Accounts Payable Specialist

The International Association for the Study of Lung Cancer (IASLC) is the premier international membership association for physicians, researchers, and medical professionals, who are dedicated to conquering lung and thoracic cancers worldwide. We are currently seeking an Accounts Payable Specialist
, to join our team of dedicated professionals.

Day to day, the Accounts Payable Specialist is responsible for managing the full-cycle accounts payable process, ensuring accurate and timely processing of vendor invoices, expense reports, and payments. Main accounting systems used are Sage Intacct accounting software and

The Accounts Payable Specialist must be an organized self-starter with extreme attention to detail, who can effectively work with a collaborative finance team and prioritize workload to meet established timelines.

This nonsupervisory, exempt position is physically based in our downtown Denver, CO office on a hybrid work schedule. This position reports to the Controller.

• Receive, review, and process a high volume of vendor invoices.
• Manage end-to-end invoice workflow within , including invoice capture, routing for approval, and payment set up.
• Ensure  synchronizes properly with Sage Intacct and investigate any errors or discrepancies to take appropriate corrective actions.
• Manage various travel stipend and reimbursement payments requested by employees, programs, & departments.
• Maintain accurate and up-to-date vendor records in both Sage and , including contact information, payment terms, and W-9/tax documentation.
• Onboard new vendors by collecting required documentation and completing internal setup processes in Sage Intacct.
• Assist with month-end and year-end close activities, including accrual preparation and aging report review.
• Support external audits by providing documentation and responding to auditor inquiries related to AP transactions.
• Demonstrate full ownership of assigned projects and duties, with accountability for using effective problem-solving and communication skills to work through issues and for keeping Controller and appropriate parties informed of any concerns.
• Actively support and demonstrate IASLC core values.

• 3+ years of progressive accounts payable experience in a corporate or mid-sized company environment.
• Associate’s degree in Accounting or Business with relevant accounting work experience. Bachelor’s degree in Accounting, Finance, or a related field also acceptable.
• Collaborative approach to working with Finance team and other staff members.
• Proven knowledge of generally accepted accounting principles (GAAP) and standard accounting processes and procedures and internal controls.
• Proficiency in the use of Sage Intacct or another ERP.
• Hands‑on experience with  for digital invoice management, approval workflows, and electronic payment processing.
• Proficiency in Microsoft Excel as well as standard Microsoft Office programs.
• Discretion and confidentiality in handling sensitive financial information.
• Ability to prioritize competing deadlines, maintain the confidentiality of sensitive information, and effectively communicate and present financial information across the organization.
• Exceptional attention to detail with a strong aptitude for numerical accuracy.
• Collaborative, internal customer service approach to working with Finance team and other staff members. A deep commitment to the mission of the IASLC and compassion for those living with lung cancer.

• A meaningful mission. Your work will support global efforts to find effective treatments for lung cancer, one of the most prevalent and deadly forms of cancer worldwide.
• Opportunity to work with leading physicians and researchers. You will meet and promote the activities of the world’s brightest minds in the field of thoracic oncology and exciting new scientific advancements.
• A positive work culture. Our people make the IASLC a special place to work. We are committed to living out our company values at all levels on a daily basis.
• Belong to a collaborative team. Our small team creates a lot of magic through our…