We’re seeking an experienced Principal Geotechnical Engineer to lead our Tucson, Arizona office as Business Unit Leader (Office Manager) and Principal-in-Charge. This role combines technical leadership, business development, and team management to drive operational and financial success.Key ResponsibilitiesOversee division operations, budgets, and workload planningServe as Principal-in-Charge on major projects, providing technical oversight and quality reviewMentor and guide project managers and technical staffManage client relationships, contracts, and project deliverablesTrack KPIs, financial performance, and implement corrective actions as neededSupport business development and strategic growth initiativesManage construction materials testing field and lab operations during the initial growth stage