Millwright Mechanic

Job Title: Millwright Mechanic - Portable Concrete Plant
Job Description
This role focuses on installing, maintaining, troubleshooting, and repairing portable concrete batch plants, primarily REX brand units. You will work on mechanical, electrical, hydraulic, and pneumatic systems, perform minor welding and fabrication, and support full plant setup and teardown at various job sites. The position requires consistent travel to remote plant locations, the ability to work in all weather conditions, and adherence to OSHA and lockout/tagout safety standards while minimizing plant downtime through proactive maintenance.
Responsibilities

• Install, commission, and dismantle portable concrete batch plants, with a focus on REX brand equipment.
• Perform mechanical repairs on industrial equipment such as conveyors, motors, and mixers to ensure reliable plant operation.
• Troubleshoot and repair electrical, hydraulic, and pneumatic systems to quickly identify and resolve equipment issues.
• Conduct preventative maintenance, including greasing, filter changes, and lubrication, to minimize unplanned downtime.
• Carry out minor welding and fabrication tasks, including MIG or stick welding and cutting torch work, to repair or modify plant components.
• Use power tools and hand tools safely and effectively for assembly, disassembly, and repair of plant equipment.
• Support full plant setup and teardown at various job sites, including alignment, calibration, and functional testing of equipment.
• Follow OSHA and lockout/tagout (LOTO) safety standards during all maintenance and repair activities.
• Operate or assist with the operation of forklifts, skid steers, manlifts, or loaders as needed for plant installation and maintenance.
• Work safely in confined spaces and at heights while performing inspections, repairs, and maintenance tasks.
• Travel regularly to remote job sites, typically 2-3 hours away, and adapt to changing site conditions and schedules.
• Collaborate with site teams to plan maintenance activities around production schedules and seasonal workflows.
• Document maintenance and repair activities accurately to support equipment reliability and compliance requirements.

Essential Skills

• Proven experience in mechanical repair of industrial equipment, including conveyors, motors, and mixers.
• Hands-on experience with electrical, hydraulic, and pneumatic troubleshooting in an industrial or plant environment.
• Demonstrated ability to install, set up, and tear down portable plant equipment, with REX brand experience preferred.
• Strong preventative maintenance skills, including greasing, filter changes, lubrication, and routine inspections.
• Proficiency with MIG or stick welding for repair and light fabrication work.
• Ability to work safely in confined spaces and at heights in accordance with safety standards.
• Experience using power tools and hand tools for assembly, disassembly, and repair tasks.
• Capability to travel regularly to remote job sites and work outdoors in all weather conditions.
• Willingness to work overtime, including occasional Saturdays during peak season.
• Commitment to following OSHA and lockout/tagout (LOTO) safety procedures.

Additional Skills & Qualifications

• Experience with REX brand portable concrete batch plants or similar equipment.
• Fabrication and cutting torch experience for modifying and repairing plant components.
• Experience operating forklifts, skid steers, manlifts, or loaders.
• Commercial Driver's License (CDL) preferred for transporting equipment or materials.
• Comfort working within a seasonal workflow that includes preparation, a long production season, and teardown.
• Ability to adapt to changing site conditions, schedules, and priorities across multiple job locations.

Why Work Here?
You will join a stable operation that offers long-term work with consistent 50+ hour weeks and strong overtime earning potential. The role includes travel per diem support, including partial hotel coverage and daily meal allowances, helping offset travel-related expenses. You will gain hands-on experience with a well-established concrete plant brand and benefit from a comprehensive benefits package, including retirement savings options. There is flexibility to join through contract-to-hire or direct placement, providing multiple paths to long-term employment and growth.
Work Environment
You will work primarily outdoors in all weather conditions at portable concrete plant sites. The role involves frequent travel to job locations typically 2-3 hours away, where you will support plant setup, maintenance, and teardown. The standard schedule follows a first shift, approximately 6:00 AM to 2:30 PM, Monday through Friday, with the possibility of Saturday work during peak season. The workflow is seasonal, moving from preparation to a long operating season and then teardown, with potential off-season layoff depending on workload. You will work around heavy industrial equipment and mobile machinery such as forklifts, skid steers, manlifts, and loaders, and you will use power tools, welding equipment, and cutting torches in a field-based industrial setting.
Job Type & Location
This is a Contract to Hire position based out of Grimes, IA.
Pay and Benefits
The pay range for this position is $32.00 - $35.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Grimes,IA.
Application Deadline
This position is anticipated to close on Jun 11, 2026.

About Aerotek

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meets their goals, skills and interests. Since 1983, we have provided a variety of career opportunities across North American industry - from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role solving for companies' construction, manufacturing and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are everything spirit to the test as your career continues to grow.


Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.


The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.