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Posted on:April 27, 2026
Closed on:September 1, 2026

AR / AP Specialist at Rainmaker

Rainmaker is hiring a AR / AP Specialist in El Segundo, CA, US. On-site. Pay: USD 60k-80k/yr.

About Rainmaker

Rainmaker develops a modern cloud seeding system to address water scarcity and inclement weather. The company integrates radar validation, weather-resistant unmanned aircraft systems (UAS), numerical weather modeling, and sustainable seeding agents into a precipitation enhancement solution.

AR / AP Specialist job description

Rainmaker is pioneering a modern cloud seeding system to mitigate water scarcity and inclement weather. We develop and incorporate radar and satellite validation, weather-resistant UAS, weather modeling, and novel sensors and dispersions into an effective precipitation enhancement solution. 
 

The Role

Support the Accounting team across core Accounts Receivable and Accounts Payable functions, ensuring timely, accurate processing and strong financial controls.

Manage accounts payable processes, including invoice entry, vendor setup and maintenance, purchase order matching, payment preparation, data validation, and document management.

Support accounts receivable activities, including customer invoicing, cash application, customer account reconciliations, aging review, and follow-up on outstanding balances.

Research and resolve vendor and customer discrepancies, including billing issues, payment questions, short pays, credits, and account reconciliation variances.

Assist with month-end close activities related to AR and AP, including accrual support, account reconciliations, reporting, and transaction review.

Maintain accurate vendor and customer records, ensuring compliance with internal policies and documentation standards.

Compile AR/AP data and prepare recurring reports for Accounting and Finance leadership, including aging schedules, payment status reports, and reconciliation summaries.

Partner cross-functionally with Operations, Sales, Procurement, and Finance stakeholders to resolve issues and improve workflow efficiency.

Identify opportunities to streamline AR/AP processes, improve data quality, and strengthen internal controls.

Provide ad hoc support on special projects and high-priority tasks for the Accounting Manager.

Qualifications

Bachelor’s degree in Accounting, Finance, Business Administration, or related field preferred.

Prior experience in Accounts Payable, Accounts Receivable, bookkeeping, or general accounting preferred.

Strong attention to detail with a high degree of accuracy in transaction processing and reconciliations.

Ability to work independently, manage competing priorities, and meet deadlines in a fast-paced environment.

Strong communication and problem-solving skills, with the ability to work effectively with vendors, customers, and internal teams.

Proficient in Microsoft Office applications, especially Excel.

Experience with accounting or ERP systems preferred.

Apply now

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Applications closed
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