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Class 4 Boiler Engineer Jobs (NOW HIRING)

Safari Circuits, LLC

$100 - $125/hr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer License. * 1 to 5 years of experience in engineering services, facility operations, maintenance engineering, or related technical ...

Koniag Services, Inc.

Operating Engineer

Charleston, SC · On-site

$80 - $100/hr

Posted Wednesday, August 12, 2026 at 4:00 AM Koniag Operations Services, a Koniag Government ... Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to ...

Koniag, Inc.

Operating Engineer

Charleston, SC · On-site

$65K - $88K/yr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to obtain upon hire * Minimum 3 years of experience in Engineering Services or facility operations

kgs

Operating Engineer

Charleston, SC · On-site

$65K - $88K/yr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to obtain upon hire * Minimum 3 years of experience in Engineering Services or facility operations

Koniag Services, Inc.

Operating Engineer

Arlington, VA · On-site

$80 - $100/hr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to obtain upon hire * Minimum 3 years of experience in Engineering Services or facility operations ...

kgs

Operating Engineer

Arlington, VA · On-site

$80K - $108K/yr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to obtain upon hire * Minimum 3 years of experience in Engineering Services or facility operations ...

Chugach Services

Boiler Mechanic

Fallon, NV · On-site

$34.05 - $47.22/hr

... class business services, while also making a difference for our Chugach shareholders. At CGS ... Follow instructions from boiler engineers and/or other staff, perform self-study, attend training ...

Chugach Government Solutions

Boiler Mechanic

Fallon, NV · On-site

$23.75 - $30.50/hr

... class business services, while also making a difference for our Chugach shareholders. At CGS ... Follow instructions from boiler engineers and/or other staff, perform self-study, attend training ...

Torrey Holistics

Boiler Mechanic

Fallon, NV · On-site

$60 - $80/hr

... class business services, while also making a difference for our Chugach shareholders.At CGS ... Follow instructions from boiler engineers and/or other staff, perform self-study, attend training ...

kgs

Operating Engineer

Charleston, SC · On-site

$65K - $88K/yr

Valid 3rd Class Steam and Hot Water Heating Boiler Engineer license (DC jurisdiction) or ability to obtain upon hire * Minimum 3 years of experience in Engineering Services or facility operations

Alutiiq

Facility Manager

North Charleston, SC · On-site

Minimum five (5) years of experience in Facility Operations Minimum three (3) years of experience in Engineering Services District of Columbia (DC) 3rd Class Steam and Hot Water Heating Boiler ...

St. Clair Hospital

Stationary Engineer

Pittsburgh, PA · On-site

Clair Hospital, this position is responsible for monitoring, inspecting, and maintaining boilers ... Stationary Engineer license OR Power Engineer License (minimum Class 4) Preferred Qualifications

Amentum

$100 - $125/hr

The Engineer - 3rd Class possesses extensive technical knowledge of boilers, steam and hot water systems, HVAC equipment, electrical systems, and associated mechanical equipment. Working with a high ...

Chugach Government Solutions

Boiler Mechanic

Fallon, NV

$23.75 - $30.50/hr

... class business services, while also making a difference for our Chugach shareholders. At CGS ... Follow instructions from boiler engineers and/or other staff, perform self-study, attend training ...

Amentum

Operating Engineer 3rd Class

Arlington, VA · On-site

$100 - $125/hr

The Engineer - 3rd Class possesses extensive technical knowledge of boilers, steam and hot water systems, HVAC equipment, electrical systems, and associated mechanical equipment. Working with a high ...

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Showing results 21-40

All JobsEnergy And Environment JobsUtility JobsClass 4 Boiler Engineer Jobs

Class 4 Boiler Engineer information

See salary details

$33K

$89.2K

$142K

How much do class 4 boiler engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for class 4 boiler engineer in the United States is $89,183.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,500.00 and $109,000.00 per year, depending on experience, location, and employer.

What are popular job titles related to Class 4 Boiler Engineer jobs?

