Ability to: assign, prioritize, schedule, and delegate work; explain technical concepts to others; provide constructive feedback; direct, train, and evaluate the performance of staff; enforce safety practices; work independently; read and interpret engineering plans; collect, calculate, and adjust mathematical computations such as distances, traverses, and elevations; analyze data; operate and maintain complex precision surveying instruments, engineering calculators, and personal computers; perform difficult algebraic, geometric, trigonometric, and precise engineering calculations; communicate effectively orally and in writing; and establish and maintain cooperative working relationships with County staff, engineers, developers, contractors, and the general public. Communicate directly and effectively with customers under demanding conditions that include high work volume, firm deadlines, confrontational situations, disputed interpretations, and complex explanations to individuals with diverse levels of technical expertise.