Maintenance Technician

Sion Power, the global leader in the development of a new generation of high-energy rechargeable lithium batteries for portable power, is currently searching for a Maintenance Technician to be based at its research and development facility in Tucson, Arizona. Sion's exciting new technology package yields a battery system with the highest theoretical gravimetric and volumetric energy densities of any battery and offers significant improvements in performance over current rechargeable batteries.

Position Summary

The Maintenance Technician is responsible for supporting the safe, reliable, and continuous operation of site facilities and critical building systems. Approximately 75% of this position will focus on the inspection, preventive maintenance, troubleshooting, and repair of the site's cooling, HVAC, and dehumidification systems, which support temperature- and humidity-controlled manufacturing and laboratory environments.

The remaining 25% of the position will support general facility maintenance activities as assigned by the Facilities Manager.

This position requires a hands-on technician who can identify equipment problems early, troubleshoot mechanical and electrical systems, coordinate repairs when specialized vendor support is required, and help minimize interruptions to site operations.

Essential Duties and Responsibilities

Cooling, HVAC & Dehumidification Systems – 75%

• Perform routine inspection, preventive maintenance, troubleshooting, and repair of site cooling, HVAC, and dehumidification equipment.
• Monitor equipment condition and performance to identify abnormal operation before equipment failure or loss of environmental control.
• Troubleshoot mechanical, electrical, airflow, temperature, humidity, sensor, control, and equipment alarm issues.
• Support systems serving temperature- and humidity-controlled manufacturing, laboratory, and dry-room environments.
• Inspect and maintain components such as filters, belts, motors, bearings, fans, coils, condensate systems, pumps, valves, dampers, sensors, and related equipment.
• Assist with troubleshooting building automation and HVAC control systems, including temperature and relative-humidity sensors and alarms.
• Perform scheduled preventive maintenance according to manufacturer recommendations and the site's preventive maintenance program.
• Document inspections, maintenance activities, repairs, equipment conditions, and identified deficiencies.
• Respond to cooling, humidity, and HVAC equipment alarms or operational concerns and assist with restoring systems to normal operating conditions.
• Identify recurring equipment failures and recommend corrective or preventive maintenance improvements.
• Coordinate with HVAC, controls, refrigeration, and other specialty contractors when repairs exceed internal capabilities.
• Support equipment commissioning, upgrades, replacements, and facility improvement projects.
• Maintain critical spare parts and notify the Facilities Manager when replacement parts, consumables, or contractor support are needed.
• Follow applicable electrical safety and Lockout/Tagout (LOTO) requirements when servicing equipment.

General Facility Maintenance – 25%

• Perform general preventive and corrective facility maintenance as assigned by the Facilities Manager.
• Complete basic repairs involving plumbing, lighting, doors, hardware, fixtures, pumps, motors, and other facility equipment.
• Support maintenance activities throughout manufacturing, laboratories, warehouse, office, and exterior areas.
• Assist with contractor activities and facility improvement projects.
• Respond to maintenance work orders and document completed work.
• Assist with inspections and identification of facility deficiencies.
• Maintain maintenance tools, equipment, parts, and work areas in a safe and organized condition.
• Support emergency and after-hours facility response when required.

Qualifications

Required:

• High school diploma or GED.
• 3+ years of industrial, commercial, or facilities maintenance experience, with significant hands-on HVAC or mechanical systems experience.
• Demonstrated ability to troubleshoot mechanical and basic electrical equipment.
• Experience performing preventive and corrective maintenance.
• Ability to read equipment manuals, mechanical drawings, wiring diagrams, and basic schematics.
• Ability to use common electrical and mechanical diagnostic tools.
• Strong troubleshooting and problem-solving skills.
• Ability to work independently and prioritize equipment issues based on operational impact and safety.
• Basic computer skills for documentation, work orders, and maintenance records.

Preferred:

• Technical school, trade school, or apprenticeship training in HVAC, refrigeration, electrical, mechanical maintenance, or a related discipline.
• Experience maintaining commercial or industrial dehumidification systems.
• Experience supporting dry rooms, laboratories, clean rooms, manufacturing environments, or other humidity-controlled spaces.
• Experience with building automation systems (BAS), HVAC controls, sensors, VFDs, motors, pumps, and control circuits.
• EPA Section 608 certification, particularly if the role will perform refrigerant-related service.
• Experience working in manufacturing or other high-reliability facility environments.

Knowledge and Skills

The successful candidate should have working knowledge of:

• Commercial/industrial HVAC systems
• Dehumidification systems
• Refrigeration fundamentals
• Temperature and relative-humidity control
• Air handlers and rooftop units
• Pumps, motors, fans, belts, bearings, valves, and dampers
• Electrical troubleshooting
• VFDs and motor controls
• Building automation/control systems
• Preventive maintenance practices
• Lockout/Tagout and safe equipment servicing
• Maintenance documentation and work-order systems

Physical Requirements

• Ability to frequently stand, walk, bend, kneel, climb, and work around industrial equipment.
• Ability to safely use ladders and access mechanical/equipment areas.
• Ability to lift and carry up to 50 pounds.
• Ability to work indoors and outdoors in varying environmental conditions.
• Ability to wear required personal protective equipment.
• Ability to safely work around mechanical, electrical, HVAC, and manufacturing equipment.

Work Environment

This position works within an active industrial and battery-manufacturing facility that includes laboratory, production, warehouse, utility, mechanical, and office areas. The technician may work around electrical equipment, rotating machinery, HVAC equipment, chemicals, compressed gases, and other industrial hazards. Appropriate training and PPE will be provided or required based on the work being performed.

Schedule & Emergency Support

This position is primarily performed during normal facility operating hours; however, occasional after-hours, weekend, or emergency response may be required when critical cooling, dehumidification, or facility systems experience problems.