Assistant Controller
Flow
Job Summary
Flow is seeking a sharp, hands-on Assistant Controller to join their fast-growing Accounting team. Reporting to the Corporate Controller, the role is crucial in scaling the controllership function, ensuring accuracy, compliance, and operational excellence. Key responsibilities include leading the month-end close process, preparing account reconciliations and journal entries, developing and maintaining accounting policies and procedures, drafting technical accounting memos, supporting reporting integrity, managing financial system dimensions in the ERP, enhancing internal controls, and assisting with external audits. The ideal candidate thrives in a high-growth environment and contributes to building a world-class accounting organization.
Must Have
- Bachelor's degree in Accounting
- 8-10 years of relevant experience
- Solid foundation in US GAAP
- Experience preparing/reviewing financial statements
- Strong leadership and interpersonal skills
- Excellent attention to detail and organization
- Strong written and verbal communication
- Experience with multiple legal entities
- Advanced Excel skills
- Experience with modern ERP system
Good to Have
- Public accounting and in-house experience
- IFRS experience
- Python and SQL exposure
- CPA certification
- Sage Intacct experience
Perks & Benefits
- Comprehensive benefits package (Medical, Dental, Vision, Disability, Life)
- Paid time off and 13 paid holidays
- 401(k) retirement plan
- Healthcare and Dependent Care Flexible Spending Accounts (FSAs)
- Access to HSA-compatible plans
- Pre-tax commuter benefits
- Employee Assistance Program (EAP)
- Free therapy through SpringHealth
- Acupuncture and other wellness offerings
Job Description
What You’ll Do
- Lead the month-end close process, including preparation of account reconciliations, journal entries, and internal management reports
- Partner with the Corporate Controller to develop and maintain accounting policies, procedures, and documentation that scale with the business
- Draft GAAP-compliant technical accounting memos that clearly communicate complex concepts and their operational impact
- Support reporting integrity by working with FP&A to ensure records align with key business dimensions (e.g., departments, vendors, business units)
- Manage and maintain financial system dimensions and reporting structures in our ERP (Sage Intacct experience is a plus)
- Help enhance and implement internal controls for both existing and evolving processes
- Support external audits by organizing requests, managing timelines, and offering clear documentation and commentary
- Pitch in on team development, cross-functional initiatives, and special projects as needed
What You Bring
- Bachelor's degree in Accounting, with 8–10 years of relevant experience (a mix of public accounting and in-house experience preferred)
- Solid foundation in US GAAP (IFRS experience a plus) and experience preparing or reviewing financial statements
- Strong leadership and interpersonal skills—you know how to collaborate, influence, and bring clarity to complex topics
- Excellent attention to detail, organizational skills, and communication (both written and verbal)
- Experience working across multiple legal entities and ownership structures
- Advanced Excel skills, with bonus points for Python and SQL exposure
- CPA strongly preferred, but not required
- Experience with a modern ERP system—Sage Intacct or similar preferred
Why You’ll Love Working Here
- You’ll join a team that values precision, pragmatism, and partnership. We take pride in getting the details right, moving fast without cutting corners, and building systems that last. You’ll have a voice, real ownership, and a chance to shape how accounting supports our continued growth.