Maintenance Tech III

Commercial Refrigeration Technician

Location-Waltham (Maintenance Technician III) is responsible for performing preventive maintenance, routine inspections, troubleshooting, and general repairs on commercial and industrial facility equipment in a safe, efficient, and professional manner. This role supports facility operations by maintaining building systems and equipment reliability while ensuring a safe and comfortable environment for building occupants.

The successful candidate is a strong communicator with excellent follow-through skills, capable of working independently and collaboratively while adhering to all safety, operational, and customer service standards. Maintenance Technician III performs assigned maintenance tasks, documents work activities in the CMMS and assists in maintaining the overall appearance and functionality of the facility. MA Refrigeration Journeyman License required.

Essential Duties & Responsibilities

Perform preventive maintenance, inspections, and repairs on refrigeration, HVAC, and related mechanical systems. Troubleshoot and diagnose equipment issues to minimize downtime. Respond to service calls and emergency repair situations as needed. Maintain accurate maintenance records and work documentation. Ensure compliance with all company safety policies and applicable regulations. Coordinate with team members, vendors, and customers to support facility operations. Assist with general mechanical maintenance duties as assigned.

Equipment Maintenance & Repair - Troubleshoot and perform minor maintenance and repair work on commercial and industrial building systems and equipment. Assist senior technicians with more complex repairs and maintenance activities. Perform routine maintenance tasks including Filter replacements, Belt and hose inspections/replacements, Lubrication and greasing of equipment, Oil changes, Condenser and coil cleaning, Basic mechanical adjustments. Complete general building maintenance activities such as painting, patching, fixture repairs, and minor carpentry work. Perform basic plumbing repairs including faucet, valve, and drain maintenance. Assist with simple electrical repairs such as lighting maintenance, lamp replacement, and ballast replacement where permitted.

Customer Service & Communication - Communicate professionally and effectively with customers, facility occupants, vendors, and team members. Ensure customer requests are clearly understood and addressed appropriately. Provide updates regarding work status, anticipated completion times, and any operational impacts. Support a customer-focused environment by responding promptly and professionally to maintenance concerns.

Safety & Compliance - Strictly adhere to all company safety policies and procedures. Follow OSHA regulations, lockout/tagout procedures, permit requirements, and other workplace safety protocols.

Utilize required personal protective equipment (PPE) and maintain a safe working environment. Identify and report unsafe conditions, hazards, or compliance concerns. Participate in safety meetings and required training programs.

Vendor & Contractor Support - Assist with monitoring subcontractors performing facility services and maintenance activities. Provide guidance regarding site procedures, safety requirements, and work locations as directed by management. Verify work areas remain safe and organized during contractor activities.

General Facility Support - Support special projects, facility improvements, and operational initiatives as assigned. Maintain work areas, shops, and storage locations in a clean and organized condition.

Perform additional duties as assigned by the Site Manager, Facilities Manager, or other designated leadership.

Qualifications

Education

High School Diploma or equivalent required. Trade school, vocational training, technical certification, or related coursework preferred.

Business Experience

HVAC, electrical, or related trade certifications. Experience working in commercial, healthcare, industrial, or critical facility environments. Building automation system (BAS) experience. EPA Certification. Strong customer service and communication skills.

Licenses/Certifications

High school diploma or GED. Experience troubleshooting, repairing, and maintaining commercial refrigeration systems. Ability to read and interpret technical documents, schematics, and work orders. Strong commitment to safety and quality workmanship. Valid driver's license and acceptable driving record.

Language Skills

Ability to read, understand, and interpret safety procedures, operating instructions, maintenance manuals, blueprints, diagrams, and work orders. Ability to prepare routine reports, maintenance documentation, and professional correspondence.

Ability to effectively communicate with customers, coworkers, and management. Ability to calculate measurements, percentages, proportions, area, circumference, and volume. Ability to apply basic algebraic and geometric concepts to maintenance and repair activities. Ability to solve practical problems involving multiple variables in environments with limited standardization.

Technical Qualifications & Skills

Basic understanding of commercial building systems and maintenance practices. Ability to use hand tools and small power tools safely and effectively. Ability to disassemble and reassemble basic building fixtures and equipment. Knowledge of basic plumbing, carpentry, and mechanical repair techniques. Ability to perform routine maintenance and corrective repairs on building systems and equipment. Ability to safely operate forklifts, scissor lifts, aerial lifts, and similar equipment after training and certification. Proficiency with computers, mobile devices, tablets, email systems, and CMMS software. Ability to learn and apply manufacturer maintenance procedures and facility operating standards.

Physical Demands

Frequently stand, walk, bend, climb, and work in various facility environments. Ability to lift and carry up to 50 pounds. Must be capable of performing work in mechanical rooms, rooftops, and other equipment areas. Ability to safely use tools, equipment, and personal protective equipment (PPE).

Work Environment

Work is performed in commercial facility environments, both indoors and outdoors. Exposure to varying temperatures, mechanical equipment, and occasional noise. Participation in on-call or after-hours work may be required based on business needs. Safety procedures and PPE requirements must be followed at all times.

Equal Opportunity Employer

As 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/Disabled

Affirmative Action Policy

Please review our Affirmative Action Policy.

Notice to Prospective Employees

Notice 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

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