A developer is an expert in advanced database systems. Hiring one will provide your business with a professional who can manage, manipulate, and analyze complex data efficiently. They can design robust database architectures, enhance data security, and optimize system performance. Their skills in SQL, data mining, and big data technologies can drive data-driven decision making, streamlining operations and boosting profitability. They can also handle database integration, ensuring seamless data flow across different applications. Hence, a developer can be a vital asset for any data-intensive business.