Stationary Engineer (Senior) (#874030)
$45.46-$55.26 Hourly / $7,880.04-$9,578.20 Monthly / $94,560.43-$114,938.39 Yearly
Apply as a Transfer to Comparable Class applicant


Under direction, performs the most difficult and/or specialized technical assignments which require considerable knowledge of trade skills required to, operate, repair, and maintain heating, cooling, ventilation and refrigeration systems, and building controls.  Employees in this advanced journey level class are responsible for the operation, maintenance, and repair of the County Cogeneration Plant and/or providing lead direction to Stationary Engineers and Building Maintenance Assistants.  Positions may be assigned to the County Cogeneration Plant or other County Facilities.


This class is distinguished from the:
  • Facilities Operations Manager class which plans, organizes directs and oversees
    maintenance programs and operations for County facilities, including all building systems and components; custodial and landscape maintenance, construction and remodel projects, building security, energy management, cogeneration power distribution plant operations and maintenance.
  • Facilities Operations Supervisor class which is a first line supervisory class responsible for the work unit engaged in the operations and maintenance of County owned buildings and support equipment, and which, depending on the unit supervised, may include heating, air conditioning, ventilating, refrigerating, electrical, plumbing, carpentry.
  • Cogeneration Industrial Engine Mechanic class which under direction performs work in operating, maintaining, inspecting, repairing of internal combustion natural gas engines/generators and large industrial stationary engines, machinery, pump engines, motors, generators, and related equipment at County’s Cogeneration Plant.
  • Stationary Engineer class which under direction operates, repairs, and maintains heating, cooling, ventilation and refrigeration systems and controls. Employees in this journey level class are responsible for operating, maintaining and repairing building support equipment in assigned County Facilities. Positions may be assigned to work in assist the County Cogeneration Plant.

Supervision Received and Exercised

  • Supervision is provided by a Facilities Operations Manager and/or Facilities Operations
  • No supervision is exercised over others.
  • Provides lead, technical expertise, consultation, and advice to Stationary Engineers and/or Building Maintenance Assistants.

Essential Duties

  • Performs lead duties over Stationary Engineers and Building Maintenance Assistant, such as:
    • administers and providing on–the–job training;
    • passing on instructions received from supervisor and initiating work;
    • distributing work among staff;
    • monitoring status of work being performed and keeping supervisor informed of work
    • reviewing work of assigned staff, informing supervisor of customer feedback, work
      quality, conduct problems, and providing input on performance to supervisor;
    • interpret administrative directions and incorporate into policies and procedures;
    • ensuring work is performed safely and efficiently;
    • assist with periodic inspections of County facilities to determine operating condition, safety, and deficiencies.
  • Perform duties associated with the operation and maintenance of the Cogeneration Plant and/or other County buildings such as the following:
    • starts, stops and adjusts automatic and manual low and high voltage, electric,
      electronic automated and pneumatic controls to operate the heating, cooling,
      ventilating and refrigeration systems within recommended or prescribed operating
    • reads meters and gauges or automatic recording devices to verify operating conditions
      and records data such as temperature of equipment, hours of operation, fuel
      consumed, temperature or pressure, water levels, analyses of flue gases, and voltage
    • adjusts manual controls or overrides automatic controls to bring equipment into
      recommended or prescribed operating ranges, switch to back up equipment or
      systems, or shutdown equipment;
    • analyzes, trends and maintains equipment by testing, balancing and making
      adjustments to tightening fittings, repacking bearings and valves, replacing
      compressors, motors, pumps, value gaskets, recorders and gauges, and cleaning or
      replacing burners or other components using hand and power tools; oils and lubricates
      equipment; makes repairs to all associated equipment related to the HVAC and air
      distribution systems, including intakes and exhaust;
    • performs water treatment analysis on chilled, condenser and/or hot water and steam to
      maintain chemical control limits of the water, adds chemical additives, such as water
      softeners into treatment tank to prevent scale build up and to clean boiler lines;
    • performs visual inspections and preventative maintenance at determined intervals to
      detect malfunctions and/or the need for repairs;
    • maintain and repair decorative fountain controls;
    • performs preventative maintenance, repairs, and replacement of mechanical systems
      and components, including HVAC, refrigeration, and HVAC related pneumatic
    • visually inspects equipment at periodic intervals to detect malfunctions or the need
      for repairs, adjustments, or lubrication;
    • inspects, repairs, operates mechanical and electrical equipment operating
      parameters and conditions related to HVAC, refrigeration and mechanical systems;
    • monitors, troubleshoots and maintains computer building management systems
      including operating systems, pressures, temperatures, trends, schedules, control
      logs, and alarms;
    • performs minor programming adjustments to automated controls;
    • oversees the maintenance performed on generator engines, evaluates engine
      operations and coordinates proper repair timelines as it pertains to the Cogeneration
    • perform complex and routine computer program modifications, commodity price
      updates, report generation, system operation changes and back-up as it pertains to
      the Cogeneration Plant;
    • provide assistance, compile reports, advise and oversee services performed by
      outside contractors, vendors, government agencies and P.G.&E as it pertains to the
      Cogeneration Plant;
    • records operation and maintenance actions taken during particular shift;
    • understand and interpret blueprints and building reference manuals;
    • coordinates with and oversees the work of vendors and contractors;
    • maintains documentation for compliance with CAL/OSHA standards; keeps records
      of disbursement inventories; and maintains adequate stock of supplies and
      equipment related to heating and air conditioning repair and maintenance;
    • maintains the cleanliness of air vents in secured facilities that requires the use of a
    • performs the same duties as the work being led;
    • coordinates work efforts of inter-related building systems with colleagues;
    • performs other duties as assigned;

