Henrik Feldt
Stockholm, Stockholm County, Sweden
Summary
🤩
RockstarHenrik Feldt is a pragmatic back-end engineer based in Stockholm with 16 years of experience building reliable, security-conscious .NET and F# systems that help people make better decisions. He’s an active open-source contributor to mature projects like Castle Windsor, Mono, DotLiquid and Paket, focusing on core libraries, testing infrastructure, cryptography, and performance-sensitive utilities. Henrik’s work shows a pattern of improving reliability and developer experience—adding tests, refining APIs, and tightening crypto and compression implementations. Comfortable across databases, package management and state-machine integrations, he blends deep systems knowledge with a knack for practical refactors and cross-platform packaging. An observer with a dry creative streak (his GitHub quip about a bear’s colors hints at a playful curiosity), he favors pragmatic solutions that scale and endure.
16 years of coding experience
Stackoverflow
9,772reputation
1.7mreached
175answers
80questions
datetime-format
top-5%
nhibernate
top-5%
rollback
top-5%
datetime
top-5%
Github Skills (54)
crypto10
unit-testing10
nuget10
puppeteer10
filesystem10
postgresql10
puppet10
compress10
package-development10
net10
plugin-development10
testing10
configuration-management10
dotnet10
file-operations10
Programming languages (33)
Github contributions (5)
haf/DotNetZip.Semverd
Aug 2011 - Nov 2021
Please use System.IO.Compression! A fork of the DotNetZip project without signing with a solution that compiles cleanly. This project aims to follow semver to avoid versioning conflicts. DotNetZip is a FAST, FREE class library and toolset for manipulating zip files. Use VB, C# or any .NET language to easily create, extract, or update zip files.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 45 commits, 42 PRs in 10 years 4 months
Contributions summary:Henrik primarily contributed to the internal workings of a zip file library. They focused on modifying code related to CRC32 computations, file extraction, encryption validation, and compression methods within the library's core components. These changes involved enhancements to the extraction process, security, and foundational utility methods, suggesting a focus on improving the library's reliability, security and performance.
signingclass-libraryfollowxzavoid
haf/expecto
Oct 2016 - Dec 2022
A smooth testing lib for F#. APIs made for humans! Strong testing methodologies for everyone!
Role in this project:Backend Developer & QA Engineer / Test Automation Engineer
Backend Developer & QA Engineer / Test Automation EngineerContributions:39 releases, 5 reviews, 272 commits in 6 years 2 months
Contributions summary:Henrik contributed to the testing infrastructure and codebase by merging branches that included changes to testing frameworks and test configurations. The commits involved modifying Fuchu test files to integrate with MbUnit and xUnit, and adjustments to test configurations. The user also updated assembly information and package dependencies within the project.
property-based-testingstress-testingdotnettestingfsharp
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