To thrive as a Startup Controller, you need a solid background in accounting, financial reporting, and cash flow management, typically supported by a CPA or relevant degree. Experience with cloud-based accounting software such as QuickBooks Online, NetSuite, or Xero, as well as proficiency in Excel, is highly beneficial. Strong analytical thinking, adaptability, and clear communication are key soft skills that help navigate the fast-paced and dynamic startup environment. These skills are crucial for ensuring accurate financial oversight, supporting rapid growth, and facilitating sound decision-making for the organization.