Gerard Gunnewijk
Senior Backend Programmer at Fotofabriek
Groningen, Groningen, Netherlands
Summary
👤
Senior🎓
Top SchoolGerard Gunnewijk is a seasoned .NET backend developer with 10 years of experience, currently driving backend work at Fotofabriek from his base in Groningen. He specializes in ASP.NET Core and modern .NET tooling, combining pragmatic production experience with curiosity for emerging technologies. Gerard has a history of founding and running small development ventures, acting as a trusted sparring partner for peers, and shaping educational ICT resources for Stichting Praktijkleren. He contributes to notable open-source projects like SixLabors/ImageSharp, where he improved core primitives and added unit tests to enhance usability and robustness. Practical, detail-oriented, and test-minded, he brings both entrepreneurial grit and hands-on craftsmanship to backend systems.
10 years of coding experience
12 years of employment as a software developer
HBO - Bachelor of Science, ICT, 7.45, HBO - Bachelor of Science, ICT, 7.45 at StendenHigh School, NT, High School, NT at Ubbo Emmius
Dutch, English
Stackoverflow
12,623reputation
1.5mreached
317answers
26questions
task-parallel-library
top-5%
file-upload
top-5%
Github Skills (20)
image-processing10
csharp10
testing9
drawing9
windows-phone9
asp-net-mvc9
file-upload9
task-parallel-library9
asp-net9
netcore9
wpf6
entity-framework6
actionscript6
windows6
memorystream6
Programming languages (8)
Github contributions (5)
SixLabors/ImageSharp
May 2019 - Sep 2021
:camera: A modern, cross-platform, 2D Graphics library for .NET
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 21 commits, 2 PRs in 2 years 5 months
Contributions summary:Gerard primarily contributed to the core functionalities of the `sixlabors/imagesharp` library. Their work involved adding deconstructors to various primitive types within the `SL.Core` namespace, enabling easier access to individual components of these structures. The user also created and integrated unit tests to validate the behavior of these newly implemented deconstructors, ensuring their correct functionality and improving code quality. This work focused on enhancing the library's usability and testing robustness.
bmpvulkancamerac-sharpjpeg
SecretView/Localization.SqlLocalizer
Sep 2018 - Jul 2022
Repository to enable localizations using EF & SQL in an ASP.NET Core application
Contributions:6 PRs, 17 pushes, 10 branches in 3 years 11 months
dotnetaspsqlunit-of-workefcore
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