AR Specialist

Mills Electric; Bellingham (WA); Hybrid; USD 39,000 - 48,000; Part time

Benefits offered by this job

401K Match

Job summary

Mills Electric in Bellingham, WA is seeking a Part-Time Accounts Receivable Specialist to manage invoicing, contract billing, and collections for a growing electrical construction business. This 20-hour per week role offers remote work after an in-person training period and requires strong attention to detail and independent work habits.

You will handle lump-sum, time-and-material, and progress billing, track retainage and milestones, and collaborate with the finance team to keep receivables

Qualifications

• 3+ years in accounts receivable, contract billing, or construction accounting.
• Experience handling multiple invoices and contracts.
• Understanding of contract terms and billing documentation.
• Experience with time-and-material billing, retainage, or change orders is a plus.
• Strong organization and attention to detail.
• Comfortable communicating with customers about receivables.
• Ability to work independently and meet deadlines.
• Experience with Viewpoint/Spectrum or similar software is a plus.

Responsibilities

• Manage invoicing across multiple contracts and projects.
• Review contracts, POs, and billing requirements for accuracy.
• Prepare and submit invoices including lump-sum, time-and-material, and progress billing.
• Track retainage, change orders, milestones.
• Monitor aging and follow up on outstanding invoices.
• Communicate with customers about payment status and past-due balances.
• Identify billing issues and coordinate with internal teams.
• Maintain records of invoices, collections activity, and payments.
• Assist AR reporting and provide visibility into receivables.

Skills

Accounts receivable

Contract billing

Construction accounting

Time management

Detail oriented

Customer communication

Tools

Viewpoint/Spectrum

Job description

Part-Time Accounts Receivable Specialist

Bellingham, Washington

Remote after training period in person

Part-Time | Approximately 20 Hours per Week

Compensation: $28–$35 per hour, depending on experience

Mills Electric is seeking an experienced Accounts Receivable Specialist to support customer invoicing, contract billing, and collections for our growing electrical construction business.

This is a part-time position of approximately 20 hours per week and is ideal for someone with strong accounts receivable and contract billing experience who is organized, detail-oriented, and comfortable taking ownership of invoicing and follow-up.

Key Responsibilities

• Manage invoicing across multiple customer contracts and projects.
• Review contracts, purchase orders, and customer billing requirements to ensure invoices are accurate and compliant.
• Prepare and submit invoices in a timely manner, including lump-sum, time-and-material, progress, and other contract-based billing.
• Track retainage, change orders, billing milestones, and other contract requirements.
• Monitor accounts receivable aging and proactively follow up on outstanding invoices.
• Communicate professionally with customers regarding payment status, billing questions, and past-due balances.
• Identify billing issues that may delay payment and work with internal teams to resolve them quickly.
• Maintain accurate records of invoices, collections activity, customer correspondence, and payment commitments.
• Assist with AR reporting and provide visibility into outstanding receivables and potential collection concerns.

Qualifications

• 3+ years of accounts receivable, contract billing, construction accounting, or related experience preferred.
• Experience managing multiple customer invoices and contracts simultaneously.
• Strong understanding of contract terms, payment requirements, and billing documentation.
• Construction, electrical contracting, industrial contracting, or project-based accounting experience preferred.
• Experience with time-and-material billing, progress billing, retainage, and change orders is a plus.
• Strong organizational skills and attention to detail.
• Comfortable communicating directly with customers regarding outstanding receivables.
• Ability to work independently, manage deadlines, and follow through on outstanding items.
• Experience with Viewpoint/Spectrum or similar construction accounting software is a plus.

What We’re Looking For

We are looking for someone who understands that strong accounts receivable management goes beyond simply sending invoices. The right person will stay ahead of billing deadlines, understand customer and contract requirements, follow up consistently on outstanding balances, and help ensure Mills Electric is paid accurately and on time.

This position will work closely with our finance team, project managers, and company leadership.

Pay Range: $28–$35/hour DOE

Benefits

• 401K Match

Schedule: 20 hours per week