Sr. Accounts Payable Specialist

Twelve is a new kind of chemical company built for the climate era. Our breakthrough technology eliminates emissions by turning CO2 into essential products. We are a team of scientists, engineers and problem solvers on a mission to fundamentally shift the way the world addresses climate change and lead the transition to a fossil free future with our carbon transformation technology.

Are you detail-obsessed, process-driven, and energized by keeping things running like a well-oiled machine? We’re looking for a Senior Accounts Payable Specialist who thrives in a dynamic, team-oriented setting and is ready to take charge of the payables process from end to end. You’ll be more than just a number cruncher—you’ll be a key player in ensuring our vendors are paid on time, our employees are reimbursed fairly, and our financial operations run smoothly and efficiently. Report directly to the Senior Accounting Manager, you will play a key role in streamlining processes and maintaining financial integrity within the organization. 

This is your chance to step into a role where precision meets impact—and where your work keeps the entire business moving forward.

In this role, you will play a critical role in ensuring financial accuracy, timely disbursements, and strong internal controls. A key challenge, and opportunity, in this role is bringing structure and efficiency to high-volume, often decentralized purchasing and expense activity across the company. You’ll collaborate closely with employees at all levels, from department leads to individual contributors, to drive clarity, compliance, and accountability in spending. This role is ideal for someone looking to deepen and expand their expertise in operational finance, systems, and cross-functional collaboration.

What you'll do...

• Own the end-to-end AP cycle - invoice receipt, review, and triage, ensuring accurate coding, submitting for appropriate approval, and payment processing.

• Serve as the subject matter expert and main point of contact for all AP-related inquiries, both internal and external. Manage vendor communications with clarity and professionalism, resolving payment issues and maintaining positive relationships.

• Work cross-functionally with all departments to troubleshoot and resolve PO and invoice discrepancies.

• Ensure timely and accurate payments to vendors in accordance with company policies and contract terms.

• Regularly monitor the company’s AP aging report and statements provided by vendors and proactively resolve outstanding balances and discrepancies.

• Reconcile AP subledger to the general ledger and support month-end and year-end closing activities.

• Assist with the review and processing of employee reimbursement requests and corporate credit card expenses for accuracy, policy compliance, and proper documentation.

• Develop and maintain AP policies, procedures, and internal controls to ensure compliance and efficiency.

• Assist in audits by providing documentation and explanations related to AP transactions.

• Identify and implement process improvements and automation opportunities to enhance workflow and reduce errors.

• Maintain vendor records collaboratively with the Supply Chain team, including W-9s, banking information, and contact details.

• Accurately assess the application of sales tax on purchases and payments, in compliance with applicable state and local tax regulations, as well as assist the team in monthly accruals of use tax on out-of-state or untaxed purchases.

• Prepare and file 1099s and other regulatory reporting as needed.

Who you are...

• Bachelor’s degree in Accounting, Finance, or related field (or equivalent experience).

• 5+ years of progressive experience in Accounts Payable.

• Strong understanding of GAAP accounting principles and AP best practices.

• Proficiency with large ERP accounting systems, Oracle Fusion and Coupa a plus.

• Advanced Excel skills and comfort with data analysis.

• Exceptional attention to detail, organizational skills, and ability to manage multiple priorities.

• Excellent communication and interpersonal skills.

Twelve Benefits

• Medical, dental, and vision coverage

• Paid sick days and vacation

• Competitive salary and equity compensation commensurate with experience

• Diverse and inclusive work environment

At Twelve, it's important each employee is compensated competitively and fairly. In alignment with state legal requirements, Twelve conducts exhaustive research to understand compensation markets. A range for the included position is listed below. Be advised, actual offer details are determined by job category, job location, and candidate skill level.  United States Wage Range: $36.00/hr - $40.00/hr

Please note that some pay bands may have wide ranges of compensation to accommodate candidate's diverse sets of skill levels.

We believe that the unique contributions of each individual is the driver of our success. To make sure that our products and culture continue to incorporate everyone's perspectives and experience we never discriminate on the basis of race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status.

Want to work with us but don't see a current opening that fits your background? Submit a general application for Future Opportunities or email us at [email protected] for further inquiries.

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Twelve is committed to the full inclusion of all qualified applicants, and complies with federal and state disability laws.  As part of this commitment, Twelve will ensure that persons with disabilities are provided reasonable accommodations for the hiring process.  If reasonable accommodation is needed to participate in the job application or interview process, please contact our Talent team by email at [email protected].