Senior Accounts Payable Specialist

Req Id: 418 Location: CLARKSBURG, MD, US, 20871 Date: Jun 30, 2026 Thales Defense & Security, Inc. (TDSI) Headquartered in Clarksburg, MD, is a U.S. company that has been serving domestic and international defense Air, Land and Sea domains for 60+ years. With over 1,000 employees, TDSI and its four subsidiaries (Advanced Acoustic Concepts, Digital Receiver Technology, Tampa Microwave, and Trusted Cyber Technologies), supports U.S. Joint Services, special operations forces and multi-national partners with a variety of communication, visualization, signal intelligence/electronic warfare, and sensor/sonar capabilities. TDSI’s key technologies include tactical handheld radios, expeditionary satellite terminals, helmet-mounted displays, optics and target recognition capability, advanced radars, undersea sensing and missile systems. Lives depend on what we do! Top Benefits Competitive Salary Yearly Incentive Compensation Plan Medical insurance for self and eligible family members Generous 401(k) program- up to 7% company contribution and 100% immediate vesting Tuition Reimbursement Paid wellness, vacation, and holiday leave Paid maternity, paternity, and parental leave 9/80 Work Schedule (every other Friday off) Hybrid working environment We are seeking a Senior Accounts Payable Specialist . This is a full-time, hourly/non-exempt position in our Clarksburg, MD campus and will report directly to the Accounting Operations Manager. Responsibilities Oversee end‑to‑end Accounts Payable operations to ensure accurate and timely processing. Manage and resolve complex or escalated invoice issues in coordination with internal stakeholders. Monitor invoice approvals to ensure timely responses and adherence to controls. Serve as an AP owner for SAP S/4HANA, ensuring accurate data and efficient workflows. Review and approve AP batches with complete and accurate documentation. Oversee corporate expense report processes, including compliance, exceptions, and delinquent submissions. Support international travel reimbursement processes in accordance with company policies. Ensure accurate vendor setup and compliance documentation, including W‑9s and annual 1099 reporting. Maintain organized AP records and ensure readiness for audits. Reconcile AP and credit card accounts, identifying and resolving discrepancies. Drive process improvements and support development and updates of SOPs. Support month‑end close activities, including AP accruals and aging reviews. Manage vendor relationships and act as the escalation point for inquiries and payment issues. Collaborate with Finance, Procurement, Travel, and Operations to strengthen controls and improve efficiency. Qualifications The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. U.S. Citizenship required. Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. 3+ years in AP Business Environment AA in Business/Accounting preferred. Proficiency with enterprise accounts payable systems; SAP S/4HANA experience strongly preferred. Proficiency with Microsoft Products (Word, Excel, Outlook, Sharepoint, Teams). Ability to show advanced problem-solving capabilities and welcome opportunities to pursue solutions and goals. Excellent written and verbal communication skills. Able to meet deadlines while maintaining high accuracy in work through keen attention to detail. Maintains confidentiality and demonstrates sound judgment. Demonstrates initiative and urgency with reliable follow-through and execution skills. Strong organizational, analytical, and critical‑thinking skills. Fosters a collaborative work environment and partners seamlessly with cross‑functional teams. Ability to deliver exceptional customer service to both internal stakeholders and external vendors, ensuring timely and accurate issue resolution. Is capable of self-driven or project based work; can be give a problem and will come back with solutions/answers without constant oversight. Ability to comply with all Company guidelines, policies, procedures and embrace Company Core Values. The hourly pay range for this role is $28.27 - $36.13 USD along with a target incentive compensation plan (ICP) of 3% . The pay range provided is a good faith estimate representative of the experience level for the role described above. TDSI considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Thales Defense & Security, Inc. is committed to non-discrimination as applicable under federal, state and local laws. We are an E-Verify Employer. If you need an accommodation or assistance in order to apply for a position with Thales Defense & Security, Inc., please call Human Resources at View phone number on click.appcast.io. Nearest Major Market: Washington DC #J-18808-Ljbffr