MSP Controller: Revenue, Billing & Financial Close

ASG Information Technologies; Wallingford (CT); On-site; USD 110,000 - 140,000; Full time

Job summary

ASG Information Technologies is seeking a Controller to own financial operations, including reporting, billing, payroll, and vendor management. The role emphasizes revenue integrity in a fast-moving MSP environment and requires strong accounting fundamentals and attention to detail across subscription-based billing for a diverse client base.

The ideal candidate will lead monthly closes, maintain GL integrity, coordinate budgeting, and serve as the liaison with external accountants, while

Qualifications

• 5+ years of progressive accounting or finance experience, with at least 2 years in a Controller or senior accounting role.
• Experience in an MSP, managed services, or subscription-based services business strongly preferred.
• Proficiency in QuickBooks or comparable accounting software.
• Familiarity with ConnectWise or comparable PSA platform for billing and invoicing preferred.
• Experience managing subscription or license reconciliation across multiple vendors and clients.
• Strong attention to detail with the ability to manage multiple concurrent deadlines.
• Comfortable working directly with senior leadership and external accountants.

Responsibilities

• Own the monthly close process. Produce accurate P&L, balance sheet, and cash flow statements on a consistent cadence.
• Prepare and distribute the monthly financial reporting package for leadership.
• Track budget vs. actual performance by department and surface variances with explanations.
• Lead the annual budgeting process in partnership with the COO and CEO.
• Maintain chart of accounts and general ledger integrity.
• Serve as the primary liaison with the external CPA firm for tax preparation, compliance filings, and audit support.
• Own the reconciliation between what ASG purchases from vendors on behalf of clients and what those clients are invoiced.
• Identify and resolve billing gaps where services have been provisioned but not invoiced, or where client billing does not reflect current usage or seat counts.
• Work with vCIO, TAM, and technical teams to ensure that subscription changes flow accurately and promptly into client billing.
• Maintain per-client cost and margin visibility by tracking vendor spend against client revenue.
• Manage vendor portals to monitor active subscriptions, license counts, and billing statements.
• Produce a recurring reconciliation report that surfaces any discrepancies between vendor costs and client charges.
• Oversee the monthly billing cycle in ConnectWise, ensuring invoices are accurate, complete, and sent on time.
• Review invoices for MRR accuracy before they go to clients, catching errors before they affect the client relationship.
• Manage AR aging. Follow up on outstanding balances, elevate as needed, and maintain collections discipline.
• Track and report on MRR, ARR, and revenue trends for leadership visibility.
• Partner with Sales and vCIO on new client onboarding to ensure billing is set up correctly from day one.
• Process vendor invoices and payments accurately and on schedule.
• Manage expense reporting and reimbursement processes.
• Maintain vendor records and track contract terms, payment schedules, and renewal dates.
• Identify opportunities to improve vendor payment terms or reduce unnecessary spend.
• Process payroll accurately and on schedule for all employees.
• Reconcile benefits invoices against enrolled employees each month.
• Maintain accurate compensation records and support any compensation planning or benchmarking exercises.
• Coordinate with HR on onboarding and offboarding as it relates to payroll, benefits, and final pay.

Skills

Accounting

Finance

Leadership

Month-end close

Revenue integrity

Tools

QuickBooks

ConnectWise

Job description

ASG Information Technologies is seeking a Controller to own financial operations, including reporting, billing, payroll, and vendor management. The role emphasizes revenue integrity in a fast-moving MSP environment and requires strong accounting fundamentals and attention to detail across subscription-based billing for a diverse client base.

The ideal candidate will lead monthly closes, maintain GL integrity, coordinate budgeting, and serve as the liaison with external accountants, while