Wastewater Heavy Duty Maintenance Mechanic

Job Description Summary Department - Regional Wastewater Reclamation Job Description OPEN UNTIL FILLED Job Type: Classified Job Classification: 5581 - Wastewater Heavy Duty Maintenance Mechanic Salary Grade: 11 Pay Range Hiring Range: $27.19 - $32.63 Per Hour  Pay Range: $27.19 - $38.06 Per Hour  Range Explanation: Hiring Range is an estimate of where you can receive an offer. The actual salary offer will carefully consider a wide range of factors, including your skills, qualifications, experience, education, licenses, training, and internal equity. Pay Range is the entire compensation range for the position. The first review of applications will be on 10/02/2026. Pima County Regional Wastewater Reclamation Department is looking for a dependable, skilled, and motivated Heavy Duty Maintenance Mechanic to join its Wastewater Treatment Division, a dedicated team of professionals who keep essential infrastructure running safely and efficiently every day. This is an opportunity to build a stable, long-term career while serving the community and protecting public health. In this hands-on role, you will maintain, troubleshoot, and repair heavy industrial equipment such as pumps, blowers, conveyors, gearboxes, hydraulic systems, and other critical plant machinery. We are seeking candidates who take pride in their work, value safety, and enjoy working in a team-oriented environment where reliability and craftsmanship matter. Pima County offers competitive pay, excellent benefits, retirement plans, and opportunities for advancement and ongoing training. If you are mechanically inclined, safety-driven, and ready to be part of a mission-focused organization, we encourage you to apply and grow your career with us. Essential Functions: As defined under the Americans with Disabilities Act, this classification may include any of the following tasks, knowledge, skills, and other characteristics. This list is ILLUSTRATIVE ONLY and is not a comprehensive listing of all functions and tasks performed by incumbents of this class. Work assignments may vary depending on the department’s need and will be communicated to the applicant or incumbent by the supervisor. Performs operational and preventive maintenance of complex heavy-duty industrial equipment and machinery utilizing hydraulics and pneumatics of systems involving pneumatic tanks, deep wells, air compressors, pneumatic actuators, wet wells, pumps and booster stations; Fabricates, constructs, installs, repairs and aligns heavy-duty industrial equipment and machinery such as deep well pumps, water pump and piping systems, horizontal and vertical drive centrifugal pumps, spherical, thrust, radial and line-shaft bearings on pumps and motors utilizing gas and electric welding; Performs critical repairs to complex systems, equipment and related features to maintain system integrity and functions in accordance with standards, rules and regulations, particularly those systems or equipment operated under permits or licenses granted by other governmental agencies; Interprets and applies required codes or standards to work situations; Interprets complex blueprints, schematics and diagrams to facilitate work; Prepares working sketches, drawings and estimates of resources required for assigned projects; Repairs or operates specialized equipment such as submersible pumps, speed increasers and decreases, blowers, conveyors, gear boxes, mixing equipment and industrial stationary engines; Demonstrates knowledge of precision measuring equipment such as micrometers and dial indicators; Coordinates equipment and system modifications or maintenance with operations and maintenance staff and supported facility managers or end-users, to assure minimal disruption of services and seamless customer services; Inspects, services and maintains common and specialized tools, equipment and vehicles used in performance of duties; Utilizes and ensures fellow staff utilizes standard occupational safety practices and equipment; Maintains comprehensive records of work performed, modifications to equipment or systems and related operations logs; Prepares periodic and special reports for management on equipment, systems and/or facilities supported or maintained; Conducts on-the-job training of operators and maintenance staff;  May inspect and lead the work of equipment operators and maintenance staff. Minimum Qualifications: Five years of mechanical maintenance experience in the fabrication, installation or repair of large heavy-duty industrial mechanical equipment, deep well turbine pumps, submersible or centrifugal booster pumps. OR: Three years of experience with Pima County as a Wastewater Maintenance Specialist II performing mechanical maintenance work involving the fabrication, installation and repair of mechanical equipment and pumps. (Relevant experience and/or education from an accredited college or university may be substituted.) Qualifying education and experience must be clearly documented in the "Education" and "Work Experience" sections of the application. Do not substitute a resume for your application or write "see resume" on your application.   Preferred Qualifications: (Be specific in describing your experience in your application. Ensure the descriptions provided illustrate your competencies, specifically addressing the required and preferred qualifications.): Minimum six (6) years experience in industrial mechanical equipment, performing repairs and routine maintenance of industrial pumping systems, deep well turbine pumps, positive displacement pumps, submersible pumps, centrifugal pumps, booster pumps, gear boxes, plumbing, pipe fitting and compressor/blower maintenance. Minimum four (4) years experience in specializing and advanced maintenance repair, diagnose or trouble-shooting, construction, fabrication, on-the-job training, and preventative maintenance. Minimum four (4) exper