Mitchell Hashimoto
Co-Founder at Superlogical
Manhattan Beach, California, United States
Summary
🤩
Rockstar🎓
Top SchoolMitchell Hashimoto is a serial founder and systems engineer with 17 years building resilient infrastructure tools and developer platforms, best known for founding HashiCorp and creating widely used open-source projects like Vagrant, Terraform, Consul, Vault, Nomad, and Packer. He combines executive experience scaling HashiCorp to thousands of customers with deep hands-on engineering — contributing core Go and systems work across projects from memberlist and go-plugin to low-level event loops and Zig compiler internals. Based in Manhattan Beach, he’s equally fluent in cloud provider integrations, Kubernetes automation, and cross-platform system tooling, with a track record of improving reliability, testing, and developer ergonomics. Mitchell’s contributions often bridge product and plumbing: shipping user-facing CLIs and websites while hardening the underlying RPC, discovery, and error-handling subsystems. Now a board member at Vercel, he continues to shape cloud developer experiences while maintaining active, practical involvement in open-source infrastructure.
18 years of coding experience
16 years of employment as a software developer
B.S. Computer Science, B.S. Computer Science at University of Washington
Japanese, English
Stackoverflow
32,909reputation
783kreached
26answers
0questions
virtualbox
top-5%
apache
top-1%
chef-infra
top-5%
http
top-1%
vagrant
top-1%
ssh
top-5%
Github Skills (170)
dependency-management10
apim10
transaction10
google-cloud-platform10
website-development10
web-application10
cloud-computing10
compiler-development10
testing10
command-line-interface10
autocomplete10
http10
bash10
templater10
microsoft-azure10
Programming languages (25)
Github contributions (5)
mitchellh/go-homedir
Aug 2014 - Jan 2019
Go library for detecting and expanding the user's home directory without cgo.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:22 commits, 16 PRs, 15 pushes in 4 years 6 months
Contributions summary:Mitchell primarily contributed to the `go-homedir` library, enhancing its functionality and robustness. Their work included implementing the `Expand` and `Reset` functions, improving the cache mechanism for home directory retrieval using `sync/atomic.Value`, and fixing existing logic to improve accuracy. They also addressed platform-specific behaviors, such as handling Plan9 environments and refining code formatting.
cgogohome-directory
hashicorp/go-multierror
Dec 2014 - Mar 2021
A Go (golang) package for representing a list of errors as a single error.
Role in this project:Back-end Developer
Back-end DeveloperContributions:33 commits, 14 PRs, 24 pushes in 6 years 3 months
Contributions summary:Mitchell primarily contributed to the `go-multierror` library, a Go package for handling multiple errors. They implemented the `errwrap.Wrapper` interface and added the `Unwrap`, `Is`, and `As` methods to support Go 1.13 error wrapping and introspection. The user also introduced the `Prefix` function, for adding prefixes to errors, and refactored and added tests, showing a focus on functionality, code clarity, and usability.
gogolang
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