Accounts Receivable / Collections Specialist

Accounts Receivable / Collections SpecialistKORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for an Accounts Receivable / Collections Specialist in Lake Forrest, CA. This position is fully onsite during training and then can be hybrid with 1-2 days remote per week.Position SummaryThe Accounts Receivable / Collections Specialist is responsible for managing high-volume customer billing and collections in a fast-paced, heavy civil construction environment. This role plays a critical part in driving cash flow across a $100M+ operation by ensuring timely invoicing, proactive collections, and resolution of complex billing issues in coordination with Project Managers and customers.Key ResponsibilitiesGenerate and manage high-volume billing in accordance with contract terms, including progress billing, unit price, and T&M work. Own the collections process for assigned accounts, including consistent follow-up on past due balances. Monitor and manage AR aging across multiple projects and customers, escalating issues as needed. Partner with Project Managers to resolve billing discrepancies, change orders, and disputes. Prepare and manage preliminary notices, lien rights, and waiver documentation in compliance with lien law requirements. Track critical deadlines related to lien filings and collections actions. Apply payments and reconcile accounts in Sage 100 Contractor. Maintain detailed documentation of customer communications and collection efforts. Support month-end close, including AR reporting and reconciliation. Identify and drive improvements in billing and collections processes.Qualifications5+ years of AR and collections experience in construction or heavy civil contracting. Proven ability to manage large volumes of invoices and receivables. Strong knowledge of construction billing cycles (progress billing, unit price, T&M). Working knowledge of lien laws, preliminary notices, and waiver processes. Experience using Sage 100 Contractor (or similar construction accounting systems). Ability to work cross-functionally with Project Managers and operations teams. Strong communication, follow-up, and negotiation skills. Highly organized with the ability to prioritize in a fast-paced environment.Preferred ExperienceBackground in asphalt paving, roadway, or heavy civil construction. Experience with public works and contract compliance requirements. Familiarity with job cost structures and project-level financial tracking.Key Traits for SuccessPersistent and proactive in collections. Comfortable operating in a high-volume, deadline-driven environment. Strong problem-solving skills and attention to detail. Ability to hold others accountable while maintaining professional relationships. Kore1