Invoicing Specialist I

Posted:
3/15/2026, 5:00:00 PM

Location(s):
Sussex, Wisconsin, United States ⋅ Wisconsin, United States

Experience Level(s):
Junior

Field(s):
Customer Success & Support ⋅ Sales & Account Management

We are Energy Systems, the leader in industrial power solution sales, service, and rentals.

With an ongoing tradition of providing excellent products and outstanding service for our customers, Energy Systems is one of the longest existing Generac Industrial Distributors in the United States. We are a full-service distributor of Generac equipment and solutions providing sales, service and rentals.

Major Responsibilities

  • Performs basic review of customer invoices for completeness and accuracy
  • Enters vendor invoices into the accounting system following established procedures
  • Electronically files vendor invoices and required documentation
  • Responds to routine vendor and customer inquiries, escalating complex issues
  • Assists with compiling information for weekly payment runs
  • Maintains organized financial records and support clerical tasks
  • Collaborates with A/R and senior staff by providing documentation as requested
  • Forwards issues related to tax questions or credit discrepancies to senior staff

Minimum Job Requirements

Education

  • High School Diploma or GED

Certification / License

Work Experience

  • 0–1+ years in invoicing, billing, AP, or administrative experience

Knowledge / Skills / Abilities

  • Communication, customer service, attention to detail, time management

Preferred Job Requirements

Education

Certification / License

Work Experience

  •  Familiarity with accounting systems or financial data entry

Knowledge / Skills / Abilities

  • Familiarity with accounting systems or financial data entry

Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk.  On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel.

“We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any other characteristic protected by law.”