A Client Integration Developer primarily works on integrating a company's services or software solutions into client systems. They design, code, and implement integration solutions based on client needs and technical requirements. They work closely with clients to understand their business processes, troubleshoot integration issues, and ensure seamless data exchange between systems. They also perform testing, maintenance, and upgrades of the integration solutions. Their role involves extensive collaboration with internal teams and external clients, requiring strong technical skills in programming languages and integration tools, as well as excellent communication and problem-solving abilities.