Assistant Bookkeeper

Randstad USA; Town of Islip (NY); On-site; USD 34,000 - 41,000; Full time

Job summary

Randstad USA is seeking a detail-oriented Bookkeeper / Administrative Assistant to join our Holbrook office. You will train under an experienced team member and gradually take on her day-to-day responsibilities, reporting to the Financial Controller / HR Director.

This hands-on role covers daily payments, invoicing, QuickBooks Desktop and Excel tasks, and general administrative support in a small, collaborative environment. Monday–Friday, 9:00 AM–4:00 PM, $25.00–$30.00/hour.

Qualifications

• Bachelor's or Associate's degree required.
• Proficiency in QuickBooks Desktop (not QuickBooks Online).
• Intermediate to advanced Microsoft Excel skills.
• Strong organizational, multitasking and communication abilities.

Responsibilities

• Post daily payments and reconcile accounts.
• Process monthly/weekly billing and complex invoices.
• Maintain financial data using QuickBooks Desktop.
• Provide general administrative support and reporting to the Financial Controller.

Skills

Organizational skills

Attention to detail

Clear communication

Multitasking

Education

Bachelor's degree

Associate's degree

Tools

QuickBooks Desktop

Microsoft Excel

Job description

Location: Holbrook, NY

Schedule: Monday – Friday, 9:00 AM – 4:00 PM

Pay Rate: $25.00 – $30.00/hour ($45,000 – $60,000/year)

About the Role

Randstad is seeking a detail-oriented and organized Bookkeeper / Administrative Assistant to join our close-knit team of 19 employees. In this position, you will train directly under our current team member, transitioning into her full day-to-day responsibilities as she moves into a senior role. You will report directly to our Financial Controller / HR Director.

This is an excellent opportunity for someone who enjoys a collaborative, small-office environment and wants a hands-on, end-to-end understanding of our financial administrative operations.

Key Responsibilities

• Financial Operations: Post daily payments, reconcile accounts, and process monthly/weekly billing.
• Complex Invoicing: Handle ~12+ intricate, detailed invoices regularly, ensuring accuracy and proper coding.
• Software Management: Maintain and manage financial data using QuickBooks Desktop.
• General Administrative Support: Assist with office workflow, reporting, and team coordination alongside Kelly.
• Financial Reporting: Prepare routine updates and reports for the Financial Controller.

Requirements & Qualifications

• Degree: Bachelor's or Associate's degree required.
• Software Expertise: Required proficiency in QuickBooks Desktop (experience exclusively in QuickBooks Online will not qualify) and intermediate-level Microsoft Excel.
• Skillset: Strong organizational skills, sharp attention to detail, high-level multitasking capability, and clear communication skills.
• Team-Oriented: Comfortable working closely in a shared office environment and engaging across a small team.