Jeremy Kreutzbender
Product Engineer
Hello from Portland, OR and welcome to my website! My software journey currently has me learning as much as I can about delivering great user experiences through product engineering.
Latest Blog Posts
Controller Tests with RSpec and Rails 8 Authentication
How to authenticate a User in Controller tests when using RSpec and Rails 8 authentication.
My Thoughts and Experiences with Vibe Coding (Mid 2025)
I've spent a bit of time doing some vibe coding and I wanted to share my thoughts about what went well and what didn't go well.
GitHub CoPilot Instructions Can Catch Ruby On Rails N+1 Queries
A new feature for GitHub CoPilot, called Instructions, can be used to catch N+1 queries in Ruby on Rails applications. It can even leave comments on Pull Requests when it finds them!
Preloading Nested Active Record Associations Syntax
Exploring a lesser known syntax for preloading nested Active Record associations.
Using PostgreSQL Functions with Rocicorp's Zero and Ruby on Rails
Zero updates our database directly from the UI and we can't rely on callbacks like 'before_save' when using it. Let's explore different ways to manage data requirements.