A 3GPP job typically involves working with the standards and technologies defined by the 3rd Generation Partnership Project (3GPP), which develops protocols for mobile telecommunications, including 4G LTE, 5G, and beyond. Professionals in this field may work on network architecture, protocol development, system testing, or regulatory compliance. Roles can be found in telecom companies, chipset manufacturers, network equipment providers, and research institutions. Strong knowledge of wireless communication protocols and industry standards is usually required.