Segment Alignment Maintenance Systems (SAMS). Assist the Optics Team Lead in maintaining and repairing SAMS. Maintain all SAMS hardware in the mirror array, including debugging and replacing bad sensors and/or analog and digital electronics modules, maintaining sensor alignment, and repairing broken metal glass bonds for mounting sensors to mirror substrates. Mirror Segment Swaps. Responsible for removing mirror segments and replacing them with freshly coated segments. Set up the segments to criteria that are a function of their position in the array. Assist in rough aligning segments after installation. Keeps accurate logs for alignment and communicates these segment swaps to the night staff. Mirror Recoating. Prepare mirror segments for recoating by stripping mirror coatings and cleaning segment substrates. Evaluate the segments before and after this process.Mirror Actuators. Maintain mirror actuator zero adjustments and troubleshoot both the actuators and actuator controllers. Perform in-situ CO2 mirror cleaning and maintain the CO2 mirror cleaning equipment. Measure and process mirror segment reflectivity to determine the schedule and sequence of mirror segment swapouts and segment recoating. Optical Coating Maintenance. Assist the Optics Team Lead in optimizing routine maintenance procedures and improving the quality of optical coatings. This includes the operation and maintenance of metrology equipment used in verifying coating reflectivity, coating thickness, and coating adhesion to the substrates. Optomechanical Components. Disassemble, re-assemble, install, and align optical and optomechanical components as part of routine maintenance of all telescope's optomechanical sub-assemblies. This includes cleaning and maintaining highly specialized equipment such as the Wide-Field Corrector and Primary Focus Instrument Package optics.Spares. Manage spare part levels for all optomechanical sub-assemblies, including cleanroom and coating system consumables.Administrative. Attend and constructively participate in various technical and staff meetings. Submit a daily summary of tasks performed to the supervisor and the HET Facility Manager. Provide progress reports on HET operations to observatory management.Performs other functions as assigned to meet business requirements. Staff living on-site in the residential community are considered essential employees as determined by the HET Facility Manager and the Observatory Superintendent. They will be required to serve on the Observatory Emergency Response teamERT" and perform tasks to help respond to emergencies, such as fire, medical, hazardous material, or other emergencies threatening or interfering with the facility's normal operations.