MWH is a leading water and wastewater treatment-focused general contractor in the US with a rich history dating back to the 19th century. Fueled by the mission of Building a Better World, our teams are rapidly growing across the nation.

As a company committed to our team's well-being and growth, we offer a supportive work environment, opportunities for advancement, and the chance to contribute to a mission that shapes the future. Your expertise and ambition are valued here.

The work we do matters. The critical systems infrastructure we build changes lives, betters communities, and improves ecosystems. If you're passionate about this, we want to hear from you!

About the Role

The Accounts Payable/Accounts Receivable/Cost Specialist supports the financial and cost management functions of heavy civil construction projects, with a primary focus on Accounts Payable (AP), Accounts Receivable (AR), and job cost controls. This role partners closely with project managers, project engineers, superintendents, and accounting to ensure accurate cost tracking, timely billing, and compliance with contract requirements.

The ideal candidate has a strong understanding of construction cost controls, progress billing, and AP/AR processes within large-scale infrastructure projects, including water and wastewater facilities.

This position will be on-site full-time to support company operations in Gresham, Oregon.

Key Responsibilities – Cost Controls

• Maintain accurate job cost records, ensuring costs are coded correctly and aligned with project budgets.
• Support project teams with cost forecasting, committed cost tracking, and variance analysis.
• assist with monthly cost reports, accruals, and project financial reviews.
• track and report on retention, change orders, and the impact on overall project performance.
• Collaborate with project managers and engineers to support proactive cost control measures.

Key Responsibilities – Accounts Payable (AP)

• Process and review vendor and subcontractor invoices for accuracy, proper approvals, and correct cost coding.
• Verify invoices against contracts, purchase orders, and field documentation.
• Coordinate resolution of invoice discrepancies with vendors, subcontractors, and project teams.
• Track payment status, retention, and lien waiver compliance.
• Maintain complete and organized AP documentation in accordance with company and project requirements.
• Support compliance with prevailing wage and public works requirements where applicable.

Key Responsibilities – Accounts Receivable (AR)

• Prepare and submit owner/client billings, including progress billings, pay applications, and backup documentation.
• Track receivables, aging, and follow up on outstanding payments.
• Assist with change order billing, retention tracking, and final project closeout billings.
• Apply payments accurately and support AR reconciliations.

Basic Qualifications

• High school diploma or equivalent required; associate’s or bachelor’s degree in accounting, finance, construction management, or related field preferred.
• 3+ years of experience in construction accounting, cost controls, or AP/AR roles within heavy civil or infrastructure environments.
• Strong understanding of construction cost controls, progress billing, retention, and change orders.
• Proficiency in Microsoft Excel and construction accounting/ERP systems (e.g., CMiC, Viewpoint, Sage, or similar).
• Strong analytical, organizational, and communication skills.

Preferred Qualifications

• Experience supporting public works, prevailing wage, or federally funded projects.
• Familiarity with water, wastewater, or heavy civil infrastructure projects.
• Experience working closely with field operations and project management teams

Benefits

• Group health & welfare benefits, including options for medical, dental, and vision
• 100% company-paid benefits including Employee Life Insurance & Accidental Death & Dismemberment (AD&D), Spouse and Dependent Life & AD&D, Short Term Disability (STD), Long Term Disability (LTD) (after 60-day waiting period for STD & LTD only), Employee Assistance Program, and Health Advocate
• Voluntary benefits at discounted group rates for accident, critical illness, and hospital indemnity
• Flexible Time Off Policy (includes vacation, sick, and personal time)
• Paid Parental Leave Program
• 10 Paid Holidays
• 401(k) Plan (company matching contributions up to 4%)

Equal Opportunity Employer, including disabled and veterans.

Please note that all positions require pre-employment screening, including drug and background check, as a condition of employment.

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