Dennis Titze developed an automated mobile security testing capability for the bitrise-io/bitrise-steplib repository, delivering a new step that scans Android and iOS applications for vulnerabilities using AppSweep. He integrated this feature into the CI/CD pipeline through YAML configuration, enabling early detection of security issues during mobile app builds. The work involved DevOps practices, secure coding, and end-to-end validation to ensure reliable adoption. By embedding automated vulnerability checks directly into the workflow, Dennis improved the security posture and feedback cycle for mobile releases. The project demonstrated depth in CI automation, mobile security testing, and versioned step releases within a production environment.