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Third Class Stationary Engineer Jobs (NOW HIRING)

Melwood

First Class Stationary Engineer

Germantown, MD · On-site

The First-Class Stationary Engineer is located in Gaithersburg, MD and operates, monitors, maintains, and repairs industrial utility plant equipment that provides steam generation, chilled water ...

Steam SOS

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Stationary Engineer - Massachusetts Licensed

Cambridge, MA · On-site

$60 - $70/hr

Valid Massachusetts Stationary Engineer License (1st, 2nd, or 3rd Class) OR High-Pressure Boiler Operator License Required * Flexibility: Open to full-time or part-time operators working flexible ...

Steam SOS

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Stationary Engineer - Massachusetts Licensed

Cambridge, MA · On-site

$60 - $70/hr

Valid Massachusetts Stationary Engineer License (1st, 2nd, or 3rd Class) OR High-Pressure Boiler Operator License Required * Flexibility: Open to full-time or part-time operators working flexible ...

SteamSOS

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Stationary Engineer - Massachusetts Licensed

Salem, MA · On-site

$60 - $70/hr

Valid Massachusetts Stationary Engineer License (1st, 2nd, or 3rd Class) OR High-Pressure Boiler Operator License Required * Flexibility: Open to full-time or part-time operators working flexible ...

SteamSOS

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Stationary Engineer - Massachusetts Licensed

Salem, MA · On-site

$60 - $70/hr

Valid Massachusetts Stationary Engineer License (1st, 2nd, or 3rd Class) OR High-Pressure Boiler Operator License Required * Flexibility: Open to full-time or part-time operators working flexible ...

Kaleida Health

Stationary Engineer

Buffalo, NY · On-site

Stationary Engineer Class 1 upon hire. Working Conditions Essential: * Weight Requirement - Heavy (up to 100 lbs) Job Details Standard Hours Bi-Weekly : 80.25 FTE: 1.070000 Weekend/Holiday ...

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How much do third class stationary engineer jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for third class stationary engineer in the United States is $37.14, according to ZipRecruiter salary data. Most workers in this role earn between $28.61 and $44.47 per hour, depending on experience, location, and employer.

What is a third class stationary engineer?

Third Class Stationary Engineers are professionals responsible for operating and maintaining stationary engines, boilers, and other mechanical equipment in buildings and industrial facilities. They ensure that heating, cooling, and ventilation systems function efficiently and safely. A Third Class license typically allows them to work on certain sizes and types of boilers and equipment as regulated by state or local authorities. Their duties include monitoring equipment, performing routine maintenance, and troubleshooting mechanical issues. They must also adhere to safety regulations and may be required to keep detailed records of their work.

What are the key skills and qualifications needed to thrive as a third class stationary engineer?

To thrive as a Third Class Stationary Engineer, you need a solid understanding of boiler operation, mechanical systems, and safety procedures, typically supported by a valid Third Class Stationary Engineer license. Familiarity with control systems, HVAC equipment, and digital monitoring tools is often required. Strong problem-solving skills, attention to detail, and effective communication help engineers respond quickly to issues and work well within facility teams. These competencies ensure the safe, efficient, and reliable operation of building systems critical to occupant comfort and safety.

What are some typical challenges faced by third class stationary engineers during a shift, and how can they be managed?

Third Class Stationary Engineers often face challenges such as unexpected equipment malfunctions, maintaining optimal boiler performance, and managing multiple systems simultaneously. To handle these effectively, engineers rely on strong troubleshooting skills, a solid understanding of safety protocols, and clear communication with maintenance and supervisory staff. Staying up-to-date with preventive maintenance schedules and promptly addressing minor issues can help prevent larger problems, ensuring smooth operations throughout the shift.

What is the difference between Third Class Stationary Engineer vs Second Class Stationary Engineer?

