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Jan Kerkenhoff

PROFILE

Jan Kerkenhoff

Jan Kerkenhoff contributed to the pulumi/pulumi-dotnet repository by developing features that enhanced deployment reliability, API consistency, and provider-engine interactions. Over three months, Jan implemented asynchronous background task completion for inline deployments, ensuring all operations finalize safely and reducing flaky states. He standardized property names across the Provider API, introducing a breaking change to unify request and response terminology for maintainability. Jan also added historical input support to provider SDK requests and resolved a deserialization edge case, improving diff accuracy and runtime resilience. His work leveraged C#, Go, and integration testing, demonstrating depth in backend development, API design, and SDK engineering.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

4Total
Bugs
1
Commits
4
Features
3
Lines of code
624
Activity Months3

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for pulumi/pulumi-dotnet: Implemented API Property Name Standardization across the Provider API to unify terminology between request and response classes. This feature introduces a breaking change to align property naming, enabling a consistent API surface and reducing future maintenance costs. The work was delivered via commit 307475611c111ca4b38396194c607d719e1628ea (Align Provider Request Property Names), co-authored by Jan Kerkenhoff. No major bug fixes were recorded this month; the focus was on API consistency and refactor readiness.

June 2025

2 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for pulumi/pulumi-dotnet focused on reliability, data integrity, and provider-to-engine interactions. Implemented historical data support in the provider SDK (OldInputs) for Diff/Update/Delete requests and Configure flows, and fixed a deserialization edge case that could cause an InvalidOperationException when URN is present on resource outputs. These changes improve diff accuracy, update/delete correctness, and overall resilience in engine interactions.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024: Focused on reliability and predictability of inline deployments in the Pulumi .NET SDK. Delivered asynchronous waiting for background tasks during inline deployments, with updates to test setups and the core deployment runner to accommodate the new behavior. No explicit bug fixes recorded this month; result is a more robust deployment experience with fewer flaky states and safer finalization.

Activity

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Quality Metrics

Correctness92.6%
Maintainability90.0%
Architecture90.0%
Performance77.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

C#csharpgoyaml

Technical Skills

API DesignAPI DevelopmentAsynchronous ProgrammingBackend DevelopmentC#Integration TestingSDK DevelopmentTestingbackend developmenterror handlingintegration testingresource management

Repositories Contributed To

1 repo

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

pulumi/pulumi-dotnet

Dec 2024 Feb 2026
3 Months active

Languages Used

C#csharpgoyaml

Technical Skills

Asynchronous ProgrammingBackend DevelopmentSDK DevelopmentTestingAPI Designbackend development