M. & O. Specialist

Massachusetts Water Resources Authority; Marlboro (MA); On-site; USD 64,000 - 96,000; Full time

Job summary

Massachusetts Water Resources Authority in Marlborough, MA is seeking an M&O Specialist to perform inspections, preventive maintenance, and repairs on mechanical, electrical, and hydraulic systems at MWRA facilities. You will work as part of a team to ensure reliable operations and safety.

The role requires a high school diploma or GED, mechanic training or equivalent, and a valid Class D driver's license. Salary ranges and license progression are outlined in postings for personal growth.

Qualifications

• High school diploma or GED required.
• Two years of related mechanical maintenance experience.
• Formal mechanic training or equivalent is acceptable.
• Valid Class D Driver's License.

Responsibilities

• Inspect, repair and maintain mechanical, electrical, and hydraulic systems.
• Perform preventive and corrective maintenance on equipment per vendor specs.
• Work with instrumentation, plumbing, HVAC and electrical tasks as needed.
• Fabricate sheet metal components and weld or solder as required.
• Document results and use MAXIMO for inspections and work records.

Skills

Mechanical systems

Electrical systems

HVAC maintenance

Preventive maintenance

Troubleshooting

Education

High school diploma or GED

Mechanic training program

Tools

MAXIMO database

Sheet metal fabrication

Job description

Are you looking to make a meaningful impact on public health and the environment? Join the MWRA team! We deliver some of the nation's highest-quality drinking water to 3 million residents, restored Boston Harbor, and continue to invest in protecting vital public resources. Be part of a mission-driven organization where your work truly makes a difference-in a safe, inclusive, and supportive environment.

Summary

The M&O Specialist (Maintenance and Operations) performs inspections, overhauls, maintenance and repairs of various mechanical, electrical-mechanical, hydraulics systems & equipment at various facilities throughout the Authority. Performs assigned functions as part of a team.

Posting Period: 8/24/2026 to 9/4/2026
Location: Marlborough, MA
Salary: New hires start at $72,468.00 annually $1,393.62 weekly moves to $76,289.31 annually $1,467.10 weekly upon completion of PIP training and obtaining wastewater license. Full salary range: $64,100.26 - $91,324.94 annually; moves to Grade 16 after license is obtained and training is completed $67,131.82 - $96,436.98 annually.
Work Schedule: Monday - Friday 7:00am - 3:30pm

Key Responsibilities

• Works from manufacturer's manuals and specifications, blueprints, schematics and verbal instructions to install, repair, troubleshoot, inspect, check & maintain mechanical, electrical-mechanical & hydraulic systems including HVAC mechanical components, which may include those carrying refrigerant. Performs electrically related activities specified by work order.
• Performs preventive and corrective maintenance on mechanical, electromechanical, hydraulic and pneumatic equipment according to vendor specifications.
• Performs various non-licensed maintenance, repair & installation tasks related to plant equipment and systems in the areas of instrumentation and control, plumbing, heating, ventilation and air conditioning and electrical.
• Fabricates devices and assemblies of sheet metal using powered and manual sheet metal forming tools.
• Welds, brazes and solders using gas and electric equipment common to trade.
• Operates equipment manually and through instrument panels and programmable logic control units as required in performance of maintenance tasks. Equipment may include, but will not be limited to, pumps, valves, gates, meters, gauges, controllers, motor control centers, level control devices, mixers, oxygen generation, chemical feed and odor control equipment.
• Follows established safety, operating, and emergency response procedures and policies established by MWRA.
• Operates motor vehicles, such as vans and pickup trucks, to pick up and deliver supplies and equipment to work sites.
• Installs retrofits/installation of new equipment related systems, modification and alignment of existing equipment to specifications.
• Supervises assigned Skilled Laborers, Building & Grounds Workers, and other maintenance personnel as needed.
• Performs, documents and reports results in the MAXIMO database of inspections and work performed.
• Performs work in compliance with the Operations Integrated Contingency Plan.
• Assists other trades in the performance of their work, as required or as assigned.
• Performs light maintenance independently or as part of a team. Light maintenance shall include but not limited to:
  • Operates forklift or other light equipment not requiring a special license.
  • Generates inspection lists and maintenance reporting through the Computerized Maintenance Management System
  • Inspects and troubleshoots various systems and equipment.
  • Installs and retrofits/new equipment related to plant systems.
  • Modifies and/or aligns existing equipment to specifications.
  • With proper safety training sets up ladders, staging and rigging and utilizes hoists, jacks, dollies, lifts, etc. for proper access to job and to remove and install equipment.
  • Operates portable pumping, ventilation and other equipment necessary to support and accomplish assigned tasks.
  • Greases and lubricates, replaces oil reserves, minor packing adjustments and opens hatches.
  • Installs safety rails, changes light bulbs and replaces HVAC filters.
  • Removes snow from immediate work area in order to perform tasks.
  • Conducts routine testing, lockout/tagout, operation (startup/shutdown) and adjustment of process equipment.
  • Performs necessary cleanup and housekeeping for work area and other light maintenance tasks.

