The main goal of DevOps is to organize software development environments, physical environments, collaboration of teams and processes in such way to ensure the rapid, frequent, and reliable release of the new software.

At the designing stage, DevOps engineer helps to identify the infrastructure requirements. During the development and testing, they are occupied with deployment, integrations, and load (stress) testing in order to find out if the software environment is ready.

However, DevOps engineers do not usually work on the project from scratch. To be more precise, they collect the information about the initial changes to existing code versions. While working with already existing code, they obviously must be proficient in languages this code is written in. And further, if there any system administration needs or testing is required, DevOps architect must understand these niches as well. Most commonly, DevOps engineers must understand the code well, so they could review the existing code, make changes if needed, improve it as per client’s needs, deploy it, apply automate testing, assure seamless release and updates.