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Digester Operator Jobs in Wisconsin (NOW HIRING)

... digester, manure feedstock preparation, RNG upgrader, and all supporting equipment and systems by ... and operating supplies Experience/Minimum Requirements · Excellent verbal and written ...

Utility Operator

Grafton, WI · On-site

$58K - $82K/yr

... Operator performs a variety of tasks pertinent to the operation and maintenance of the Village ... digester sludge including: solids, VA/ALK and coliforms, and detailed recordkeeping. - On a ...

Utility Operator

Grafton, WI · On-site

$58K - $82K/yr

... Operator performs a variety of tasks pertinent to the operation and maintenance of the Village ... digester sludge including: solids, VA/ALK and coliforms, and detailed recordkeeping. - On a ...

Wastewater Operator License required. * Have knowledge of the mechanical, biological, chemical and ... Have knowledge of the mechanical, chemical, and biological operation of a digester system.

Digester Operator information

What is a digester operator?

A Digester Operator is responsible for operating and maintaining digesters, which are large industrial vessels used to break down organic materials through chemical or biological processes. These professionals monitor equipment, control operating parameters, and ensure that the digestion process runs efficiently and safely. Digester Operators are commonly employed in industries such as wastewater treatment, pulp and paper, and renewable energy production. Their duties also include troubleshooting equipment issues, collecting samples for analysis, and following safety and environmental regulations.

What is the difference between Digester Operator vs Wastewater Treatment Plant Operator?

AspectDigester OperatorWastewater Treatment Plant Operator
CertificationsTypically requires wastewater treatment certificationsRequires wastewater treatment certifications
Work EnvironmentOperates digesters in waste management or biogas plantsWorks in municipal or industrial wastewater treatment facilities
Industry UsageCommon in waste management, biogas, and renewable energy sectorsPrimarily in municipal and industrial wastewater treatment

Both roles involve operating treatment equipment and require similar certifications. However, Digester Operators focus on digesters used for waste breakdown and biogas production, while Wastewater Treatment Plant Operators manage the overall wastewater treatment process. The roles overlap in certifications and work environments but differ in specific processes and industry focus.

What are some common challenges faced by digester operators, and how can they be addressed?

Digester Operators often encounter challenges such as maintaining optimal operating conditions, troubleshooting equipment malfunctions, and managing unexpected changes in feedstock quality. To address these, operators must closely monitor process parameters, perform routine maintenance, and communicate effectively with maintenance and engineering teams. Staying proactive with preventive maintenance and participating in ongoing training can also help operators adapt to new technologies and regulatory requirements.

What are the key skills and qualifications needed to thrive as a digester operator, and why are they important?

A Digester Operator needs a solid understanding of industrial processes, mechanical aptitude, and usually a high school diploma or equivalent with relevant experience in wastewater treatment or industrial operations. Familiarity with SCADA systems, chemical dosing equipment, and safety protocols is typically required, and certifications like wastewater treatment operator licenses are often preferred. Strong attention to detail, problem-solving skills, and effective communication help operators respond quickly to issues and collaborate with team members. These skills ensure the safe, efficient, and compliant operation of digesters, which is critical for environmental protection and facility productivity.
What cities in Wisconsin are hiring for Digester Operator jobs? Cities in Wisconsin with the most Digester Operator job openings:
Infographic showing various Digester Operator job openings in Wisconsin as of August 2026, with employment types broken down into 49% Full Time, 49% Part Time, 1% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution.

Plant Operator

LF Bioenergy

Brillion, WI

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 9 days ago


Job description

Plant Operator

LF Bioenergy  Brillion, Wisconsin, United States (On-site)

LF Bioenergy (“LF”) is a privately held company that develops, constructs, and operates renewable natural gas (“RNG”) production facilities across the USA. LF’s RNG facilities help agricultural, industrial, and food processing companies reduce greenhouse gas emissions through the production of RNG from organic waste streams. LF was founded in 2021 by a management team with deep experience in the oil, gas, renewable energy, animal agricultural, and food sectors. LF’s combination of prior experience in energy and agriculture is unique to the RNG industry and has provided LF with a large pipeline of growth opportunities.

