Corey Hulen
Founder And CTO at Mattermost
Menlo Park, California, United States
Summary
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RockstarCorey Hulen is a seasoned founder and CTO with over a decade of experience building and scaling developer-focused products from startup to acquisition. He co-founded Tempo AI (acquired by Salesforce) and now leads Mattermost, an open-source, enterprise messaging platform, combining deep technical leadership with product and go-to-market experience. Technically fluent across front-end and back-end work, he contributes to open-source projects like Focalboard and Mattermost, improving UI UX and maintaining release automation. His background spans distributed systems, big-data architectures, mobile intelligence, and enterprise collaboration—skills honed at Microsoft and in multiple founded ventures. Based in Menlo Park, he pairs hands-on engineering with strategic vision and a track record of turning research-grade technology into commercial products.
10 years of coding experience
18 years of employment as a software developer
Github Skills (19)
back-end-development10
typescript10
ui-design10
mattermost10
uid10
go10
front-end-development10
typescript-types10
version-control10
typescripts10
backend10
collaboration10
react10
javascript9
cypress9
Programming languages (13)
Github contributions (5)
mattermost/mattermost
May 2020 - Jan 2023
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
Role in this project:
Back-end Developer
Back-end DeveloperContributions:179 releases, 74 reviews, 265 commits in 2 years 8 months
Contributions summary:Corey's primary contribution involved updating and maintaining the Mattermost version numbers within the codebase. This included updating the `model/version.go` file to reflect the latest releases, such as 5.37.0, 6.1.0, and subsequent versions up to 9.2.0. Additionally, the user collaborated with "Mmbot" on several commits, likely involving automated tasks related to version management and CI/CD. The user also made contributions related to the bot features.
golangsecuredevelopment-lifecyclelifecyclereact-native
mattermost-community/focalboard
Mar 2021 - Jan 2023
Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.
Role in this project:Front-end Developer
Front-end DeveloperContributions:53 commits, 8 PRs, 137 pushes in 1 year 9 months
Contributions summary:Corey primarily worked on improving the user interface and functionality of the Focalboard application, specifically concerning URL properties in the card interface. The commits show the implementation of features like creating, editing, and copying URL properties within cards, as well as integrating these properties into different view types (Table, Gallery, Calendar). The changes also include the creation and modification of components to facilitate the display and interaction of the URL elements.
golangnotionasanahostedcollaboration
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