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Accounts Payable Specialist

Quantum-Si
San Diego, CA Full Time
POSTED ON 12/8/2025 CLOSED ON 1/4/2026

What are the responsibilities and job description for the Accounts Payable Specialist position at Quantum-Si?

We are seeking an Accounts Payable Specialist to become an integral part of our team! This role will focus on day to day accounts payable processing and play an important role in supporting the broader team with the monthly financial close. The ideal candidate will thrive in a fast-paced work environment.



As part of our team, your core responsibilities will be: 

  • Verify the accuracy of invoices, ensure proper approval, and prepare invoices for payment
  • Ensure all payables are properly coded and recorded to the correct GL account, department, and location
  • Coordinate vendor setup and maintain compliance with company policies
  • Review and process expense reports while ensuring compliance with company policy
  • Audit corporate card changes, coding and reconcile against monthly statements
  • Support month-end close processes for pre-paid expenses, accounts payable, and fixed assets as needed
  • Process payment runs for vendor payments and employee reimbursements
  • Work with all employees to ensure their understanding of accounts payable protocol
  • Research and resolve employee and vendor AP related issues
  • Various project-based work as needed for efficiency, scalability and control



Qualifications

  • Bachelor’s degree in accounting or finance with 5 years of experience (experience in medical device or pharmaceutical industry a plus)
  • Experience working in a high growth, fast paced environment
  • Familiar with both automated and non-automated accounts payable practices and processes.
  • ERP experience with an understanding of accounts payable automation workflows, NetSuite experience a plus
  • Experience with expense reporting tools, Expensify a plus
  • Tipalti or other OCR solution tool experience
  • Must be a self-starter who can communicate across multiple levels of the organization
  • Extremely well organized with an ability to manage multiple tasks at once
  • Applies analytical skills to evaluate and interpret complex situations for resolution
  • Demonstrated ability to create and simplify policies and procedures
  • Communicates in clear and concise manner, both orally and written
  • Expert proficiency with Excel



The estimated base salary range for this role based in the United States of America is: $75,000 - 85,000. Compensation decisions are dependent on several factors including, but not limited to, level of the position, an individual’s skills, knowledge and abilities, location where the role is to be performed, internal equity, and alignment with market data. Additionally, all full-time employees are eligible for our discretionary bonus program and equity as part of the compensation package.  

Quantum-Si does not accept agency resumes.

Quantum-Si is an E-Verify and equal opportunity employer regardless of race, color, ancestry, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability or Veteran status. All your information will be kept confidential according to EEO guidelines.

Salary : $75,000 - $85,000

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