John Erickson
Group Engineering Manager at Microsoft
Mercer Island, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJohn Erickson is a Group Engineering Manager at Microsoft with 11 years of experience building and leading teams focused on developer tools, cloud storage, and kernel-level systems. He runs engineering for key DevOps and build infrastructure projects—including Azure Artifacts, BuildXL, and AnyBuild—combining hands-on optimization of caching and blob-store download URI flows with strategic platform leadership. His background spans deep technical work (optimizing BuildXL memoization and Azure Pipelines agent caching) to scaling teams that deliver internal and public-facing CI/CD tooling. Based in Mercer Island, WA, he blends systems-level expertise with practical DevOps improvements that measurably reduce latency and database load, and he’s known for surfacing non-obvious optimizations that improve parallelism and cache hit efficiency.
11 years of coding experience
12 years of employment as a software developer
BSE Electrical Engineering Computer Science, BSE Electrical Engineering Computer Science at Duke UniversityMercer Island High School
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (18)
caching10
back-end-development10
dx10
performance-optimization10
ci-cd-pipeline10
dotnet-core10
azure-pipelines10
csharp10
dotnet9
net9
build-automation9
asp-net9
powershell8
testing8
api-design8
Programming languages (19)
Github contributions (5)
microsoft/azure-pipelines-agent
Jan 2019 - Dec 2022
Azure Pipelines Agent 🚀
Role in this project:
DevOps Engineer
DevOps EngineerContributions:11 reviews, 20 commits, 25 PRs in 3 years 11 months
Contributions summary:John primarily focused on improving the Azure Pipelines agent, particularly related to pipeline caching and build processes. Contributions included configuring and optimizing dedup parallelism, which involved modifying the agent's behavior to handle concurrent operations more efficiently. They also addressed various issues related to the pipeline caching tasks, including supporting a combined cache task and integrating new caching features like fallback keys, input globbing and relative paths. Additionally, the user made enhancements to testing and logging, including propagating system debug settings.
azure-pipelines
microsoft/BuildXL
May 2022 - Nov 2022
Microsoft Build Accelerator
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 3 comments in 6 months
Contributions summary:John primarily focused on optimizing the BuildXL cache and memoization store. They implemented and refactored caching mechanisms, particularly related to content hash expiry and download URI retrieval from blob stores. Their work included improving the efficiency of the cache by reducing database round trips and removing static caches. Furthermore, they introduced functionality to request and utilize download URIs, potentially improving performance.
kernelunixcompilermicrosoftexecutable
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