Have you worked with CI tools like Jenkins, TeamCity, GitLab CI?

Yes, I have experience working with Jenkins, TeamCity, and GitLab CI. I have configured pipelines for automatic building, testing, and deploying applications. For example, in Jenkins, I created jobs with build and test stages, integrated with version control systems and notifications. In GitLab CI, I wrote .gitlab-ci.yml files to automate processes, including parallel tasks and deployment to staging and production.