ABOUT US

Twin Rivers Plumbing is a commercial plumbing subcontractor signatory to UA Local 290 serving Oregon’s construction industry with quality work, clear communication, and a team-first mindset. As we grow and refine our internal systems, we’re looking for a Contract Administrator who can help bring structure, consistency, and attention to detail to our projects. If you thrive in fast-paced environments and take pride in clean processes and follow-through, we want to hear from you.

PREFERRED QUALIFICATIONS

• 3+ years experience in construction administration, contract management, or billing
• Familiarity with AIA billing, lien waivers, and change order processes
• Proficiency in Microsoft Excel and PDF editing
• Experience with project management or ERP systems a plus (e.g., Sage, Procore, or similar)

ABOUT THE ROLE

The Contract Administrator manages the execution, compliance, and billing components of commercial plumbing contracts. This includes reviewing terms, tracking documentation, initiating and following up on billing, managing change orders, and supporting project managers and field teams with consistent communication and document control.
This is a key role in our growing team, where your organization and accountability will help keep projects running smoothly and keep risk low.

RESPONSIBILITIES

• Review and execute contracts, subcontracts, and purchase orders
• Interpret and apply contract language to ensure scope, terms, and risk are clearly understood and enforced
• Analyze job cost details to ensure accuracy and consistency with contract values
• Identify potential errors, misallocations, or omissions in job setup, billing, and change orders
• Coordinate billing schedules and compliance requirements with project manager and foreman
• Prepare and submit project billings with backup documentation
• Track payment status, change orders, lien waivers, insurance certificates, and project documentation
• Set up and maintain project files, both physical and digital
• Assist with vendor and subcontractor documentation, including W-9s, COIs, and compliance records
• Support project closeout requirements and ensure all contract deliverables are met
• Work closely with project managers, estimators, and the Controller to ensure financial and contract integrity across all projects