AR & Billing Manager

At Horwitz, we don’t just offer jobs—we build careers. For over 100 years, we’ve been a leader in HVAC, plumbing, 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. Along with competitive benefits—you’ll be part of a company that values its employees and makes a positive impact in the community. Join Horwitz and become part of a legacy of excellence and opportunity.

Position Overview:
The Accounts Receivable/Billing Manager will oversee the billing operations for both the construction and service divisions. This position will lead a team of project accountants and billers, keep complex contract billing moving, and partner with project managers, service teams, customers, and Finance to resolve issues before they delay payment. This role is a strong fit for a construction-billing leader who enjoys developing people, improving processes, and staying close to the details.

Key Responsibilities:

These responsibilities generally describe the nature of the position and may not be all inclusive

• 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, so 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

• Get better every day

Skills and Abilities:

• 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

Education and Experience:

• 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