Operations and Maintenance Supervisor

Operations & Maintenance Supervisor

Work Location: Aberdeen, SD

Pay range: $83,600 to $139,300 per year

Employment Status: Regular Full-time

External candidates apply at northwesternenergy.com

Internal candidates apply through iConnect.

About this position:

This position is under the general direction of the SD Production Superintendent, and performs leadership duties that will ensure safe, efficient, and reliable operation of the South Dakota generation assets. Performs all duties in compliance with plant policies, procedures, rules, and regulations pertaining to operations, safety, conduct, and housekeeping. Protects the generation assets in machinery, equipment and facilities by exercising care, skill and knowledge.

We offer great benefits:

NorthWestern Energy is a fully regulated electric and natural gas utility serving Montana, South Dakota and Nebraska. We employ over 1,600 amazing people and serve over 800,000 customers who are our neighbors in our communities. We are a top employer and offer competitive benefits, including:

• 401K with company match up to 4% and non-elective contribution up to 7%


• Healthcare and wellbeing programs, including dental and vision for you, your spouse and dependents, Health Savings Account (HSA), healthcare and dependent care flexible spending account (FSA)


• Employee Assistance Programs (Offering up to six free counseling sessions, per person, per issue, per year for employees, spouses and dependents to include financial heath)


• Life Insurance (Company pays basic employee policy; spouse, dependent insurance also available)


• Tuition reimbursement


• Competitive pay (Scheduled performance-based wage increases and annual incentive opportunities.)


• Paid company endorsed volunteer opportunities


• Paid parental leave


• Paid bereavement leave


• Paid training opportunities


• Paid time off starting on your first day, plus 11 paid holidays

Benefits may vary by position or as negotiated as part of a collective bargaining agreement.

About this job:

• Oversees the monitoring, inspection, and control of all power production, auxiliary and facility equipment to ensure safe, legal, continuous and efficient operation. Ensures that plant emissions and effluents are within limits. Takes action necessary to prevent any safety violations, environmental excursions, or production loss.


• Reports discrepancies in operation and/or conditions in a timely manner


• Provides general directions to subordinate classifications


• Directs operations and maintenance staff in the inspection, repair, and operation of the SD generation assets.


• Assist in the training and development of Operations and Maintenance Staff


• Performs assigned tasks in the qualification program for the Plant Staff


• Relieves Plant Operators, when required, in times of personnel shortage or Emergency Operations


• On limited basis, performs hands-on operational maintenance repairs, where necessary, and assists others making repairs to all equipment


• Generates maintenance work order requests and purchases requisition requests. Is familiar with SAP


• Assists SD Superintendent in development and monitoring of plant budgets, operating plan, and development of technicians. Performs other duties as assigned by the SD Superintendent


• Continually develops knowledge of the Plant and power plants in general


• Provides hands-on leading-edge approaches to the facility's safety, health and training program


• Assists the Compliance Coordinator with the Environmental QA/QC program and compliance with all environmental regulatory requirements


• Prepare and submit required reports


• Oversee the daily upkeep of necessary plant logs and records


• Oversees the Lockout/Tagout (LOTO) program and database, including Red Tag Pro administration.


• Responsible for inventory management and procurement


• Maintain the plant Operations Manuals and assure that operating policies and procedures are kept up-to-date


• Must be able to work extended working hours and varied shifts with weekend and holiday work, as required by schedules, work load, and plant conditions


• Perform individual lifts and manipulate equipment weighing up to 50 pounds


• "On call" status will periodically be required


• All NorthWestern Energy employees are required to adhere to company safety standards and the Code of Business Conduct & Ethics


• Ensure all actions are consistent with NorthWestern Energy's values, mission, and strategic business objectives

Am I right for this job? Here's the success profile:

• Demonstrate and maintain a good safety record


• Bachelor of Science degree in engineering or equivalent work experience required


• Must possess strong interpersonal communication skills


• Must possess 5 years of power plant or similar experience


• Demonstrated experience operating and maintaining dual-fuel combustion turbines and reciprocating internal combustion engines, with preference given to candidates familiar with Solar, Caterpillar, and Mitsubishi equipment.


• Must possess at least 2 years' experience supervising represented technical, supervisory and administrative personnel


• Valid drivers license and satisfactory driving record


• Demonstrated ability to lead and motivate the workforce while maintaining collaboration, accountability, and performance standards


• Get Into Energy - Energy Industry Fundamental 2.0 certification is a plus (click here to certify at no cost)

Requisition #4882

Posting Dates: October 29, 2025 through November 12, 2025

Department/Division: Energy Supply

Employment Physical: Required

Drug Test: Required

Background Check: Required

Relocation Benefit: Negotiable

Telecommuting: None

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, age, disability, veteran status, genetic information or any other protected class in accordance with applicable federal or state laws and statutes. In compliance with the ADA Amendments Act, should you have a disability that requires assistance and/or reasonable accommodation with the job application process, please contact the Human Resources department at 1-800-245-6977 or at job.inquiries@northwestern.com.