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Air Separation Unit Operator Jobs in Arizona (NOW HIRING)

Freeport McMoRan

Locomotive Operator II

Claypool, AZ · On-site

$27 - $36/hr

... unit locomotives, completing preshift equipment inspections, performing minor maintenance and ... Knowledge of locomotive mechanical and electrical functions and locomotive air systems. Preferred ...

Freeport McMoRan

Locomotive Operator II

Claypool, AZ · On-site

$27 - $36/hr

... multiple unit locomotives, completing pre‑shift equipment inspections, performing minor ... Knowledge of locomotive mechanical and electrical functions and locomotive air systems. Preferred ...

Eurofins

Business Unit Manager

Phoenix, AZ · On-site

We offer comprehensive testing for air, water, soil, sediment, tissue, and waste, covering a wide ... The Business Unit Manager (BUMa) is responsible for maintaining positive operating margins at the ...

APS

Environmental Consultant- Air

Phoenix, AZ

... business unit objectives. This role reviews environmental regulations and supports their ... or operating practices. * Utilize current knowledge of all applicable air regulations Federal ...

US Department of the Air Force

$76K/yr

These are Air Reserve Technician (ART) positions. ARTs are eligible for 15 days active duty tour ... The statement/certification should indicate member's separation from active duty is within 120 days ...

Canyon AeroConnect

Business Unit Manager

Prescott, AZ · On-site

From air ambulance and search and rescue to law enforcement, military, and other specialized ... operating activities to ensure good customer service and cost objectives are met, and other duties ...

Canyon AeroConnect

Business Unit Manager

Prescott, AZ · On-site

From air ambulance and search and rescue to law enforcement, military, and other specialized ... operating activities to ensure good customer service and cost objectives are met, and other duties ...

Air Methods

Per Diem Flight Nurse

Payson, AZ

With a minimum of 36 months of experience in a busy ICU, ER, Flight, or Critical Care Transport ... Operating on a schedule of two 24-hour shifts per month, you'll deliver top-notch critical care ...

Air Methods

Flight Nurse

Show Low, AZ · On-site

With a minimum of 36 months of experience in a busy ICU, ER, Flight, or Critical Care Transport ... Operating on a schedule of one 48-hour shifts per week, you'll deliver top-notch critical care ...

Fujifilm

Process Operator

Mesa, AZ · On-site

$18.25 - $23/hr

Operates Deionized Water unit to support high purity chemical applications in blending, rinsing ... Operates Ammonia and Acid Fume Scrubbers within air discharge permit limits. * Operates an Ammonium ...

FUJIFILM Biotechnologies

$18.75 - $23.75/hr

Operates Deionized Water unit to support high purity chemical applications in blending, rinsing ... Operates Ammonia and Acid Fume Scrubbers within air discharge permit limits.Operates an Ammonium ...

Fujifilm

Process Operator

Mesa, AZ · On-site

$18.25 - $23/hr

Operates Deionized Water unit to support high purity chemical applications in blending, rinsing ... Operates Ammonia and Acid Fume Scrubbers within air discharge permit limits. * Operates an Ammonium ...

Fujifilm

Process Operator

Mesa, AZ · On-site

$18.25 - $23/hr

Operates Deionized Water unit to support high purity chemical applications in blending, rinsing ... Operates Ammonia and Acid Fume Scrubbers within air discharge permit limits. * Operates an Ammonium ...

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Air Separation Unit Operator information

What does an air separation unit operator do?

An Air Separation Unit (ASU) Operator is responsible for operating and maintaining equipment that separates atmospheric air into its primary components—mainly oxygen, nitrogen, and argon—using processes such as cryogenic distillation. They monitor control panels, adjust valves, and ensure the plant runs safely and efficiently. Operators also perform routine checks, troubleshoot issues, and maintain equipment to minimize downtime and ensure product quality. This role is vital in industries like steel manufacturing, chemical processing, and healthcare, where purified gases are essential.

What are some common challenges faced by air separation unit operators during shift operations?

Air Separation Unit Operators often encounter challenges such as maintaining consistent product purity, responding quickly to equipment alarms, and troubleshooting process upsets or deviations. The role requires careful monitoring of complex control systems and coordination with maintenance teams to minimize downtime. Operators must also be vigilant in adhering to safety protocols, given the high pressures and hazardous materials involved in the process.

What are the key skills and qualifications needed to thrive as an air separation unit operator, and why are they important?

To thrive as an Air Separation Unit Operator, you need a solid understanding of industrial process operations, mechanical aptitude, and typically a high school diploma or technical certification. Experience with distributed control systems (DCS), process instrumentation, and safety procedures is highly valuable. Attention to detail, strong problem-solving abilities, and effective teamwork are crucial soft skills in this role. These competencies ensure safe, efficient, and continuous operation of air separation units, minimizing downtime and maintaining product quality.

What cities in Arizona are hiring for Air Separation Unit Operator jobs?

Cities in Arizona with the most Air Separation Unit Operator job openings:

Infographic showing various Air Separation Unit Operator job openings in Arizona as of August 2026, with employment types broken down into 2% As Needed, 80% Full Time, 11% Part Time, and 7% Contract. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution.

