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Salary
$60k – $76k per year
Location
In office (Johnson Creek)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Nov 1, 2026. First seen by Alion on Oct 8, 2026.

Overview
Company
Impact
Profile match
Headquartered in Johnson Creek, Wisconsin, Aztalan Bio is an advanced biorefinery company operating as a subsidiary of Ireland's ClonBio Group Limited. The organization manages a large-scale grain processing facility equipped with innovative dry front-end fractionation systems to maximize resource efficiency. Through its commitment to sustainable agricultural technologies and next-generation green energy solutions, the company drives significant reductions in greenhouse gas emissions while producing renewable fuels and high-value co-products.

Description

We're building our 2nd shift maintenance team and want you to be part of it! Join Aztalan Bio and play a key role in establishing a strong, reliable maintenance presence on 2nd shift while supporting our growing operations. This full-time role offers a Mon-Fri schedule (2:00pm - 10:30pm), competitive pay of $30 - $38/hr plus $2 shift premium and a strong benefits package including medical, dental, vision, PTO, sick time, and more. In this role, you will perform preventative and corrective maintenance on production equipment, troubleshoot mechanical and basic electrical issues, and ensure safe, reliable, and efficient operation of the facility. You will also participate in the facility’s on-call rotation, serving as a maintenance contact for approximately one week every eight weeks to support operational needs outside of normal working hours.

What We Offer:

  • Medical, Dental, and Vision insurance
  • Paid Time Off (Start with 3 weeks)
  • Sick Time
  • Monthly Bonuses
  • Additional voluntary benefits
  • Many more employee perks

In this role, you will perform preventative and corrective maintenance on production equipment, troubleshoot mechanical and basic electrical issues, and ensure safe, reliable, and efficient operation of the facility.

Duties and Responsibilities

  • Complete preventative and planned maintenance tasks, reconcile comments and suggestions with the maintenance planner and the production shift supervisor.
  • Immediate analysis of mechanical failures and complete the repair respecting EHS rules.
  • Complete ad-hoc (mainly mechanical) jobs quickly and in a professional manner, as requested by Production Shift Supervisor, Production Manager, Maintenance Planner and Maintenance Manager.
  • Participate in a weekly on-call rotation to respond to off-hours maintenance needs and emergency situations.
  • Maintenance of the company's production equipment, renewal, repair and, if necessary, conversion of machine parts and components.
  • Troubleshoot, disassemble and repair plant equipment including but not limited to: pumps, heat exchangers, conveyors, slides, spouts, vehicles, grain processing equipment, agitators, valves, blowers, compressors, and fans.
  • Makes necessary adjustments to the equipment to maintain parameters specified by the processes including alignment, balancing, vibration analysis, and lubrication.
  • Understand and implement reliability-centered maintenance system.
  • Registering maintenance jobs in proper system.
  • Checking working devices and parts, change if needed on the basis of pre-established and applicable audit tasks, documenting the shortcomings and forecasts discovered, Maintain Planner and Maintenance Manager notification.
  • Keep work area, workshop and tools clean and in working order.
  • Training operators for simple maintenance tasks.
  • Active participation in planned plant shutdowns, to determine the maintenance requirements of systems, devices and devices that fall within the scope of its competence.
  • Participate in the facility’s on-call rotation, serving as a maintenance contact for approximately one week every eight weeks to support operational needs outside of normal working hours.

About Aztalan Bio

Aztalan Bio is part of ClonBio Group, a family-owned global leader in grain biorefining. Our Jefferson, WI facility is the largest ethanol plant in the state, processing up to 50 million bushels of locally grown corn each year to produce ethanol, corn oil, distillers grains, bran, and germ.

Our sister facility, Pannonia Bio in Hungary, is one of the most advanced biorefineries in the world. Aztalan Bio is undergoing a multi-year, multi-hundred-million-dollar transformation modeled on this success-bringing world-class innovation and technology to Wisconsin. ClonBio invests heavily in its people, with engineers and scientists from 23 countries across five continents supporting our long-term growth.

Requirements

Qualifications

  • Minimum of 2 years of mechanical maintenance experience in a manufacturing facility, preferably chemical or food manufacturing.
  • Welding and/or fabrication experience and certification (as applicable)
  • Previous experience working with conveyors, pumps, valves, etc.
  • Knowledge of mechanical and electrical blueprints and the capability to operate various mechanical equipment
  • Forklift certified
  • Strong attention to detail with the ability to work effectively as a team member
  • Exhibit flexibility, reliability and mutual respect for fellow employees
  • Strong safety and math aptitude

Work Environment & Physical Demands (choose only the ones that apply)

  • Noise level in the work environment is moderate. Occasional exposure to high noise levels
  • Employee may be exposed to work near moving mechanical parts
  • Occasional exposure to chemicals used in the process
  • Humid conditions and outdoor weather conditions including extreme heat and cold
  • Personal Protective Equipment such as safety glasses, steel-toed boots, flame-resistant clothing, and hearing protection will regularly be required (or may be required)
  • Regularly required to walk, sit, talk, and hear.
  • The employee is occasionally required to stand; use hands to finger, handle, or feel; reach with hands and arms; and may occasionally be required to climb or balance; and stoop, kneel, crouch, or crawl.
  • The employee must regularly lift and/or move up to 25 pounds and may occasionally lift and/or move up to 50 pounds.
  • Specific vision abilities required by this job include close vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.
  • The employee will be required to do some walking/climbing stairs and occasional use of ladders
  • The employee must be able to climb ladders.
  • Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Aztalan Bio LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

Salary Description

$30.00 - $38.00

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