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.

• Lead the day‑to‑day billing operations, including oversight of AIA billing, time & materials invoices, service work orders, and contract billing workflows.
• Supervise and mentor billing team members, ensuring workload distribution, training, and development align with departmental goals.
• Review and approve customer invoices, supporting documentation (lien waivers, compliance forms), and ensure submission deadlines are met.
• Collaborate with project managers, service technicians, and dispatch teams to maintain billing accuracy and momentum.
• Manage billing through third‑party portals including Ariba, Coupa, Maximo, Textura and other customer platforms.
• Monitor AR aging reports and coordinate with the collections team to resolve outstanding balances.
• Oversee customer and job setup in COINS or similar ERP systems and ensure accurate contract and billing terms are applied.
• Generate and review monthly billing summaries, customer statements, and profitability reports.
• Serve as the primary point of contact for resolving escalated customer billing inquiries or disputes.
• Identify and implement process improvements for greater efficiency and accuracy in the billing cycle.
• 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.

• Supervise a team of approximately six project accountants and billers.

• 5+ years of billing or accounts receivable experience, with 2+ years in a supervisory or lead role
• Construction industry experience required.
• Proficient in AIA billings, lien waiver processes, and third‑party customer portals.
• Strong leadership, organizational, and communication skills.
• Experience with ERP systems e.g. COINS, Sage Intacct, or similar.
• High attention to detail, with the ability to meet deadlines in a fast‑paced environment.
• Intermediate to advanced proficiency in Microsoft Excel.
• Customer‑focused approach with problem‑solving skills and a positive, team‑first attitude.

• Comprehensive medical, dental, and vision insurance
• 401(k) with Safe Harbor and Profit Sharing
• Paid time off and holidays
• Tuition reimbursement
• Professional development opportunities