Required Qualifications

• A high school diploma or GED; or
• Satisfactory completion of formal mechanic training program and at least two (2) years related experience, and
• Satisfactory completion of training in accordance with the Productivity Improvement Program; or
• Any equivalent combination of education or experience.
• Possession of a Valid Class D Drivers License.
• For DI and Clinton, a valid Grade II Wastewater Treatment Plant Operator's License or the ability to obtain the correct license within one (1) year.
• For Southboro, a valid Water Distribution II or Treatment II License or the ability to obtain the correct license within one (1) year.
• For Chelsea, a valid Grade II Wastewater Operator's License, Water Distribution II License, Water Treatment II License, or Collections Systems II License or the ability to obtain the correct license within one (1) year.
• Complete competency based training program related to ESSENTIAL DUTIES AND RESPONSIBILITIES as outlined above and successfully demonstrates required competencies.
• This position has been designated as essential in instances where the MWRA Executive Director requires essential personnel to report to work such as inclement weather or other emergencies.

Knowledge and Abilities

• Basic reading, writing, mathematical and oral communication skills.
• Thorough knowledge of the standard practices, materials, tools, occupational hazards and safety practices common to the trade.
• Skills in the operation of tools, instruments and equipment of the trades.
• Computer skills necessary to access and use the Maximo & Lawson Database.
• Trained in Confined Space Entry, CPR and First Aid, and must be capable of entering, setting-up, installing, disassembling confined space equipment and ability to work in a confined space.
• Ability to attain knowledge and work processes required to perform maintenance tasks required by Reliability Centered Maintenance or similar Maintenance Management Program.

Tools and Equipment Used

Motor vehicle, power and hand tools, hoist, mobile truck radio, beeper.

Physical Demands

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the essential functions the employee is regularly required to use hands to finger, handle, feel or operate objects, tools, or controls and reach with hands and arms. The employee frequently is required to stoop, kneel, crouch or crawl. The employee is occasionally required to stand, walk, talk or hear, sit, climb, or balance. The employee must frequently lift and/or move up to 25 pounds and occasionally lift and/or move more than 50 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, depth perception, peripheral vision and the ability to adjust focus.

Work Environment

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. While performing the duties of this job, the employee regularly works in outside weather conditions. The employee occasionally works near moving mechanical parts and is occasionally exposed to wet and/or humid conditions and vibration. The employee occasionally works in high, precarious places and is occasionally exposed to fumes or airborne particles, toxic or caustic chemicals. The job is hearing protection required and the noise level in the work environment is very loud in field settings and moderately loud at pumping stations.

Supervision Received and Exercised

Works under the general supervision of a Unit Supervisor.
Exercises supervision of entry-level staff.

Other Position Information

PCR: 3396016

Division: Operations

Department: Trade Labor Maintenance

Union/Grade: AFSCME (Unit 2)/Grade 16

Massachusetts Water Resources Authority (MWRA) is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, national or ethnic origin, age, religion, disability, sex or gender, sexual orientation, gender identity or expression, or veteran status.