I am a systems software architect with over 15 years of experience in software design and management
Here are some interesting open source projects I have worked on...
Azure Events is command-line utility that provides a convenient means to subscribe to resource specific Azure cloud health event notifications.
Template code for an Azure function and Application Insights to monitor and report on the queue depth of your Azure Service Bus queues and topics
(A horrible name I know, but a pretty useful app)
A handy utility to easily manage repetitive text formatting and processing tasks without the need for any custom scripting.
SQL Build Manager is an all in one tool for building and maintaining a package of SQL scripts to manage builds and updates to your SQL Server database.
A simple end user utility to query user and group information out of Active Directory
Honestly, if you are still using Subversion, I recommend you migrate to Git, but if you don't want to migrate, this is a great tool to easily implement pre and post-commit hooks on a Windows machine
(The link is to an old site, yet to be migrated)