Accounts Payable Specialist — Construction Experience

About BlackOx Capital

BlackOx Capital is a cash acceleration firm serving construction-related businesses. While our primary client work focuses on accounts receivable and payment acceleration, strong internal accounting operations are essential to how we operate, scale, and support clients professionally.

We work with construction suppliers, distributors, and related companies where accurate accounting documentation, payment tracking, vendor coordination, and financial discipline matter.

This role supports BlackOx Capital's internal finance and accounting operations and may also support client-facing financial documentation when needed.

Role Summary

The Accounts Payable Specialist — Construction Experience is responsible for processing vendor invoices, tracking payments, maintaining AP records, supporting reconciliations, and ensuring accurate documentation.

This role requires construction accounting awareness, strong attention to detail, and the ability to work with vendor accounts, purchase orders, invoices, payment schedules, and financial records.

The ideal candidate has AP experience in construction, contracting, supplier, distribution, or project-based environments. Building material supplier experience is preferred, but not required.

Key Responsibilities

• Process vendor invoices accurately and on time.
• Review invoices for proper coding, approval, documentation, and payment terms.
• Match invoices to purchase orders, receipts, job numbers, contracts, or supporting documentation when applicable.
• Maintain accurate AP records and vendor files.
• Track payment due dates, scheduled payments, and outstanding vendor balances.
• Assist with weekly and monthly AP reporting.
• Support reconciliations of vendor accounts, statements, and payment records.
• Communicate professionally with vendors regarding invoice status, payment timing, documentation needs, and account questions.
• Work with internal accounting and operations teams to resolve invoice discrepancies.
• Assist with month-end close support related to payables.
• Help maintain AP controls, approval workflows, and documentation standards.
• Support cash visibility by organizing payables schedules and upcoming obligations.
• Assist with tax forms, vendor setup, W-9 documentation, and compliance records where applicable.
• Maintain confidentiality of company financial information.
• Support process improvements within AP workflow, documentation, and reporting.

Required Qualifications

• Minimum 2 years of experience in accounts payable, accounting support, bookkeeping, construction accounting, vendor coordination, finance administration, or related work.
• Experience working with construction-related businesses, contractors, suppliers, distributors, or project-based accounting.
• Understanding of vendor invoices, payment terms, purchase orders, approvals, and account reconciliation.
• Strong attention to detail and accuracy.
• Comfortable working with spreadsheets, accounting software, email, and document management tools.
• Ability to manage deadlines and recurring payment schedules.
• Professional communication skills with vendors and internal teams.
• Strong organizational skills.
• Ability to handle confidential financial information.
• Dependable, disciplined, and process-oriented.

Preferred Qualifications

• Experience with building material suppliers is preferred but not required.
• Experience with construction accounting, job costing, lien waivers, retainage, subcontractor invoices, supplier invoices, or project-based billing.
• Familiarity with accounting platforms, ERP systems, QuickBooks, Sage,
• Viewpoint, Foundation, NetSuite, or similar tools.
• Experience assisting with month-end close.
• Experience maintaining vendor files, W-9s, certificates of insurance, or compliance documentation.
• Knowledge of purchase orders, job numbers, cost codes, and construction payment documentation.

Core Competencies

• Accuracy.
• AP process discipline.
• Construction accounting awareness.
• Vendor communication.
• Documentation.
• Reconciliation.
• Confidentiality.
• Time management.
• Problem-solving.
• Internal coordination.

Work Environment

This is a hybrid role requiring 2–3 days per week in office. The role involves invoice processing, vendor communication, AP tracking, accounting documentation, and internal financial coordination.

The Accounts Payable Specialist must be comfortable working with deadlines, sensitive financial records, and recurring accounting processes.

Benefits

• BlackOx Capital offers market-common benefits consistent with professional roles in the Seattle area, including:
• Medical, dental, and vision insurance.
• Flexible PTO.
• Paid holidays.
• Hybrid work schedule. 401(k) plan or retirement benefit access.
• Laptop and work tools.
• Professional development support.
• Twice-yearly performance bonus eligibility.
• Phone or technology stipend where applicable.

Equal Opportunity Statement

BlackOx Capital is an equal opportunity employer. We encourage qualified candidates with AP, accounting, construction, supplier, vendor management, and finance operations experience to apply.