Locomotive Operator II

Claypool, AZ • On-site

Freeport McMoRan
Mining of Natural Resources • 10K+ employees
Learn more about Freeport McMoRanexternal

$27 - $36/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted yesterday

Freeport-McMoRan rating

8.2

Company rating: 8.2 out of 10

Based on 141 frontline employees who took The Breakroom Quiz

7th of 41 rated mining

Job description

At Freeport-McMoRan, we are committed to providing an employment package that recognizes excellence, encourages safe production and a culture supported by our core values. Here, you'll find a collaborative environment where safety is a top priority, all opinions are valued, and people are empowered to grow in their career. Apply Today! 

Where You Will Work 

Our Miami smelter and rod plant is nestled just 90 miles east of Phoenix. The smelter processes copper concentrate primarily from our company's Arizona copper mines and is the most significant source of sulfuric acid for our North American leaching operations.Arizona's Globe-Miamihistoric mining district offers natural beauty and a rich mining heritage. The Tri-Town of Globe, Claypool and Miami offers convenient shopping locales, including Walmart, Safeway, Fry's and other local stores. Here, our employees and their families can connect with the outdoors and enjoy the family-friendly atmosphere. Visit Globe-Miami.com to learn more.

What You Will Do

Safely performs duties related to the operation and minor maintenance of locomotive equipment and railroad tracks at a highly skilled level.

  • In this role, you are responsible for the knowledge and safe performance of procedures for working on or near railroad tracks, including the use of chains and slings and inspection for defects, crossing from one side of a train to the other, Blue Stake procedures, reading blueprints for proper building of switches, and illustrating standard crane signals.
  • As the Locomotive Operator II, you perform track inspections, general track work, flagging trains, opening and closing boxcars, and rerailing cars after train derailments, and may perform minor track maintenance duties such as lubricating switches and using track wrenches and pneumatic tools to tighten nuts and bolts on railroad tracks.
  • You may load, unload, and cut bands from railroad tie bundles, transport materials, recognize and report defects on equipment and tools, identify and repair defective track switches, and identify and repair defective rail.
  • Duties also include building track panels, handling and laying track sections, operating ballast regulators, performing ballast train dumping operations, operating spot tampers, track maintainers, and crane cars, and operating track drills, track saws, truckmounted hoists, backhoes, hirail trucks, boom trucks, forklifts, and hydraulic frontend loaders.
  • You train and mentor coworkers and may perform brakeman and switchman duties, including handling, coupling, and uncoupling acid, freight, and concentrate railcars, performing railcar brake inspections, weighing and inspecting railcars, and ensuring proper and safe securing of railcars.
  • You are responsible for the safe movement of freight trains and railcar switching in rail yards, providing clear hand and radio signals to locomotive operators, demonstrating knowledge and safe performance of locomotive horn signals, riding positions, mounting and dismounting moving trains and locomotives, use of hand brakes, proper alignment of railroad track switches, hand and lantern signals, establishing car clearances, crossing over railcars, spotting railcars, connecting multiunit locomotive air hoses, performing locomotive engineer duties including the operation of single and multiple unit locomotives, completing preshift equipment inspections, performing minor maintenance and operations support activities, and performing other duties as required.
What You Bring To Freeport
  • Two (2) years of locomotive operating experience.
  • Must have completed academic and practical competencies required (including Line of Progression requirements for internal employees where LOP exists) and have experience demonstrating the required aptitude, with the ability to apply knowledge and skills while passing a written assessment where required.
  • Ability to understand and apply verbal and written work and safetyrelated instructions and procedures in English.
  • Ability to communicate in English with respect to job assignments, job procedures, and applicable safety standards.
  • Knowledge of the proper use and performance of railroad track jacks.
  • Knowledge of the proper use and performance of claw bars to move rails and spiking or spacing hammers to insert spikes.
  • Knowledge of locomotive mechanical and electrical functions and locomotive air systems.
Preferred Qualifications
  • High Scool Diploma or GED
  • Railroad Transportation experience
  • Familiar with GCOR rules
  • Familiar with the FRA-DOT
  • Familiar with the ACC (Arizona Corporation Commission) 
  • This position will be Monday-Friday 4pm-12am shift 

What We Offer You 

The estimated pay range for this role is currently$27.00 - $36.00/hour. This range reflects base salary only and does not include bonus payments, benefits or retirement contributions. Actual base pay is determined by experience, qualifications, skills and other job-related factors. This role is eligible for additional discretionary and incentive payment considerations based on company and individual performance. More details will be shared during the hiring process. Click here to view a sample of Total Rewards Estimate for this role. 

  • Affordable medical, dental and vision benefits 
  • Company-paid life and disability insurance 
  • 401(k) plan with employer contribution/match 
  • Paid time off, paid sick time, holiday pay, parental leave 
  • Tuition assistance 
  • Employee Assistance Program 
  • Discounted insurance plans for pet, auto, home and vehicle 
  • Internal progression opportunities 
  • Learn more about our competitive and comprehensive benefits package! 

What We Require 

  • Candidates may be required to pass a medical exam. 
  • Candidates must pass all required training and/or testing. 
  • Employees may be required to work a non-standard schedule, which may include shift work (other than day shift) at a 24/7, 365-day operation. 
  • Freeport-McMoRan promotes a drug/alcohol-free work environment using mandatory pre-employment drug testing and on-going drug and alcohol testing, as allowed by applicable laws. 

 Equal Opportunity Employer 

Please be advised that Freeport-McMoRan will never request payment for job-related expenses from applicants. If you receive any suspicious emails, please disregard them, and report the incident to HRSC@fmi.com. 

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