Project Billing/Service Specialist

Job Description

Job Description

Project Billing/Service Specialist

St. Louis, MO

Job Description

The Billing/Service Specialist manages accounts receivable and billing functions for multiple companies while providing dedicated support to the service department. This role ensures accurate and timely billing, maintains critical financial records, and contributes to smooth service operations in a busy environment with a sustained workload and significant project backlog. The position offers the opportunity to grow within an organization that values internal development and long-term career progression.

Responsibilities

• Process time and materials (T&M) and contract billings accurately and on schedule.
• Update and maintain billing deadlines and specific billing requirements for multiple projects and customers.
• Submit invoices and hours in multiple online systems, ensuring accuracy and adherence to client requirements.
• Perform invoice reconciliations to resolve discrepancies and maintain accurate accounts receivable records.
• Set up jobs, contracts, billing rate tables, and markup tables in the billing and ERP systems.
• Run, review, and distribute monthly reports related to billing, accounts receivable, and service activities.
• Process and log lien waivers in accordance with company procedures and project requirements.
• Process, review, and submit monthly and quarterly diversity payments as required by contracts.
• Update and maintain the Service Aging Report to monitor outstanding receivables and support collections efforts.
• Submit service invoices in multiple online systems, following customer-specific requirements and timelines.

Essential Skills

• High school diploma or equivalent.
• Background in accounts receivable and billing, preferably in a multi-entity or project-based environment.
• Comfort working in a legacy ERP environment and adapting to older processes during a transition period.
• Strong attention to detail and accuracy in all billing and accounts receivable activities.
• Solid math aptitude and confidence working with numerical and financial data.
• Good organizational and time-management skills to manage multiple deadlines and priorities.

Additional Skills & Qualifications

• Construction industry experience is preferred.
• Experience with AIA billing, including familiarity with AIA G702 and G703 forms, is highly desirable.
• Strong Excel skills, including the ability to work with spreadsheets, formulas, and data analysis.
• Experience with Sage 300 Construction and Real Estate (Timberline) is preferred.
• Process improvement mindset and willingness to identify and implement more efficient billing and accounting practices.
• Interest in long-term career growth within an organization that promotes from within.

Work Environment

This role is 100% onsite, working a regular schedule of 7:00 AM to 3:30 PM. You will work in an office environment as part of a collaborative accounting and administrative team that includes purchasing specialists, an accounts payable specialist, a payroll specialist, a billing specialist, and a service representative.

This is a Contract to Hire position based out of Saint Louis, MO.

The pay range for this position is $28.00 - $29.00/hr.

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.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Saint Louis,MO.

This position is anticipated to close on Sep 26, 2026.

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 View email address on ziprecruiter.com 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.