Senior Accountant

About Reserv Reserv is an insurtech creating and incubating cutting-edge AI and automation technology to bring efficiency and simplicity to claims. Founded by insurtech veterans with deep experience in SaaS and digital claims, Reserv is venture-backed by Bain Capital and Altai Ventures and began operations in May 2022. We are focused on automating highly manual tasks to tackle long-standing problems in claims and set a new standard for TPAs, insurance technology providers, and adjusters alike. We have ambitious (but attainable!) goals and need people who can work in an evolving environment. If building a leading TPA and the prospect of tackling the long-standing challenges of the claims role sounds exciting, we can't wait to meet you. About the role We are seeking an experienced Senior Accountant to join our growing team and take ownership of our financial operations across the U.S. and UK. This is a hands-on role ideal for someone who is eager to dive deep, drive process improvements, and maintain the highest standards of accounting practices. Reporting to the Controller, you'll manage all aspects of our accounting lifecycle — from daily transactions to month-end closes and annual financial reporting — while ensuring compliance, accuracy, and strategic financial insights for the business. What you'll do Manage Accounts Payable (AP) and Accounts Receivable (AR), including vendor invoices, collections, and customer account reconciliations Maintain the General Ledger with accurate journal entries, proper account coding, and regular reconciliations Execute daily bank reconciliations and cash management tasks Own the complete monthly close process, including accrual adjustments and variance analysis Prepare timely financial statements (P&L, Balance Sheet, Cash Flow) for internal management andstakeholders Lead quarterly and annual close processes, coordinating with auditors and ensuring audit-ready documentation year-round Manage multi-state sales tax reporting, filings, and registrations Ensure compliance with GAAP and internal financial controls, including payroll tax and corporate tax preparation support Work across QuickBooks and NetSuite to manage data integrity and system configurations Identify process bottlenecks and recommend automation or system improvements Partner with Sales, Operations, and FP&A teams to provide timely financial data and support business decisions Qualifications Bachelor's degree in Accounting, Finance, or a related field; CPA, CMA, or bookkeeping certification is a plus 5-7 years of hands-on, full-cycle accounting experience (AP, AR, GL, close, reporting) Proficiency in QuickBooks; experience with NetSuite, Ramp, or other cloud-based accounting systems preferred Proven experience in a technology, SaaS, or startup environment managing rapid growth and changing financial needs Hands-on experience using AI-driven tools to streamline accounting workflows, automate reconciliations, and enhance reporting accuracy Advanced proficiency in Excel (pivot tables, VLOOKUP, formulas, data analysis) Experience managing multi-entity or international accounting (U.S./UK operations) Excellent attention to detail with a strong commitment to accuracy and compliance Strong written and verbal communication skills Benefits Generous health-insurance package with nationwide coverage, vision, & dental 401(k) retirement plan with employer matching Competitive PTO policy – we want our employees fresh, healthy, happy, and energized! Generous family leave policy after 8 months of continuous work Work from anywhere to facilitate your work life balance Apple laptop, large second monitor, and other quality-of-life equipment you may want. Technology is something that should make your life easier, not harder! At Reserv, we value diversity in backgrounds, perspectives, and life experiences and believe that diversity in viewpoints and critical thinking drives innovation, first-principles thinking, and success. We welcome applicants from