Accounting Assistant

Oneida ESC Group; Wauwatosa (WI); Hybrid; USD 26,000 - 30,000; Full time

Benefits offered by this job

15 Days of Paid Time Off

8 Paid Holidays

1 Flex Holiday

401(k) Retirement Plan with Companyix

Medical, Dental, and Eye Insurance

Employee Referral Program

Tuition Reimbursement

Employee Assistance Program (EAP)

Wellness Program

Job summary

Oneida ESC Group in Milwaukee, WI is seeking an Accounting Assistant to support client invoicing, cash application, and accounts receivable in a hybrid work environment.

The role requires an associate degree in accounting or related field, 0–2 years of experience, strong attention to detail, and proficiency with Microsoft Excel.

You will maintain billing records, assist with data entry and reporting, and collaborate with the finance team to ensure timely and accurate financial processing.

Qualifications

• Associate degree in Accounting, Finance, or related field is required.
• 0–2 years in accounting or billing preferred; government contracts a plus.
• Strong attention to detail and organizational skills.
• Proficiency in Microsoft Suite, particularly Excel.
• Excellent communication skills.

Responsibilities

• Prepare and process client invoices for different contract types.
• Apply cash receipts to customer accounts and ensure accurate posting.
• Monitor accounts receivable and follow up with clients on outstanding balances.
• Maintain organized billing and collection records.
• Support other finance-related tasks as needed, including data entry and reporting.

Skills

Attention to detail

Organizational skills

Excellent communication skills

Education

Associate degree in Accounting, Finance, or related field

Tools

Microsoft Excel

Microsoft Office

Job description

Description

Wholly owned by the Oneida Nation of Wisconsin, Oneida ESC Group (OESC) is a holding company that provides a consistent, cost-effective common management platform supporting our family of companies united under common ownership.

Oneida ESC Group has its roots in engineering, science, and construction. We are a family of tribally-owned diversified subsidiaries. We deliver Environmental Services, Engineering and Design Services, Construction Services, and Technical and Professional Services to government agencies and commercial customers worldwide. With strong technical and project management capabilities, we integrate innovation, experience, and dedication into every project that is supported by a diversity in our services and unity in our strengths.

Oneida ESC Group has an immediate opening for an Accounting Assistant in Milwaukee, WI on a Hybrid Schedule.

Key Responsibilities:

• Prepare and process client invoices for different contract types.
• Apply cash receipts to customer accounts and ensure accurate posting.
• Monitor accounts receivable and follow up with clients on outstanding balances.
• Maintain organized billing and collection records.
• Support other finance-related tasks as needed, including data entry and reporting.

Requirements

Qualifications

• Education: Associate degree in Accounting, Finance, or related field (required).
• Experience: 0–2 years in accounting or billing preferred; experience in government contracts a plus.
• Strong attention to detail and organizational skills.
• Proficiency in Microsoft Suite, particularly Excel.
• Excellent communication skills

Compensation Range: $19- $22/ Hour + Benefits

Benefits:

• 15 Days of Paid Time Off
• 8 Paid Holidays
• 1 Flex Holiday
• 401(k) Retirement Plan with Company Match
• Medical, Dental, and Eye Insurance
• Employee Referral Program
• Tuition Reimbursement
• Employee Assistance Program (EAP)
• Wellness Program

About Us:

The Oneida ESC Group is a family of companies owned by the Oneida Nation of Wisconsin that delivers customer-focused engineering, science, and construction services worldwide.

Our family of companies includes:

• Oneida ESC Group (OESC)
• Oneida Professional Services (OPS)
• Oneida Total Integrated Enterprises (OTIE)
• Mission Support Services (MS2)
• Sustainment & Restoration Services (SRS)
• Oneida Engineering Solutions (OES)
• General Mechanical Corporation (GMC)
• LG2 Environmental Solutions (LG2)
• Oneida Environmental (OE)

We integrate our staff for dedicated, cooperative, and business-like delivery of services to enhance our customers’ missions.

Equal Employment Opportunity:

Oneida ESC Group is an equal opportunity employer committed to inclusion and diversity in the workplace. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws, national origin, disability, veteran status, or other legally protected characteristics.

Oneida ESC Group participates in the E-Verify program. Learn more about the E-Verify program. https://www.e-verify.gov/

Oneida ESC Group is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Oneida ESC Group makes hiring decisions based solely on qualifications, merit, and business needs at the time.