Accounts Payable/Accounts Receivable Specialist

Founded in 1998, Princeton Hydro provides integrated ecological and engineering consulting services, specializing in natural resource management, water resources engineering, geotechnical design and investigation, and regulatory compliance.

We are seeking a detail-oriented and proactive AP/AR Specialist to join our team full-time at our Trenton, NJ headquarters. This role will begin with a primary focus on accounts payable and accounts receivable functions, with structured exposure to broader business administration responsibilities over time.

This role offers the potential for long-term development exposure to broader finance and business operations, including accounts payable, accounts receivable, vendor and client coordination, and internal administrative processes. The position is designed for someone interested in expanding their responsibilities over time and growing their understanding of finance administration functions, with mentorship and training provided as part of their professional development.

Key Responsibilities

      Accounts Payable & Vendor Management (Primary Focus)

• Process accounts payable, including invoice entry, coding, and approval workflows
• Manage vendor setup and maintenance, including W-9s, certificates of insurance (COIs), and required compliance documentation
• Maintain organized vendor records and support a standardized vendor onboarding process
• Process time-sensitive payments, including permits and regulatory-related expenses
• Manage vendor portals and recurring payment schedules
• Monitor AP workflows and identify opportunities for improved efficiency and internal controls

      Accounts Receivable & Billing (Core Responsibility)

• Monitor accounts receivable balances and assist with collections follow-up and reporting
• Work with project managers and technical staff to resolve billing questions and discrepancies
• Support client invoicing and billing processes, ensuring accuracy and timely submission
• Support improvements to AR tracking and reporting tools

Qualifications

• Experience in accounts payable, accounts receivable, bookkeeping, or business operations
• Strong attention to detail and ability to manage structured, recurring processes
• Ability to prioritize tasks and work effectively in a dynamic, project-based environment
• Interest in developing into broader business administration responsibilities over time
• Familiarity with AP/AR processes and vendor management preferred
• Experience with accounting or ERP systems (Unanet experience a plus)
• Proficiency in Microsoft Excel, Microsoft Word, and standard business tools
• Organized, dependable, and able to work both independently and collaboratively
• Associate’s degree in accounting, finance, business administration, or related field preferred

Applicants who do not meet every qualification but demonstrate strong alignment with the role are encouraged to apply!

What We Offer

• Hybrid work environment supporting flexibility and reduced commuting
• Comprehensive medical, dental, and vision insurance
• 401(k) retirement plan discretionary company match (currently 5%)
• Generous paid vacation and personal time off
• Paid parental leave
• Fully paid office closure during the last week of December

Princeton Hydro is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. If you require an accommodation to complete the application process or have questions about accessibility, please contact Samara McAuliffe at smcauliffe@princetonhydro.com.

Equal Opportunity is Law 

Pay Transparency Nondiscrimination Provision 

Hourly pay range: $26 – $32 per hour. Final compensation will be based on experience, qualifications, and skills.