Service Technician

McDonough Mechanical Services Inc.; Baltimore (MD); On-site; USD 39,000 - 52,000; Full time

Job summary

McDonough Mechanical Services Inc. is a Baltimore-based provider of ammonia and halocarbon refrigeration services, piping, and HVAC support.

The Service Technician will perform daily maintenance and repair of industrial refrigeration and piping systems, troubleshoot issues, replace components and relief valves, and assist with piping installation and insulation. This on-site, full-time role requires strong field service skills, safety awareness, and the ability to communicate with customers

Qualifications

• Experience with industrial refrigeration, piping, and HVAC maintenance.
• Strong troubleshooting for mechanical, electrical, and control issues.
• On-site field service experience at customer facilities.
• Knowledge of ammonia and halocarbon systems; glycol systems.
• Familiarity with PSM/RMP and mechanical integrity.
• Ability to read technical drawings and P&IDs.

Responsibilities

• Perform daily maintenance and repair of industrial refrigeration and piping systems.
• Troubleshoot system issues and replace faulty components and relief valves.
• Assist with piping installation and insulation.
• Support mechanical integrity inspections and documentation.
• Conduct field service at customer sites and communicate service needs.
• Provide clear updates on work status to ensure safe, efficient operation.

Skills

Maintenance & Repair

Troubleshooting

Field Service

Customer Service

Ammonia refrigeration

Regulatory compliance

P&IDs reading

Technical training

Valid driver’s license

Travel willingness

Education

Trade training

Apprenticeship

Job description

Company Description McDonough Mechanical Services Inc. is a full-service refrigeration and piping contractor specializing in ammonia (NH₃) refrigeration for the food and beverage industry. The company supports refrigerated facilities across Maryland, Delaware, Pennsylvania, and Virginia with services that include piping installation and replacement, general refrigeration maintenance, and system design. McDonough Mechanical Services Inc. works with both ammonia and halocarbon refrigeration, as well as glycol systems, HVAC systems, and refrigeration control systems. The organization also provides PSM/RMP audits, documentation assistance, mechanical integrity inspections, and relief valve services, offering comprehensive technical support for industrial refrigeration operations.

Role Description This is a full-time, on-site Service Technician role based in Baltimore, MD. The Service Technician will perform daily maintenance and repair of industrial refrigeration and piping systems, including ammonia and halocarbon equipment, glycol systems, and HVAC components. Responsibilities include troubleshooting system issues, replacing refrigeration components and relief valves, assisting with piping installation and insulation, and supporting mechanical integrity inspections. The role involves field service at customer sites, accurate documentation of work performed, and collaboration with team members to support system design and control system adjustments. The Service Technician will communicate with customers on service needs, provide clear updates on work status, and help ensure safe, efficient operation of refrigeration systems.

Qualifications

• Strong Maintenance & Repair and Maintenance skills for industrial refrigeration, piping, and HVAC systems.
• Proficient Troubleshooting skills to diagnose mechanical, electrical, and control system issues.
• Field Service experience working on-site at customer facilities and managing service calls.
• Effective Customer Service skills to communicate clearly, set expectations, and maintain professional relationships.
• Knowledge of ammonia and halocarbon refrigeration systems, glycol systems, and basic HVAC principles.
• Understanding of safety practices and regulatory standards related to industrial refrigeration (e.g., PSM/RMP, mechanical integrity).
• Ability to read and interpret technical drawings, P&IDs, and equipment manuals.
• Relevant technical training or certification in refrigeration, HVAC, or mechanical systems; apprenticeship or trade school experience is beneficial.
• Capability to work in industrial environments, including lifting, climbing, and working in various temperatures.
• Valid driver’s license and ability to travel to customer sites within the region.