LF is backed by equity provided by Cresta Fund Management, a value-add middle market private equity fund that invests in sustainable and conventional infrastructure that transports, stores, processes, refines, and sequesters basic materials.

General Summary

LF is looking to hire two Plant Operators to oversee, operate, maintain, and optimize its dairy manure anaerobic digestion RNG plant in Brillion, WI. This role reports to LF’s Senior Regional Operations Manager.

The Plant Operators will have overall responsibility for operating performance, safety, and environmental compliance of the facility, including daily interfacing with SCADA control, making operating changes, executing preventative maintenance, performing lab work, and submitting environmental compliance reports while maintaining a safe work culture.

The plant is currently under construction and is expected to be commissioned in later 2025. During the construction period, the Plant Operators will assist in the oversight of construction activities, help set up the shop and warehouse, support the development of operating manuals and standard operating practices, and train in the operations, maintenance, and control of the specific equipment that is being installed.

Working Conditions

·         Daily use of computers and electronic control systems for process equipment

·         Daily use of gas sampling equipment, mobile process analyzers and laboratory equipment

·         Regular use of industrial vehicles and the operation of heavy machinery

·         Periodic lifting or moving of heavy materials up to 60 lbs.

·         Regular use of a variety of power and manual tools

·         Ability to walk over uneven terrain or climb up equipment ladders

·         Standing on feet for extended periods of time

·         Personal protective equipment must be worn in the performance of some duties (e.g. hard hats, safety glasses, gas monitors, high vis vests, etc.).

·         Work with hazardous materials may be required

·         Position may require extended working hours contingent on "on-call" status

Primary Duties

·         Responsible for ensuring all personnel on site comply with safety, environmental, and social regulations

·         With the assistance of Management, the Plant Operator will work to continuously improve plant operations via research on technology, process methods, and reactions to plant performance

·         Act as primary liaison for LF Bioenergy with Farmer partner, contractors, and other third-party entities

·         Monitor, maintain, and operate dairy manure anaerobic digester, manure feedstock preparation, RNG upgrader, and all supporting equipment and systems by performing operational adjustments, preventative maintenance, corrective maintenance, analyzing charts, and submitting reports

·         Report to the Director of Operations weekly with production, availability, operational trends, etc.

·         Ensure overall the facility is kept safe, clean, and presentable at all times

·         Perform labwork, record data, and draw conclusions that informs process control

·         Coordinate with, manage, and oversee all vendor and contractor work and deliveries, assisting where possible

·         Manage budget while ensuring compliance with accounting practices

·         Maintain the inventory and proper storage of all spare parts and operating supplies

Experience/Minimum Requirements

·         Excellent verbal and written communication skills

·         Experience and knowledge of mechanical and electrical fundamentals

·         Ability to think critically with a sense of ownership and pride in one’s work

·         High School Diploma or GED

·         Knowledge of PLC/SCADA controls

·         Basic computer skills, including Microsoft Outlook, Word, and Excel

·         Ability to work cohesively in a highly effective team environment

·         Flexibility for 'on call' support or varied schedule needs

·         Must have and maintain a valid driver’s license

·         No felony convictions or open arrest warrants

·         Pass a physical exam and aptitude test

·         Provide reference checks related to previous employment

Desired Skills/Abilities

·         Anaerobic Digester, energy facility, or similar process plant operations experience

·         Electricians, Mechanics, and other tradesmen are encouraged to apply

·         Technical training and/or certification

·         College education/degree

Compensation and Benefits

·         Fixed salary, commensurate with experience

·         Up to 20% bonus potential

·         Overtime pay or time off in lieu of, for call-outs

·         Statutory holidays in the State of Wisconsin

·         2 weeks of additional paid time off

·         Medical, Dental, and Vision plan

·         Flexible spending account or Health Spending Account available

·         Long-term disability and life insurance are available

·         Retirement plan, with matching contribution up to 6%

Equal Employment Opportunity (EEO) Statement

LF Bioenergy is an Equal Opportunity Employer. All applicants will be afforded equal opportunity without discrimination because of race, color, religion, sex, sexual orientation, marital status, national origin or ancestry, age, physical or mental handicap unrelated to ability, or an unfavorable discharge from military service.

Disclaimer

This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee. Other duties, responsibilities, and activities may change or be assigned at any time with or without notice.