Toni Solarin-sodara is a Senior Software Engineering Lead at Microsoft with 11 years' experience building developer tooling and cross-platform client runtimes, currently leading a team on the Mesh C++ SDK that powers real-time networking, concurrency and telemetry across HoloLens, Xbox, macOS, web (WASM) and mobile. He combines systems-level C++ expertise with hands-on work in C#, Go and DevOps, having shipped CoreRT improvements, code-instrumentation for Coverlet, and cloud-cleanup tooling (cloud-nuke) that materially reduced costs. Toni has a track record of productizing research—most recently turning AI/ML prototype work into a facial expressivity pipeline for 3D avatars—and led CoreML inference efforts for Teams on macOS. His open-source contributions show a focus on enabling testability and platform portability (method shimming, AOT runtime support, infrastructure testing), reflecting a pragmatic drive to make complex systems observable and maintainable. Based in London, he thrives at the intersection of low-level runtime engineering and developer experience, often tackling the hard plumbing that lets higher-level teams ship features faster.
11 years of coding experience
5 years of employment as a software developer
Senior School Leaving Certificate, Senior School Leaving Certificate at Starfield Private College
A tool for cleaning up your cloud accounts by nuking (deleting) all resources within it
Role in this project:
Backend & DevOps Engineer
Contributions:18 releases, 9 reviews, 231 commits in 4 years
Contributions summary:Toni primarily contributed to the development and enhancement of a command-line tool for managing cloud resources. Their contributions involved adding core functionality to list and delete resources, including AWS EC2 instances. They also implemented error handling and leveraged Gruntwork's CLI library for improved UX. Furthermore, the user integrated features such as a confirmation prompt, indicating a focus on usability and a complete feature set.
Replace any .NET method (including static and non-virtual) with a delegate
Role in this project:
Back-end Developer
Contributions:4 releases, 206 commits, 9 PRs in 4 years 2 months
Contributions summary:Toni focused on developing a .NET library for replacing methods with delegates. The contributions involved creating core classes like `Arg`, `Shim`, and `Of` along with the initial `IsolationContext` to facilitate dependency isolation and method replacement. Furthermore, the user implemented dependency analysis and call graph generation functionality and added the foundation for rewriting code with a focus on virtual calls, covering both methods and constructors. This work is a key contribution towards the core functionality of the library, aimed at enabling robust unit testing and mocking capabilities within .NET projects.
dotnettesting-frameworktestingmethodmocking
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Toni Solarin-sodara - Senior Software Engineering Lead - Microsoft Mesh