Senior Accountant; Platform Accounting , NY

At Gusto, we're on a mission to grow the small business economy. We handle the hard stuff—like payroll, health insurance, 401(k) s, and HR—so owners can focus on their craft and customers. With teams in Denver, San Francisco, and New York, we’re proud to support more than 400,000 small businesses across the country, and we’re building a workplace that represents and celebrates the customers we serve.

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The Platform Accounting team is responsible for cash management, reconciliation and accounting for daily platform customer cash activity, fees and transaction losses processing s role has a combination of platform accounting, data analysis and reconciliation system tasks and responsibilities. In this role, the successful candidate will be responsible for ensuring successful implementation of new payment partner integrations and product changes impacting the customer cash reconciliation cycle and platform accounting.

This role will participate in monthly accounting close, work directly with payments operations, EPD and payments project managers to support global and cross functional initiatives.

Success in this role is defined by a consistent track record of accomplishing tight deadlines and effectively supporting large cross‑functional stakeholders to ensure successful communication, collaboration and implementations.

• You’re an accountant by trade and also passionate about Fintech and data‑driven solutions!
• You’re comfortable in a scrappy, fast‑paced environment and feel confident standing up brand new processes.
• You don’t shy away from complex or ambiguous problems and are enthusiastic about establishing best practices across the organization.
• You are very analytical. You can investigate variances, identify trends, and surface errors/anomalies in large data sets.
• You are comfortable picking up new tools and deepening your Excel & SQL skills through self‑learning and on‑the‑job coaching.
• You have an AI‑friendly mindset and are excited to leverage approved AI and automation tools to improve accuracy, efficiency, and scalability within accounting workflows.

• Plan and perform monthly and quarterly close activities, including preparing journal entries, balance sheet reconciliations, variance analyses and analytical reviews.
• Collaborate with internal business partners such as Data Analytics, Product, Finance Systems, Treasury, Engineering to implement new integrations including bank accounts, processors, and products.
• Partner with FP&A lead to analyze actual results and support additional analytics when necessary.
• Collaborate with both internal and external partners to investigate and resolve cash‑impacting reporting discrepancies.
• Participate in building and owning reliable and scalable processes and controls for Gusto’s Payment Platform; mitigate finance and payments risks.
• Enhance operations and build new models such as accruals & payment reporting.
• Maintain & support internally built knowledge base in Atlassian Confluence to document business and process changes as they relate to new payment integrations or new processes.
• Partner with large group cross‑functional teams to support internal financial systems process improvements and automation.
• Use SQL to query large data sets and extract insights that impact Financial Reporting & Close.
• Support financial statement audits and other compliance initiatives (SOC1, Money transmitter licenses, etc).
• Assist in design, implement and execute efficient internal control procedures relating to Customer Money Movement and other Platform activities.
• Drive and manage key platform accounting projects that improve efficiency, accuracy, and compliance by leveraging approved AI and other automation tools.
• Work on other ad hoc projects within the finance organization, as required.

• B.S. or B.A. in Finance, Accounting, Business or related field of study.
• CA, CPA or close to getting these certifications.
• 4‑6 years of relevant accounting experience;
  Combination of public accounting (Big 4 strongly preferred, including 1+ years of relevant industry (Fin Tech,…