Accounts Receivable Staff Accountant

Advancing water quality through innovative and reliable sensing solutions

For more than 50 years, Sensorex has been solving sensor problems for water professionals around the world.

Clean, safe water is critical to a sustainable future. Water flows through our environment, through our homes, and through our manufacturing facilities and utility networks. At every step, water professionals face unique analysis challenges.

• The environmental scientist measuring oxygen levels in critical habitats to protect endangered species or to provide safe recreation
• The water treatment plant operator monitoring pH and chlorine levels to ensure safe drinking water
• The process chemists making sure water quality is optimized for efficiency and then treated for safe discharge
• The laboratory researcher requiring the highest precision and accuracy as they develop the technologies of tomorrow

Sensorex uses our experience, commitment to excellence, and flexible design and manufacturing to make sure each user gets the right sensor. We specialize in the design and manufacture of pH electrodes, ORP electrodes, conductivity and TDS sensors, and other electrochemical and optical measurement technologies. We stand by the side of all those working to be good stewards of our water resources and look forward to helping with your water quality sensor needs.

Job Type: Regular / Permanent

Role Type:
Full time

The AR Staff Accountant is responsible for owning the full accounts receivable lifecycle while supporting month‑end close, payroll, sales and use tax compliance, and financial reporting activities. This role plays a key part in maintaining accurate customer accounts, ensuring timely collections, administering full‑scope payroll processing, and ensuring compliance with indirect tax requirements, while supporting strong internal controls within the accounting function.

As a secondary responsibility, the position provides limited backup support for basic financial system and desktop troubleshooting during planned absences, following documented procedures and coordinating with internal or external IT resources as needed. This aspect of the role is intended to ensure continuity of operations.

This role works closely with Sales, IT, and Customer Service, and is well‑suited for an accounting professional who values detail, ownership, and process discipline.

• Own the full accounts receivable lifecycle
  , including customer invoicing, cash application, credits, adjustments, collections, and maintenance of accurate customer account records
• Proactively monitor AR aging and follow up on past‑due balances
  , resolving billing discrepancies, short payments, unapplied cash, and customer disputes
• Partner with Sales and Customer Service on credit matters
  , account holds, customer taxability questions, and customer issue resolution
• Own and administer full sales and use tax compliance through Avalara Ava Tax
  , including taxability mapping, exemption certificate management, transaction review, reconciliations, and support of monthly and annual filings in coordination with external tax advisors
• Monitor sales and use tax accounts
  , prepare supporting schedules, and reconcile tax liabilities to the general ledger to ensure accurate reporting and compliance
• Own and execute end‑to‑end bi‑weekly payroll processing
  , including data validation, system processing, payroll journal entries, reconciliations, and review and approval of employee expense reports to support accurate financial reporting and compliance
• Support month‑end close activities by reconciling AR‑, payroll‑, and sales/use tax‑related accounts to the general ledger and preparing supporting schedules and documentation
• Assist with bank reconciliations
  , intercompany AR reconciliations, and audit support, including AR confirmations, sales tax support, and related schedules
• Prepare AR‑related reporting and analysis
  , including aging trends for management and month‑end reporting
• Maintain strong internal controls
  , process documentation, and audit support across AR, payroll, and sales & use tax functions
• Provide limited, ongoing helpdesk support for basic IT and system needs during…