AR & Billing Manager

About the role

At Horwitz, we don’t just offer jobs—we build careers. For over 100 years, we’ve been a leader in HVAC, plumbing, and electrical services, delivering exceptional service while fostering a supportive and innovative workplace. Joining our team means working with passionate professionals in a culture built on safety, accountability, professionalism, motivation, curiosity, and a can‑do attitude. We’re committed to your growth with training, mentorship, and advancement opportunities, and we offer competitive benefits.

The Accounts Receivable/Billing Manager will oversee the billing operations for both the construction and service divisions. This position leads a team of project accountants and billers, keeps complex contract billing moving, and partners with project managers, service teams, customers, and Finance to resolve issues before they delay payment. The role is ideal for a construction‑billing leader who enjoys developing people, improving processes, and staying close to the details.

Responsibilities

• Lead the day‑to‑day billing across AIA progress billing, time & materials invoices, service work orders, and contract billing workflows.
• Supervise, coach, and develop approximately seven project accountants and billers; balance workloads, establish priorities, and maintain clear standards.
• Review and approve invoices and required support, including lien waivers and compliance documentation, ensuring submissions are complete and on time.
• Partner with project managers, service technicians, dispatch, and Finance to confirm billable work, contract terms, change orders, and customer requirements.
• Oversee customer and job setup in COINS or a comparable construction ERP, including contract values, billing terms, and required documentation.
• Manage invoice submission through customer portals such as Ariba, Coupa, Maximo, and Textura, and resolve portal or documentation rejections.
• Monitor accounts receivable aging and work with the collections team and operational leaders to remove billing‑related barriers to payment.
• Review monthly billing summaries, customer statements, and relevant profitability reporting; explain exceptions and follow through on corrective action.
• Own escalated billing questions and disputes, communicating clearly with customers and internal partners through resolution.
• Improve billing controls, documentation, training, and workflows to increase accuracy, visibility, and cycle speed.
• Perform other duties as assigned.
• Conduct yourself in accordance with Horwitz core values: Safe, Accountable, Professional, Motivated, Can Do, and Curious.

Skills

• Strong leadership, organizational, and communication skills.
• High attention to detail with the ability to meet deadlines in a fast‑paced environment.
• Customer‑focused approach with problem‑solving skills and a positive, team‑first attitude.

Qualifications

• 5 years of billing or accounts receivable experience, including two or more years leading or supervising others.
• Construction industry experience required.
• Proficient in AIA billings, lien waiver processes, and third‑party customer portals.
• Experience with ERP systems (e.g., COINS, Sage Intacct, or similar).
• Intermediate to advanced proficiency in Microsoft Excel.