive unit tests to validate this new functionality. Furthermore, the user added support for "Contact Groups" within the API client. Their work reflects a dedication to improving both the features and reliability of the library.
Contributions:131 commits, 65 pushes, 3 branches in 2 years 11 months
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Robert Wallhead - Security Architect at Hydro Tasmania