Senior Accounts Receivable & Collections Specialist

Pacifica Engineering Services is seeking a Senior Accounts Receivable & Collections Specialist to join our accounting team. This role is responsible for managing client receivables, following up on outstanding invoices, resolving billing issues, and helping reduce the company’s AR balance.The ideal candidate must be highly organized, persistent, professional, and comfortable communicating directly with clients, contractors, owners, and internal project managers. This is not a passive accounting role. We need someone who understands how to collect money, identify the right client contacts, follow up by email and phone, document collection efforts, and push invoices through to payment.Key ResponsibilitiesManage and monitor the company’s accounts receivable aging report.Follow up consistently on outstanding invoices by email and phone.Identify the correct client contacts responsible for payment approvals.Coordinate with project managers to resolve billing questions, backup documentation issues, contract questions, or client disputes.Track collection activity and provide weekly status updates on outstanding AR.Help reduce overdue receivables and improve cash flow.Work closely with accounting leadership to prioritize high-dollar and aging accounts.Maintain professional communication with clients while being firm and consistent.Assist with billing, payment application, collections reporting, and AR cleanup as needed.RequirementsExperience in accounts receivable, collections, billing, or accounting.Strong understanding of invoices, aging reports, payment follow-up, and client account management.Comfortable making collection calls and sending professional follow-up emails.Strong communication and organizational skills.Ability to work with project managers and clients to resolve issues quickly.Experience with QuickBooks, accounting software, or construction/engineering billing systems preferred.AEC, construction, engineering, or professional services experience is a plus.