A method, a network device, and a non-transitory computer-readable storage medium are described in relation to a hybrid network slicing service. The hybrid network slicing service may enable the initial configuration of a network slice according to network slice requests that may include customized and user-specified network performance criteria. The hybrid network slicing service may enable network slice requests to specify selection of network resources and use/availability based on entity-based criteria including end device and/or application specific associations. The hybrid network slicing service may optimize network slice configurations and generate network slice templates.