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Heat and Vent Mechanic - Chilled Water Plant

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Date: Feb 2, 2026

Location: Lexington, MA, US

Company: MIT Lincoln Laboratory

Job Description

HVAC Mechanic - Chilled Water Plant

 

  • Operate and maintain a semi-automated Chilled Water Plant utilizing York Turbomaster Chillers and associated pumps, valves, cooling towers, strainers, water treatment systems, control systems, and low-pressure steam systems.

  • Maintain records and logs of plant operations.

  • Install and maintain air conditioning and refrigeration systems and associated components, including compressors, heat transfer coils, bearings, belts, and pneumatic/DDC control systems.

  • Operate and maintain compressed air systems, oil burners, low-pressure steam heating systems, and hot water heating systems within the Laboratory.

  • Respond to emergency HVAC problems as needed.

  • Perform physical tasks such as climbing and maneuvering on ladders, staging, work platforms, and tight spaces; lifting heavy objects up to 50 pounds; and climbing over/around equipment in construction areas.

  • Position may require being on one’s feet for 70–80% of the time.

Requirements

  • Massachusetts Refrigeration Technician’s License (required).

  • Journeyman Pipefitter’s License (preferred).

  • Experience with Building Automation Systems (preferred).

  • Minimum of five (5) years of experience in the refrigeration field with strong experience in central chilled water plant operations and pneumatic/DDC control systems.

  • Ability to work with minimal supervision.

  • Must obtain a 3A Hoisting License within 15 months to operate overhead cranes.

  • Must be able to work all shifts as required by MIT Lincoln Laboratory.

  • Required to work during site-wide semi-annual steam plant facilities maintenance shutdowns.

  • Position may require being on one’s feet for 70–80% of the time (reiterated for clarity).

Hiring Range: $51.45
Job Grade: SEIU-HVACMECH

Disclaimer: MIT Lincoln Laboratory provides a typical hiring range as a good faith estimate of what we reasonably expect to offer for this position at the time of posting. The final salary offered to a selected candidate will depend on various factors, including—but not limited to—the scope and responsibilities of the role, the candidate’s experience, skills and education/training, internal equity considerations and applicable legal requirements. This range reflects base salary only and does not include additional forms of compensation or benefits.

At MIT Lincoln Laboratory, our exceptional career opportunities include many outstanding benefits to help you stay healthy, feel supported, and enjoy a fulfilling work-life balance. Benefits offered to employees include: 

  • Comprehensive health, dental, and vision plans
  • MIT-funded pension
  • Matching 401K
  • Paid leave (including vacation, sick, parental, military, etc.)
  • Tuition reimbursement and continuing education programs
  • Mentorship programs
  • A range of work-life balance options
  • ... and much more!  

Please visit our Benefits page for more information. As an employee of MIT, you can also take advantage of other voluntary benefits, discounts and perks.

Selected candidate will be subject to a pre-employment background investigation and must be able to obtain and maintain a Secret level DoD security clearance.

MIT Lincoln Laboratory is an Equal Employment Opportunity (EEO) employer. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability status, or genetic information; U.S. citizenship is required.

Requisition ID: 42559 


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