State of Maryland


- Hourly / - BiWeekly /
- Monthly / $69,159.00-$116,011.00 Yearly






A DGS Stationary Engineer is the full performance level of technical and supervisory maintenance work in the Department of General Services as a chief operating engineer on a shift in a power plant with central station refrigeration or air conditioning equipment totaling 2500 tons or more and heating or process boilers totaling 500 HP and above.  Employees in this classification supervise Maintenance Mechanics and other staff.

Employees in this classification receive general supervision from a Maintenance Supervisor or other designated higher-level official.  Employees are assigned to day, evening, night or rotating shifts to include holidays and weekends and are subject to call in and overtime based on staffing needs.  Work involves the lifting of heavy mechanical equipment and apparatus and may be performed in areas of extreme heat and cold.

Positions in this classification are evaluated by using the classification job evaluation methodology.  This method compares the position’s assigned duties and responsibilities to the job criteria defined in the Nature of Work and Examples of Work sections of the class specifications.


Operates gas, oil-fueled, or electric boilers by automatic controls, adjusting air flow for good combustion;

Operates and maintains major heating and air conditioning equipment, auxiliary equipment, temperature and operating controls, electric generators, sewage plants and miscellaneous equipment;

Operates central station type reciprocating, centrifugal or absorption air conditioning and refrigeration equipment;

Operates mechanical systems by means of electronic and computerized equipment;

Operates and maintains emergency electric generators of 500 KW and above;

Operates vacuum and circulating pumps and water softeners;

Observes all safety control equipment and meters and makes necessary adjustments to assure safe and constant generation of required amounts of steam or high temperature hot water;

Maintains and adjusts automatic temperature controls, such as electric and pneumatic thermostats, humidistats, freezestats, fire stats, or dew point controllers;

Performs safety inspections as required of the boiler vessel and all related equipment;

Reports any unsafe operating conditions or interruptions in any services;

Keeps records and makes charts on boiler and chiller performance and of fuel and energy consumption;

Takes readings with appropriate instruments; Keeps the boiler room premises in a safe and neat condition;

Logs all adjustments;

May regenerate water softener and add chemicals to cooling tower condenser water and boiler to maintain proper PH or specific chemical concentrations;

May be required to repair or adjust control devices and repack and repair pumps, fans and compressors;

May be required to charge refrigerant system and lubricate rotating and oscillating equipment according to a prescribed schedule;

Performs other related duties.


Knowledge of the operation of electronic and computerized equipment;

Knowledge of the operations of high-pressure and high-temperature boilers, air conditioning compressors, chillers, and associated equipment;

Knowledge of the hazards, safety precautions and the tools, methods and practices used in maintaining and cleaning equipment;

Knowledge of the principles of electricity, hydraulics, mechanics and refrigeration;

Skill in operating boilers and air conditioning equipment;

Skill in maintaining electrical, mechanical and sanitary systems;

Skill in making mechanical repairs;

Skill in maintaining records concerning fuel consumption, maintenance services, repair actions and supplies;

Ability to schedule shift work for continual operation of plant;

Ability to supervise employees in the operation of equipment and general maintenance work.


Education:   Graduation from an accredited high school or possession of a State high school equivalency certificate.

Experience: Three years of experience as a Stationary Engineer 1st Grade.


1. Candidates may substitute additional experience up to four years as licensed first-grade engineer on a year-for-year basis for the required education.

2. Candidates may substitute U.S. Armed Forces military service experience as a non-commissioned officer in Utilitiesman classifications or Maintenance Supervisor, Maintenance Mechanic, or Utilities Chief specialty codes in the Equipment Maintenance field of work on a year-for-year basis for the required experience. 


Employees in this classification must possess and maintain a current license as a Stationary Engineer, 1st Grade from the State Board of Stationary Engineers.


1. Some positions in this classification are assigned duties which will require the candidates to be examined by a Physician.  After an offer of employment, candidates for such positions will be given a medical examination to certify the ability to perform the essential job functions.

2. Employees in this classification are subject to random substance abuse testing in accordance with Code of Maryland Regulation 17.04.09, Testing for Illegal Use of Drugs.


Class specifications are broad descriptions covering groups of positions used by various State departments and agencies. Position descriptions maintained by the using department or agency specifically address the essential job functions of each position.

This is a Skilled Service classification in the State Personnel Management System.  All positions in this classification are Skilled Service positions.  Some positions in Skilled Service classifications may be designated Special Appointment in accordance with the State Personnel and Pensions Article, Section 6-405, Annotated Code of Maryland.

This classification is assigned to Bargaining Unit A- Labor and Trades classes.  As provided by State Personnel and Pensions Article, Section 3-102, special appointment, temporary, contractual, supervisory, managerial and confidential employees are excluded from collective bargaining.  Additionally, certain executive branch agencies are exempt from collective bargaining and all positions in those agencies are excluded from collective bargaining.

Employees in this classification are eligible to receive overtime compensation.  An employee who works more than the normal workweek is entitled to be compensated for that overtime as provided by State Personnel and Pensions Article, Section 8-305.  

Date Revised

October 2, 2020 

Approved By

Director, Division of Classification and Salary

CLASS: 003466; REV: 10/2/2020;

Powered by JobAps