A project manager in software development oversees the entire project lifecycle, ensuring that goals align with business objectives. They facilitate communication between stakeholders, including clients and the development team, to clarify requirements and expectations. Project managers are responsible for planning, monitoring progress, managing resources, and adhering to timelines, budgets, and quality standards. They also mitigate risks and address challenges that may arise during the project. By employing tools and methodologies such as Agile or Scrum, project managers strive to foster collaboration and maintain focus on delivering high-quality software products efficiently.