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3Rd Class Engineer Jobs in Massachusetts (NOW HIRING)

JLL

Central Energy Plant Operator

Andover, MA

Licensed operator (3rd Class engineer) who has less than a 2nd Class Engineer's license * Making progress toward a 2nd Class Engineer's License on a schedule mutually agreeable between Employee and ...

Merrimack Health

Boiler Plant Technician

Lawrence, MA · On-site

$28 - $38/hr

First, Second or Third Class Engineer * Experience in Boiler Room procedures Merrimack Health is a private, non-profit community hospital providing the Merrimack Valley and southern New Hampshire ...

Merrimack Health

Boiler Plant Technician

Lawrence, MA · On-site

$28 - $38/hr

First, Second or Third Class Engineer * Experience in Boiler Room procedures Merrimack Health is a private, non-profit community hospital providing the Merrimack Valley and southern New Hampshire ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must have a Commonwealth of Massachusetts Third Class Engineers License (REQUIRED). * 3+ years of experience working with high-pressure boilers and related equipment. * Ability to obtain Grade 3M or ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must have a Commonwealth of Massachusetts Third Class Engineers License (REQUIRED). * 3+ years of experience working with high-pressure boilers and related equipment. * Ability to obtain Grade 3M or ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must have a Commonwealth of Massachusetts Third Class Engineers License (REQUIRED). * 3+ years of experience working with high-pressure boilers and related equipment. * Ability to obtain Grade 3M or ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must have a Commonwealth of Massachusetts Third Class Engineers License (REQUIRED). * 3+ years of experience working with high-pressure boilers and related equipment. * Ability to obtain Grade 3M or ...

Merrimack Health

Chief Fireman

Methuen, MA · On-site

$46.79/hr

Massachusetts Third Class Engineer License. * 5 years minimum experience in steam power generation. * Demonstrates the ability to be thoroughly trained to meet organizational standards. * Thorough ...

Merrimack Health

Chief Fireman

Methuen, MA · On-site

$46.79/hr

Massachusetts Third Class Engineer License. * 5 years minimum experience in steam power generation. * Demonstrates the ability to be thoroughly trained to meet organizational standards. * Thorough ...

Steam SOS

Be Seen First

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

Be Seen First

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 ...

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Showing results 21-40

All Jobs3Rd Class Engineer Jobs3Rd Class Engineer Jobs in Massachusetts

3Rd Class Engineer information

See Massachusetts salary details

$13

$35

$52

How much do 3rd class engineer jobs pay per hour?

As of Aug 30, 2026, the average hourly pay for 3rd class engineer in Massachusetts is $35.86, according to ZipRecruiter salary data. Most workers in this role earn between $24.76 and $44.35 per hour, depending on experience, location, and employer.

What is a 3rd class engineer?

A 3rd Class Engineer, also known as a Third-Class Power Engineer, is a certified professional responsible for operating and maintaining industrial boilers, pressure vessels, and related equipment under the supervision of higher-class engineers. They work in settings such as power plants, manufacturing facilities, and heating plants to ensure safe and efficient operation of mechanical systems. To become a 3rd Class Engineer, individuals typically need to complete technical training, acquire hands-on experience, and pass a provincial or state certification exam. Their responsibilities include monitoring equipment, performing maintenance, troubleshooting issues, and adhering to safety regulations.

What are the key skills and qualifications needed to thrive as a 3rd class engineer, and why are they important?

To thrive as a 3rd Class Engineer, you need a solid understanding of mechanical systems, thermodynamics, and safety protocols, usually backed by a 3rd Class Engineer’s certificate or license. Familiarity with boiler operation, HVAC systems, and digital monitoring tools is often required. Strong problem-solving abilities, attention to detail, and effective communication help you respond quickly to technical issues and work well in a team. These skills and qualifications ensure safe, efficient plant operations and compliance with regulatory standards.

What are some common challenges faced by 3rd class engineers in their day-to-day work?

3rd Class Engineers often encounter challenges such as balancing preventive maintenance with urgent repair tasks, adapting to new technologies in building systems, and ensuring compliance with safety regulations. They may also be required to work in shifts or on-call, which can affect work-life balance. Collaborating effectively with senior engineers, building management, and other maintenance staff is essential for resolving complex issues and maintaining smooth facility operations.

What cities in Massachusetts are hiring for 3Rd Class Engineer jobs?

Cities in Massachusetts with the most 3Rd Class Engineer job openings:

3Rd Class Engineer jobs near you
Infographic showing various 3Rd Class Engineer job openings in Massachusetts as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $74,598 per year, or $35.9 per hour.

3rd Class Power Plant Engineer - Framingham

Department of Correction

Framingham, MA • On-site

Full-time

Re-posted 5 days ago

Job description

Duties:
Participates in the technical operation of a high-pressure steam plant to ensure that the power plant is operated and maintained safely and efficiently; operates, maintains, cleans, and repairs steam boilers and all auxiliary equipment in the power plant. Operates emergency generator on assigned shift, responds to emergency situations. Makes rounds of power plant, reads charts and gauges, inspects, and makes adjustments; keeps station daily log, recording charts and gauges; fuel oil/gas readings; maintains good housekeeping practices; performs related duties as required. Shift and Days off will vary; reports directly to the Chief Engineer
Comments:
This is a Civil Service position. Please note that salaries for union positions are determined according to the provisions of the respective collective bargaining agreement. Applicants must have no felony convictions, to include any actions defined in 5 U.S.C. 301; U.S.C. 509, 510; 42 U.S.C. 15601-15609. The Massachusetts Department of Correction shall not hire anyone who may have direct contact with incarcerated individuals, who has engaged in sexual abuse in a prison or other institution as defined in 42 U.S.C. 1997; or has been convicted of engaging or attempting to engage in sexual activity in the community facilitated by force, overt or implied threats of force or coercion, or if the victim did not consent or was unable to consent or refuse, or has been civilly or administratively adjudicated to have engaged in the activity described in the above paragraph. The agency shall consider any incidents of sexual harassment in determining whether to hire anyone who may have contact with incarcerated individuals or residents. The DOC urges bilingual applicants to apply.
Qualifications:
First consideration will be given to those applicants that apply within the first 14 days.
MINIMUM ENTRANCE REQUIREMENTS:
Possession of a Third Class or higher Stationary Engineers license based on standards established by the Massachusetts Department of Public Safety and pursuant to Chapter 146 of the Massachusetts General Laws.
Comprehensive Benefits
When you embark on a career with the Commonwealth, you are offered an outstanding suite of employee benefits that add to the overall value of your compensation package. We take pride in providing a work experience that supports you, your loved ones, and your future.
Want the specifics? Explore our Employee Benefits and Rewards!
An Equal Opportunity / Affirmative Action Employer. Females, minorities, veterans, and persons with disabilities are strongly encouraged to apply.
The Commonwealth is an Equal Opportunity Employer and does not discriminate on the basis of race, religion, color, sex, gender identity or expression, sexual orientation, age, disability, national origin, veteran status, or any other basis covered by appropriate law. Research suggests that qualified women, Black, Indigenous, and Persons of Color (BIPOC) may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage individuals who believe they have the skills necessary to thrive to apply for this role.

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