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Miller

Open 20d

Join a team that helps produce renewable fuel for the future. We are hiring a Miller to support our ethanol plant operations, where safety, reliability, and continuous improvement are at the core of everything we do. This position works a 2-2-3 rotating schedule with 12-hour shifts, alternating between day and night shifts every six weeks, and plays a key role in ensuring safe, efficient, and reliable plant operations. We offer competitive pay of $27 - $33/hr and a strong benefits package that includes health, dental, and vision insurance; additional ancillary plans; a 401(k) with company match; paid time off; and sick time.

What We Offer:

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

Position Overview

The Miller oversees the daily operation of the fractionation plant. Working a 12-hour rotating shift schedule while maintaining a safe work environment. Monitors and maintains production quality and equipment, while supporting the policies, goals, and objectives of the Company.


Duties and Responsibilities

  • Monitor the operation of the Mill to ensure requested quality and quantity produced.
  • Anticipate and solve problems in a timely manner and identify opportunities for improvement.
  • Troubleshoot, anticipate and correct problems associated with plant operations. May need to inspect different areas of the plant to locate problems.
  • Perform minor repairs to prevent damage to milling equipment.
  • Use visual analysis and test results to monitor all the product streams, ensuring a consistent and quality product output.
  • Document process variables, sample data and routine tasks as required for position, to ensure mill operations are maintained within operating parameters.
  • Monitor use and inventories of supplies.
  • Communicate with the lab to anticipate or remedy any problems to ensure the highest quality and optimize the facility’s efficiency.
  • Communicate with management and the maintenance department to anticipate or fix problems in a timely manner. Prepare equipment to ensure it is safe for maintenance/contractors to perform scheduled work.
  • Handle chemicals according to the MSDS safety sheets.
  • Cross train with other operators to assure adequate coverage during unexpected interruptions in the plant.
  • Participate in projects that improve efficiency and/or reduce operating costs.
  • Perform scheduled Operations Work Requests as requested by Supervisor or Plant Management.
  • Participate in safety, health, and environmental programs (LOTO-lock out tag out, Safe Work Permit, FSMA-Food Safety Modernization Act). Participate in programs and procedures required to ensure safe work practices and plant cleanliness.
  • Perform other duties as assigned to maintain a safe, reliable, and consistent operation.

Who is Aztalan Bio?


Located outside Jefferson, WI - Aztalan Bio is a biorefinery that utilizes a dry front-end fractionation system which separates corn components (starch, protein, germ) before the distillation process, leading to a wider range of products and potentially higher efficiency - producing corn oil, ethanol, corn germ, bran, and distillers’ grains. These outputs support a wide range of markets, including food production, animal nutrition, and renewable energy.


The plant has been in operation since 1898, first as a malting company and then, in 2006, was converted to ethanol production, becoming Wisconsin’s largest ethanol operation. Over the coming years, Aztalan Bio will undergo a similar transformation to its sister facility, Pannonia Bio in Hungary, to create a next-generation biorefinery tailored to Wisconsin’s agricultural strengths and diversity.


Building on more than a century of history, this next chapter is about investing in people, progress, and community. With the revitalization of this historic plant and the hiring of a new workforce, we are creating opportunities for local employees while reinforcing generations of partnership with farmers.


Aztalan Bio is owned by ClonBio Group who is family-owned and invests in their people for long-term success.


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