Accounts Payable Specialist

Finance/Accounting Waltham, Massachusetts


Our growing Accounting team is seeking an experienced Accounts Payable Specialist to join our growing team.

The Accounts Payable (AP) Specialist is a key member of our Finance team and is responsible for carrying out the daily AP functions per the Company’s stated policies and procedures, which primarily includes obtaining required invoice approval and appropriate coding of invoices, entering of vendor invoices accurately, processing vendor payments timely, responding to vendor inquiries within two business days, as well as assist with other responsibilities as assigned.

Key Responsibilities Include:

  • Ensures all negotiated contracts and vendor invoices are paid as agreed upon for US, Australia and Switzerland operations, responsible for full cycle AP responsibilities:
  • Work with procurement and FP&A teams to ensure proper application of invoices to purchase order and the appropriate coding of non-PO based invoices.
  • Identify, investigate and resolve purchase order, contract, invoice or payment discrepancies.
  • Perform 2-way or 3-way match as required by the stated procedures, gather and route invoice packages to appropriate personnel for approval.
  • Accurately input invoices into accounts payable sub-ledger, including selecting the appropriate payment terms to take advantage of vendor trade discounts, breaking out sales and use taxes where applicable for sales use tax compliance purposes, and ensure appropriate department and GL account coding is applied.
  • Prepare check runs, coordinate signatures for checks, and subsequently mail the checks per the company’s stated procedures.
  • Prepare wire payments for international vendor invoices.
  • Respond to any internal and external AP related inquiries within two business days.
  • Assist with the preparation of 1099 reporting at the end of year.
  • Assist with sales and use tax reporting as required.
  • Provide daily/weekly AP status updates to the finance team as required and communicate non-routine activities to the AP Manager expeditiously.
  • Adhere to data entry and metadata object description schema standards and other metadata schema standards set forth by the company and for electronic material filing.
  • Maintain all vendor related records, including:
  • Assist with the creation of new vendors in the accounting system and ensure appropriate tax documentations for vendors is maintained (i.e. W-9 for US vendors and W-8BEN for foreign vendors, as required).
  • Maintain files of vendor invoices and vendor accounts by reconciling monthly statements and related transactions.
  • Provide supporting documentation when needed for audits.
  • Assist with process improvements and system implementation projects as assigned.
  • Other responsibilities as assigned.

Education, Registration & Certification:

  • Bachelor’s Degree in accounting or equivalent number of years of experience


  • 3 year relevant experience in accounts payable
  • Prior experience in a public company required Bio-tech industry, a plus

Skills, Knowledge & Abilities:

  • International Processing Required
  • Ability to work in a dynamic and collaborative work environment
  • Strong attention to detail
  • Strong organizational and interpersonal skills
  • Strong written and verbal communication skills
  • Proficient with Microsoft Excel
  • Ability to review images and work at the computer for long periods of time
  • Ability to take initiative and be involved in implementing new processes and use of technology

Physical Demands and Work Environment:

This is largely a sedentary role; however, some filing is required. This would require the ability to lift files, open filing cabinets and bend or stand on a stool as necessary.

This job operates in a professional office environment and routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines.

Benefits and Perks:

Apellis offers a great benefit package which includes: health insurance with full premium coverage, 401K with company match, paid time off (PTO), long- term disability insurance, life insurance and more!  Visit to learn more.

EEO Statement: Apellis is an equal opportunity employer and complies with all applicable federal, state and local fair employment practices laws. Apellis strictly prohibits and does not tolerate discrimination against employees, applicants or any other covered persons because of race, color, religion, creed, national origin or ancestry, ethnicity, sex (including pregnancy), gender (including gender nonconformity and status as a transgender or transsexual individual), age, physical or mental disability, citizenship, past, current or prospective service in the uniformed services, genetic information, marital status, AIDS/HIV status, smoker/nonsmoker, and occupational pneumocononiosis or any other characteristic protected under applicable federal, state or local law.