Supervisor, Accounts Payable

About the role

The Supervisor, Accounts Payable is responsible for leading and managing the accounts payable team to ensure accurate, timely, and compliant processing of all vendor invoices and payments. This role provides strategic oversight of AP operations, drives process improvements, and ensures adherence to internal controls and regulatory requirements. The ideal candidate will combine strong accounts payable knowledge with exceptional leadership abilities to mentor team members, optimize workflows, and support the organization's financial objectives. About You Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower - to join us in this critical mission. We're looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Responsibilities

• Oversees all aspects of the accounts payable function, including invoice processing, vendor management, and payment cycles, ensuring accuracy and timeliness in all transactions.
• Manages and develops AP team members through training, mentoring, and performance management while fostering a collaborative and high-performing work environment.
• Analyzes payment trends, aging reports, and cash flow forecasts to provide insights that support strategic financial decision-making.
• Implements and maintains robust internal controls to ensure SOX compliance and audit readiness.
• Identifies and resolves discrepancies, payment issues, and invoice disputes through effective problem-solving and cross-functional collaboration.
• Drives process improvements and efficiency initiatives, including leveraging accounts payable automation tools and ERP systems to streamline operations.
• Supports month-end close activities and performs account reconciliations
• Leads or participates in system implementations and change management initiatives.
• Communicates regularly with vendors, internal departments, and finance leadership to ensure alignment with accounting principles, regulatory requirements, and tax-related compliance considerations.

Requirements

• Bachelor's degree in Accounting, Finance, Business Administration, or related field (or equivalent work experience in lieu of degree)
• Strong leadership and people management skills with proven ability to train, mentor, and develop team members
• Expertise in managing accounts payable processes, including invoice processing, vendor management, and payment cycles
• Experience analyzing payment trends, aging reports, and supporting cash flow forecasting
• Demonstrated ability to drive and implement process improvements within accounts payable operations (e.g. reducing processing times)
• Knowledge of internal controls, SOX compliance, and audit requirements
• Exceptional attention to detail with the ability to identify and resolve discrepancies and payment issues
• Strong cross-functional collaboration skills and stakeholder communication experience
• Problem-solving and decision-making abilities in resolving invoice and payment disputes
• Experience in a supervisory or team lead role within a high-volume AP environment
• Experience with system implementations and change management initiatives
• Background supporting month-end close activities and performing account reconciliations
• Experience in 1099 reporting and other tax needs (e.g. sales/use compliance)
• Experience supporting DCAA (Defense Contract Audit Agency) audits

Benefits

Additional Information

Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond. Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space. We are mission-driven, and together, we are an extraordinary team.

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