Billing Specialist

Job Description Onethe person, Inc. is seeking a Billing Specialist who will partner closely with project managers to prepare accurate construction billings, manage complex billing schedules, and maintain organized documentation for projects of varying size and complexity. This role focuses on AIA and GMP billing, customer payment processing, and reconciliation, while contributing to process improvements that enhance accuracy, efficiency, and internal controls within a dynamic, growth-oriented environment. Responsibilities + Work closely with project managers to generate accurate client billings for construction projects. + Prepare and review AIA billing documents to accurately reflect project progress, costs, and contractual terms. + Collaborate with project managers to establish and manage billing schedules and deadlines to ensure timely submission of payment applications. + Maintain organized records of all billing-related documents, including change orders, contracts, and lien waivers. + Communicate with clients, subcontractors, and project managers to resolve billing inquiries, discrepancies, and change requests. + Process customer payments in a timely and accurate manner. + Contact customers to discuss overdue payments and update account status based on agreed arrangements. + Locate customers using appropriate resources to address outstanding balances and billing issues. + Process payments and refunds in accordance with established accounting policies and procedures. + Call customers to resolve billing and credit issues and document outcomes appropriately. + Take proactive actions to encourage timely payments and reduce accounts receivable balances. + Lead or participate in cross-functional projects to streamline billing and collection processes and increase accuracy and efficiency. + Establish and enforce accounting policies and procedures related to billing and collections, ensuring proper internal controls exist. + Assist with special projects, billing and collection research, and ad hoc analysis as needed. Essential Skills + Minimum 3+ years of construction billing experience. + Minimum 2+ years of experience with customer reconciliation. + Minimum 2+ years of GMP (Guaranteed Maximum Price) billing experience. + Strong experience with billing, construction billing, invoicing, and accounts receivable. + Intermediate proficiency in Excel, including the ability to work with spreadsheets for billing and reconciliation. + Demonstrated ability to manage AIA billing preparation and review. + Proven experience communicating effectively with clients, subcontractors, and internal project teams. + Ability to establish and follow accounting policies and procedures and maintain strong internal controls. + Experience working in a high-paced team environment while managing multiple billing deadlines. Additional Skills & Qualifications + System experience with Coins or similar construction or accounting software; experience with K2A is a plus. + Associate's or Bachelor's degree in Accounting or a related field is preferred. + Experience with T&M (Time and Materials) billing. + Experience reviewing and interpreting contracts for billing purposes. Work Environment Onethe person, Inc. offers a professional, team-oriented environment that combines the stability, resources, and opportunities of a national mechanical contractor with the creative spirit and customer loyalty of a local business. The organization handles projects of all sizes and complexity, including stadiums, manufacturing facilities, power plants, hospitals, concert halls, and classrooms, from multiple regional locations across the country. The Billing Specialist can work 100% remotely, with the option for candidates local to Minnesota to spend some time at the St. Paul location if desired. The culture emphasizes flexibility, respect for life outside of work, and a supportive, non-micromanaging leadership style. Team members thrive on variety and new challenges, and the company provides substantial opportunities for professional growth and advancement within a high-paced, collaborative environment. Job Type & Location This is a Contract to Hire position based out of Saint Paul, MN. Pay and Benefits The pay range for this position is $32.00 - $35.00/hr. 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) Workplace Type This is a fully remote position. Application Deadline This position is anticipated to close on Aug 5, 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 View email address on click.appcast.io (%View email address on click.appcast.io) 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.