Accounting Assistant

ExtensisHR • Brookhaven, New York • Full Time

Posted on Tue, Jun 2, 2026

Who We Are

LK McLean Associates Engineering & Surveying DPC is an established and dynamic 100+ person engineering firm specializing in providing exceptional engineering and surveying services. We pride ourselves on our collaborative culture, client-focused solutions, and professional growth opportunities. As we continue to grow, we are seeking an organized and detail-oriented Accounting Assistant to support our Director of Finance and HR.

Who You Are

We are seeking a detail-oriented and motivated accounting professional to join our growing team. This role will work closely with the Director of Finance and HR and be cross-trained in all core accounting functions, including accounts payable, accounts receivable, project accounting support, and timesheet review. The position will play a key role in maintaining accurate financial records, supporting monthly close, and ensuring the smooth operation of the accounting department.

This is an excellent opportunity for an accounting professional looking to expand their skills and gain exposure to the full accounting cycle within a professional services environment.

The Accounting Assistant will be responsible for the following focus areas:  

What You'll Do

Accounts Payable 

Expense Reports & Timesheet Management 

Accounts Receivable / Project Costing 

Additional Support  

What You Bring

Education and Experience:  

What We Offer

At LK McLean Associates, we believe in supporting our employees' professional development and growth. This role provides an opportunity to gain experience in both accounting and HR within a respected engineering firm. You’ll work closely with a supportive and experienced Corporate Controller and be part of a company that values its team members and fosters a positive work environment.

Growth Opportunity

This role offers significant opportunity for professional development and expanded responsibility over time, including deeper involvement in financial reporting, project accounting, and operational support.

Salary Range: $75,000 - $90,000 per year

#IND1

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