Jared Hester
Software Engineer at Avanade
New York, New York, United States
Summary
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RockstarJared Hester is a software engineer in New York with 14 years of experience specializing in F# and tooling for the .NET ecosystem. He is an active open-source contributor to flagship projects like the F# compiler and the Ionide VS Code plugin, where he has improved core language features, editor UX, and dependency management. Jared blends backend systems work with build and release automation—having modernized CI/CD, build scripts, and cross-platform tooling across Expecto, FAKE, and FSharp.Formatting. His contributions show a focus on correctness and testing (FsCheck-driven tests for struct records) alongside pragmatic refactors that reduce technical debt. Notably, he moves fluidly between language-design-level changes and developer ergonomics, improving both compiler diagnostics and editor autocompletion. Based in New York, he brings deep F# expertise and a knack for making developer tools more reliable and pleasant to use.
14 years of coding experience
Github Skills (38)
unit-testing10
dependency-management10
fscheck10
testing10
net10
dotnet10
build-system10
asp-net10
compiler-design10
compiler-compiler10
paket10
build-automation10
compiler10
fsharp10
functional-programming10
Programming languages (8)
Github contributions (5)
fsprojects/FSharp.Formatting
Feb 2016 - Jun 2019
F# tools for generating documentation (Markdown processor and F# code formatter)
Role in this project:
Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:70 commits, 7 PRs, 2 pushes in 3 years 3 months
Contributions summary:Jared primarily contributed to the project by updating the build process and test infrastructure. They modified build scripts, fixed build-related issues, and updated dependencies, including Paket and FSharp.Core. They also addressed test failures, fixed test reversals, and added additional token categories within the code formatting tools. These actions point towards a blend of backend work (code formatting tools) and strong focus on building and release automation.
markdown
haf/expecto
Jan 2016 - Dec 2016
A smooth testing lib for F#. APIs made for humans! Strong testing methodologies for everyone!
Role in this project:DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:12 commits, 4 PRs, 3 pushes in 11 months
Contributions summary:Jared's contributions primarily involve configuring the build process and CI/CD pipelines for the F# testing library. This includes setting up the build environment with Paket and FAKE, configuring builds for both .NET Framework and .NET Core, and adding an Appveyor configuration. They also refactored the code to use the Logary facade, ensuring proper logging. This work demonstrates a focus on automation, build management, and ensuring cross-platform compatibility.
testingproperty-based-testingstress-testingunit-testingperformance-testing
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