The Sr Accounts Payable Specialist supports ATS financial operations by ensuring timely and accurate processing of obligations, maintaining accounts payable records, managing vendor relationships, and supporting financial reporting. This role works closely with corporate and branch finance teams to uphold ATS standards of precision, reliability, and operational excellence.Responsibilities:Review invoices for proper documentation and required approvals before paymentProcess high volumes of invoices with accurate job and general expense codingPrepare payroll deductions for personal visa purchasesServe as liaison between corporate and branch accounts payable departmentsRespond to vendor inquiries and resolve discrepanciesMaintain reports, spreadsheets, and filing systems related to accounts payableAssist Corporate Financial Officers and branch personnel as neededSupport monthly closing activities and prepare account analysesManage the AP inbox including invoice submissions, statement reconciliation, remittance advice, billing issues, and escalation routingLead and coordinate new vendor setup and COI, ensuring collection and filing of required documentation such as W–9sComplete three-way match of purchase orders, receipts, and invoicesPerform additional duties as assigned by managementRequired Experience and Skills:High school diploma or equivalent; associate degree in accounting or related field preferred5+ years of accounts payable or general accounting experienceProficiency in Microsoft Office Suite with emphasis on ExcelFamiliarity with accounting software and ERP systemsStrong attention to detail and organizational skillsAbility to manage multiple tasks and meet deadlinesExcellent communication and interpersonal skillsDemonstrated problem solving and customer service abilitiesAdditional requirements:Ability to sit for prolonged periods while working on a computerAbility to lift up to fifteen pounds occasionally such as files or boxesManual dexterity to operate office equipment including printers, copiers, and scannersWork Conditions:Standard office setting with a collaborative and professional atmosphereRegular interaction with internal departments and external vendorsOccasional overtime may be required during month end or year-end closing periodsEOE/AA/M/F/Vet/DisabledATS is an Equal Opportunity and Affirmative Action Employer encouraging diversity in the workplace. All qualified applicants will receive consideration for employment without regard to their race, color, creed, religion, national origin, citizenship status, ancestry, sex, age, physical or mental disability unrelated to ability, marital status, family responsibilities, pregnancy, genetic information, sexual orientation, gender expression, gender identity, transgender, sex stereotyping, order of protection status, protected veteran or military status, or an unfavorable discharge from military service, and other categories protected by federal, state or local law.