Knowledge, Skills & Abilities

Knowledge of:
  • Theory and practices of heating, ventilating, air conditioning, electricity, hydraulics, thermal dynamics refrigeration and electronics.
  • HVAC operations, maintenance and repair to include minor or major programming.
  • Installation, maintenance, operation, repair, and balancing of environmental systems.
  • drafting and blueprint reading.
  • Pneumatic and electronic controls.
  • Tools and equipment commonly used in the stationary engineering field.
  • Chemistry, physics, and water treatment practices as they apply to stationary engineering equipment.
  • Automated controls systems operations and minor programming of equipment commonly found in public buildings.
  • Safe shop practices.
  • Standard and accepted principles of leadership, on-the-job training, and work review.
  • Laws, regulations and policies applicable to work performed.
  • Customer service techniques.
  • English composition, spelling, grammar, vocabulary, and punctuation for both written and oral communications.
  • Basic mathematics to determine amount of materials needed for a job, including but not limited to square footage of areas to be worked on.
  • Modern office equipment to include: computers, smartphones and related software applications.
  • Construction safety protocols and regulations.
Skill and/or Ability to:
  • Distribute work and provide work directions, review work performance and conduct of staff, and provide on-the-job training to staff led.
  • Understand, interpret and explain regulations and policies governing assigned program operations.
  • Identify and analyze problems and implement changes.
  • Make decisions and independent judgments.
  • Organize and prioritize work assignments.
  • Read and interpret building plans, blueprints, instructional mechanical plans, and related schematics.
  • Diagnose mechanical operating troubles.
  • Maintain accurate records and reports and documents any action taken.
  • Comprehend and follow written and verbal instructions.
  • Establish and maintain cooperative working relationships.
  • Demonstrate tact and diplomacy.
  • Determine the appropriate course of action in in stressful and/or emergency situations.
  • Communicate effectively both verbally and in writing
  • Collect and analyze data to identify needs and evaluate equipment effectiveness, draw logical conclusions and make appropriate recommendations and adjustments.
  • Understand and analyze testing procedures and test results.
  • Make routine arithmetical calculations and analysis.
  • Research regulations, procedures and technical reference materials relating to equipment.
  • Use modern office equipment to include computers, smart phones, and related software applications.
  • Operate and maintain a variety of tools and forklifts properly and safely

