About the Role

645 Ventures is seeking an Assistant Controller. In this role, you will oversee management company financial operations, fund financial reporting, and firm compliance while working closely with the VP of Finance on portfolio-related initiatives. We are looking for an individual who has a passion for operational finance and early-stage startups, paired with a strong financial reporting background. This individual will have demonstrated partnership and management company accounting experience, combined with an interest in FP&A/budgeting. You will work closely with the General Partners, VP of Finance, and existing team members across the organization.

We seek to hire people who are resourceful, collaborative, versatile, curious, hard-working, and always ready to pitch in. As a key member of our firm, you will contribute to 645’s high standard of excellence, outstanding quality of work, and strong operational oversight.

This is a full-time position. The Assistant Controller will work closely with the VP of Finance and General Partners to support the financial health and growth of the Firm.

Responsibilities may include, but are not limited to:

• Maintain detailed budget and performance analysis for the firm's management company, enabling leadership to make key spending decisions in areas such as hiring.
• Serve as lead point of contact for fund administrators.
• Review quarterly fund financial statements prepared by the fund administrator.
• Review annual tax workbooks and K-1s prepared by the fund’s tax preparer.
• Serve as lead point of contact for the firm’s third party audit and tax firms.
• Oversee billing and invoice management, ensuring accuracy and timeliness in processing invoices and payments.
• Monitor and manage expense management and reimbursement processes, ensuring compliance with company policies.
• Manage fund expense allocations accurately and efficiently.
• Oversee payroll processes, ensuring accuracy and compliance with regulatory requirements.
• Manage wiring of investments and act as audit control for disbursements.
• Use Foresight, 645’s portfolio management platform, to survey portfolio companies and gather company metrics for quarterly portfolio review. The Assistant Controller will leverage Foresight to assist with providing fund data for LP reporting and other portfolio-related data/analysis requests.
• Work with external counsel to implement firm compliance procedures that are appropriate for an Exempt Reporting Adviser (ERA).
• Serve as lead point of contact for finance requests from Limited Partners.
• Any other duties as assigned by General Partners/senior management.

Skills and Experience Requirements:

• Bachelor's degree in Accounting, Finance, or a related analytical field. CPA is preferred.
• Minimum of 7 years of experience in financial reporting or tax roles with a strong interest in FP&A and budgeting.
• From a VC/PE fund, may be open to public accounting tax background.
• Advanced accounting/financial modeling skills to make accurate calculations, estimates, and forecasts (with a strong attention to detail).
• Familiarity with computing and analysis of investment returns, particularly TVPI, IRR, and DPI.
• Experienced in financing reporting, partnership taxation, and management company operations.
• Proficiency in financial software and Microsoft Office Suite.
• Strong analytical and problem-solving skills.
• Ability to work independently, self-starter, collaborate effectively, and can run from beginning to end with robust projects.
• Very strong communication skills, both written and verbal. This includes the ability to communicate effectively with co-workers, management, and the firm’s stakeholders about the finances of the business and justify certain financial recommendations.

About 645 Ventures

At 645 Ventures, we help founders bring the invisible to life. With over $550 million in assets under management, our ten-year-old firm is expanding rapidly, backed by leading institutional investors, including the world's best university endowments, funds of funds, and pension funds.

Our goal is to back founders who aspire to build iconic businesses that transform industries and reach large scale M&A and IPO events. We are proud to have invested in several companies already advancing along that trajectory, including Goldbelly, Iterable, Overtime, Resident, Setpoint and Shift5. We have over 60 active companies in our portfolio and typically invest between $1 million - $15 million as lead investors or alongside other top-tier funds. Our portfolio spans enterprise SaaS, infrastructure software, and consumer technology.

We have built a team and culture that is inclusive, collaborative, and prioritizes a client-service mindset. 645 is deeply committed to diversity, equity, and inclusion—and our team and community reflect that commitment.