Accounts Payable Administrator

Solid Power•Thornton, CO

6h•Onsite

About The Position

Solid Power is seeking an Accounts Payable Administrator to join their dynamic, fast-paced, and collaborative team. This role will work closely with the Director and be a key resource overseeing accounts payable functions. The ideal candidate possesses impeccable attention to detail, is a critical thinker, has a positive attitude, seeks constant improvement, thrives in a dynamic environment, and can work both collaboratively and independently. The Accounts Payable Administrator is responsible for leading the day-to-day operations of the Accounts Payable function, including high-volume invoice processing through Esker and SAP, ensuring timely and accurate vendor payments, managing vendor onboarding and maintenance, and partnering closely with Procurement and business stakeholders. This role also ensures compliance, internal controls, and annual 1099 reporting. A strong process mindset, exceptional communication skills, and a deep understanding of AP best practices within a public-company environment are required.

Requirements

5+ years of relevant accounts payable experience required.
Experience with preparing journal entries in support of month-end accounting records.
Exceptional attitude, attention to detail, and proven ability to work within a team.
Excellent time management, prioritization, communication, and follow-up skills.
Ability to work collaboratively with cross functional team members and with external partners.
Works within and meets all deadlines while executing on multiple deliverables and workstreams.
Strong written and verbal communication skills.
Demonstrated experience processing high-volume invoices in a complex, multi-entity environment.
Knowledge of GAAP, SOX, and internal controls in a public-company environment.

Nice To Haves

BS/BA in Accounting, Finance, or Economics preferred.
Extensive experience utilizing an OCR (optical character recognition) invoice processing system, a strong plus.
Experience with SAP or Esker preferred but not required.

Responsibilities

Perform end-to-end AP processes including vendor setup, invoice intake, workflow approvals, 3-way match, exception handling, and downpayment processing.
Oversee invoice processing through Esker (OCR/workflow automation) into the Company ERP, SAP (posting, coding, payment execution).
Ensure timely and accurate payment of vendor invoices in accordance with company policy, contract terms, and SOX compliance requirements.
Monitor AP aging, payment schedules, and working capital impacts (e.g., DPO targets).
Maintain AP metrics, KPIs, and dashboard reporting.
Oversee vendor onboarding, setup, and master data maintenance, ensuring accuracy and completeness.
Manage vendor communications, issue resolution, payment inquiries, and relationship building.
Ensure vendor documentation is collected and validated (W-9, banking details, tax IDs, insurance, etc.).
Establish strong controls around vendor master data to mitigate fraud risk.
Manage the annual 1099 preparation and filing process, including vendor classification, data validation, corrections, and year-end reporting.
Ensure AP processes comply with GAAP, SOX, and internal control requirements.
Support external and internal audit requests related to AP.
Own the AP month-end close process, ensuring the AP subledger is closed accurately and on schedule.
Prepare AP-related journal entries to support accounting records, including accruals for GRIR, accruals for invoices not yet processed, reclasses and adjustments.
Reconcile AP-related general ledger accounts, including vendor accounts and clearing accounts.
Review and validate month-end AP reporting and variance analysis.
Partner with Accounting to ensure completeness and accuracy of period-end liabilities.
Serve as the AP point of contact for Procurement, Legal, and business units to ensure proper purchasing workflows and supplier engagement.
Partner with Procurement on supplier onboarding, contract terms, and PO compliance.
Train internal stakeholders on AP policies, approval workflows, and system usage.
Maintain expert-level knowledge of Esker and SAP AP modules, including troubleshooting, system enhancements, and process optimization.
Identify automation opportunities and lead continuous improvement initiatives to improve efficiency, accuracy, and control.
Document and update AP policies, procedures, and work instructions.