Billing & Costing Administrator

Job Title: Billing & Costing Administrator Job Description
The Billing & Costing Administrator supports the accounting function by performing job costing, billing, and data entry to maintain accurate financial records and ensure timely invoicing. This role suits a highly organized professional with strong attention to detail who thrives in a fast-paced environment and enjoys working closely with project teams and other departments.
Responsibilities
- Perform detailed job costing for projects, ensuring accurate allocation of labor, materials, and overhead expenses.
- Prepare and process customer billing in accordance with company policies, contract terms, and project timelines.
- Enter and maintain accurate data in accounting systems, including invoices, purchase orders, and job cost reports.
- Reconcile job cost reports regularly and assist with variance analysis to identify and resolve discrepancies.
- Collaborate with project managers and other departments to clarify information, resolve billing issues, and ensure accurate and timely invoicing.
- Assist with month-end closing activities, including preparation of reports and supporting documentation.
- Maintain organized and up-to-date financial records to support audits and compliance reviews.
- Use spreadsheets to track and analyze data, including creating and maintaining simple formulas as needed.
- Leverage large ERP systems to input, review, and manage financial and project-related data.
Essential Skills
- At least 5 years of administrative experience.
- At least 5 years of data entry experience.
- Proficiency in data entry with a high degree of accuracy and attention to detail.
- Strong organizational skills with the ability to manage multiple tasks and deadlines.
- Ability to multitask effectively in a fast-paced environment.
- Ability to navigate within spreadsheets and create simple formulas in Excel.
- Experience using a large ERP system such as SAP, Oracle, SAGE, Workday, Microsoft Dynamics, or NetSuite.
- Strong communication skills to work effectively with project managers and cross-functional teams.
Additional Skills & Qualifications
- Experience with job costing in a project-based environment.
- Experience with invoicing and billing processes.
- Familiarity with SAGE or similar accounting software.
- Exposure to or experience in the construction industry.
- Demonstrated ability to maintain organized records to support audits and compliance requirements.
Work Environment
This position is fully onsite, providing direct interaction with the accounting team and other departments. You will work in a professional office setting using large ERP systems such as SAP, Oracle, SAGE, Workday, Microsoft Dynamics, or NetSuite, along with Excel and other standard office software. The environment is fast-paced and deadline-driven, with a focus on accuracy, collaboration, and clear communication across project and accounting functions.
Job Type & Location
This is a Contract to Hire position based out of Allentown, PA.
Pay and Benefits
The pay range for this position is $25.00 - $30.00/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)
Job Type & Location
This is a Contract to Hire position based out of Allentown, PA.
Application Deadline
This position is anticipated to close on Nov 8, 2026.
Workplace Type
This is a fully onsite position in Allentown,PA.

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 [email protected] 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.