Education and Experience

  • Education: High School Diploma, GED, or equivalent; AND
  • Experience: Five (5) years of experience including three (3) years of apprenticeship training in a program or under a journey worker in heating, ventilating, air conditioning and/or refrigeration AND Two (2) years of full-time paid experience at the level of a journey worker in heating, ventilating, air conditioning and/or refrigeration.
  • Journey worker certificate as a Stationary Engineer is highly desirable.


  • Applicants are required to possess, or obtain prior to employment, a valid California Driver’s License, Class C.
  • Applicants are required to possess a current Environmental Protection Agency, Section 608, Universal Certification.
    Note: All licenses, certificates and registrations must be kept current while employed in this class.


  • Mobility and Dexterity: This class typically requires employees to perform the following: (1)balancing, stooping, kneeling, reaching, crawling, fingering, grasping, and repetitive motion; (2) climbing and working safely on ladders and step ladders with a total weight that does not exceed the weight capacity of the ladder or the highest rated capacity of the harnesses and lanyards used for fall protection; and (3) standing or walking during normal work hours on uneven surfaces.
  • Lifting, Carrying, Pushing and Pulling – Heavy work: This class typically requires employees to perform the following: exerting up to 100 pounds of force occasionally with assistance, and/or up to 50 pounds of force frequently, and /or up to 20 pounds of force constantly to move objects.
  • Vision: This class requires employees to have close visual acuity, with or without correction, to prepare and analyze data and figures, view a computer terminal, read, and to distinguish between normal and off shade colors and to read gauges and meters in dimly lighted areas etc. Employees are also required to have depth perception and good eye-to-hand coordination in order to operate a motor vehicle and to operate a variety of hand and power tools.
  • Hearing/Talking: This class requires employees to perceive the nature of sounds at normal speaking levels with or without correction, and have the ability to receive detailed information through oral communication. Employees in this class are also required to be able to communicate to express or exchange ideas. Detailed or important instructions must occasionally be conveyed to others accurately, loudly, and/or quickly.
  • Other: This class typically requires employees to have sufficient sense of smell, and touch to observe equipment functions for normal and abnormal occurrences.
  • Outdoor Work: Employees in this class will often be working outdoors and thus may be
    subject to exposure to intense noises, fumes, odors, pollens, dust, inadequate lighting, and to unpleasant field conditions including rainy, windy, cold, or hot weather; may be exposed to e.g. insects, rodents, snakes, bees, wasps, spiders, ants, etc.
  • Work in an Industrial Area: Employees in this class will often be working in an industrial
    area and thus will be subject to exposure to moving mechanical parts, electrical currents, toxic agents, fuel, oil, gases, smoke, fumes, odors, dust, and vibrations.
  • Employees may be subject to injuries when working with hand and power tools and equipment.
  • Traffic Hazards: Employees in this class will be required to operate a vehicle and thus may be subject to traffic hazards while driving.
  • Working at Heights: Employees in this class may be required to work at heights of 50-75 feet above the ground on equipment and structures.


  • Background Checks, Reference Checks and Physicals: The County will conduct a
    background check, a reference check and a physical on candidates prior to appointment to a position within this class.
  • Independent travel: Incumbents are required to travel independently, to perform work at other work sites, etc.
  • Hours of Work: Incumbents may be required to work weekends, holidays, irregular hours, on-call, and after normal business hours.
  • Drug and Alcohol Testing: Candidates applying for positions in this class are subject to, drug and alcohol testing as required under the Federal Omnibus Transportation Employee Testing Act of 1991. Testing of incumbents includes post-accident, as well as random and reasonable suspicion testing as required by law.

CLASS: 874030; EST: 3/1/1995;