A cross-functional teams developer works with a diverse team of experts from different domains like marketing, product management, design, and quality assurance to build a product or solution. They are responsible for coding, debugging, and testing software applications, often using different programming languages. They collaborate closely with other team members to understand the project requirements, provide technical guidance, and contribute to decision-making processes. They also help in problem-solving, ensuring that the team's work aligns with the organization's objectives. They play a crucial role in driving innovation, fostering communication and ensuring seamless integration of various components.