Accounts Payable Coordinator

CIL Isotope Separations, LLC

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Tewksbury, MA

Job Description

As posted by the hiring company

Job Overview:


The Primary responsibilities of the Accounts Payable Coordinator include managing the A/P invoice flow by distributing invoices to the appropriate employees for approval, inputting invoices into the ERP system, matching invoices to purchase orders, selecting invoices currently due for payment, and final filing of invoices. Duties also include maintenance of monthly accounts payable support schedules, reconciliation to the GL, preparation of month end accruals, maintaining state use tax, ensuring W-9’s are obtained for all vendors, and managing the year-end 1099 process. This position has the opportunity for a hybrid work schedule.


  • Receives, codes, and enters vendor invoices daily
  • Reconciles invoices to internal documents such as packing lists and purchase orders, and obtains internal approvals as required per established guidelines
  • Processes weekly check runs, prepares bank check file for upload, maintains check log, and files backup weekly
  • Prepares ACH/wire forms weekly in tandem with check runs. Maintains ACH/wire log, books wires into NAV weekly
  • Researches and interacts with internal departments and vendors to resolve discrepancies and address past due notices
  • Compiles monthly use tax invoices for supervisor and accrues use tax
  • Ensures W-9's are obtained for all vendors and manages the year-end 1099 process
  • Assists with Fixed Asset Accounting
  • Performs other related duties and responsibilities as required


  • High School Diploma. Associate Degree preferred
  • Minimum of two years of Accounts Payable experience. Preferred experience includes, but not limited to: Processing invoices, check runs, and posting associates entries to the general ledger
  • Proficiency with Microsoft Suite (Word, Excel, Outlook)
  • Meticulous attention to detail and accuracy, ability to multitask, prioritize and work within exacting deadlines. Must have the ability to follow tasks through to completion and display strong analytical communication skills


CIL offers a competitive salary and a comprehensive benefit program including generous paid time off, health insurance with no in-network deductibles, Long Term Incentives and 6% matching 401K plan.

CIL is an EEO/Affirmative Action employer.

Learn more about us on our website:

About us:

Cambridge Isotope Laboratories, Inc. (CIL) is the world’s leading producer of stable isotopes and stable isotope-labeled compounds. With nearly 600 employees and laboratories in four countries, CIL specializes in the process of labeling biochemical and organic compounds with highly enriched, stable (nonradioactive) isotopes of carbon, hydrogen, nitrogen and oxygen. Our chemists substitute common atoms (e.g., 1H, 12C, 14N, 16O) with rare, highly valued isotopes (e.g., 2H or D, 13C, 15N, 18O) so that the final product can be readily measured or traced using mass spectrometry (MS) or nuclear magnetic resonance (NMR). CIL’s products are utilized in laboratories, medical, government and academic research centers and health care facilities worldwide.

We are proud that CIL products have contributed to medical advancements in cancer research, new-drug development, environmental analysis, and medical diagnostic research. In the past decade, as the fields of proteomics and metabolomics have developed as leading techniques for determining biomarkers for disease presence, progression and the monitoring of therapeutic response, CIL has worked closely with industry leaders and researchers to provide the stable isotope-labeled tools needed for improved quantitation and qualification of complex biological systems.

After decades of research, stable isotopes have found their place in an ever expanding commercial scale applications in pharmaceuticals, semiconductors, flat panel displays as well as other high technology fields specifically with deuterium oxide (D2O) and deuterium gases. Pharmaceutical companies have begun to investigate deuteration of molecules that may provide advantages over their existing nondeuterated counterparts. In addition, increasing research into the potential medical advantages of new deuterated drugs is also occurring. In high technology, deuterated organic molecules and deuterium gas are commonly used in the manufacturing of microelectronics and OLEDs, which contribute to the increased lifetime of the devices.

Learn more about us on our website: