About the Role Penn Tank Lines is hiring a full-time Diesel Mechanic to inspect, maintain, and repair heavy-duty trucks in support of safe, reliable fleet operations. This role is well suited for someone who takes a careful, hands-on approach to mechanical work, follows established shop procedures closely, and delivers consistent quality across recurring maintenance and repair tasks. Core Responsibilities Perform diagnostics, inspections, and preventive maintenance following established shop procedures and safety standardsRepair or replace major components, including engines, transmissions, brakes, and electrical systemsConduct test drives and make system adjustments based on performance standards and operating requirementsComplete accurate, timely service documentation in accordance with company and regulatory requirementsSupport overall shop operations by maintaining equipment readiness, following safety policies, and contributing to reliable fleet uptimeWork closely with team members to coordinate repairs and maintain consistent service quality