A Location Based Services (LBS) developer designs, builds, and maintains applications that deliver services based on a user's geographical location. They utilize GPS technology, geofencing, and other geolocation methods to provide real-time data or information tailored to a user's location. Tasks may include creating navigation apps, location-based advertising, or tracking systems. They work with APIs, databases, and mobile platforms, ensuring the accuracy, privacy, and security of location data. They also troubleshoot issues, optimize performance, and continually update applications to enhance user experience and meet evolving needs. They collaborate closely with other developers, designers, and stakeholders.