Accounts Receivable Specialist

Job Title: Accounts Receivable Specialist
Department: Finance
Reports to: Accounting Manager
Location: Pullman, WA (on-site)
Pay Rate: $28.00 to $36.00 per hour (non-exempt, hourly)

Applicants must be legally authorized to work in the United States. Addium, Inc. does not sponsor employment visas now or in the future. 

About Addium
Addium is a leading ag-tech company uniting science, sensors, and software to deliver end-to- end solutions in agriculture and food safety. Serving 34,000+ global clients with 60M+ daily sensor readings, we turn raw data into actionable insights that conserve resources, improve food safety, and drive measurable impact. Our mission is to make the invisible visible—transforming data into clarity, action, and automation. Trusted by partners like Mondelez, PepsiCo, Ferrero, and Green Thumb Industries, we stand for innovation, reliability, and a bold commitment to the future of agriculture.

Key Responsibilities

Billing & Invoicing

• Oversee automated billing operations across customer portals, email, and mail; investigate and resolve exceptions, system errors, or process breakdowns.
• Maintain customer master data and billing instructions; ensure accuracy across NetSuite, Salesforce, and customer payment portals.
• Manage credit memos, billing adjustments, and rebilling activities with appropriate approval workflows.
• Maintain documented billing cycles and SOPs to ensure consistency across the AR function.

Cash Application & AR Reconciliation

• Manage AI agents and automated workflows to ensure proper cash application across customer accounts; investigate and resolve exceptions promptly.
• Reconcile the AR subledger to the GL monthly; investigate and resolve unapplied cash, short-pays, and other variances.
• Prepare and submit bank deposits; maintain supporting documentation for cash handling and audit support.

Customer Account Management & Coordination

• Serve as the primary AR point of contact for customer billing inquiries; respond to questions promptly and professionally.
• Partner with Sales, Customer Success, and Finance to resolve account discrepancies, billing disputes, and customer-facing concerns.
• Coordinate with collections (internal or third-party agency) on past-due accounts; ensure clean handoff with documented account history.
• Support customer onboarding from a billing-setup standpoint; coordinate with the Subscription Manager on subscription-related billing.

Reporting, Controls & Process Improvement

• Maintain AR aging reports and provide regular updates to Finance leadership.
• Support month-end close deliverables for AR, including reconciliations, accruals, and required reporting.
• Support external audit requests and PBC schedules related to AR and customer accounts.
• Identify opportunities to automate manual AR workflows; partner with Accounting on AI-enabled improvements where appropriate.

Skills & Qualifications

• 4+ years of progressive accounts receivable experience in a corporate or SaaS Environment.
• Strong working knowledge of accounting principles, including AR, cash application, and subledger reconciliation.
• Demonstrated ability to manage high-volume billing cycles with strong attention to accuracy and documentation.
• Working proficiency in Excel and Google Workspace, with advanced Excel skills (advanced functions, pivot tables, data manipulation).
• Excellent phone-based and written communication skills. This role is Addium's first line of customer contact on AR matters, so verbal communication is essential.
• High school diploma or equivalent.

Preferred Skills & Qualifications

• Associate or bachelors degree in Accounting, Finance, or Business.
• Conversational Spanish in addition to strong English.
• Familiarity with Dialpad or a comparable cloud phone system.
• Hands-on experience with NetSuite (especially AR and billing modules), Salesforce, and Stripe for customer account management.
• Demonstrated ownership of the AR function at a growth-stage or SaaS company.
• Experience managing a book of 500 or more active customer accounts.
• Prior responsibility for presenting monthly aging review to Finance leadership.
• Experience supporting external audit requests and month-end close cycles.
• Background in B2B billing or SaaS / recurring revenue environments.
• Comfort using AI / LLM-based tools to accelerate analytical and operational workflows.

Key Competencies

• Detail-oriented with strong organizational discipline.
• Professional communicator with customers and internal teams.
• Comfortable owning a high-volume process end-to-end.
• Pragmatic about process improvement and automation.
• Reliable execution on recurring deliverables across billing cycles.

Addium, Inc. is an Equal Opportunity Employer. We are committed to creating an inclusive and diverse workplace where all individuals are respected, valued, and supported. All qualified applicants are considered regardless of ethnicity, nationality, gender, veteran or disability status, religion, age, sexual orientation or gender identity, or other protected status.