Daniel Mangum - Engineering at Canonical

Daniel Mangum

Engineering at Canonical

Durham, North Carolina, United States

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Summary

🤩

Rockstar

🎓

Top School

Daniel Mangum is an engineering leader and hands-on contributor with eight years building cloud-native infrastructure, embedded systems, and developer tooling from Durham, NC. He blends backend and DevOps expertise—shipping improvements to Kubernetes, Crossplane, and release/test infrastructure—while also contributing fixes to IoT and WebAssembly runtimes like ESP-IDF and WAMR. Formerly a CTO and head of engineering at Golioth and a principal engineer at Upbound, he has a track record of driving secure, scalable defaults for device connectivity and cloud control planes. Comfortable across controller-runtime, CI/CD, and low-level embedded debugging, he favors pragmatic refactors that reduce dependencies and improve testability. He blogs about generating code and systems (“code that writes code”) and has a pattern of evolving complex systems from simple working foundations.

8 years of coding experience

9 years of employment as a software developer

Ensworth

Undergraduate Bootcamp, Finance, Undergraduate Bootcamp, Finance at Training The Street

Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at Washington University in St. Louis

Github Skills (81)

controller10

crossplane10

cloud-computing10

testing10

authentication10

bash10

microsoft-azure10

c1110

multitenancy10

c1710

controls10

automation10

infrastructure10

embedded10

kubernetes-operator10

Programming languages (31)

CMakefileGoHTMLGroovyJupyter NotebookPonyTypeScript

Github contributions (5)

crossplane/crossplane

Apr 2019 - Jan 2023

The Cloud Native Control Plane

Role in this project:

Back-end Developer

Contributions:30 releases, 1565 reviews, 1856 commits in 3 years 10 months

Contributions summary:Daniel contributed to the Crossplane project by making several targeted fixes, primarily focused on the Azure cloud provider implementation. They addressed typos and made comment corrections in both the Azure Redis controller code and the associated test files. Additionally, the user added functionality for Azure resource group controllers.

containerscloud-computingserverlesscloudmulticloud

crossplane-contrib/provider-aws

Apr 2019 - Oct 2022

Crossplane AWS Provider

Role in this project:

Back-end Developer & DevOps Engineer

Contributions:303 reviews, 284 commits, 179 PRs in 3 years 7 months

Contributions summary:Daniel contributed to the backend of the Crossplane AWS Provider by correcting comments and implementing new Azure resource group controllers. They also made changes related to testing, including converting table-based test names to camel case to maintain consistent naming conventions throughout the codebase. Furthermore, the user was involved in implementing default resource classes and refactoring core packages related to controller runtime migration.

providerterraformawsterraform-modulecrossplane

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