Accounting Services Bookkeeper

Full-Service BookkeeperThe Full-Service Bookkeeper is responsible for maintaining accurate and complete financial records across one or more entities within the Mainspring corporate structure. This role owns the day-to-day bookkeeping cycle — accounts payable, accounts receivable, bank and credit card reconciliations, payroll journal entry support, and general ledger maintenance — and works closely with the Senior Finance Executive and Controller to support month-end close, budget-to-actual reporting, and audit readiness. This is a hands-on role suited to someone who is detail-oriented, comfortable working across multiple entities and cost centers, and experienced with QuickBooks Online in a multi-site or healthcare environment.Key ResponsibilitiesMaintain accurate, up-to-date books in QuickBooks Online for one or more Mainspring entities, including timely coding and posting of transactions to the correct entity, class, and location.Process accounts payable end-to-end: enter and code vendor bills, verify approvals, schedule/process payments, and maintain organized vendor and W-9 files.Manage accounts receivable, including invoicing, cash application, and follow-up on outstanding balances as applicable.Perform monthly bank, credit card, and balance sheet account reconciliations, researching and resolving discrepancies promptly.Record payroll journal entries and support reconciliation of payroll register data (Rippling/Paycom) to the general ledger, including accruals across pay periods.Distinguish and properly allocate corporate/shared costs versus true facility-level vendor spend across entities (e.g., legal, consulting, insurance, and other shared expenses).Support month-end and year-end close processes, including journal entries, account analysis, and preparation of supporting schedules.Assist with budget-to-actual reporting by compiling and organizing monthly data from facility-level workbooks.Maintain organized, audit-ready documentation and support responses to auditor and lender inquiries as needed.Identify and escalate discrepancies, unusual variances, or process gaps to the Senior Finance Executive or Controller.Assist with ad hoc financial reporting, vendor setup, and special projects as assigned.Education / CredentialsAssociate's or Bachelor's degree in Accounting, Finance, or a related field preferred; ExperienceThree to six years of progressive accounting experience, preferably in healthcare multi-entity environments, or private equity-backed companies.Knowledge / Skills3+ years of full-cycle bookkeeping or staff accounting experience, ideally in a multi-entity, multi-location, or healthcare/behavioral health environment.Strong working knowledge of QuickBooks Online required; Proficiency in Microsoft Excel (pivot tables, basic formula-building at minimum).Familiarity with AI (Claude) a plusExperience with payroll/HRIS platforms such as Rippling or Paycom, or willingness to learn, preferred.Understanding of GAAP-basis bookkeeping fundamentals and month-end close procedures.Strong written and verbal communication skills, with the ability to work directly with facility staff, vendors, and finance leadership.Discretion in handling confidential financial and patient-adjacent business information, consistent with healthcare industry standards.Exposure to multi-state payroll tax considerations.Familiarity with intercompany accounting and management fee/allocation structures.Working ConditionsThis role is based out of the Pikesville, MD corporate office and supports facilities operating in other states. Why This Role MattersAs Mainspring Recovery expands, this role safeguards the organization's financial accuracy, compliance, and operational stability.The Full-Service Bookkeeper's work directly enables strategic growth while protecting the resources that fuel our mission to deliver exceptional substance use disorder treatment.Pre-Employment RequirementsMainspring conducts, as required, job-related background checks, drug testing, TB testing, verification of employment history, and/or reference checks prior to employment.Employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other protected status in accordance with applicable federal, state, and local laws.