Jason Nelson
Co-Founder Partner at Carbonmade
Greater Chicago Area United States
Summary
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RockstarJason Nelson is a seasoned founder and engineer with 15 years building developer-facing products and leading startups, currently co-running mymind and co-founding Carbonmade. He pairs executive product experience with deep hands-on .NET systems work, contributing performance and modernization fixes across prominent open-source projects like AngleSharp, ImageSharp, and protobuf-net. Jason has a track record of refactoring legacy code, enabling nullability and Span-based performance improvements, and removing outdated platform targets to simplify cross-platform builds. Based in the Chicago area, he blends product-first leadership with low-level backend craftsmanship, often tackling subtle interoperability and memory-allocation issues that improve maintainability at scale.
15 years of coding experience
Github Skills (56)
unit-testing10
cbor10
mysql10
protocol-buffers10
image-processing10
compression-algorithm10
webauthn10
net10
dotnet10
data-serialization10
fido10
serialization10
netframework10
netstandard10
asp-net10
Programming languages (10)
Github contributions (5)
passwordless-lib/fido2-net-lib
Oct 2021 - Jan 2023
FIDO2 .NET library for FIDO2 / WebAuthn Attestation and Assertion using .NET
Role in this project:
Back-end Developer
Back-end DeveloperContributions:49 reviews, 93 commits, 48 PRs in 1 year 3 months
Contributions summary:Jason primarily focused on improving code quality and modernizing the FIDO2 .NET library. They dropped support for .NETStandard2.0 in the AspNet project and updated dependencies to use FrameworkReference. The contributions also include implementing code quality improvements such as simplifying code, replacing allocations, using best practices like C#9, and utilizing the System.Text.Json library for serialization, which led to performance improvements and better code maintainability. The user also worked on test code and added CTAP support.
net-librarydotnetwebauthnsecurityattestation
xoofx/markdig
May 2018 - Jan 2023
A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 reviews, 51 commits, 15 PRs in 4 years 8 months
Contributions summary:Jason primarily contributed to the Markdig project by implementing and enhancing its .NET Standard compatibility. They added support for .NETSTANDARD 2.0, enabling the use of FIXED_STRING & UNSAFE code, and began enabling nullability annotations to improve code quality. Furthermore, the user addressed formatting issues and made modifications to project configuration files, showcasing a focus on modernizing the project's build and compatibility features. These changes demonstrate an effort to maintain and enhance the project's compatibility and maintainability.
dotnetcommonmarkcompliantmarkdown-parsergfm
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