About Horwitz
At Horwitz, we’ve been delivering high-quality, forward-thinking mechanical solutions since 1918. With over a century of craftsmanship behind us, we are now one of the Twin Cities’ most trusted multi-trade specialty contractors. Our team is driven by a culture of trust, continuous improvement, and doing the right thing—for our clients, our partners, and our people.
As we continue to grow, we are seeking an Assistant Project Manager who is passionate about construction, thrives in a fast-paced environment, and brings a collaborative, solutions-focused mindset to every challenge.
Position Overview
As the Project Accountant Manager, you’ll oversee the billing operations for both construction and service divisions, ensuring invoices are accurate, timely, and aligned with customer expectations and contractual requirements. This role requires a balance of strategic oversight and hands-on execution, as well as cross-functional collaboration with project managers, technicians, and the finance team. You’ll lead billing initiatives, support collections processes, and drive continuous improvement within our billing systems and procedures.
Key Responsibilities
- 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 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, and other customer platforms.
- Monitor AR aging reports and coordinate with the collections team to resolve outstanding balances.
- Oversee customer 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.
What You Bring
- 5+ years of billing or accounts receivable experience, with 2+ years in a supervisory or lead role—construction industry experience highly preferred.
- Proficient in AIA billing, lien waiver processes, and third-party customer portals.
- Strong leadership, organizational, and communication skills.
- Experience with ERP systems (e.g., COINS, Vista by Viewpoint, 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.
Why Horwitz
At Horwitz, we invest in your growth and well-being. We offer a supportive, people-first culture, meaningful work, and opportunities for advancement in a company that’s innovating and evolving every day.
Benefits
- Comprehensive medical, dental, and vision insurance
- 401(k) with Safe Harbor and Profit Sharing
- Paid time off and holidays
- Tuition reimbursement
- Professional development opportunities
