Position at Nissin Ion Equipment USA, Inc.
Part-time Bookkeeper / Accounting Assistant (NIUSA-2026-03)
Job Summary
Nissin Ion Equipment USA, Inc. (NIUSA), our U.S. subsidiary and part of the Sumitomo Electric Group, is seeking an experienced Bookkeeper/Accounting Assistant to support daily accounting operations for the North Billerica, MA office, with limited support for the Texas office. Responsibilities include bookkeeping in QuickBooks (mainly AP/AR, expense reimbursements, and bank reconciliations) and assisting with the preparation of monthly and quarterly reporting data for our Japan headquarters. The role also supports expatriates and business travelers from the Japan HQ, including hotel and rental car arrangements. While English is required for daily business communication, some Japanese will be used when coordinating with the Japan HQ and visiting staff. Working hours are 3–5 hours per day between 10:00 AM and 4:00 PM.
Duties and Responsibilities
Key Responsibilities (High-level)
Daily bookkeeping in QuickBooks (AP/AR, expenses, reconciliations)
Prepare data for monthly/quarterly reporting to Japan HQ
Support expatriates and business travelers (hotel/car)
Light support for TX office (expenses, coordination)
Detailed Responsibilities
Accounts Payable (Vendors)
Perform a three-way match; enter transactions into QuickBooks; assign Class.
Schedule payments; process by check or online payment.
Create a Journal Slip for each bank transaction; maintain monthly filing.
Accounts Receivable (NIC)
Issue invoices to NIC; prepare monthly netting statement.
Reports
Generate monthly Cash Flow Report, Netting Statement, Sales Report.
AP Supporting Documents
Collect supporting documents for AP transactions (vendor bills, receipts, transaction copies).
Match supporting documents with Vendor Bills and Packing Slips for non–credit card transactions.
Maintain organized filing for all AP-related documents.
Corporate Credit Cards
Obtain monthly credit card statements from the bank.
Collect supporting receipts related to credit card transactions.
Enter credit card transactions into QuickBooks.
Perform monthly credit card reconciliation.
Maintain organized files for credit card statements and supporting documents.
Inventory
Prepare Physical Inventory sheets at the beginning of each month.
Post monthly usage; quarterly counts; make adjustments; record year-end reserve.
DIVA Reporting (Quarterly Reporting)
Prepare quarterly reporting sheets; map accounts.
Bank Reconciliation
Download bank statements and perform bank reconciliations.
Monthly Close
Communicate with Pasona; confirm and share WIP; allocate Health Insurance; record necessary Journal Entries.
Annual Filings & Local Taxes
Prepare Annual Report; handle Personal Property Tax.
Provide Administrative Support
Provide administrative support as needed.
Requirements and Qualifications
Required Qualifications
1+ years of bookkeeping/accounting experience; business-level English; conversational-level or higher Japanese; strong attention to detail.
Preferred Qualifications
QuickBooks experience; Japanese company experience; expatriate support; experience assisting with month-end close.
Working Conditions
Part-time; approximately 3-5 hours/day; onsite; $28–$32/hr.
Contract Term & Renewal
12-month review; possible renewal; at-will employment.
Reports To
Accounting Manager (U.S. Subsidiary)
Location
North Billerica, MA (primary)
About Nissin Ion Equipment USA, Inc.
Nissin Ion Equipment USA, Inc. (NIUSA) is a multinational company supplying and supporting state-of-the-art ion implanters and flat-panel display equipment. Nissin Ion has multiple subsidiaries that support their equipment, which is supplied to the world's leading foundry, logic, memory, and flat panel display companies.
NIUSA has two locations in the United States. The sales and service office is located in Austin, Texas, while the R&D and applications office is located in Billerica, Massachusetts.
Please visit for more info: https://www.nissinimplanter.com/.
NIUSA is an Equal Opportunity employer and will consider all qualified applicants for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, national origin, disability, age, genetics, protected veteran status, or any other characteristic protected by law.
About Sumitomo Electric Group
Sumitomo Electric Industries, Ltd. is a recognized global technology leader with over 280,000 employees across approximately 400 group companies in 40 countries. Building on more than 120 years of innovation, today Sumitomo Electric is engaged in diversified business activities that support people’s daily lives and industries in five business segments: automotive, infocommunications, electronics, environment & energy, and industrial materials. To learn more about Sumitomo Electric, please visit https://sumitomoelectric.com. You can watch videos from our past interns and corporate profiles from our YouTube Channel (https://www.youtube.com/user/SumitomoElectric/). Follow us on LinkedIn (https://www.linkedin.com/company/sumitomo-electric).
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