MarcinĀ Jastrzebski
Principal Software Engineer Manager at Microsoft
Greater Seattle Area United States
Summary
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RockstarMarcin Jastrzebski is a Principal Software Engineering Manager based in the Greater Seattle Area with seven years of hands-on experience delivering cloud-native developer tools at Microsoft. He combines team leadership with deep backend expertise, notably contributing to Azure Bicep by improving its CLI, command-line parsing, language server integration, and test infrastructure. Marcin excels at cleaning up legacy codebases and streamlining build and test workflows to make developer tooling more reliable and productive. He brings a pragmatic, delivery-focused mindset to large-scale open-source projects while mentoring engineers to elevate code quality and operational rigor. A practical problem solver, he pairs managerial responsibilities with regular hands-on contributions to production-grade developer platforms.
7 years of coding experience
Github Skills (12)
net10
asp-net10
command-line-arguments10
dotnet10
command-line-parser10
csharp10
dotnet-core10
command-line10
testing9
azure-resource-manager9
resource-manager9
arm9
Programming languages (10)
Github contributions (5)
Azure/bicep
May 2020 - Jan 2023
Bicep is a declarative language for describing and deploying Azure resources
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 3558 reviews, 285 commits in 2 years 8 months
Contributions summary:Marcin primarily focused on developing and improving the Bicep CLI, a declarative language for describing and deploying Azure resources. Their contributions include implementing basic command-line parsing, cleaning up the existing codebase, and adding core test projects. The user worked on the command line and language server codebase, enhancing the build process, and improving the overall functionality of the CLI tool.
azurebiceparm-templatesarm-json
majastrz/bicep-registry-demo
Aug 2021 - May 2026
Contributions:67 pushes in 4 years 10 months
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