The main responsibility of a DevOps Engineer is to create pipelines to deliver tools and stacks for software development teams. The main responsibility of the Build and release engineers is to use automation tools, like Jenkins, Version One, or Ansible, to make building, finding bugs, and releasing the program faster.
The following are the role and responsibilities of a DevOps engineer:
Creating style guides for software and applications
Maintaining company goals for the product's performance
Tracking issues in the deployment of programs and updates
Understanding tools Bamboo, Chef, and Puppet
The following are the role and responsibilities of a build and release engineer:
Using OS such as Linux or Unix in the build process
Reviewing code for the software build architecture
Creating plugins that will empower the automation process
Finding solutions to automation issues
If you are looking for an online course to learn DevOps, I would recommend this DevOps Online Training course by Intellipaat that provides instructor-led training, hands-on projects, and certification.
Also, watch this video on DevOps Engineer: