Billing Manager

Aston Carter; Chantilly (VA); On-site; USD 85,000 - 95,000; Full time

Benefits offered by this job

ESOP

Medical, Dental, Vision

401(k)

Paid time off

Tuition reimbursement

Store discounts

Job summary

Aston Carter is seeking an experienced Billing Manager to join its on-site accounting team in Chantilly, Virginia. The role focuses on leading a small billing team, managing the full billing cycle, and ensuring accurate, timely, and compliant invoicing while supporting project managers and leadership with clear financial information.

Responsibilities include project set-up in Unanet A/E, invoicing, WIP reporting, and collaboration with executives.

Qualifications

• Advanced Unanet A/E billing experience including project setup and full-cycle billing.
• Experience supervising a billing or accounting team.
• Proficient in project invoicing and WIP reporting in a professional services setting.
• Strong Excel skills for reporting and data management.
• Attention to detail in handling billing data and contracts.

Responsibilities

• Supervise a billing team of two accountants and an AR/collections staff.
• Manage full billing cycle from project set-up to invoicing and reporting.
• Set up new projects in Unanet A/E with budgets and billing terms.
• Generate and distribute pre-bills and WIP reports monthly.
• Process and post invoices per contract terms and client instructions.
• Prepare customized invoice formats and input invoices into client systems.
• Support collections and cash flow with guidance to AR staff.
• Provide training and guidance to billing staff and stakeholders.

Skills

Unanet A/E billing

Billing team leadership

Project invoicing

WIP reporting

Microsoft Excel

Attention to detail

multi-priority management

Strong communication

Deltek Vision to Unanet A/E transition

Tools

Unanet A/E

Deltek Vision

Microsoft Excel

Job description

Billing Manager

Job Description An established multi-disciplinary design firm in the Washington, DC area is seeking an experienced Billing Manager with strong Unanet A/E expertise to join its on-site accounting team in Chantilly, Virginia. This role oversees a small billing team, manages the full billing cycle, and plays a key role in project set-up, invoicing, and reporting. The Billing Manager ensures accurate, timely, and compliant billing while supporting project managers and executive leadership with clear financial information and guidance. Responsibilities

• - Supervise and lead a billing team consisting of two billing accountants and one accounts receivable/collections accountant, providing day-to-day oversight, support, and performance guidance.
• - Participate directly in the monthly billing process to ensure accurate and timely invoicing for all projects.
• - Set up new projects in Unanet A/E, including entering general information, establishing budgets, and configuring billing terms in alignment with contract requirements.
• - Save, organize, and maintain new project contracts, additional work authorizations, and other billing-related correspondence in the firms project contract database.
• - Generate draft invoices (pre-bills) and work-in-progress (WIP) reports on a monthly basis and distribute them to project managers for review and approval.
• - Process and post invoices based on pre-bill markups and instructions received from project managers, ensuring that all invoices align with contract billing terms.
• - Send finalized invoices to clients in accordance with contract-specific billing instructions and schedules.
• - Prepare special or customized invoice formats when requested by clients and input invoices into client vendor management systems as needed.
• - Process billing adjustments, including credits and rebills, and void or reissue invoices when necessary to correct errors or reflect revised terms.
• - Generate and distribute various post-billing reports for management to support financial analysis and decision-making.
• - Supervise and manage project close-out procedures once projects are completed, ensuring all billing and documentation are finalized.
• - Periodically update the project number database on the firms intranet to keep project information current and accurate.
• - Advise and assist the accounts receivable/collections accountant as needed to support effective collections and cash flow management.
• - Provide training, coaching, and guidance to billing and accounting staff to strengthen processes and maintain high-quality standards.
• - Execute ad hoc reports and perform special tasks as requested by the CFO and executive management.
• - Collaborate with project managers and internal stakeholders to manage multiple priorities and deadlines while maintaining a high level of accuracy and attention to detail.
• - Communicate clearly and professionally in both written and verbal form with internal teams and external clients regarding billing matters.

Essential Skills

• - Advanced experience with Unanet A/E billing, including project set-up, maintenance, and full-cycle billing processes.
• - Demonstrated experience managing or supervising a billing or accounting team, including responsibility for staff oversight and development.
• - Proficiency in project invoicing and work-in-progress (WIP) reporting within a professional services or similar industry environment.
• - Working knowledge of Microsoft Excel for reporting, analysis, and data management.
• - Strong attention to detail and accuracy in handling billing data, contracts, and financial documentation.
• - Ability to manage multiple priorities and deadlines in a fast-paced environment.
• - Strong written and oral communication skills for effective interaction with project managers, executives, staff, and clients.
• - Ability to work both independently and as a collaborative team player.
• - Experience participating in or supporting a transition from Deltek Vision to Unanet A/E (Deltek Vision billing experience considered a plus).

Additional Skills & Qualifications

• - Experience in a multi-disciplinary design, engineering, architecture, or related professional services firm.
• - Familiarity with client vendor management systems and the ability to input and manage invoices within those platforms.
• - Experience preparing customized or client-specific invoice formats.
• - Background in accounts receivable or collections support within a professional services environment.
• - Experience generating management and post-billing reports to support financial decision-making.
• - Prior involvement in process improvement or standardization of billing procedures.
• - Comfort working under the direction of executive leadership, including a CFO, and responding to ad hoc reporting requests.

Work Environment This position is fully on-site in Chantilly, Virginia, within an established multi-disciplinary design firm specializing in civil engineering, site planning, land surveying, and landscape architecture.

Job Type & Location

This is a Permanent position based out of Chantilly, VA.

Pay and Benefits

The pay range for this position is $85000.00 - $95000.00/yr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Offers medical, dental, vision, prescription coverage, financial savings, profit sharing, paid time off, family support like tuition reimbursement, and store discounts

Features an Employee Stock Ownership Plan (ESOP) alongside standard medical, dental, vision, 401(k), and paid time

Workplace Type

This is a fully onsite position in Chantilly,VA.

Application Deadline

This position is anticipated to close on Oct 12, 2026.

About Aston Carter

Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® Platinum Award winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email [e-mail] for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.