Accounts Payable

About Base

Base is building the foundation of American power. The grid is the largest, most complex machine in the world. Yet it’s aging, struggling to keep up with today’s demand, and is unprepared for our electrified future.

Base is modernizing the grid as the first engineering-led, technology-driven power company. We’re deploying a nationwide network of distributed batteries that strengthens critical infrastructure and saves Americans money.

Our team of engineers, operators, creatives, technicians, and electricians design and deploy systems at speed. If you want to tackle the problem that will define this century and shape the future of American energy, now is the time. Join us.

About the Role

The Accounts Payable role at Base will support the development of our payables operation as we scale. AP owns the end-to-end payables process, ensuring the timely and accurate processing of invoices and payments, while maintaining strong vendor and internal partner relationships. In this role, you will be responsible for accurately coding invoices, reviewing and reconciling invoices, and ensuring our vendors are paid on time. This role will collaborate with external and internal stakeholders to resolve discrepancies, assist with compliance related work, and contribute to growth initiatives.

What You'll Do

• Own the Accounts Payable process, including invoice and payment processing, purchase order matching, and vendor relationships/communications.

• Develop and implement AP workflows and policies, in collaboration with others, to improve operational efficiencies and scalability. Drive process automation.

• Own AP system configurations, including management of users, approval flows, and data requirements.

• Process high volumes of invoices, ensuring data accuracy and attention to detail.

• Compare invoices to purchase orders, including products, units, pricing, payment terms, etc.; investigate and solve discrepancies.

• Ensure timely payment of vendor invoices.

• Establish and maintain positive relationships with vendors, and partner with vendor billing specialists to improve bill details and formatting as needed.

• Ensure compliance with federal, state, and local regulations, including Sales Tax and 1099 reporting.

• Conduct regular reviews of AP records, ensuring the accuracy and integrity of vendor, bill, and financial data.

• Perform general ledger coding, ensuring accuracy of financial data in regards to expenses, capitalized expenses, deposits, etc.

• Perform monthly reconciliation of AP, Vendor Deposits, Goods Received Not Billed.

• Assist on other operational functions within the general scope of this role.

What You'll Bring

• Bachelor’s degree in business, accounting, finance, or a related field.

• Prior experience in accounts payable, or a correlated field.

• Experience with Purchase Orders, including two- and three-way match concepts.

• Proficiency in accounting and payable softwares preferred (Ramp, Odoo, Coupa).

• Experience working with multi-entity operations, including intercompany transactions.

• Experience or desire to operate in a high-growth environment.

Our Values

We’re building a winning culture and we’re looking for people who are up for the challenge. Here’s what we expect from day one:

• In-Person Only: We work full-time in the office. No hybrid. No remote.

• Challenge the Status Quo: Question assumptions. Fix broken systems. Principles > rules.

• Move Fast: Focus on what matters, act quickly, and learn by doing.

• Give & Get Feedback: Be direct, be humble. Challenge ideas–including your own.

• Own the Outcome: Take full responsibility. Deliver results. No excuses.

• Act Like an Owner: Be resourceful, mindful of impact, and committed to the business.

• Be Decisive: Drive clarity. Make bold calls with imperfect info.

• Bring the Intensity: This is not a 9-to-5. We're building something hard which requires real commitment.