Controls Systems Technician

Johnson Controls; Folsom (CA); On-site; USD 55,000 - 73,000; Full time

Job summary

Johnson Controls is seeking a Controls Service Technician 5 to design, configure, service, and commission complete HVAC building control systems at client sites. You will develop software, execute commissioning, and produce submittals for design intent and operation.

The role requires deep knowledge of building automation, low-voltage systems, and strong problem-solving skills. Ideal candidates have 10+ years in controls, proficiency with LON, and experience with Modbus/BACnet.

Qualifications

• Must have minimum 10 years of experience programming, installing, and/or commissioning controls systems.
• Must be proficient with LON (Local Operating Networks).
• Demonstrated knowledge of construction, service mechanical, electrical, or HVAC service industry.
• Understanding of mechanical drawings, electrical wiring diagrams, control theory, and building automation.
• Experience integrating low-voltage subsystems using Modbus, LON, and BACnet.
• Advanced computer skills, especially Visio.
• Ability to explain technical information to a non-technical audience.
• Must have a valid driver's license.

Responsibilities

• Design, configure, service, and troubleshoot complex building control systems at customer facilities.
• Create flow diagrams, sequences of operation, bills of material, network layouts, and electrical schematics for service, repair, or installation.
• Develop, test, and adjust software programs to operate systems per customer requirements.
• Coordinate drawings, equipment schedules, and submittals to support service execution and project documentation.
• Load and commission system-level and network-level controllers; verify full functionality.
• Troubleshoot system and field issues with subcontractors and other trades for proper operation.
• Prepare field change information for as-built drawings and software updates.
• Keep management, contractors, and customers informed of progress, risks, and open issues.
• Support site-specific training for owners and operators on the total building control system.
• Participate in release meetings with sales/service operations and perform value engineering as appropriate.
• Provide work direction to Service Controls Technician I, Senior I, and Senior II where assigned.
• Follow safety standards with a high degree of regard for personnel safety.

Skills

LON proficiency

HVAC service knowledge

Electrical drawings

Explain to non-technical

Education

Bachelor's degree in engineering

Associate degree in related technical field with seven years experience

Tools

Visio

Job description

Controls Service Technician 5

Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization. We help customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. Backed by advanced technology, lifecycle services, and an industry-leading field organization, Johnson Controls elevates customer performance, turns goals into real-world results, and helps move society forward.

Role Overview

Under general direction, the Controls Service Technician 5 is responsible for the service and repair, design, configuration, and operation of complete HVAC building control systems and other low-voltage control sub-systems. This role is accountable for quality, timeliness, and efficiency while developing complex software programs, commissioning systems, and solving operational issues. You will also prepare detailed information and submittals that support customer, consultant, sales, service, and subcontractor understanding of system design and operation.

Key Responsibilities

• Design, configure, service, and troubleshoot technically complex building control systems at customer facilities.
• Create flow diagrams, sequences of operation, bills of material, network layouts, and electrical schematics as needed for service, repair, or installation work.
• Develop, test, and adjust software programs required to operate systems according to customer facility requirements.
• Coordinate drawings, equipment schedules, and submittals to support service execution and project documentation.
• Load and commission system-level and network-level controllers, then verify complete system functionality.
• Troubleshoot system and field issues with subcontractors and other trades to ensure proper operation.
• Prepare field change information for as-built drawings and software updates.
• Keep management, JCI contractors, and customers informed of job progress, risks, and open issues.
• Support site-specific training for owners and operators on the total building control system.
• Participate in release meetings with sales and service operations and perform value engineering where appropriate.
• Provide work direction to Service Controls Technician I, Senior I, and Senior II Controls Technicians when assigned.
• Follow all safety standards with a high degree of regard for employee and subcontractor safety.

How You Will Do It

• Own the outcome by working with safety, quality, timeliness, and integrity at the center of every service and commissioning assignment.
• Stay close to the work by understanding customer needs, removing obstacles, and communicating clearly with customers, consultants, sales, service, and subcontractors.
• Improve every day through methodical troubleshooting, candid problem-solving, and disciplined testing until the building control system performs as intended.
• Win as one team by sharing field change information, supporting junior technicians when needed, and collaborating across trades and functions.
• Use technical drawings, control theory, and building automation knowledge to translate complex systems into practical service actions.
• Build accurate submittals and documentation so design intent, software logic, and as-built changes remain clear and usable.
• Apply a customer-focused approach that balances cost effectiveness, reliable performance, and long-term system operation.

Qualifications

• Minimum of 10 years of experience with programming, installing, and/or commissioning controls systems, including system-level controllers.
• MUST BE PROFICIENT WITH LON (Local Operating Networks)
• Demonstrated knowledge of the construction, service mechanical, electrical, or HVAC service industry.
• Demonstrated knowledge and understanding of mechanical drawings, electrical wiring diagrams, control theory, automatic temperature controls, building automation systems, and other building subsystems.
• Demonstrated experience integrating low-voltage building sub-systems using industry protocols such as Modbus, LON, and BACnet.
• Advanced computer skills, particularly with computer-related drafting tools such as Visio.
• Ability to explain technical information to a non-technical audience.
• Must have valid driver's license.

Nice to Have

• Bachelor's degree in engineering.
• Associate degree in a related technical field with seven years of relevant work experience.
• Understanding of IP networking for building automation systems.

HIRING HOURLY RANGE

$38.75 - $53.32 (Hourly rate to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.) This position includes a competitive benefits package. The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may brin