DevSecOps in Practice

Who This Guide Is For

I often use the word "developer" to refer to anyone who is involved in the software development lifecycle: developers, operations engineers, security engineers, and anyone else who is involved in delivering software. Not because I think that everyone should be a developer, but to avoid using multiple terms that can be long and cumbersome. However, I firmly believe that everyone involved in creating, deploying, and maintaining software should be an engineer, and it's not a matter of diploma or degree but of mindset.

In my deeply held opinion, an engineer is someone who is able to take a problem, break it down into smaller pieces, solve each piece separately, then play an active role at every stage to bring the greatest value to the solution. Perhaps I'm biased, but an engineer's mark is felt across every phase of the lifecycle—each step bearing their distinctive imprint. What happens when security engineers can't code, developers overlook security, or operations engineers don't grasp either domain? You end up with silos, blind spots, and vulnerabilities—a recipe for disaster waiting to happen.

The good news is that DevSecOps is designed precisely to break down those dangerous silos and blind spots. It doesn't demand that you know everything from day one, but rather encourages you to embrace learning through action. Think of it less like reading a textbook and more like mastering an instrument: the more you practice, the more proficient you become.

Details matter deeply in DevSecOps. Every configuration, every line of code, every automated script—they all carry weight and meaning. Small oversights can compound into significant vulnerabilities, while attention to detail can build remarkably resilient software. DevSecOps in Practice - A Hands-On Guide to Operationalizing DevSecOps at Scale