A DevOps engineer plays a pivotal role in a tech company by bridging the gap between development and operations teams. Their primary responsibilities include automating processes, managing infrastructure, and enhancing collaboration throughout the software development lifecycle. By implementing Continuous Integration and Continuous Delivery practices, DevOps engineers help ensure that software is delivered more rapidly and reliably. They also monitor system performance and troubleshoot issues in real-time, contributing to improved efficiency. Ultimately, the DevOps role fosters a culture of continuous improvement and innovation within the organization.