Senior HVAC & amp; BAS Technician

CelectrumHire; Ulm (MT); On-site; USD 70,000 - 100,000; Full time

Job summary

CelectrumHire is seeking a senior-level HVAC and Building Automation Service Technician with 5+ years of field experience to troubleshoot complex systems and deliver high-quality service for commercial facilities.

You will diagnose, repair, and maintain HVAC equipment, BAS/BMS, DDC controls, read wiring diagrams and control schematics, and work independently with strong safety and customer-service mindset. Opportunities to mentor others and expand expertise across building automation systems.

Qualifications

• Five years of relevant HVAC service or building automation experience.
• Ability to diagnose and resolve complex technical problems.
• Read and interpret technical documentation, wiring diagrams, and control drawings.

Responsibilities

• Diagnose, repair, and maintain commercial HVAC and related systems.
• Troubleshoot BAS/BMS, DDC, sensors, actuators, controllers, and control sequences.
• Identify root causes and implement lasting solutions.
• Work with building automation interfaces, graphics, alarms, trends, schedules, and setpoints to improve operation.
• Interpret mechanical drawings, wiring diagrams, and control schematics.
• Perform preventive maintenance, system inspections, and commissioning tasks.
• Communicate findings, repairs, and operation clearly to customers.
• Document service activities, troubleshooting results, and follow-up requirements.
• Manage assigned service work independently with safety and quality.
• Collaborate with technicians and teams to resolve issues and improve processes.

Skills

HVAC service

Building automation

Troubleshooting

Control drawings

Customer communication

Safety compliance

Education

EPA Section 608 Certification

Tools

BACnet

Modbus

DDC controls

Trane

Johnson Controls

Siemens

Schneider Electric

Job description

Company Description Client helps commercial and institutional customers operate their buildings more efficiently, reliably, and safely through HVAC systems, building automation, controls, and integrated building technologies.

We're looking for a senior-level HVAC and Building Automation Service Technician with at least five years of relevant field experience who can independently troubleshoot complex systems, deliver high-quality service, and build lasting customer relationships.

This is an opportunity for an experienced technician who enjoys solving problems, taking ownership of their work, and expanding their expertise across commercial HVAC and building automation systems.

Company Description Client helps commercial and institutional customers operate their buildings more efficiently, reliably, and safely through HVAC systems, building automation, controls, and integrated building technologies.

We're looking for a senior-level HVAC and Building Automation Service Technician with at least five years of relevant field experience who can independently troubleshoot complex systems, deliver high-quality service, and build lasting customer relationships.

This is an opportunity for an experienced technician who enjoys solving problems, taking ownership of their work, and expanding their expertise across commercial HVAC and building automation systems.

Role Description

• Diagnose, troubleshoot, repair, and maintain commercial HVAC equipment and associated mechanical systems.
• Troubleshoot building automation systems (BAS/BMS), direct digital controls (DDC), sensors, actuators, controllers, and control sequences.
• Identify the root cause of equipment and system performance issues and implement effective, lasting solutions.
• Work with building automation interfaces, system graphics, alarms, trends, schedules, and setpoints to improve system operation.
• Interpret mechanical drawings, wiring diagrams, sequences of operation, technical manuals, and control schematics.
• Perform preventive maintenance, system inspections, functional testing, and equipment commissioning or startup support as needed.
• Communicate technical findings, recommended repairs, and system operation clearly to customers.
• Document service activities, troubleshooting results, recommendations, and follow-up requirements accurately.
• Manage assigned service work independently while maintaining high standards for safety, workmanship, organization, and customer service.
• Collaborate with fellow technicians, project teams, and internal departments to resolve complex issues and support continuous improvement.

What we're looking for

Required qualifications

• At least five years of relevant HVAC service, building automation, controls, or closely related commercial field experience.
• Demonstrated ability to independently diagnose and resolve complex technical problems.
• Strong troubleshooting skills involving HVAC equipment, electrical components, control circuits, and system operation.
• Ability to read and interpret technical documentation, wiring diagrams, and mechanical or control drawings.
• Strong customer communication, problem-solving, and organizational skills.
• A valid driver's license and an acceptable driving record.
• Ability to work safely in commercial and industrial environments and participate in after-hours service coverage as required.

Preferred qualifications

• Direct experience with commercial building automation systems, BAS/BMS, and DDC controls.
• Experience with HVAC control sequences, controller configuration, system integration, or programming.
• Familiarity with BACnet, Modbus, or other building automation communication protocols.
• Experience with major building automation platforms such as Trane, Johnson Controls, Siemens, Schneider Electric, Honeywell, or comparable systems.
• EPA Section 608 certification, relevant trade credentials, or manufacturer-specific controls training.
• Experience mentoring technicians, coordinating service work, or serving as a technical resource for a team.