Billing Specialist

ACCOUNTS RECEIVABLE SPECIALIST MBD is seeking a highly organized, detail-driven Project Contracts & Billing Specialist to manage billing and collections across our construction projects, working closely with Project Managers and leadership. This role requires consistency, discretion, and a high standard of follow-through. This is a key internal position for someone who is comfortable working across departments, managing multiple priorities, and contributing to a company that values precision, accountability, and professionalism. We're looking for a long-term fit, and our interview process is thorough as we work to ensure the right match for both sides. REQUIRED: 2+ YEARS OF CONSTRUCTION AR BILLING EXPERIENCE This is not a general accounting or AR role. Candidates must have direct, hands-on experience with construction billing, pay applications, AIA billing, retainage tracking, and lien waiver management. Candidates without construction industry AR experience will not be considered, regardless of general accounting background. What You'll Own From project setup through final closeout, you will maintain the financial integrity of each job by ensuring billing and collections are accurate, timely, and aligned with project realities. Billing + Revenue Management Prepare and submit monthly progress billings and pay applications, ensuring accuracy and on-time submission Track billing status, aging, cash flow, and collections across active projects Manage retainage tracking and release Track lien waivers and compliance documentation, ensuring conditional/unconditional waivers are collected and filed correctly Partner closely with Project Managers to support financial visibility and alignment throughout the project lifecycle Maintain accurate job cost and AR reporting, ensuring financial data integrity across systems Help identify budget variances, missing cost exposure, and reporting inconsistencies Support audit requests with accurate documentation and clear explanations Subcontractor + Vendor Compliance Ensure proper documentation is in place, including insurance certificates, lien releases, and related compliance items What It Takes Required: Minimum 2 years of experience specifically in construction accounts receivable - construction industry experience is non-negotiable Strong Microsoft Office skills, especially Excel Proficiency in accounting and ERP systems; QuickBooks Desktop required, with Innergy, Procore, GC Pay, Textura, or similar construction billing platforms considered a plus Strong analytical and problem-solving skills, with a high level of accuracy and attention to detail Ability to manage multiple priorities and deadlines across active projects Clear communication skills and the ability to partner effectively with Project Managers, leadership, internal teams and our customers Strong organizational discipline and the ability to maintain accurate, audit-ready records Comfort working in a fast-paced, detail-driven environment What We Offer Competitive Base Pay (DOE) Performance Pay (Variable compensation tied to business results) Benefits Package - Medical, Dental, Vision, Life, 401(k), paid holidays, sick time, vacation Schedule - Full Time, non-exempt Location - Office in Newbury Park, CA - Monday through Friday Start Date - Immediate How You'll Grow This role is designed to grow with the company. As Millworks by Design evolves, you'll have the opportunity to strengthen billing systems, improve collections processes, and play a meaningful role in building a more disciplined, data-driven operation. Who We Are Millworks by Design is a specialty trade contractor focused on high-end millwork and finish carpentry for premier residential and select commercial projects. We are known for disciplined execution, strong internal standards, and a team of skilled professionals across the field and office. Millworks By Design is an equal opportunity employer that values diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. #J-18808-Ljbffr