Posted Aug 12, 2026

Remote Accountant - Client Billing & Reconciliations

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Remote Accountant – Client Billing & Reconciliations Highmark Healthcare | 5-Month Contract | 100% Remote Sigma Systems Inc. is seeking an experienced Remote Accountant to support Highmark Healthcare. This is a non-traditional accounting position with a strong focus on client billing, accounts receivable, client-level reconciliations, funding settlements, and financial operations. Due to the governmental nature of the position, candidates must be U.S. Citizens. The position is initially a 5-month contract with the potential for full-time conversion if a permanent opportunity becomes available. Responsibilities • Manage end-to-end client billing processes, ensuring accuracy, timeliness, and compliance with contractual agreements. • Perform client-level billing reconciliations and funding settlements, researching and resolving discrepancies. • Monitor and support Accounts Receivable activities including invoicing, cash application, aging, collections follow-up, credits, rebills, and payment discrepancies. • Partner with clients and internal teams to investigate and resolve billing, funding, reconciliation, and settlement issues. • Maintain accurate financial records and ensure transactions are recorded in accordance with GAAP and company policies. • Prepare and analyze account reconciliations, identify variances, research root causes, and recommend corrective actions. • Support financial settlement activities and ensure client accounts are accurately reconciled. • Assist in developing and implementing accounting, billing, and reconciliation workflows within a growing or evolving function. • Identify opportunities to improve billing accuracy, reconciliation processes, operational efficiency, and scalability. • Collaborate cross-functionally with Finance, Operations, Billing, Treasury, and client-facing teams to maintain financial and data integrity. • Support audits by preparing documentation, reconciliations, reports, and explanations as needed. • Assist with banking, treasury, cash management, and other financial operations as required. Required Qualifications • Bachelor's degree in Accounting, Finance, or a related field. • 3–5+ years of relevant accounting, billing, Accounts Receivable, reconciliation, or financial operations experience. • Strong understanding of GAAP and financial reporting practices. • Experience working with billing, Accounts Receivable, account reconciliations, cash application, or financial settlements. • Ability to analyze financial data, identify discrepancies, research root causes, and resolve issues efficiently. • Experience developing or improving accounting and operational processes. • Experience with ERP/accounting platforms such as SAP, Oracle, NetSuite, PeopleSoft, or similar systems. • Advanced Microsoft Excel skills. • Strong attention to detail, organization, analytical ability, and problem-solving skills. • Ability to communicate effectively with clients and cross-functional internal teams. • Ability to manage multiple priorities in a fast-paced environment. • U.S. Citizenship required. Highly Preferred • Experience working for a healthcare payer, health plan, Third-Party Administrator (TPA), or similar healthcare financial environment. • Experience supporting self-funded/ASO healthcare clients. • Hands-on experience with client-level reconciliations and/or financial settlements. • Experience with client funding reconciliations, billing settlements, payer/client account reconciliation, or similar financial activities. • Experience with banking, treasury, cash management, or funding operations. What Makes This Role Different This is not primarily a traditional general ledger or month-end-close accounting position. The strongest candidates will combine solid accounting fundamentals with hands-on operational experience involving client billing, Accounts Receivable, reconciliations, funding/settlements, and resolution of financial discrepancies.