AspectThird Class Stationary EngineerSecond Class Stationary Engineer
Required CertificationsThird Class license, some experienceThird Class license plus additional experience and exams
Work EnvironmentSmall to medium facilities, boilers, HVAC systemsLarger facilities, more complex systems
Employer & Industry UsageHospitals, schools, small industrial plantsLarge commercial buildings, manufacturing plants

The main difference between a Third Class Stationary Engineer and a Second Class Stationary Engineer lies in certification requirements and the complexity of systems managed. A Second Class Engineer typically has more experience and handles larger, more complex facilities compared to a Third Class Engineer. Both roles are essential in maintaining safe and efficient operations within various industrial and commercial settings.

Are third class stationary engineers in demand?

Third class stationary engineers are generally in demand in facilities such as hospitals, commercial buildings, and industrial plants that require licensed operators to manage heating, cooling, and power systems. Employment opportunities depend on regional industry needs, licensing requirements, and the availability of certified personnel, with steady demand in areas with aging infrastructure or expanding facilities.

Where do third class stationary engineers make the most money?

Third class stationary engineers tend to earn higher wages in regions with a higher cost of living and strong industrial or institutional sectors, such as large urban areas or states with active manufacturing and energy industries. Salary levels are also influenced by experience, certifications, and the complexity of the facilities they operate in.
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Third Class Stationary Engineer jobs near you
Infographic showing various Third Class Stationary Engineer job openings in the United States as of August 2026, with employment types broken down into 67% Full Time, 32% Part Time, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $77,249 per year, or $37.1 per hour.

First Class Stationary Engineer

Melwood

Germantown, MD • On-site

Full-time

Posted 13 days ago

Job description

The First-Class Stationary Engineer is located in Gaithersburg, MD and operates, monitors, maintains, and repairs industrial utility plant equipment that provides steam generation, chilled water production, compressed air, and electrical generation services. This position supports 24-hour operation of critical infrastructure systems while ensuring safe, efficient, and uninterrupted utility plant performance.

Essential Duties and Responsibilities 

  • Operate and monitor high-pressure steam generation equipment and associated auxiliary systems. 
  • Maintain proper steam pressure, water levels, feedwater controls, and combustion efficiency. 
  • Conduct chemical testing, water treatment activities, and blowdown adjustments required to maintain system performance. 
  • Operate and monitor chilled water production systems, cooling towers, heat exchangers, and associated distribution equipment. 
  • Operate and maintain air compressors, air dryers, and compressed air distribution systems. 
  • Operate and monitor combined heat and power (CHP) or cogeneration equipment, including associated steam and electrical generation systems. 
  • Perform preventive maintenance, inspections, troubleshooting, and corrective repairs on plant equipment. 
  • Troubleshoot and repair digital, pneumatic, and electrical control systems. 
  • Repair pumps, valves, piping systems, and related mechanical equipment. 
  • Monitor system alarms and respond to abnormal operating conditions and emergencies. 
  • Maintain accurate operating logs, maintenance records, inspection reports, and shift turnover documentation. 
  • Perform housekeeping duties to maintain safe and orderly work areas. 
  • Comply with all safety requirements, lockout/tagout procedures, PPE requirements, and operational standards. 
  • Remain onsite during assigned shifts and participate in rotating schedules, weekends, holidays, and approved overtime coverage as required. 

Equipment Responsibilities 

  • High-pressure steam boilers and associated feedwater systems. 
  • Centrifugal chillers and chilled water production systems. 
  • Cooling towers and condenser water systems. 
  • Air compressors and compressed air systems. 
  • Combined heat and power (CHP) / cogeneration equipment. 
  • Pumps, valves, heat exchangers, control systems, and ancillary utility plant equipment. 

Minimum Qualifications 

  • Current Maryland Grade 1 (First-Class Stationary Engineer) License required. 
  • Current EPA Universal CFC Certification required. 
  • Minimum two (2) years of independent operating experience as a First-Class Stationary Engineer on comparable industrial equipment. 
  • Experience with industrial boiler operations, central utility plant systems, chilled water production, and cogeneration systems. 
  • Ability to diagnose and repair mechanical, electrical, and control system problems. 
  • Working knowledge of computerized control systems, pneumatic systems, and electrical controls. 
  • Ability to obtain and maintain all required site access credentials and security clearances. 
  • Ability to work rotating shifts in a 24/7 operating environment. 

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