Credibility is a powerful tool in getting your DevOps teams to accept input and guidance from security.
How do you build credibility, show them you understand their tools and processes. Have you ever used Jenkins, or CircleCI, or even BitBucket, or GitHub?
If you don't have knowledge of their tooling, how can you expect them to know and use your tools and processes?
Check out the DevSecOps Hub for more jewels of wisdom and tips on how to practically apply DevSecOps in your organization.