For Class 4 Boiler Engineer jobs, the most frequently searched job titles are:

Operating Engineer III (Top Secret Clearance)

Charleston, SC • On-site

Safari Circuits, LLC
Electrical Equipment, Appliance, and Component Manufacturing • 51 - 200 employees
Learn more about Safari Circuits, LLCexternal

$100 - $125/hr

Other

Posted 11 days ago

Key responsibilities

  • Operate, inspect, maintain, and repair boilers, HVAC equipment, mechanical systems, and associated building infrastructure.

  • Monitor facility systems to identify performance issues and implement corrective actions to maintain operational efficiency.

  • Perform preventive, predictive, and corrective maintenance on critical building equipment.

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time Charleston, SC, North Charleston, SC, US

Mission

Waséyabek Federal Services, LLC (WFS) is a 100% Tribally owned, Native American SBA 8(a) small business of the Nottawaseppi Huron Band of the Potawatomi (NHBP). WFS is part of a portfolio of companies managed by Waséyabek Development Company, LLC, a 100% Tribally owned economic development firm focused on income diversification on behalf of NHBP that reaches beyond gaming is a well-funded, experienced small business, with substantial liquid assets and experience in federal contracting. WFS has borrowing capacity to meet the daily cash needs of new business development, new award support, and operational working capital. WFS is well-versed in federal contract compliance and providing outstanding support services.

*****THIS POSITION IS CONTINGENT UPON CONTRACT AWARD***** Job Description

Support the operation, maintenance, troubleshooting, and repair of critical building systems within a secure federal facility environment. This role is responsible for ensuring the reliable performance of complex mechanical, HVAC, boiler, electrical, and related infrastructure systems that are essential to mission success. The Engineer III serves as a senior technical resource, applying specialized expertise to diagnose equipment issues, perform preventive and corrective maintenance, and support facility reliability initiatives. The successful candidate will play a key role in maintaining safe, efficient, and uninterrupted building operations while operating in accordance with applicable safety, environmental, and operational standards.

Key Responsibilities
  • Operate, inspect, maintain, and repair boilers, HVAC equipment, mechanical systems, and associated building infrastructure.
  • Monitor facility systems to identify performance issues and implement corrective actions to maintain operational efficiency.
  • Perform preventive, predictive, and corrective maintenance on critical building equipment.
  • Troubleshoot mechanical, electrical, and control system issues to minimize downtime and restore operations quickly.
  • Maintain steam and hot water heating systems in compliance with operational and safety requirements.
  • Review equipment performance data and recommend improvements to increase reliability and energy efficiency.
  • Support facility start-up, shutdown, testing, and emergency response procedures.
  • Maintain accurate maintenance records, operational logs, and equipment documentation.
  • Coordinate with facility personnel, contractors, and management to ensure timely completion of maintenance and repair activities.
  • Adhere to all applicable safety, environmental, security, and quality assurance standards
Minimum Qualifications
  • Active Top Secret Security Clearance.
  • Bachelor's degree in Mechanical Engineering from an accredited college or university.
  • Valid 3rd Class Steam and Hot Water Heating Boiler Engineer License.
  • 1 to 5 years of experience in engineering services, facility operations, maintenance engineering, or related technical environments.
Required Certifications
  • Valid 3rd Class Steam and Hot Water Heating Boiler Engineer License.
Preferred Qualifications
  • Knowledge of boiler operations, HVAC systems, mechanical equipment, and building infrastructure systems.
  • Ability to diagnose, troubleshoot, and repair complex mechanical and electromechanical systems.
  • Strong understanding of safety procedures, building operations, and preventive maintenance practices.
  • Excellent problem-solving, communication, and technical documentation skills.
  • Experience supporting federal, Department of Defense, Department of State, or other secure government facilities.
  • Familiarity with Building Automation Systems (BAS) and energy management platforms.
  • Experience working in mission-critical, commercial, institutional, or industrial facilities.
  • Additional certifications related to facility operations, energy management, or maintenance engineering
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