Hiring an ArcServer developer brings in a professional with expertise in Geographic Information System (GIS) technology. They can help you manage, visualize, and analyze your geographical data, which can be crucial for businesses dealing with location-based services, real estate, logistics, or environmental research. They can create maps, integrate with other software, and develop custom applications, providing valuable insights for decision-making processes. Their skills can lead to improved efficiency, better strategic planning, and a competitive edge for your business.