As an Accounts Receivable Specialist, you'll manage the full billing and project setup lifecycle for Innovative Solutions — from invoice preparation and daily collection calls to project setup in Sage Intacct and Datto. You'll own the day-to-day AR operations across billing, reporting, and reconciliations, while supporting revenue and month-end close functions. Real ownership of critical financial processes, real impact on the organization.   What You’ll Do * Prepare invoice exports and ensure invoices are accurately generated and delivered * Run aging reports daily and make collection calls on outstanding receivables * Update the Senior Revenue Accountant and Director of Accounting daily on collections progress and escalate delinquent accounts as needed * Review the AR inbox and set up all projects in Sage Intacct and Datto * Manage project changes including updates to dates, active contracts, and other project parameters * Keep milestone dates updated based on communication from Project Managers * Run invoice, aging, and backlog reports daily to monitor financial health * Perform general ledger entries and customer reconciliations * Assist with accounting projects, audits, or other related tasks and responsibilities as assigned   How You'll Be Successful: * Impeccable attention to detail and enormously high standards for accuracy * Collaborative team player, highly coachable, and open to feedback * Highly adaptive and accepting of constant change * Eager to find efficient ways to improve processes and workflows Required Skills * Experience with Accounts Receivable required * Experience with accounting software (Sage Intacct) preferred * High degree of proficiency with Microsoft Excel (pivot tables, spreadsheets, VLOOKUPs, IF statements, etc.) Preferred  * Associate’s degree in accounting or a similar field * Prior collections experience * Exceptional problem-solving skills * Uncompromised integrity * Self-motivation, with strong drive and ambition