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3Rd Class Engineer Jobs in Boston, MA (NOW HIRING)

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must hold a Massachusetts Third Class Engineers License and have 3+ years of relevant experience. Competitive hourly pay and comprehensive benefits offered. Responsibilities: * Operate, monitor, and ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must hold a Massachusetts Third Class Engineers License and have 3+ years of relevant experience. Competitive hourly pay and comprehensive benefits offered. Responsibilities: * Operate, monitor, and ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must hold a Massachusetts Third Class Engineers License and have 3+ years of relevant experience. Competitive hourly pay and comprehensive benefits offered. Responsibilities: * Operate, monitor, and ...

System One

Utilities 3rd Engineer

Quincy, MA · On-site

$28 - $42/hr

Must hold a Massachusetts Third Class Engineers License and have 3+ years of relevant experience. Competitive hourly pay and comprehensive benefits offered. Responsibilities: * Operate, monitor, and ...

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 ...

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 ...

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Showing results 1-20

All Jobs3Rd Class Engineer Jobs3Rd Class Engineer Jobs in Boston, MA

3Rd Class Engineer information

See Boston, MA salary details

$13

$35

$52

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

As of Aug 7, 2026, the average hourly pay for 3rd class engineer in Boston, MA is $35.79, according to ZipRecruiter salary data. Most workers in this role earn between $24.70 and $44.26 per hour, depending on experience, location, and employer.

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 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 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 near Boston, MA are hiring for 3Rd Class Engineer jobs? Cities near Boston, MA with the most 3Rd Class Engineer job openings:
3Rd Class Engineer jobs near you
Infographic showing various 3Rd Class Engineer job openings in Boston, MA as of August 2026, with employment types broken down into 97% Full Time, and 3% Contract. Highlights an 82% In-person, 9% Hybrid, and 9% Remote job distribution, with an average salary of $74,440 per year, or $35.8 per hour.

Per Diem Fireman

Building Technology Engineers, Inc.

Cambridge, MA • On-site

Part-time

Re-posted 9 days ago

Job description

About Us

We offer a single-source solution for a complete range of facilities services, including equipment repair and replacement, preventive and predictive maintenance, and facility and equipment operations. We manage, service, and maintain the sophisticated facilities and systems that help our clients keep their competitive edge.

Job Summary

Operate,  monitor and repair boiler plant under the direction of  Massachusetts 3rd Class Stationary Engineer.  Carry out preventive maintenance tasks as scheduled or requested.  Communicates with Chief Engineer and Facility Manager on a regular basis generates logs and/or reports as required

  • Reports to EFS Account Manager or Stationary 3rd Class Engineer (MA).
  • Cooperates with and assists others in a common effort to promote goodwill and Company growth.
  • Perform additional duties as requested by the Stationary 3rd Class Engineer or Client representative.
    • Essential Duties & Responsibilities
  • Holds a current license as a 2nd Class Fireman (MA).
  • Ability to operate valves and associated HVAC components.
  • Ability to climb 20 feet on a ladder maintaining balance to perform work/repairs.
  • Knowledge of HVAC equipment to enable proper servicing and repairs.
  • Ability to effectively communicate with customers/tenants orally or in print.
  • Operate boiler plant
  • Perform calculations for utility use, watch steam etc.
  • Assist any licensed tradesperson as required.
  • Make recommendations to supervisor on any defective equipment in his/her area of responsibility.
  • Keep accurate time sheets.
  • Submit as required all logs and report for all work done.
  • Repair and troubleshoot gas and oil-fired burners, HVAC equipment and related controls as applies.
  • Make periodic building rounds to check all boiler plant equipment and keep accurate log sheets as required.
  • Ensure safe working conditions are being maintained in areas under his/her care, reporting any safety violations to supervisor.
    • Qualifications
  • Minimum 3 to 5 years direct experience in boiler operations and maintenance.
  • State issued 2nd Class Fireman License
  • Strong communication skills both written and verbal along with good customer service skills.
    • Equal Opportunity EmployerAs a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/DisabledAffirmative Action Policy

    Please review our Affirmative Action Policy.

    Notice to Prospective EmployeesNotice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine. EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR's normal application process - it is probably fraudulent.Geographic Disclosure

    #EFS

    Employment Type: PART_TIME

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