Billing and Collections Specialist

Keystone is a premier economics, technology, and strategy consulting firm built to help companies lead through transformation. As breakthrough innovations reshape industries, redefine competition and change our society, complex and highly competitive ecosystems emerge. Keystone advises technology leaders, Fortune 100 companies, their legal counsel, and governments on business, economic, litigation, and regulatory strategy in relation to these innovations and competitive eco-systems.

We operate globally from offices in New York City, Boston, San Francisco, Seattle, London, Dubai, and Washington, D.C.

This position is a key member of the Finance team, serving as the bridge between Billing Operations, Finance, Technology, and Project Leadership within a growing global consultancy that bills client engagements on both Time & Materials (T&M) and fixed-fee bases. The role oversees the end-to-end billing process for both contract types, ensuring accurate and timely invoicing, effective accounts receivable management, and compliance with client requirements, while driving process improvements, reporting, and automation to support the firm’s growth, including its expansion into new global offices in Singapore and Canada.

Reports to: Billing Manager

Location: Boston, MA. This role requires in-office presence three days per week.

We are not able to provide relocation support for this position.

We value talent from all backgrounds; however, for this position, we are unable to sponsor employment visas. We welcome applications from individuals who are already authorized to work in the United States without sponsorship.

• Own the firm's collections process - proactively following up on outstanding invoices, resolving payment obstacles with clients, law firms, and external billing services, and using billing technology and automation to accelerate collections and reduce days sales outstanding (DSO).

• Deliver clear, transparent reporting on receivables, collections status, and outstanding balances to firm leadership and client-facing teams, alongside broader billing, accounts receivable, client, and management reporting and client budget tracking.

• Review, submit, and monitor monthly invoices - including LEDES and electronic billing submissions - for Time & Materials and fixed-fee engagements, preparing supporting documentation, securing invoice approvals, and promptly resolving rejections, reductions, and other billing issues.

• Update matter and timekeeper rates and maintain accurate billing information, client billing guidelines and agreements in applicable systems.

• Manage billing appeals and disputes, researching issues and coordinating with internal stakeholders and clients to resolve them.

• Support billing operations for the firm's global offices, including multi-currency invoicing, foreign client billing requirements, and compliance with local regulatory and tax requirements.

• Identify opportunities to improve billing workflows, automate processes, and increase operational efficiency, serving as a key resource for billing systems and technology initiatives and a key contributor to the firm's billing automation agenda across the global firm.

• Collaborate with the Accounting team to ensure accuracy and efficiency across billing and accounts receivable processes, and support special projects and ad hoc requests from firm management.

• Experience in billing, accounting, accounts receivable, or related financial operations; billing experience within a law firm is strongly preferred.

• Demonstrated collections experience is required, with a track record of resolving past-due balances and reducing outstanding accounts receivable.

• Understanding of legal matter management, client billing…