Billing 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.
We are growing quickly and looking for an exceptional Billing Specialist to join our Finance & Operations team.
This role is critical to supporting accurate billing, timely invoicing, and reliable project financial data across Keystone’s active engagements. The Billing Specialist will work closely with the Senior Billing Specialist, Finance, Operations, project leads, and partners to support work-in-process management, revenue tracking, invoice preparation, and billing documentation as Keystone continues its next chapter of growth.
About the Billing Specialist Role
The Billing Specialist is a key member of the Finance & Operations team and supports the day-to-day execution of Keystone’s billing and project finance processes. This role will assist with work-in-process management, project financial tracking, revenue estimation support, invoice preparation, and billing record maintenance.
The Billing Specialist will work closely with the Sr. Billing Specialist and project teams to ensure time entry, billing data, invoice documentation, and project financial records are accurate and up to date. This role is well suited for someone who is detail-oriented, highly organized, comfortable working with financial information, and motivated to build a career in billing, revenue operations, or project finance within a professional services environment.
This is a hybrid role with a minimum in office requirement of 3 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.
Key Responsibilities
Work-in-Process Management & Project Support
Support monthly work-in-process (WIP) review and tracking across active projects
Monitor staff time entry compliance and follow up on missing or incomplete time entries
Assist with reviewing WIP balances to ensure project billing data is accurate and current
Support updates to project financial trackers, including revenue estimates, staffing updates, and delivery timelines
Flag potential billing delays, data inconsistencies, or missing project information to the Sr. Billing Specialist or Finance leadership
Maintain accurate project billing records and supporting documentation
Revenue Tracking & Forecasting Support
Assist with monthly revenue estimation processes across active engagements
Support the review of actual versus forecast by gathering and organizing relevant project data
Help ensure revenue estimates align with project terms, billing structures, and project milestones
Provide timely and accurate project financial information to support monthly close activities
Maintain organized records of forecast updates, billing assumptions, and project-level financial changes
Client Billing & Invoice Management
Prepare draft pro forma invoices in accordance with project terms and client requirements
Support project leads and partners during invoice review and approval processes
Ensure invoices accurately reflect approved pricing, scope of work, time entries, expenses, and billing terms
Manage invoice documentation, approvals, delivery tracking, and recordkeeping
Track invoice delivery and support confirmation of client receipt
Monitor accounts receivable status and assist with follow-ups on outstanding invoices
Maintain accurate and well-documented billing files across active and closed projects
Billing Operations & Process Support
Support consistent billing workflows across project setup, WIP review, invoice preparation, and billing documentation
Identify missing information, process gaps, or data inconsistencies and escalate as appropriate
Partner with Finance and Operations team members to improve billing accuracy and timeliness
Help maintain clean and organized billing records to support reporting, audit readiness, and internal review
Contribute to a collaborative, service-oriented Finance & Operations team environment
What You’ll Bring
Required
2+ years of billing, accounting, revenue operations, project finance, or related experience
Experience working in a professional services environment, such as consulting, law, accounting, or a similar client-service business preferred
Strong attention to detail and comfort working with financial data
Familiarity with project-based billing, time entry, invoicing, accounts receivable, or revenue tracking processes
Proficiency in Microsoft Excel for tracking, reconciliations, and reporting
Ability to manage multiple deadlines and maintain accurate records in a fast-paced environment
Strong written and verbal communication skills
Ability to work collaboratively with Finance, Operations, project leads, and senior stakeholders
Preferred
Experience supporting WIP management, client billing, or project financial tracking
Experience preparing pro-forma invoices or supporting invoice review processes
Exposure to revenue forecasting, project budgets, or monthly close support
Experience within management consulting, legal services, accounting, or another professional services billing environment
Bachelor’s degree in Accounting, Finance, Business Administration, or a related field preferred
What Sets You Apart
Highly organized with strong follow-through
Exceptional attention to detail and accuracy
Strong analytical and problem-solving skills
Service-oriented and collaborative approach
Comfortable working with project teams, partners, and finance stakeholders
Ability to manage confidential financial information with discretion
Proactive mindset and willingness to learn
Comfortable working in a fast-moving, growing organization
Why Join Us
Play an important role in supporting accurate billing, timely invoicing, and project financial visibility across Keystone
Gain exposure to project finance, revenue operations, client billing, and professional services financial processes
Work closely with Finance, Operations, project leads, partners, and the Senior Billing Specialist
Build a strong foundation for career growth in billing operations, revenue operations, or finance
Contribute to a growing Finance & Operations function as Keystone continues to scale
In addition to annual salary, we provide an annual discretionary bonus, 401k contribution, and competitive benefits package. Actual Compensation within the range will depend upon the level the individual is hired into based on their skills, experience, and qualifications.
Annual Salary Range $80,000 — $100,000 USD
At Keystone we believe diversity matters. At every level of our firm, we seek to advance and promote diversity, foster an inclusive culture, and ensure our colleagues have a deep sense of respect and belonging. If you are interested in growing your career with colleagues from varied backgrounds and cultures, consider Keystone.